Weather Records in September 2026
20,878 weather records were set or tied in September 2026, with a daily chart by type, a record map and the top 20 by significance.
Key Facts for September 2026
- 20,878 weather records were set or tied in September 2026 across 30 days.
- 14,721 were record highs and 2,168 were record lows, counting maximum and minimum temperature.
- The busiest day of the month was 3 September 2026 with 1,240 records.
- Wattening set a monthly record daily precipitation of 55.4 mm (2.2 in) on 27 September 2026 (provisional).
Records per Day, by Type
20,878 records| Day of month | Highest daily maximum | Lowest daily maximum | Highest daily minimum | Lowest daily minimum | Heaviest daily rainfall | Heaviest daily snowfall | Deepest snow cover | Total |
|---|---|---|---|---|---|---|---|---|
| 1 | 103 | 48 | 271 | 26 | 73 | 0 | 0 | 521 |
| 2 | 176 | 105 | 399 | 23 | 163 | 0 | 0 | 866 |
| 3 | 241 | 246 | 492 | 26 | 235 | 0 | 0 | 1,240 |
| 4 | 263 | 190 | 517 | 39 | 211 | 1 | 1 | 1,222 |
| 5 | 278 | 41 | 398 | 14 | 104 | 0 | 0 | 835 |
| 6 | 191 | 176 | 321 | 12 | 146 | 0 | 0 | 846 |
| 7 | 119 | 76 | 365 | 22 | 178 | 0 | 0 | 760 |
| 8 | 161 | 22 | 368 | 16 | 132 | 0 | 0 | 699 |
| 9 | 246 | 22 | 415 | 12 | 120 | 0 | 0 | 815 |
| 10 | 244 | 27 | 430 | 7 | 124 | 0 | 0 | 832 |
| 11 | 156 | 8 | 354 | 11 | 86 | 0 | 0 | 615 |
| 12 | 164 | 19 | 355 | 9 | 80 | 0 | 0 | 627 |
| 13 | 180 | 129 | 450 | 19 | 127 | 0 | 0 | 905 |
| 14 | 158 | 35 | 446 | 20 | 124 | 0 | 0 | 783 |
| 15 | 190 | 14 | 399 | 43 | 133 | 0 | 0 | 779 |
| 16 | 258 | 14 | 458 | 8 | 182 | 0 | 0 | 920 |
| 17 | 234 | 20 | 558 | 12 | 144 | 0 | 0 | 968 |
| 18 | 269 | 8 | 455 | 13 | 119 | 0 | 0 | 864 |
| 19 | 227 | 6 | 337 | 9 | 132 | 0 | 0 | 711 |
| 20 | 254 | 26 | 239 | 3 | 160 | 0 | 0 | 682 |
| 21 | 155 | 18 | 208 | 10 | 87 | 0 | 0 | 478 |
| 22 | 87 | 22 | 128 | 24 | 48 | 0 | 0 | 309 |
| 23 | 50 | 26 | 185 | 15 | 108 | 0 | 0 | 384 |
| 24 | 76 | 33 | 174 | 5 | 100 | 0 | 1 | 389 |
| 25 | 66 | 43 | 244 | 8 | 112 | 0 | 0 | 473 |
| 26 | 66 | 25 | 165 | 39 | 98 | 0 | 0 | 393 |
| 27 | 23 | 26 | 163 | 35 | 111 | 0 | 0 | 358 |
| 28 | 39 | 58 | 217 | 31 | 186 | 0 | 0 | 531 |
| 29 | 62 | 78 | 189 | 18 | 197 | 0 | 0 | 544 |
| 30 | 55 | 71 | 230 | 7 | 165 | 0 | 1 | 529 |
Record Map
highest significance| Station | Country | Type | Value | Significance |
|---|---|---|---|---|
| Wattening | Australia | Record daily precipitation | 55.4 mm (2.2 in) | 90 of 100 (Exceptional) |
| Otaru | Japan | Record daily precipitation | 255.5 mm (10.1 in) | 86 of 100 (Exceptional) |
| Toyama | Japan | Record daily precipitation | 377.0 mm (14.8 in) | 85 of 100 (Exceptional) |
| Koloa Mauka 994 | United States | Record daily precipitation | 190.5 mm (7.5 in) | 83 of 100 (Exceptional) |
| Takayama | Japan | Record daily precipitation | 361.5 mm (14.2 in) | 83 of 100 (Exceptional) |
| Courtenay 1 NW | United States | Record daily precipitation | 171.5 mm (6.8 in) | 83 of 100 (Exceptional) |
| Kobe | Japan | Record daily precipitation | 410.0 mm (16.1 in) | 82 of 100 (Exceptional) |
| Guadalajara | Mexico | Record daily precipitation | 208.3 mm (8.2 in) | 81 of 100 (Exceptional) |
| Eagle Nest | United States | Record daily precipitation | 55.1 mm (2.2 in) | 81 of 100 (Exceptional) |
| Zoseni | Latvia | Record daily precipitation | 98.2 mm (3.9 in) | 80 of 100 (Exceptional) |
| Klaipeda | Lithuania | Record daily precipitation | 62.2 mm (2.4 in) | 80 of 100 (Exceptional) |
| Kalispell Glacier AP | United States | Record daily precipitation | 29.7 mm (1.2 in) | 80 of 100 (Exceptional) |
| Koloa 936 | United States | Record daily precipitation | 48.3 mm (1.9 in) | 80 of 100 (Exceptional) |
| Ellensburg | United States | Record daily precipitation | 29.0 mm (1.1 in) | 80 of 100 (Exceptional) |
| Fraserburg | South Africa | Record daily precipitation | 35.8 mm (1.4 in) | 80 of 100 (Exceptional) |
| Paw Paw 2S | United States | Record daily precipitation | 112.8 mm (4.4 in) | 80 of 100 (Exceptional) |
| Jamestown State Hosp | United States | Record daily precipitation | 92.7 mm (3.6 in) | 80 of 100 (Exceptional) |
| Puhi 1013 | United States | Record daily precipitation | 119.9 mm (4.7 in) | 79 of 100 (Major) |
| Orleans 2 W | United States | Record daily precipitation | 83.6 mm (3.3 in) | 79 of 100 (Major) |
| Sasebo Reg Met HQ | Japan | Record daily precipitation | 354.5 mm (14.0 in) | 78 of 100 (Major) |
| Flandreau | United States | Record daily precipitation | 99.1 mm (3.9 in) | 78 of 100 (Major) |
| Rio Verde S.L.P. | Mexico | Record daily precipitation | 241.6 mm (9.5 in) | 78 of 100 (Major) |
| Rezekne | Latvia | Record daily precipitation | 59.5 mm (2.3 in) | 77 of 100 (Major) |
| Leavenworth 3 S | United States | Record daily precipitation | 27.4 mm (1.1 in) | 77 of 100 (Major) |
| Asahikawa | Japan | Record daily precipitation | 253.6 mm (10.0 in) | 76 of 100 (Major) |
| Shawano 2SSW | United States | Record daily precipitation | 70.6 mm (2.8 in) | 76 of 100 (Major) |
| Quincy | United States | Record daily precipitation | 35.1 mm (1.4 in) | 76 of 100 (Major) |
| Barkly East | South Africa | Record daily precipitation | 50.0 mm (2.0 in) | 75 of 100 (Major) |
| Tsuruga | Japan | Record daily precipitation | 303.5 mm (11.9 in) | 74 of 100 (Major) |
| Osaka | Japan | Record daily precipitation | 305.5 mm (12.0 in) | 74 of 100 (Major) |
| Shinjo | Japan | Record daily precipitation | 216.0 mm (8.5 in) | 74 of 100 (Major) |
| Walterboro 1 SW | United States | Record daily precipitation | 100.3 mm (3.9 in) | 74 of 100 (Major) |
| Jornada Exp Range | United States | Record daily precipitation | 55.9 mm (2.2 in) | 74 of 100 (Major) |
| Friona | United States | Record daily precipitation | 67.1 mm (2.6 in) | 74 of 100 (Major) |
| Mokpo | Korea, South | Record daily precipitation | 589.9 mm (23.2 in) | 73 of 100 (Major) |
| Sac City | United States | Record daily precipitation | 94.0 mm (3.7 in) | 73 of 100 (Major) |
| Malmesbury | South Africa | Record daily precipitation | 64.2 mm (2.5 in) | 73 of 100 (Major) |
| Clovis 13 N | United States | Record daily precipitation | 127.3 mm (5.0 in) | 73 of 100 (Major) |
| Mundrabilla Station | Australia | Record daily precipitation | 33.4 mm (1.3 in) | 73 of 100 (Major) |
| Klaipeda | Lithuania | Record daily precipitation | 77.0 mm (3.0 in) | 72 of 100 (Major) |
| W Lafayette 6 NW | United States | Record daily precipitation | 63.5 mm (2.5 in) | 72 of 100 (Major) |
| Montpelier | United States | Record daily precipitation | 123.2 mm (4.9 in) | 72 of 100 (Major) |
| Sorve | Latvia | Record daily precipitation | 46.8 mm (1.8 in) | 71 of 100 (Major) |
| Hamada | Japan | Record daily precipitation | 273.0 mm (10.7 in) | 71 of 100 (Major) |
| Zoseni | Latvia | Record daily precipitation | 93.7 mm (3.7 in) | 71 of 100 (Major) |
| Kuqa | China | Record daily precipitation | 50.0 mm (2.0 in) | 71 of 100 (Major) |
| Gunnison 3SW | United States | Record daily precipitation | 25.9 mm (1.0 in) | 71 of 100 (Major) |
| Winslow AP | United States | Record daily precipitation | 45.5 mm (1.8 in) | 71 of 100 (Major) |
| Van Reenen | South Africa | Record daily precipitation | 168.4 mm (6.6 in) | 71 of 100 (Major) |
| Zoseni | Latvia | Record daily precipitation | 41.0 mm (1.6 in) | 71 of 100 (Major) |
| Lisboa Geofisica | Portugal | Record daily precipitation | 71.2 mm (2.8 in) | 71 of 100 (Major) |
| Kaunas | Lithuania | Record daily precipitation | 77.9 mm (3.1 in) | 70 of 100 (Major) |
| Wakamatsu | Japan | Record daily precipitation | 189.3 mm (7.5 in) | 70 of 100 (Major) |
| Split Marjan | Croatia | Record daily precipitation | 86.0 mm (3.4 in) | 70 of 100 (Major) |
| Shizuoka | Japan | Record daily precipitation | 573.0 mm (22.6 in) | 70 of 100 (Major) |
| Riversdale | South Africa | Record daily precipitation | 36.0 mm (1.4 in) | 70 of 100 (Major) |
| Tooma | Estonia | Record daily precipitation | 41.0 mm (1.6 in) | 70 of 100 (Major) |
| Boysen Dam | United States | Record daily precipitation | 41.7 mm (1.6 in) | 70 of 100 (Major) |
| Ukmerge | Lithuania | Record daily precipitation | 57.3 mm (2.3 in) | 70 of 100 (Major) |
| Zoseni | Latvia | Record daily precipitation | 135.4 mm (5.3 in) | 70 of 100 (Major) |
By Timescale
| Timescale | Records |
|---|---|
| all-time | 114 |
| monthly | 1,295 |
| daily | 19,469 |
Top 20 by Significance
| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 September 2026 | Wattening, AU | monthly rain (Provisional) | 55.4 mm (2.2 in) | 25.4 mm (1.0 in) | 113 years | 90 of 100 (Exceptional) |
| 4 September 2026 | Otaru, JP | all-time rain (Provisional) | 255.5 mm (10.1 in) | 94.5 mm (3.7 in) | 64 years | 86 of 100 (Exceptional) |
| 7 September 2026 | Toyama, JP | all-time rain (Provisional) | 377.0 mm (14.8 in) | 173.4 mm (6.8 in) | 62 years | 85 of 100 (Exceptional) |
| 29 September 2026 | Courtenay 1 NW, US | all-time rain (Provisional) | 171.5 mm (6.8 in) | 39.9 mm (1.6 in) | 61 years | 83 of 100 (Exceptional) |
| 15 September 2026 | Takayama, JP | all-time rain (Provisional) | 361.5 mm (14.2 in) | 141.5 mm (5.6 in) | 55 years | 83 of 100 (Exceptional) |
| 8 September 2026 | Koloa Mauka 994, US | monthly rain (Provisional) | 190.5 mm (7.5 in) | 87.4 mm (3.4 in) | 83 years | 83 of 100 (Exceptional) |
| 3 September 2026 | Kobe, JP | all-time rain (Provisional) | 410.0 mm (16.1 in) | 90.6 mm (3.6 in) | 59 years | 82 of 100 (Exceptional) |
| 30 September 2026 | Eagle Nest, US | monthly rain (Provisional) | 55.1 mm (2.2 in) | 19.5 mm (0.8 in) | 95 years | 81 of 100 (Exceptional) |
| 9 September 2026 | Guadalajara, MX | all-time rain (Provisional) | 208.3 mm (8.2 in) | 70.4 mm (2.8 in) | 47 years | 81 of 100 (Exceptional) |
| 29 September 2026 | Jamestown State Hosp, US | daily rain (Provisional) | 92.7 mm (3.6 in) | 66.5 mm (2.6 in) | 100 years | 80 of 100 (Exceptional) |
| 20 September 2026 | Paw Paw 2S, US | daily rain (Provisional) | 112.8 mm (4.4 in) | 78.5 mm (3.1 in) | 101 years | 80 of 100 (Exceptional) |
| 17 September 2026 | Fraserburg, ZA | daily rain (Provisional) | 35.8 mm (1.4 in) | 33.3 mm (1.3 in) | 128 years | 80 of 100 (Exceptional) |
| 13 September 2026 | Ellensburg, US | daily rain (Provisional) | 29.0 mm (1.1 in) | 22.4 mm (0.9 in) | 130 years | 80 of 100 (Exceptional) |
| 8 September 2026 | Koloa 936, US | daily rain (Provisional) | 48.3 mm (1.9 in) | 36.4 mm (1.4 in) | 120 years | 80 of 100 (Exceptional) |
| 7 September 2026 | Kalispell Glacier AP, US | daily rain (Provisional) | 29.7 mm (1.2 in) | 22.8 mm (0.9 in) | 104 years | 80 of 100 (Exceptional) |
| 6 September 2026 | Klaipeda, LT | daily rain (Provisional) | 62.2 mm (2.4 in) | 37.2 mm (1.5 in) | 100 years | 80 of 100 (Exceptional) |
| 1 September 2026 | Zoseni, LV | monthly rain (Provisional) | 98.2 mm (3.9 in) | 42.6 mm (1.7 in) | 75 years | 80 of 100 (Exceptional) |
| 25 September 2026 | Orleans 2 W, US | daily rain (Provisional) | 83.6 mm (3.3 in) | 55.9 mm (2.2 in) | 99 years | 79 of 100 (Major) |
| 10 September 2026 | Puhi 1013, US | monthly rain (Provisional) | 119.9 mm (4.7 in) | 27.7 mm (1.1 in) | 88 years | 79 of 100 (Major) |
| 16 September 2026 | Rio Verde S.L.P., MX | all-time rain (Provisional) | 241.6 mm (9.5 in) | 103.7 mm (4.1 in) | 45 years | 78 of 100 (Major) |
Every Day of the Month
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Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-18).