August 2009 storm reports: hail, wind and tornadoes
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In August 2009, 1,303 hail, 2,000 damaging-wind and 60 tornado reports were logged on 31 storm days across 45 states. The largest hail reported was 4.25″ (grapefruit size) in Morgan County, CO on August 8, 2009. The most hail reports came on August 19, 2009 (116).
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← July 2009 All 2009 storm days September 2009 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of August 2009
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| Aug 9, 2009 | 82 | 241 | 2 | 3.00″ | 17 |
| Aug 5, 2009 | 100 | 221 | 0 | 3.00″ | 20 |
| Aug 4, 2009 | 41 | 246 | 2 | 1.75″ | 25 |
| Aug 19, 2009 | 116 | 130 | 30 | 3.00″ | 19 |
| Aug 10, 2009 | 67 | 134 | 0 | 2.00″ | 18 |
| Aug 21, 2009 | 30 | 154 | 1 | 1.75″ | 21 |
| Aug 3, 2009 | 88 | 88 | 0 | 2.75″ | 19 |
| Aug 2, 2009 | 86 | 79 | 3 | 2.75″ | 17 |
| Aug 18, 2009 | 58 | 95 | 4 | 3.00″ | 14 |
| Aug 17, 2009 | 107 | 31 | 1 | 4.00″ | 11 |
Largest hail reported in August 2009
| Day | Size | Location |
|---|---|---|
| Aug 8, 2009 | 4.25″ (grapefruit) | Morgan County, CO |
| Aug 8, 2009 | 4.25″ (grapefruit) | Morgan County, CO |
| Aug 8, 2009 | 4.00″ (grapefruit) | Davison County, SD |
| Aug 8, 2009 | 4.00″ (grapefruit) | Bon Homme County, SD |
| Aug 17, 2009 | 4.00″ (grapefruit) | Hansford County, TX |
| Aug 5, 2009 | 3.00″ (teacup) | Washington County, AR |
| Aug 6, 2009 | 3.00″ (teacup) | Logan County, CO |
| Aug 7, 2009 | 3.00″ (teacup) | Haakon County, SD |
| Aug 7, 2009 | 3.00″ (teacup) | Haakon County, SD |
| Aug 9, 2009 | 3.00″ (teacup) | Hardin County, IA |
Storm reports by state, August 2009
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Kansas | 165 | 135 | 2 | 3.00″ |
| Texas | 84 | 144 | 4 | 4.00″ |
| Colorado | 196 | 16 | 5 | 4.25″ |
| Iowa | 68 | 117 | 6 | 3.00″ |
| Nebraska | 116 | 67 | 0 | 2.75″ |
| Oklahoma | 78 | 90 | 1 | 2.75″ |
| North Carolina | 31 | 128 | 0 | 1.25″ |
| New York | 12 | 130 | 3 | 1.75″ |
| Illinois | 18 | 115 | 10 | 1.75″ |
| South Dakota | 83 | 53 | 0 | 4.00″ |
| Pennsylvania | 8 | 109 | 1 | 1.00″ |
| Montana | 66 | 33 | 0 | 2.75″ |
| Ohio | 34 | 60 | 2 | 2.00″ |
| South Carolina | 20 | 62 | 1 | 1.75″ |
| Virginia | 11 | 68 | 0 | 1.00″ |
| Indiana | 16 | 59 | 2 | 2.50″ |
| Missouri | 29 | 43 | 1 | 2.00″ |
| Georgia | 18 | 52 | 0 | 2.50″ |
| Minnesota | 39 | 15 | 8 | 2.75″ |
| Wyoming | 34 | 23 | 1 | 2.50″ |
| Kentucky | 9 | 47 | 1 | 1.75″ |
| Arkansas | 16 | 39 | 0 | 3.00″ |
| Tennessee | 6 | 46 | 0 | 1.00″ |
| Wisconsin | 5 | 37 | 6 | 1.25″ |
| Maryland | 8 | 34 | 0 | 2.75″ |
| New Mexico | 30 | 11 | 1 | 3.00″ |
| Louisiana | 12 | 23 | 0 | 2.00″ |
| Michigan | 7 | 27 | 0 | 1.00″ |
| North Dakota | 23 | 11 | 0 | 2.00″ |
| Florida | 12 | 18 | 2 | 1.00″ |
| Mississippi | 6 | 22 | 0 | 0.88″ |
| New Jersey | 1 | 27 | 0 | 0.75″ |
| Oregon | 15 | 12 | 0 | 1.75″ |
| Connecticut | 4 | 19 | 0 | 1.00″ |
| Maine | 3 | 18 | 1 | 1.75″ |
| Massachusetts | 3 | 16 | 0 | 1.00″ |
| Alabama | 0 | 16 | 0 | – |
| Idaho | 10 | 5 | 0 | 1.75″ |
| Utah | 3 | 10 | 2 | 1.75″ |
| New Hampshire | 2 | 11 | 0 | 0.88″ |
| Arizona | 1 | 10 | 0 | 1.00″ |
| West Virginia | 0 | 9 | 0 | – |
| Delaware | 0 | 8 | 0 | – |
| Vermont | 0 | 4 | 0 | – |
| Nevada | 1 | 1 | 0 | 1.00″ |
Every storm day in August 2009
Aug 1 Aug 2 Aug 3 Aug 4 Aug 5 Aug 6 Aug 7 Aug 8 Aug 9 Aug 10 Aug 11 Aug 12 Aug 13 Aug 14 Aug 15 Aug 16 Aug 17 Aug 18 Aug 19 Aug 20 Aug 21 Aug 22 Aug 23 Aug 24 Aug 25 Aug 26 Aug 27 Aug 28 Aug 29 Aug 30 Aug 31
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.