May 1977 storm reports: hail, wind and tornadoes
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In May 1977, 344 hail, 278 damaging-wind and 228 tornado reports were logged on 31 storm days across 36 states. The largest hail reported was 4.50″ (softball size) in Dickens County, TX on May 18, 1977. The most hail reports came on May 16, 1977 (34). Tornadoes killed 4.
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← April 1977 All 1977 storm days June 1977 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of May 1977
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| May 4, 1977 | 20 | 33 | 30 | 3.00″ | 12 |
| May 16, 1977 | 34 | 20 | 13 | 3.00″ | 12 |
| May 30, 1977 | 24 | 34 | 3 | 3.00″ | 15 |
| May 20, 1977 | 12 | 19 | 28 | 2.75″ | 10 |
| May 18, 1977 | 19 | 14 | 25 | 4.50″ | 9 |
| May 5, 1977 | 26 | 11 | 14 | 3.50″ | 14 |
| May 8, 1977 | 23 | 13 | 5 | 2.25″ | 9 |
| May 15, 1977 | 11 | 19 | 4 | 2.75″ | 8 |
| May 21, 1977 | 7 | 11 | 14 | 1.75″ | 11 |
| May 19, 1977 | 14 | 6 | 11 | 1.75″ | 9 |
Largest hail reported in May 1977
| Day | Size | Location |
|---|---|---|
| May 18, 1977 | 4.50″ (softball) | Dickens County, TX |
| May 5, 1977 | 3.50″ (teacup) | Morgan County, IL |
| May 4, 1977 | 3.00″ (teacup) | Platte County, NE |
| May 16, 1977 | 3.00″ (teacup) | Harlan County, NE |
| May 29, 1977 | 3.00″ (teacup) | Harvey County, KS |
| May 30, 1977 | 3.00″ (teacup) | Brown County, NE |
| May 1, 1977 | 2.75″ (baseball) | Caddo County, OK |
| May 1, 1977 | 2.75″ (baseball) | Beckham County, OK |
| May 3, 1977 | 2.75″ (baseball) | Collingsworth County, TX |
| May 4, 1977 | 2.75″ (baseball) | Jackson County, MO |
Storm reports by state, May 1977
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Texas | 84 | 19 | 50 | 4.50″ |
| Oklahoma | 39 | 35 | 31 | 2.75″ |
| Nebraska | 22 | 23 | 35 | 3.00″ |
| Kansas | 52 | 14 | 9 | 3.00″ |
| Missouri | 19 | 26 | 9 | 2.75″ |
| Minnesota | 16 | 28 | 8 | 1.75″ |
| Illinois | 13 | 27 | 1 | 3.50″ |
| South Dakota | 11 | 11 | 14 | 2.75″ |
| Iowa | 5 | 12 | 17 | 2.75″ |
| North Dakota | 4 | 14 | 10 | 1.75″ |
| Colorado | 13 | 5 | 6 | 2.75″ |
| Mississippi | 7 | 8 | 2 | 2.25″ |
| Florida | 3 | 8 | 3 | 1.75″ |
| Wisconsin | 6 | 6 | 2 | 1.75″ |
| Indiana | 5 | 3 | 5 | 1.75″ |
| Alabama | 9 | 2 | 1 | 1.75″ |
| Arkansas | 3 | 5 | 4 | 1.75″ |
| New Mexico | 5 | 2 | 3 | 1.75″ |
| Michigan | 2 | 4 | 3 | 1.75″ |
| South Carolina | 4 | 4 | 1 | 1.75″ |
| Louisiana | 1 | 1 | 5 | 0.75″ |
| Ohio | 4 | 3 | 0 | 2.00″ |
| Montana | 2 | 1 | 3 | 1.75″ |
| North Carolina | 1 | 2 | 3 | 1.00″ |
| Virginia | 3 | 3 | 0 | 1.75″ |
| Kentucky | 1 | 3 | 0 | 1.25″ |
| Pennsylvania | 3 | 1 | 0 | 1.00″ |
| Wyoming | 1 | 1 | 2 | 0.75″ |
| California | 0 | 2 | 1 | – |
| Georgia | 2 | 1 | 0 | 1.75″ |
| Tennessee | 1 | 2 | 0 | 2.75″ |
| Connecticut | 0 | 1 | 0 | – |
| Idaho | 1 | 0 | 0 | 1.75″ |
| Maryland | 0 | 1 | 0 | – |
| Maine | 1 | 0 | 0 | 0.75″ |
| West Virginia | 1 | 0 | 0 | 1.00″ |
Every storm day in May 1977
May 1 May 2 May 3 May 4 May 5 May 6 May 7 May 8 May 9 May 10 May 11 May 12 May 13 May 14 May 15 May 16 May 17 May 18 May 19 May 20 May 21 May 22 May 23 May 24 May 25 May 26 May 27 May 28 May 29 May 30 May 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.