An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for India’s South West Monsoon 2023 shows that there were 2176 instances when a district rainfall of a day was above 50 mm. Such high rainfall instances included 1759 instances when rainfall was 50-100 mm, 329 instances when it was 100-150 mm, 64 times it was 150-200 mm and 24 times above 200 mm. Out of 717 districts of India, 531 districts or, about 74% of the districts experienced such high rainfall days during SW monsoon 2023.
The month wise break of the high rainfall district days during the monsoon months of June 2023[i], July 2023[ii], Aug 2023[iii] and Sept 2023[iv] are in respective articles in detail. Here we will look at the month wise figures of such instances in each of the states for SW Monsoon 2023. We will do it by looking at five regions of India: North, East, North East, West and South India. Detailed articles on June[v], June-July 2023[vi], June-Aug 2023[vii] and Monsoon 2023[viii] provide more information about district wise, state wise rainfall in respective months.
NORTH EAST INDIA: Arunachal Pradesh The number of district days that experienced high rainfall events in Arunachal Pradesh in each of the four months of SW Monsoon 2024 is given in table below.
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 12 (16) | 23 | 6 | 1 | 1 | 0 | 31 |
| July 2024 | 9 | 22 | 2 | 1 | 0 | 0 | 25 |
| Aug 2024 | 8 | 17 | 2 | 0 | 0 | 0 | 19 |
| Sept 2024 | 6 | 8 | 0 | 0 | 0 | 0 | 8 |
| SW Monsoon 2024 | 13 (16) | 70 | 10 | 2 | 1 | 0 | 83 |
In Arunachal Pradesh, the highest number of such events happened in Lower Dibang Valley (19), Papumpare (12 + 3 in early Oct) and Changlang (12 + 1 in early Oct) districts. Thus three districts alone had 43 (+4) out of 83 such events in the state. Lower Dibang Valley, Paupmpare and E Siang (10 +1 in 2024) districts also had the highest such number in SW monsoon 2021, 2022 and 2023. Changlang, East Siang, Lower Dibang Valley, Papum Pare, Tirap and Upper Siang districts had such events in each of the four monsoon months, as also in Oct 2024.
Assam
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 19 (27) | 48 | 13 | 3 | 0 | 0 | 64 |
| July 2024 | 19 | 40 | 2 | 1 | 0 | 0 | 43 |
| Aug 2024 | 12 | 15 | 0 | 0 | 0 | 0 | 15 |
| Sept 2024 | 6 | 6 | 0 | 0 | 0 | 0 | 6 |
| SW Monsoon 2024 | 25 (27) | 109 | 15 | 4 | 0 | 0 | 128 |
The highest number of such instances happened in Kokrajhar (15), Barpeta (11), Dhubri (11), Nalbari (11). Chirang, Bongaigaon, Jorhat and Kokrajhar had such instances in all four monsoon months.
Meghalaya
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 10 (11) | 38 | 17 | 1 | 3 | 4 | 63 |
| July 2024 | 11 | 32 | 4 | 7 | 1 | 3 | 47 |
| Aug 2024 | 9 | 23 | 5 | 5 | 2 | 1 | 36 |
| Sept 2024 | 4 | 8 | 0 | 0 | 0 | 0 | 8 |
| SW Monsoon 2024 | 11 (11) | 101 | 26 | 13 | 6 | 8 | 154 |
All the districts of Meghayala had a number of such instances. East Garo Hills (19), E Khasi Hills (28) and SW Khasi Hills (29) had the highest number of such instances. East Garo Hills, W Garo Hills W Khasi Hills and SW Khasi Hills had such instances in all four monsoon months.
Nagaland
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 1 (11) | 1 | 0 | 0 | 0 | 0 | 1 |
| July 2024 | 5 | 6 | 0 | 0 | 0 | 0 | 6 |
| Aug 2024 | 2 | 1 | 1 | 0 | 0 | 0 | 2 |
| Sept 2024 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| SW Monsoon 2024 | 6 (11) | 9 | 1 | 0 | 0 | 0 | 10 |
Mokokchung had the highest number of such instances at 4. None of the districts had such instances in all four monsoon months.
Manipur
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 1 (9) | 2 | 0 | 0 | 0 | 2 |
| July 2024 | 5 | 7 | 0 | 0 | 0 | 7 |
| Aug 2024 | 3 | 7 | 0 | 0 | 0 | 7 |
| Sept 2024 | 1 | 1 | 0 | 0 | 0 | 1 |
| SW Monsoon 2024 | 5 (9) | 17 | 0 | 0 | 0 | 17 |
Tamenglong (9) had the highest no of such instances, followed by Bishnupur (4).
Mizoram
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 4 (8) | 7 | 0 | 0 | 0 | 0 | 7 |
| July 2024 | 4 | 8 | 0 | 0 | 0 | 0 | 8 |
| Aug 2024 | 6 | 12 | 1 | 0 | 0 | 0 | 13 |
| Sept 2024 | 2 | 4 | 0 | 0 | 0 | 0 | 4 |
| SW Monsoon 2024 | 6 (8) | 31 | 1 | 0 | 0 | 0 | 32 |
Aizwal (11), Kolasib (7), Mamit (6) had the highest, 24 of the 31 High Rainfall District Day instances of Mizoram in SW Monsoon 2024. Only Aizwal had such instances in all the four months of SW monsoon 2024.
Tripura
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 6 (8) | 13 | 2 | 0 | 0 | 0 | 15 |
| July 2024 | 6 | 8 | 2 | 0 | 0 | 0 | 10 |
| Aug 2024 | 8 | 13 | 11 | 2 | 1 | 2 | 29 |
| Sept 2024 | 2 | 3 | 0 | 0 | 0 | 0 | 3 |
| SW Monsoon 2024 | 8 (8) | 37 | 15 | 2 | 1 | 2 | 57 |
All 8 districts had one or more instances in SW Monsoon 2023 when rainfall was over 50 mm in a day. Unakoti had the highest no of district days (10) when daily rainfall exceeded 50 mm.
All Eight districts had rainfall over 100 mm on Aug 20, 2024, 5 districts above 50 mm on Aug 21 and also five districts on Aug 22. It was this rainfall that started on Aug 19 that brought massive floods across Tripur and then also contributed to Bangladesh floods, but the disaster management could not wake up to this in time.
Sikkim
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 6 (6) | 8 | 0 | 0 | 0 | 0 | 8 |
| July 2024 | 5 | 9 | 0 | 0 | 0 | 0 | 9 |
| Aug 2024 | 4 | 6 | 0 | 0 | 0 | 0 | 6 |
| Sept 2024 | 6 | 16 | 3 | 0 | 0 | 0 | 19 |
| SW Monsoon 2024 | 6 (6) | 39 | 3 | 0 | 0 | 0 | 42 |
Soreng district had the highest number of high rainfall events (12). Gangtok, Gyalsingh and Soreng had a high rainfall day in each of the four monsoon months.
North East India The figures of High Rainfall district days for the SW Monsoon 2024 for North East India states are given in the table blow.
| State | Districts that had over 50 mm rainfall at least on one day in Monsoon 2024 (Total no of districts) | No of district days when rainfall 50-100 mm | No of district days when Rainfall 100-150 mm | No of district days when Rainfall 150-200 | No of district days when Rainfall 200-250 | No of district days when Rainfall over 250 mm | Total no of district days when rainfall over 50 mm |
| Arunachal Pradesh | 13 (16) | 70 | 10 | 2 | 1 | 0 | 83 |
| Assam | 25 (27) | 109 | 15 | 4 | 0 | 0 | 128 |
| Meghalaya | 11 (11) | 101 | 26 | 13 | 6 | 8 | 154 |
| Nagaland | 6 (11) | 9 | 1 | 0 | 0 | 0 | 10 |
| Manipur | 5 (9) | 17 | 0 | 0 | 0 | 0 | 17 |
| Mizoram | 6 (8) | 31 | 1 | 0 | 0 | 0 | 32 |
| Tripura | 8 (8) | 37 | 15 | 2 | 1 | 2 | 57 |
| Sikkim | 6 (6) | 39 | 3 | 0 | 0 | 0 | 42 |
| North East India | 80 (96) | 413 | 71 | 21 | 8 | 10 | 523 (509) |
So more than 85% of the districts in North East India had high rainfall day during SW Monsoon 2024, compared to 85% in 2023, 88% in 2022 and 80% in 2021, even in an year when six out of eight states (Tripura and Sikkim were exceptions) in NE India had below 100% rainfall. Like in 2023 and 2022, when seven of the eight NE states had below normal rainfall.
EAST INDIA: West Bengal
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 6 (23) | 31 | 8 | 1 | 0 | 0 | 40 |
| July 2024 | 14 | 33 | 9 | 2 | 0 | 0 | 44 |
| Aug 2024 | 17 | 25 | 5 | 2 | 0 | 0 | 32 |
| Sept 2024 | 23 | 50 | 8 | 5 | 0 | 0 | 63 |
| SW Monsoon 2024 | 23 (23) | 139 | 30 | 10 | 0 | 0 | 179 (81) |
All 23 districts of W Bengal had high rainfall days in Monsoon 2024. Alipurduar (26), Jalpaiguri & Kalimpong (15 each), Cooch Behar (18) and Darjeeling (13) had the highest number of high rainfall days in Monsoon 2024. Alipurduar, Cooch Behar and Kalimpong had such days in each of the four monsoon months. W Bengal had in SW Monsoon 2024 179 high rainfall dist days, more than double the number (81) it had in SW Monsoon 2023.
Odisha
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 9 (30) | 10 | 0 | 0 | 0 | 0 | 10 |
| July 2024 | 12 | 22 | 0 | 1 | 0 | 0 | 23 |
| Aug 2024 | 15 | 17 | 1 | 0 | 0 | 0 | 18 |
| Sept 2024 | 16 | 23 | 0 | 1 | 0 | 0 | 24 |
| SW Monsoon 2024 | 25 (30) | 72 | 1 | 2 | 0 | 0 | 75 |
The only two instances when rainfall in a day exceeded 150 mm in a day happened on July 22, 2024 and Sept 9 2024, both in Malkangiri dist. Malkangiri district had the highest (10) instances when rainfall was over 50 mm in a day.
Jharkhand
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 1 (24) | 1 | 0 | 0 | 0 | 0 | 1 |
| July 2024 | 6 | 6 | 1 | 0 | 0 | 0 | 7 |
| Aug 2024 | 21 | 38 | 6 | 1 | 0 | 0 | 45 |
| Sept 2024 | 20 | 30 | 4 | 0 | 0 | 0 | 34 |
| SW Monsoon 2024 | 24 (24) | 75 | 11 | 1 | 0 | 0 | 87 (37) |
Palamu dist of Jharkhand had the highest (8) number of district days when rainfall exceeded 50 mm during SW Monsoon 2024. 31 of the 87 instances of High Rainfall dist days in SW Monsoon 2024 occurred during Aug 1-4, out of which Aug 3 was the rainiest day in Jharkhand, when the sole instance of rainfall exceeding 150 occurred in Ranchi dist. Similarly 26 such instances occurred during Sept 15-17.
Bihar
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 8 (38) | 9 | 1 | 0 | 0 | 0 | 10 |
| July 2024 | 14 | 24 | 0 | 0 | 0 | 0 | 24 |
| Aug 2024 | 7 | 8 | 0 | 0 | 0 | 0 | 8 |
| Sept 2024 | 17 | 17 | 4 | 1 | 1 | 1 | 24 |
| SW Monsoon 2024 | 24 (38) | 58 | 5 | 1 | 1 | 1 | 66 |
Bihar had 19% below normal rainfall in SW Monsoon 2024 (after 23% below normal rainfall in SW Monsoon 2023, 31% below normal in SW Monsoon 2022). Kishanganj (like in case of SW Monsoon 2023) had the highest number of high rainfall days at 8 (7 in 2023). The only districts with a rainfall in a day exceeding 150 mm were Araria (over 250 mm on Sept 27), Kishanganj (200-250 mm on Sept 27) and W Champaran (150-200 mm on Sept 28). In there was 20 high rainfall dist days during Sept 27-29 2024, involving 14 districts.
Uttar Pradesh
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 9 (75) | 10 | 0 | 0 | 0 | 0 | 10 |
| July 2024 | 32 | 51 | 8 | 1 | 1 | 0 | 61 |
| Aug 2024 | 22 | 28 | 0 | 0 | 0 | 0 | 28 |
| Sept 2024 | 55 | 64 | 18 | 6 | 0 | 0 | 88 |
| SW Monsoon 2024 | 61 (75) | 153 | 26 | 7 | 3 | 0 | 189 (147) |
Auraiya had the highest number of such instances (8), followed by Maharajganj (7). Basti was the only district during SW Monsoon 2024 that had (on July 7) over 200 mm rainfall in a day. During Sept 11-14, there were 39 instances when dist rainfall was over 50 mm in a day during SW Monsoon 2024. Similarly there were 34 instances when dist rainfall was over 50 mm in a day during Sept 27-28. Similarly there were 22 instances when dist rainfall was over 50 mm. during a day during Sept 18-19.
EAST INDIA
| State | Districts that had over 50 mm rainfall at least on one day in SW Monsoon 2024 (Total no of districts) | No of district days when rainfall 50-100 mm | No of district days when Rainfall 100-150 mm | No of district days when Rainfall 150-200 | No of district days when Rainfall 200-250 mm | No of district days when Rainfall over 250 mm | Total no of district days when rainfall over 50 mm |
| W Bengal | 23 (23) | 139 | 30 | 10 | 0 | 0 | 179 |
| Odisha | 25 (30) | 72 | 1 | 2 | 0 | 0 | 75 |
| Jharkhand | 24 (24) | 75 | 11 | 1 | 0 | 0 | 87 |
| Bihar | 24 (38) | 58 | 5 | 1 | 1 | 1 | 66 |
| UP | 61 (75) | 153 | 26 | 7 | 3 | 0 | 189 |
| East India | 157 (190) | 497 | 73 | 21 | 4 | 1 | 596 (459) |
So over 82.6% (76% in SW monsoon 2023, 77% in 2022 and 89% in 2021) of districts in East India had high rainfall days in SW Monsoon 2024. However, number of such instances per district is lower than that in NE India (523), even though number of districts is much larger in East India. The number of such instances are much higher than those in 2022 & 2023.
NORTH INDIA: Uttarakhand
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 1 (13) | 1 | 0 | 0 | 0 | 0 | 1 |
| July 2024 | 10 | 23 | 1 | 0 | 1 | 0 | 25 |
| Aug 2024 | 10 | 14 | 2 | 0 | 0 | 0 | 16 |
| Sept 2024 | 8 | 10 | 4 | 1 | 0 | 0 | 15 |
| SW Monsoon 2024 | 12 (13) | 48 | 7 | 1 | 1 | 0 | 57 (62) |
Uttarakhand had 10% above normal rainfall during SW Monsoon 2024 (after 4% deficit in 2023, 3% deficit in 2022 and 2% deficit in 2021). While there were 42 such instances in 2021, 45 in 2022 & 62 2023. Interestingly, in SW Monsoon 2024, though rainfall is higher than that in SW Monsoon 2023, the number of high rainfall district days have actually come down.
Only Bageshwar disrict had high rainfall days in all the four monsoon months in SW Mosoon 2024. Bageshwar had the highest number of such days at twelve (Bageshwar also had the highest such days in 2022 at 12 and in 2021 at nine), followed by Champawat (8). Like in 2021, 2022 and 2023 monsoon, Bageshwar had the highest rainfall of over 2557 mm, and highest surplus % at 223%, while second placed Dehradun (1751.4 mm rainfall) had 21% above normal rainfall.
Haryana
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 0 (22) | 0 | 0 | 0 | 0 | 0 | 0 |
| July 2024 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Aug 2024 | 9 | 10 | 1 | 0 | 0 | 0 | 11 |
| Sept 2024 | 4 | 5 | 0 | 0 | 0 | 0 | 5 |
| SW Monsoon 2024 | 10 (22) | 15 | 1 | 0 | 0 | 0 | 16 (36) |
This is the lowest number for Haryana in last four years. In 2021 monsoon, Haryana had 46 high rainfall district days, that came down in 2022 monsoon to 32 and to 36 in 2023. Only Ambala had a day rainfall exceeding 100 mm, on Aug 1 2024. In fact 9 of the 16 High Rainfall district days for Haryana for SW Monsoon 2024 happened on Aug 1 2024.
Gurgaon district had the highest (4) high rainfall days, Nuh had three, Faridabad 2, all three are NCR districts. Nuh had the highest Surplus % rainfall at 70%. However, the highest rainfall district was Yamunanagar, like in case of 2023. The state rainfall was 4% below normal in 2024 monsoon, 1% below normal in 2023.
Chandigarh Chanidgarh had two high rainfall days (July 3 and Aug 12) during SW Monsoon 2024, rainfall was 16% below normal. On Aug 12, rainfall was in the range 100-150 mm.
Delhi
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 6 (9) | 3 | 1 | 2 | 0 | 0 | 6 |
| July 2024 | 3 | 4 | 0 | 0 | 0 | 0 | 4 |
| Aug 2024 | 7 | 9 | 4 | 0 | 0 | 0 | 13 |
| Sept 2024 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| SW Monsoon 2024 | 9 (9) | 17 | 5 | 2 | 0 | 0 | 23 (23) |
The number of district days when rainfall exceeded 50 mm in a day were 42 in 2021 monsoon, has dropped to almost half at 23 each in 2024, 2023 and 2022 monsoon. Delhi state had 21% above normal rainfall in SW Monsoon 2024.
North Delhi district in Delhi State had the highest number (5) of high rainfall days in SW Monsoon 2024, while Central and East Delhi had 4 each. North Delhi also had the highest % surplus rainfall at 75% and the highest monsoon rainfall at 977.8 mm. On June 28, six out of nine districts of Delhi State had rainfall above 50 mm and two of them (New Delhi and North Delhi), the only ones during SW Monsoon 2024, had rainfall above 150 mm. On Aug 1, seven of nine districts of Delhi had rainfall over 50 mm, and four of them had rainfall above 100 mm. So 13 of the 23 High Rainfall district days of Delhi during SW Monsoon 2024 occurred on these two days: June 28 and Aug 1.
Punjab
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 1 (22) | 1 | 0 | 0 | 0 | 0 | 1 |
| July 2024 | 2 | 4 | 0 | 0 | 0 | 0 | 4 |
| Aug 2024 | 7 | 12 | 0 | 0 | 0 | 0 | 12 |
| Sept 2024 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SW Monsoon 2024 | 9 (22) | 17 | 0 | 0 | 0 | 0 | 17 (32) |
The number of high rainfall district days in Punjab in SW Monsoon 2023 were lowest in four years at 17, down from 32 in 2023, 31 in 2022 and 27 in 2021.
Punjab had 7% below normal rainfall in SW Monsoon 2021, and 6% in 2022 and 5% below normal in 2023 and massive 28% below normal in SW Monsoon 2024. Pathankot had the highest number (6) of high rainfall district days in SW monsoon 2024. SAS Nagar (Kapurthala in 2021 monsoon) had the highest number (4) of high rainfall days among all the Punjab districts both in 2023 and 2022. Like in 2021, 2022 and 2023 monsoon, Pathankot had the highest rainfall among all the districts in Punjab in SW Monsoon 2024. Aug 11-12 was the highest rainfall phase in Punjab during 2024, during which phase 6 of state’s 17 high rainfall district days occurred.
Himachal Pradesh
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 0 (12) | 0 | 0 | 0 | 0 | 0 | 0 |
| July 2024 | 2 | 3 | 1 | 0 | 0 | 0 | 4 |
| Aug 2024 | 8 | 15 | 2 | 0 | 0 | 0 | 17 |
| Sept 2024 | 3 | 4 | 0 | 0 | 0 | 0 | 4 |
| SW Monsoon 2024 | 8 (12) | 22 | 3 | 0 | 0 | 0 | 25 (65) |
The total of high rainfall district days in HP has massively gone up in SW Monsoon 2023 to 65 from 21 in 2022 and 17 in 2021. It again came down to 25 in SW Monsoon 2024. HP had 19% below normal rainfall in SW Monsoon 2024, from 19% above normal in 2023 and 3% below normal in 2022.
Kangra district had the highest number of high rainfall days among HP districts in SW monsoon 2024 at 6 (it was Sirmour in 2021 with 5 such instances and Kangra in 2022 with six, Mandi in 2023 with 11), followed by Mandi having five such days. While in SW Monsoon 2021, 2022 and 2023, Kangra had the highest rainfall among HP districts, in SW Monsoon 2024 it is Sirmaur that has the highest rainfall, but Shimla had the highest % above normal rainfall at 14%.
Jammu & Kashmir
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 0 (20) | 0 | 0 | 0 | 0 | 0 | 0 |
| July 2024 | 5 | 8 | 0 | 0 | 0 | 0 | 8 |
| Aug 2024 | 5 | 14 | 1 | 0 | 0 | 0 | 15 |
| Sept 2024 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| SW Monsoon 2024 | 7 (20) | 23 | 1 | 0 | 0 | 0 | 24 (30) |
The number of high rainfall events in J&K in SW Monsoon 2024 was 24, compared to 50 in 2022 and 30 in 2023. In 2024, only 7 districts of J&K had such events, down from 9 in 2023 and 15 in 2022. J&K had 26% below normal rainfall in SW Monsoon 2024, 5% above normal in 2023 and 6% above normal in 2022.
Jammu and Kathua districts had 7 and 6 high rainfall district days respectively in SW Monsoon 2024 (Reasi had the highest such number in 2022 and 2021 Monsoon at 8 & 6; Samba in 2023).
Ladakh The two districts of Ladakh had no high rainfall days in SW monsoon 2024. The total monsoon rainfall of Kargil was 11.2 mm (down from 32.2 in 2023, 32.3 in 2022) and that of Leh & Ladakh 30.6 mm, 8% and 18% above normal respectively.
NORTH INDIA
| State/ Union Territory | Districts that had over 50 mm rainfall at least on one day in SW Monsoon 2024 (Total no of districts) | No of district days when rainfall 50-100 mm | No of district days when Rainfall 100-150 mm | No of district days when Rainfall 150-200 | No of district days when Rainfall 200-250 | No of district days when Rainfall over 250 mm | Total no of district days when rainfall over 50 mm |
| Uttarakhand | 12 (13) | 48 | 7 | 1 | 1 | 0 | 57 |
| Haryana | 10 (22) | 15 | 1 | 0 | 0 | 0 | 16 |
| Chandigarh | 0 (1) | 0 | 0 | 0 | 0 | 0 | 0 |
| Delhi | 9 (9) | 17 | 5 | 2 | 0 | 0 | 24 |
| Punjab | 9 (22) | 17 | 0 | 0 | 0 | 0 | 17 |
| Himachal P | 8 (12) | 22 | 3 | 0 | 0 | 0 | 25 |
| J & Kashmir | 7 (20) | 23 | 1 | 0 | 0 | 0 | 24 |
| Ladakh | 0 (2) | 0 | 0 | 0 | 0 | 0 | 0 |
| North India | 55 (101) | 142 | 17 | 3 | 1 | 0 | 163 (253) |
The number of high rainfall dist days have gone down across North India in SW Monsoon 2024 compared to those in 2023, as rainfall in 2024 was below that in 2023 across the region.
WEST INDIA: Rajasthan This traditionally low rainfall area of India with ten districts had no days with district rainfall over 50 mm on any day in SW Monsoon 2021 in any district when seasonal rainfall in this region was 20% above normal. The norm for high rainfall day needs to be reduced in case of regions like Ladakh and W Rajasthan, but question is what can be considered a high rainfall day for these regions?
Rajasthan
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2023 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 1 (33) | 1 | 0 | 0 | 0 | 0 | 1 |
| July 2024 | 10 | 10 | 1 | 0 | 0 | 0 | 11 |
| Aug 2024 | 30 | 55 | 7 | 0 | 0 | 0 | 62 |
| Sept 2024 | 9 | 10 | 1 | 0 | 0 | 0 | 11 |
| SW Monsoon 2024 | 30 (33) | 76 | 9 | 0 | 0 | 0 | 85 (41) |
Rajasthan had 56% above normal rainfall in SW Monsoon 2024 (15% above normal in 2023, 36% above normal in 2022), with Nine (1 in 2023, 5 and 4 in 2022 and 2021) districts having rainfall over 1000 mm, Dausa having the highest rainfall at 1409.4 mm. Pratapgarh and Sawai Madhopur (Sirohi in 2023 & 2022 and Baran in 2021) district had the highest number of high rainfall days at 7 among all the districts of Rajasthan. Dausa had six, while Baran and Tonk had five each.
Aug 5-6 had the highest number of high rainfall days in Rajasthan, with 16 high rainfall district days on just these two dates. Aug 25-27 had 10 such instances.
Madhya Pradesh
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 5 (52) | 5 | 0 | 0 | 0 | 0 | 5 |
| July 2024 | 35 | 49 | 3 | 0 | 0 | 0 | 52 |
| Aug 2024 | 38 | 54 | 11 | 0 | 0 | 0 | 65 |
| Sept 2024 | 33 | 36 | 9 | 4 | 0 | 0 | 49 |
| SW Monsoon 2024 | 50 (52) | 144 | 23 | 4 | 0 | 0 | 171 (160) |
While MP had 18% above Normal rainfall during SW Monsoon 2024 (Normal in 2023, 23% above normal in 2022), Mandla, Alirajpur and Shahdol (Narsihimapura, Seoni and Ratlam in 2023; Bhopal, Rajgarh and Narmadapuram in 2022) districts had the highest rainfall. Alirajpur (8) and Sheopur (7) had the highest number of high rainfall days in 2024 (Burhanpur, Narshimapura and Seoni in 2023; Bhopal and Narmadapuram in 2022 with eleven each and Guna in 2021 had 8 such days). 10-12 Sept 2024 was the highest rainfall phase in 2024, with 31 instances of high rainfall instances in this period alone with all four instances when rainfall in a day exceeded 150 mm. Aug 4-5 was another such phase when 26 instances of high rainfall district days occurred in MP in SW Monsoon 2024.
Diu, Daman, Dadar & Nagarhaveli
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 1 (3) | 1 | 0 | 0 | 0 | 0 | 1 |
| July 2024 | 3 | 9 | 5 | 1 | 0 | 0 | 15 |
| Aug 2024 | 2 | 2 | 4 | 1 | 1 | 1 | 9 |
| Sept 2024 | 3 | 5 | 3 | 0 | 0 | 0 | 8 |
| SW Monsoon 2024 | 3 (3) | 17 | 12 | 2 | 1 | 1 | 33 |
Rainfall here in SW Monsoon 2024 was 31% (12% in 2023) above normal at 2885.2 mm. 16 of the 33 high rainfall days were in Dadar-Nagarhaveli district.
Gujarat
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 2 (33) | 2 | 0 | 0 | 0 | 0 | 3 |
| July 2024 | 23 | 52 | 20 | 4 | 0 | 1 | 77 |
| Aug 2024 | 29 | 37 | 28 | 6 | 4 | 3 | 78 |
| Sept 2024 | 20 | 28 | 3 | 0 | 0 | 0 | 31 |
| SW Monsoon 2024 | 32 (33) | 119 | 51 | 10 | 4 | 4 | 188 (98) |
Gujarat state had 48% above normal rainfall in SW Monsoon 2024, compared to 18% surplus in 2023 and 27% surplus in 2022. So number of high rainfall district days have gone up to 188 compared to 98 in 2023 and 137 in 2022. Only Banaskantha district had no high rainfall district days. Navsari had the highest number of such days at 18, followed by Valsad (16), Dangs (13), Surat (12) and Junagarh (11. Only Devbhumi Dwarka had a day with rainfall over 300 mm, on Aug 28. Navsari had the highest rainfall at 2571.7 mm and Surendranagar had the lowest at 644.4 mm. Devbhumi Dwarka had the highest surplus rainfall at 231%. Aug 26-29 was the phase of highest rainfall in Gujarat with 53 instances of high rainfall district days.
Goa
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 2 (2) | 9 | 2 | 0 | 0 | 0 | 11 |
| July 2024 | 2 | 17 | 12 | 1 | 1 | 1 | 32 |
| Aug 2024 | 2 | 10 | 4 | 0 | 0 | 0 | 14 |
| Sept 2024 | 2 | 4 | 0 | 0 | 0 | 0 | 4 |
| SW Monsoon 2024 | 2 (2) | 40 | 18 | 1 | 1 | 1 | 61 (48) |
During SW Monsoon 2024, Goa had 46% above normal rainfall, compared to 12% above normal in 2023 and 8% below normal in 2022. This is also reflected in increase in no of high rainfall days from 35 in 2022 to 48 in 2023 to now 61 in 2024. More than half the number of High Rainfall district days occurred in July.
Maharashtra
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 10 (36) | 25 | 1 | 0 | 0 | 0 | 26 |
| July 2024 | 18 | 92 | 36 | 3 | 1 | 1 | 133 |
| Aug 2024 | 13 | 29 | 5 | 0 | 0 | 0 | 34 |
| Sept 2024 | 18 | 27 | 1 | 4 | 0 | 0 | 32 |
| SW Monsoon 2024 | 29 (36) | 173 | 43 | 7 | 1 | 1 | 225 (177) |
SW Monsoon 2024 rainfall in Maharashtra was 26% above normal, compared to 3% below normal in 2023 and 23% above normal in 2022. This is also reflected in higher number of instances of high rainfall events in 2024 (225) compared to those in 2023 (177) and 2022 (205). The highest number of such instances were in seven districts of Konkan, which is the high rainfall region of Maharashtra. 161 (134 in 2023) of the 225 instances given in table above happened in Konkan districts with highest number of such instances in Raigarh (31), like in 2023 (24). Outside Konkan, the highest number of high rainfall events in SW Monsoon 2024 happened in Gadchiroli (7) and Kolhapur (13), like in case of 2023.
Chhattisgarh
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 4 (33) | 4 | 0 | 0 | 0 | 0 | 4 |
| July 2024 | 20 | 35 | 10 | 0 | 0 | 0 | 45 |
| Aug 2024 | 15 | 31 | 1 | 0 | 0 | 0 | 32 |
| Sept 2024 | 21 | 20 | 6 | 3 | 0 | 0 | 29 |
| SW Monsoon 2024 | 28 (33) | 90 | 17 | 3 | 0 | 0 | 110 (90) |
The rainfall in Chhattisgarh in SW Monsoon 2024 was 9% above normal, compared to 4% below normal in 2023 and 13% above normal in 2022. The number of instances of high rainfall event are thus 110 in SW Monsoon 2024 compared to 90 in 2023 and 110 in 2022. Bijapur district had the highest number of such instances at 13. Bijapur also had the highest rainfall at 2388.9 mm (in 2023: 1701.9 mm, 24% above normal), 75% above normal.
WEST INDIA
| State | Districts that had over 50 mm rainfall at least on one day in SW Monsoon 2024 (Total no of districts) | No of district days when rainfall 50-100 mm | No of district days when Rainfall 100-150 mm | No of district days when Rainfall 150-200 | No of district days when Rainfall 200-250 | No of district days when Rainfall over 250 mm | Total no of district days when rainfall over 50 mm |
| Rajasthan | 30 (33) | 76 | 9 | 0 | 0 | 0 | 85 |
| Madhya Pradesh | 50 (52) | 144 | 23 | 4 | 0 | 0 | 171 |
| Diu Daman, Dadra Nagahaveli | 3 (3) | 17 | 12 | 2 | 1 | 1 | 33 |
| Gujarat | 32 (33) | 119 | 51 | 10 | 4 | 4 | 188 |
| Goa | 2 (2) | 40 | 18 | 1 | 1 | 1 | 61 |
| Maharashtra | 29 (36) | 173 | 43 | 7 | 1 | 1 | 225 |
| Chhattisgarh | 28 (33) | 90 | 17 | 3 | 0 | 0 | 110 |
| West India | 174 (192) | 659 | 173 | 27 | 7 | 7 | 873 (649) |
The SW Monsoon 2024 thus had 873 high rainfall district days in West India compared to 649 in 2023, 793 in 2022 and 598 in 2021.
SOUTH INDIA: Andhra Pradesh
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 3 (26) | 3 | 0 | 0 | 0 | 0 | 3 |
| July 2024 | 11 | 11 | 0 | 0 | 0 | 0 | 11 |
| Aug 2024 | 11 | 13 | 3 | 0 | 0 | 0 | 16 |
| Sept 2024 | 11 | 13 | 1 | 2 | 1 | 0 | 9 |
| SW Monsoon 2024 | 20 (26) | 40 | 4 | 2 | 1 | 0 | 47 (18) |
The number of high rainfall days in Andhra Pradesh in SW Monsoon 2024 is BY FAR the highest at 47, compared to 18 in 2023, 4 in 2022 and 7 in 2021. Andhra Pradesh rainfall in SW Monsoon 2024 was 27% above normal. B R Ambedkar Konaseema district had the highest number (5) of high rainfall district days.
Telangana
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 4 (33) | 4 | 0 | 0 | 0 | 0 | 4 |
| July 2024 | 10 | 18 | 0 | 0 | 0 | 0 | 18 |
| Aug 2024 | 12 | 16 | 0 | 0 | 0 | 0 | 16 |
| Sept 2024 | 31 | 34 | 7 | 3 | 1 | 1 | 46 |
| SW Monsoon 2024 | 33 (33) | 72 | 7 | 3 | 1 | 1 | 84 (108) |
Telangana rainfall in SW Monsoon 2024 was 27% above normal. Rainfall was 15% above normal in SW Monsoon 2023 and yet the number of high rainfall district days in 2023 (108) were much higher than those in SW Monsoon 2024 (84).
Tamil Nadu
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 0 (38) | 0 | 0 | 0 | 0 | 0 | 0 |
| July 2024 | 3 | 6 | 0 | 0 | 0 | 0 | 6 |
| Aug 2024 | 6 | 6 | 0 | 0 | 0 | 0 | 6 |
| Sept 2024 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| SW Monsoon 2024 | 10 (38) | 13 | 0 | 0 | 0 | 0 | 13 |
Rainfall in Tamil Nadu in SW Monsoon 2024 was 18% above normal, compared to 8% above normal in the previous year.
Puducherry
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 1 (4) | 5 | 1 | 0 | 0 | 0 | 6 |
| July 2024 | 2 | 9 | 3 | 0 | 0 | 0 | 12 |
| Aug 2024 | 3 | 4 | 0 | 1 | 0 | 0 | 5 |
| Sept 2024 | 1 | 2 | 0 | 0 | 0 | 0 | 2 |
| SW Monsoon 2024 | 3 (4) | 20 | 4 | 1 | 0 | 0 | 25 |
Puducherry in SW Monsoon 2024 had 19% above normal rainfall with Mahe district having by far the highest rainfall at 2755.4 mm, 16% above normal rainfall. The Highest surplus % was for Puducherry district at 43%.
Karnataka
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 7 (31) | 17 | 4 | 0 | 0 | 0 | 21 |
| July 2024 | 6 | 70 | 13 | 0 | 0 | 0 | 83 |
| Aug 2024 | 5 | 6 | 4 | 0 | 0 | 0 | 10 |
| Sept 2024 | 4 | 5 | 0 | 0 | 0 | 0 | 5 |
| SW Monsoon 2024 | 10 (31) | 98 | 21 | 0 | 0 | 0 | 119 (61, 143) |
Karnataka had 11% above normal rainfall in SW Monsoon 2024, so its high rainfall district days have almost doubled from 61 in previous year to 119 now. However, it is still below the number (143) for 2022. When SW Monsoon rainfall in Karnataka was 30% above normal.
Kerala
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 12 (14) | 20 | 2 | 0 | 0 | 0 | 22 |
| July 2024 | 13 | 43 | 7 | 3 | 1 | 0 | 54 |
| Aug 2024 | 9 | 17 | 0 | 0 | 0 | 0 | 17 |
| Sept 2024 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SW Monsoon 2024 | 14 (14) | 80 | 9 | 3 | 1 | 0 | 93 (91) |
Kerala rainfall in SW Monsoon 2024 was 14% below normal, similar to the case in 2022 monsoon when rainfall was 13% below normal. In 2023 SW Monsoon, rainfall in Kerala was even lower at 34% below normal.
Andaman & Nicobar Islands
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 2 (3) | 6 | 0 | 0 | 0 | 0 | 6 |
| July 2024 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| Aug 2024 | 3 | 4 | 1 | 0 | 0 | 0 | 5 |
| Sept 2024 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| SW Monsoon 2024 | 3 (3) | 12 | 1 | 0 | 0 | 0 | 33 (33) |
Lakshadweep Islands
| Month | No of districts that had over 50 mm rainfall in at least one day in monsoon 2024 (total no of districts) | No of district days when rainfall 50-100 mm | No of district days when rainfall 100-150 mm | No of district days when rainfall 150-200 mm | No of district days when rainfall 200-250 mm | No of district days when rainfall 250+ mm | TOTAL no of dist days when rainfall over 50 mm |
| June 2024 | 1 (1) | 1 | 0 | 0 | 0 | 0 | 1 |
| July 2024 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| Aug 2024 | 1 | 3 | 1 | 0 | 0 | 0 | 4 |
| Sept 2024 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SW Monsoon 2024 | 1 (1) | 5 | 1 | 0 | 0 | 0 | 6 |
SOUTH INDIA
| State | Districts that had over 50 mm rainfall at least on one day in SW Monsoon 2024 (Total no of districts) | No of district days when rainfall 50-100 mm | No of district days when Rainfall 100-150 mm | No of district days when Rainfall 150-200 | No of district days when Rainfall 200-250 | No of district days when Rainfall over 250 mm | Total no of district days when rainfall over 50 mm |
| Andhra Pradesh | 20 (26) | 40 | 4 | 2 | 1 | 0 | 47 |
| Telangana | 33 (33) | 72 | 7 | 3 | 1 | 1 | 84 |
| Tamil Nadu | 10 (38) | 13 | 0 | 0 | 0 | 0 | 13 |
| Puducherry | 3 (4) | 20 | 4 | 1 | 0 | 0 | 25 |
| Karnataka | 10 (31) | 98 | 21 | 0 | 0 | 0 | 119 |
| Kerala | 14 (14) | 80 | 9 | 3 | 1 | 0 | 93 |
| Lakshadweep | 1 (1) | 5 | 1 | 0 | 0 | 0 | 6 |
| Andaman & Nicobar | 3 (3) | 12 | 1 | 0 | 0 | 0 | 13 |
| South India | 94 (150) | 340 | 47 | 9 | 3 | 1 | 400 (306, 435) |
INDIA
| Region | Districts that had over 50 mm rainfall at least on one day in SW Monsoon 2024 (Total no of districts) | No of district days when rainfall 50-100 mm | No of district days when Rainfall 100-150 mm | No of district days when Rainfall 150-200 | No of district days when Rainfall 200-250 | No of district days when Rainfall over 250 mm | Total no of district days when rainfall over 50 mm |
| North East | 80 (96) | 413 | 71 | 21 | 8 | 10 | 523 |
| East | 157 (190) | 497 | 73 | 21 | 4 | 1 | 596 |
| North | 5 (101) | 142 | 17 | 3 | 1 | 0 | 163 |
| West | 174 (192) | 659 | 173 | 27 | 7 | 7 | 873 |
| South | 94 (150) | 340 | 47 | 9 | 3 | 1 | 400 |
| INDIA | 510 (729) | 2051 | 381 | 81 | 23 | 19 | 2555 (2176, 2377) |
The High rainfall events in 2020-2024 SW monsoon cross India as per India Meteorological department are as follows. Their definition of such events are different: Very Heavy Rainfall (VHR) 115.6-204.5 mm and Extremely Heavy Rainfall (HER) above 204.5 mm in a day at any station. IMD Press Release of Oct 1 2024 says: “The extreme rainfall events were more realized over Konkan & Goa, coastal Karnataka, Uttaranchal, Himachal Pradesh, Gujarat, West Madhya Pradesh, Telangana, Bihar, Orissa and Gangetic West Bengal.”
| 2020 (956.7 mm) | 2021 (874.6 mm) | 2022 (925 mm) | 2023 (820 mm) | 2024 (934.8 mm) | |||||||||||
| VHR | EHR | Total | VHR | EHR | Total | VHR | EHR | Total | VHR | EHR | Total | VHR | EHR | Total | |
| Jun | 262 | 36 | 298 | 277 | 35 | 312 | 237 | 80 | 317 | 429 | 65 | 494 | 284 | 51 | 335 |
| Jul | 447 | 90 | 537 | 638 | 121 | 759 | 829 | 131 | 960 | 1113 | 205 | 1318 | 1059 | 194 | 1253 |
| Aug | 1008 | 272 | 1173 | 272 | 28 | 300 | 577 | 63 | 640 | 402 | 66 | 468 | 762 | 132 | 894 |
| Sep | 308 | 61 | 369 | 449 | 89 | 538 | 231 | 22 | 253 | 377 | 85 | 462 | 527 | 96 | 623 |
| Total | 1912 | 341 | 2253 | 1636 | 273 | 1909 | 1874 | 296 | 2176 | 2321 | 421 | 2792 | 2632 | 473 | 3105 |
As we can see from the above table, the Very High and Extremely High rainfall frequency in SW Monsoon 2024 was the highest both for Sept 2024 and overall monsoon 2024. For July, it was July 2023 and for Aug it was Aug 2020 that had the highest such numbers. For June 2024, Very High Rainfall numbers were highest for June 2023 and the Extremely High rainfall frequency was highest for June 2022.
In the table above the figures in the bracket with the year is the SW Monsoon rainfall of those respective years. Here we can see that even though the highest rainfall in these five years was in 2020 at 956.7 mm, the highest number of Very High and Extremely Rainfall and their total have all been the highest for 2024 when the SW Monsoon rainfall at 934.8 mm was lower than that in 2020. This is possibly an indication of increasing intensification of rainfall pattern with changing climate.
The figures of Very High and Extremely High Rainfall frequency in SW Monsoon are several times higher than those of 100-200 mm and 200+ mm rainfall in our district wise rainfall figures since the former figures are station wise whereas the latter are the average of all stations in any district.
SANDRP (ht.sandrp@gmail.com)
[i] https://sandrp.in/2023/07/09/june-2023-high-rainfall-district-days-in-indias-sw-monsoon/
[ii] https://sandrp.in/2023/08/07/high-rainfall-days-in-indias-districts-in-july-2023/
[iii] https://sandrp.in/2023/09/16/high-rainfall-days-in-indias-districts-in-august-2023/
[iv] https://sandrp.in/2023/11/01/high-rainfall-days-in-indias-districts-in-sept-2023/
[v] https://sandrp.in/2023/07/07/june-2023-district-wise-rainfall-in-indias-sw-monsoon/
[vi] https://sandrp.in/2023/08/04/june-july-2023-district-wise-rainfall-in-in-indias-sw-monsoon/
[vii] https://sandrp.in/2023/09/01/june-aug-2023-district-wise-rainfall-in-in-indias-sw-monsoon/
[viii] https://sandrp.in/2023/10/02/sw-monsoon-2023-district-wise-rainfall-in-india/
SANDRP 