August 1971 storm reports: hail, wind and tornadoes
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In August 1971, 45 hail, 95 damaging-wind and 50 tornado reports were logged on 29 storm days across 35 states. The largest hail reported was 3.00″ (teacup size) in Jackson County, IL on August 21, 1971. The most hail reports came on August 21, 1971 (11).
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← July 1971 All 1971 storm days September 1971 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of August 1971
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| Aug 10, 1971 | 3 | 16 | 4 | 1.75″ | 7 |
| Aug 22, 1971 | 3 | 14 | 2 | 1.75″ | 8 |
| Aug 21, 1971 | 11 | 5 | 2 | 3.00″ | 8 |
| Aug 9, 1971 | 2 | 12 | 3 | 1.50″ | 7 |
| Aug 11, 1971 | 2 | 9 | 3 | 1.75″ | 9 |
| Aug 13, 1971 | 3 | 6 | 4 | 1.00″ | 3 |
| Aug 12, 1971 | 1 | 2 | 7 | 1.25″ | 3 |
| Aug 24, 1971 | 3 | 3 | 3 | 1.75″ | 5 |
| Aug 30, 1971 | 2 | 5 | 2 | 2.00″ | 5 |
| Aug 6, 1971 | 1 | 0 | 4 | 0.75″ | 2 |
Largest hail reported in August 1971
| Day | Size | Location |
|---|---|---|
| Aug 21, 1971 | 3.00″ (teacup) | Jackson County, IL |
| Aug 21, 1971 | 2.75″ (baseball) | Clearwater County, MN |
| Aug 21, 1971 | 2.75″ (baseball) | Jackson County, IL |
| Aug 30, 1971 | 2.00″ (hen egg) | Washington County, UT |
| Aug 2, 1971 | 1.75″ (golf ball) | Gage County, NE |
| Aug 4, 1971 | 1.75″ (golf ball) | Sheridan County, KS |
| Aug 5, 1971 | 1.75″ (golf ball) | Gove County, KS |
| Aug 10, 1971 | 1.75″ (golf ball) | Iowa County, IA |
| Aug 11, 1971 | 1.75″ (golf ball) | Lamar County, TX |
| Aug 14, 1971 | 1.75″ (golf ball) | Peoria County, IL |
Storm reports by state, August 1971
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Texas | 2 | 4 | 20 | 1.75″ |
| Wisconsin | 7 | 12 | 0 | 1.75″ |
| Minnesota | 9 | 4 | 2 | 2.75″ |
| Michigan | 3 | 9 | 2 | 1.00″ |
| Florida | 0 | 5 | 7 | – |
| Illinois | 5 | 4 | 2 | 3.00″ |
| Ohio | 2 | 8 | 1 | 1.75″ |
| Arizona | 1 | 5 | 1 | 1.25″ |
| Kansas | 3 | 2 | 1 | 1.75″ |
| Georgia | 2 | 3 | 0 | 1.00″ |
| Montana | 0 | 5 | 0 | – |
| North Dakota | 0 | 4 | 1 | – |
| Maine | 0 | 2 | 2 | – |
| Nebraska | 4 | 0 | 0 | 1.75″ |
| New Mexico | 1 | 2 | 1 | 1.50″ |
| New York | 0 | 1 | 3 | – |
| Colorado | 1 | 2 | 0 | 0.75″ |
| Iowa | 1 | 2 | 0 | 1.75″ |
| Indiana | 0 | 3 | 0 | – |
| Mississippi | 0 | 1 | 2 | – |
| Oklahoma | 2 | 1 | 0 | 1.75″ |
| South Dakota | 0 | 3 | 0 | – |
| Arkansas | 0 | 2 | 0 | – |
| Massachusetts | 0 | 2 | 0 | – |
| New Jersey | 0 | 1 | 1 | – |
| Nevada | 0 | 1 | 1 | – |
| Pennsylvania | 1 | 1 | 0 | 0.75″ |
| Utah | 1 | 1 | 0 | 2.00″ |
| Virginia | 0 | 1 | 1 | – |
| Connecticut | 0 | 1 | 0 | – |
| Louisiana | 0 | 1 | 0 | – |
| Maryland | 0 | 1 | 0 | – |
| Missouri | 0 | 0 | 1 | – |
| North Carolina | 0 | 1 | 0 | – |
| Washington | 0 | 0 | 1 | – |
Every storm day in August 1971
Aug 1 Aug 2 Aug 3 Aug 4 Aug 5 Aug 6 Aug 8 Aug 9 Aug 10 Aug 11 Aug 12 Aug 13 Aug 14 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.