68,226
Recorded events
5.3%
Share of the whole archive
716
Direct deaths
$34.7B
Property damage
September severe weather accounts for 68,226 recorded events — 5.3% of everything in the U.S. archive — spread across 3,148 counties, with 716 direct deaths since 1950.
By hazard type
What hits the U.S. in September
| Hazard | Events | Deaths |
|---|---|---|
| Thunderstorm Wind | 25,661 | 51 |
| Hail | 17,146 | 1 |
| Flash Flood | 11,360 | 372 |
| Tornado | 3,935 | 98 |
| Flood | 3,912 | 51 |
| Heavy Rain | 3,765 | 6 |
| Lightning | 1,204 | 87 |
| Funnel Cloud | 623 | 0 |
| Wildfire | 202 | 0 |
| Waterspout | 175 | 0 |
By state
States with the most September severe weather
| Rank | State | Events |
|---|---|---|
| #1 | Texas | 5,272 |
| #2 | Kansas | 4,500 |
| #3 | Iowa | 3,112 |
| #4 | Oklahoma | 2,950 |
| #5 | Virginia | 2,889 |
| #6 | Minnesota | 2,597 |
| #7 | Missouri | 2,571 |
| #8 | Florida | 2,373 |
| #9 | North Carolina | 2,341 |
| #10 | Pennsylvania | 2,308 |
| #11 | New York | 2,271 |
| #12 | Nebraska | 2,212 |
| #13 | Wisconsin | 2,160 |
| #14 | Illinois | 1,754 |
| #15 | Arizona | 1,703 |
Significant events
The deadliest September events on record
| Date | Event | County | Deaths |
|---|---|---|---|
| Sep 27, 2024 | Flash Flood | Buncombe County, North Carolina | 15 |
| Sep 27, 2024 | Debris Flow | Buncombe County, North Carolina | 13 |
| Sep 14, 2015 | Flash Flood | Washington County, Utah | 13 |
| Sep 30, 1959 | Tornado F3 | Albemarle County, Virginia | 11 |
| Sep 27, 2024 | Flash Flood | Yancey County, North Carolina | 9 |
| Sep 27, 2024 | Flash Flood | Unicoi County, Tennessee | 9 |
| Sep 20, 2017 | Flash Flood | Toa Baja Municipio, Puerto Rico | 9 |
| Sep 27, 2024 | Flash Flood | Buncombe County, North Carolina | 9 |
| Sep 16, 1999 | Flash Flood | Edgecombe County, North Carolina | 8 |
| Sep 12, 1961 | Tornado F4 | Galveston County, Texas | 8 |