August 2004 storm reports: hail, wind and tornadoes
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In August 2004, 1,515 hail, 1,471 damaging-wind and 179 tornado reports were logged on 31 storm days across 49 states. The largest hail reported was 5.50″ (softball size) in Hancock County, IA on August 26, 2004. The most hail reports came on August 10, 2004 (176). Tornadoes killed 3.
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← July 2004 All 2004 storm days September 2004 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of August 2004
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| Aug 3, 2004 | 65 | 199 | 4 | 3.00″ | 19 |
| Aug 10, 2004 | 176 | 88 | 4 | 4.25″ | 16 |
| Aug 26, 2004 | 61 | 117 | 16 | 5.50″ | 13 |
| Aug 4, 2004 | 44 | 122 | 9 | 1.50″ | 24 |
| Aug 2, 2004 | 71 | 75 | 2 | 2.75″ | 18 |
| Aug 9, 2004 | 108 | 30 | 7 | 4.50″ | 11 |
| Aug 8, 2004 | 87 | 44 | 13 | 1.75″ | 11 |
| Aug 25, 2004 | 73 | 62 | 5 | 1.75″ | 15 |
| Aug 29, 2004 | 91 | 40 | 7 | 2.75″ | 15 |
| Aug 20, 2004 | 40 | 90 | 3 | 2.75″ | 20 |
Largest hail reported in August 2004
| Day | Size | Location |
|---|---|---|
| Aug 26, 2004 | 5.50″ (softball) | Hancock County, IA |
| Aug 9, 2004 | 4.50″ (softball) | El Paso County, CO |
| Aug 9, 2004 | 4.25″ (grapefruit) | Elbert County, CO |
| Aug 9, 2004 | 4.25″ (grapefruit) | Elbert County, CO |
| Aug 9, 2004 | 4.25″ (grapefruit) | Kearny County, KS |
| Aug 10, 2004 | 4.25″ (grapefruit) | Elbert County, CO |
| Aug 3, 2004 | 3.00″ (teacup) | Columbia County, WI |
| Aug 9, 2004 | 3.00″ (teacup) | Hodgeman County, KS |
| Aug 10, 2004 | 3.00″ (teacup) | Douglas County, CO |
| Aug 10, 2004 | 3.00″ (teacup) | El Paso County, CO |
Storm reports by state, August 2004
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Kansas | 199 | 78 | 10 | 4.25″ |
| South Dakota | 158 | 110 | 8 | 2.75″ |
| Iowa | 103 | 154 | 16 | 5.50″ |
| Colorado | 201 | 18 | 17 | 4.50″ |
| Texas | 114 | 63 | 5 | 2.75″ |
| Minnesota | 76 | 48 | 14 | 2.50″ |
| Pennsylvania | 36 | 89 | 7 | 1.75″ |
| Illinois | 27 | 76 | 6 | 1.75″ |
| Nebraska | 85 | 17 | 2 | 2.75″ |
| Missouri | 43 | 58 | 2 | 3.00″ |
| North Dakota | 76 | 14 | 5 | 2.00″ |
| Michigan | 35 | 57 | 2 | 1.75″ |
| Oklahoma | 34 | 48 | 0 | 2.00″ |
| Florida | 11 | 38 | 28 | 1.75″ |
| Ohio | 30 | 46 | 0 | 1.75″ |
| Montana | 42 | 29 | 2 | 1.75″ |
| Wisconsin | 21 | 46 | 0 | 3.00″ |
| New York | 13 | 50 | 1 | 1.75″ |
| New Mexico | 54 | 7 | 2 | 2.50″ |
| Arkansas | 13 | 35 | 0 | 2.75″ |
| Georgia | 7 | 37 | 1 | 1.00″ |
| Indiana | 9 | 34 | 1 | 1.75″ |
| North Carolina | 8 | 18 | 16 | 1.25″ |
| Arizona | 18 | 19 | 0 | 1.00″ |
| Kentucky | 7 | 30 | 0 | 1.75″ |
| South Carolina | 3 | 25 | 7 | 1.00″ |
| Massachusetts | 10 | 22 | 2 | 2.00″ |
| West Virginia | 12 | 20 | 0 | 1.50″ |
| Virginia | 6 | 8 | 16 | 3.00″ |
| Maryland | 0 | 28 | 0 | – |
| Idaho | 3 | 20 | 2 | 0.88″ |
| Oregon | 20 | 3 | 0 | 1.00″ |
| Louisiana | 3 | 18 | 0 | 1.75″ |
| Connecticut | 5 | 14 | 0 | 1.75″ |
| Mississippi | 6 | 12 | 0 | 1.00″ |
| Tennessee | 4 | 12 | 2 | 1.00″ |
| New Jersey | 6 | 11 | 0 | 1.00″ |
| Vermont | 0 | 15 | 0 | – |
| Alabama | 3 | 8 | 1 | 1.00″ |
| Maine | 2 | 7 | 1 | 0.75″ |
| New Hampshire | 0 | 9 | 1 | – |
| California | 3 | 3 | 2 | 1.75″ |
| Utah | 0 | 6 | 0 | – |
| Nevada | 2 | 3 | 0 | 1.00″ |
| Wyoming | 4 | 1 | 0 | 1.75″ |
| Washington | 1 | 3 | 0 | 1.50″ |
| Delaware | 0 | 3 | 0 | – |
| District of Columbia | 2 | 0 | 0 | 0.75″ |
| Rhode Island | 0 | 1 | 0 | – |
Every storm day in August 2004
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.