May 1966 storm reports: hail, wind and tornadoes
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In May 1966, 141 hail, 131 damaging-wind and 98 tornado reports were logged on 30 storm days across 31 states. The largest hail reported was 3.50″ (teacup size) in Hamilton County, NE on May 22, 1966. The most hail reports came on May 20, 1966 (35).
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← April 1966 All 1966 storm days June 1966 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of May 1966
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| May 23, 1966 | 14 | 22 | 24 | 2.00″ | 11 |
| May 15, 1966 | 24 | 25 | 5 | 2.75″ | 6 |
| May 20, 1966 | 35 | 6 | 4 | 2.75″ | 5 |
| May 11, 1966 | 10 | 8 | 15 | 2.75″ | 5 |
| May 17, 1966 | 10 | 11 | 7 | 2.50″ | 7 |
| May 16, 1966 | 10 | 8 | 8 | 2.50″ | 7 |
| May 28, 1966 | 4 | 10 | 2 | 2.00″ | 2 |
| May 22, 1966 | 3 | 4 | 7 | 3.50″ | 4 |
| May 14, 1966 | 6 | 4 | 0 | 1.75″ | 6 |
| May 30, 1966 | 8 | 2 | 0 | 3.50″ | 5 |
Largest hail reported in May 1966
| Day | Size | Location |
|---|---|---|
| May 22, 1966 | 3.50″ (teacup) | Hamilton County, NE |
| May 22, 1966 | 3.50″ (teacup) | Saunders County, NE |
| May 30, 1966 | 3.50″ (teacup) | Hill County, MT |
| May 11, 1966 | 2.75″ (baseball) | Wabaunsee County, KS |
| May 11, 1966 | 2.75″ (baseball) | Shawnee County, KS |
| May 15, 1966 | 2.75″ (baseball) | Shawnee County, KS |
| May 15, 1966 | 2.75″ (baseball) | Johnson County, KS |
| May 20, 1966 | 2.75″ (baseball) | Jackson County, KS |
| May 15, 1966 | 2.50″ (tennis ball) | Clay County, MO |
| May 16, 1966 | 2.50″ (tennis ball) | Douglas County, KS |
Storm reports by state, May 1966
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Oklahoma | 37 | 8 | 11 | 2.50″ |
| Kansas | 27 | 14 | 13 | 2.75″ |
| Missouri | 22 | 20 | 12 | 2.50″ |
| Texas | 16 | 15 | 22 | 2.00″ |
| Illinois | 3 | 10 | 1 | 2.00″ |
| Florida | 3 | 8 | 2 | 1.75″ |
| Mississippi | 0 | 11 | 2 | – |
| Nebraska | 5 | 2 | 5 | 3.50″ |
| Iowa | 2 | 3 | 5 | 1.50″ |
| Tennessee | 2 | 6 | 2 | 1.75″ |
| New Mexico | 2 | 2 | 5 | 1.00″ |
| Montana | 6 | 2 | 0 | 3.50″ |
| Arkansas | 5 | 1 | 1 | 2.00″ |
| Pennsylvania | 1 | 6 | 0 | 2.00″ |
| North Carolina | 2 | 4 | 0 | 1.75″ |
| Georgia | 0 | 0 | 5 | – |
| Louisiana | 1 | 2 | 2 | 1.00″ |
| North Dakota | 0 | 2 | 3 | – |
| South Carolina | 2 | 3 | 0 | 1.75″ |
| Wisconsin | 0 | 4 | 1 | – |
| Michigan | 0 | 2 | 2 | – |
| Colorado | 0 | 2 | 1 | – |
| California | 1 | 1 | 0 | 0.75″ |
| Idaho | 2 | 0 | 0 | 0.75″ |
| South Dakota | 0 | 0 | 2 | – |
| Kentucky | 0 | 1 | 0 | – |
| Maine | 1 | 0 | 0 | 1.50″ |
| Minnesota | 0 | 1 | 0 | – |
| Nevada | 0 | 1 | 0 | – |
| Utah | 0 | 0 | 1 | – |
| Virginia | 1 | 0 | 0 | 1.75″ |
Every storm day in May 1966
May 1 May 2 May 3 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.