September 1991 storm reports: hail, wind and tornadoes
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In September 1991, 95 hail, 208 damaging-wind and 26 tornado reports were logged on 26 storm days across 39 states. The largest hail reported was 2.50″ (tennis ball size) in Union County, PA on September 18, 1991. The most hail reports came on September 8, 1991 (19).
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← August 1991 All 1991 storm days October 1991 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of September 1991
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| Sep 9, 1991 | 18 | 41 | 2 | 2.00″ | 8 |
| Sep 12, 1991 | 4 | 29 | 6 | 1.50″ | 7 |
| Sep 18, 1991 | 13 | 20 | 2 | 2.50″ | 8 |
| Sep 24, 1991 | 8 | 25 | 2 | 1.75″ | 4 |
| Sep 8, 1991 | 19 | 6 | 1 | 2.00″ | 5 |
| Sep 10, 1991 | 8 | 5 | 2 | 1.75″ | 5 |
| Sep 13, 1991 | 6 | 9 | 0 | 1.75″ | 4 |
| Sep 7, 1991 | 0 | 12 | 2 | – | 6 |
| Sep 14, 1991 | 2 | 10 | 1 | 1.75″ | 4 |
| Sep 3, 1991 | 4 | 7 | 1 | 1.00″ | 5 |
Largest hail reported in September 1991
| Day | Size | Location |
|---|---|---|
| Sep 18, 1991 | 2.50″ (tennis ball) | Union County, PA |
| Sep 8, 1991 | 2.00″ (hen egg) | Eddy County, NM |
| Sep 8, 1991 | 2.00″ (hen egg) | Eddy County, NM |
| Sep 8, 1991 | 2.00″ (hen egg) | Jewell County, KS |
| Sep 9, 1991 | 2.00″ (hen egg) | Milwaukee County, WI |
| Sep 4, 1991 | 1.75″ (golf ball) | Logan County, CO |
| Sep 8, 1991 | 1.75″ (golf ball) | Jewell County, KS |
| Sep 8, 1991 | 1.75″ (golf ball) | Jewell County, KS |
| Sep 9, 1991 | 1.75″ (golf ball) | Allamakee County, IA |
| Sep 9, 1991 | 1.75″ (golf ball) | Clayton County, IA |
Storm reports by state, September 1991
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Iowa | 4 | 23 | 5 | 1.75″ |
| Texas | 11 | 17 | 3 | 1.75″ |
| Wisconsin | 7 | 17 | 1 | 2.00″ |
| Michigan | 1 | 18 | 0 | 0.75″ |
| West Virginia | 8 | 10 | 0 | 1.75″ |
| Illinois | 2 | 12 | 0 | 1.50″ |
| Pennsylvania | 5 | 7 | 2 | 2.50″ |
| Arizona | 4 | 7 | 1 | 1.00″ |
| South Dakota | 5 | 6 | 1 | 1.00″ |
| Indiana | 2 | 9 | 0 | 0.88″ |
| Kansas | 10 | 1 | 0 | 2.00″ |
| Florida | 0 | 6 | 4 | – |
| Oklahoma | 4 | 6 | 0 | 1.00″ |
| Wyoming | 6 | 1 | 2 | 1.75″ |
| Ohio | 2 | 6 | 0 | 1.75″ |
| Utah | 4 | 2 | 2 | 1.50″ |
| California | 4 | 3 | 0 | 1.50″ |
| Minnesota | 2 | 5 | 0 | 1.75″ |
| Nebraska | 2 | 4 | 1 | 1.25″ |
| Idaho | 1 | 4 | 1 | 0.75″ |
| Louisiana | 1 | 4 | 0 | 1.00″ |
| Maryland | 3 | 2 | 0 | 1.75″ |
| Missouri | 0 | 4 | 1 | – |
| New Mexico | 3 | 2 | 0 | 2.00″ |
| Maine | 0 | 4 | 0 | – |
| North Carolina | 1 | 3 | 0 | 0.75″ |
| North Dakota | 0 | 3 | 1 | – |
| Virginia | 0 | 4 | 0 | – |
| Colorado | 2 | 1 | 0 | 1.75″ |
| Georgia | 0 | 2 | 1 | – |
| New Jersey | 1 | 2 | 0 | 1.00″ |
| New York | 0 | 3 | 0 | – |
| Alabama | 0 | 2 | 0 | – |
| Kentucky | 0 | 2 | 0 | – |
| South Carolina | 0 | 2 | 0 | – |
| Delaware | 0 | 1 | 0 | – |
| Mississippi | 0 | 1 | 0 | – |
| Nevada | 0 | 1 | 0 | – |
| Tennessee | 0 | 1 | 0 | – |
Every storm day in September 1991
Sep 1 Sep 2 Sep 3 Sep 4 Sep 5 Sep 6 Sep 7 Sep 8 Sep 9 Sep 10 Sep 11 Sep 12 Sep 13 Sep 14 Sep 15 Sep 16 Sep 17 Sep 18 Sep 19 Sep 20 Sep 22 Sep 23 Sep 24 Sep 25 Sep 26 Sep 29
A storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Read more about NOAA storm reports.