October 1966 storm reports: hail, wind and tornadoes
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In October 1966, 11 hail, 22 damaging-wind and 29 tornado reports were logged on 8 storm days across 16 states. The largest hail reported was 2.75″ (baseball size) in Crawford County, IA on October 14, 1966. The most hail reports came on October 14, 1966 (9). Tornadoes killed 6.
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← September 1966 All 1966 storm days November 1966 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of October 1966
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| Oct 14, 1966 | 9 | 19 | 22 | 2.75″ | 9 |
| Oct 1, 1966 | 0 | 1 | 1 | – | 2 |
| Oct 4, 1966 | 0 | 0 | 2 | – | 1 |
| Oct 9, 1966 | 0 | 1 | 1 | – | 2 |
| Oct 10, 1966 | 0 | 1 | 1 | – | 2 |
| Oct 12, 1966 | 2 | 0 | 0 | 1.00″ | 1 |
| Oct 15, 1966 | 0 | 0 | 1 | – | 1 |
| Oct 20, 1966 | 0 | 0 | 1 | – | 1 |
Largest hail reported in October 1966
| Day | Size | Location |
|---|---|---|
| Oct 14, 1966 | 2.75″ (baseball) | Crawford County, IA |
| Oct 14, 1966 | 2.75″ (baseball) | Freeborn County, MN |
| Oct 14, 1966 | 2.75″ (baseball) | Freeborn County, MN |
| Oct 14, 1966 | 2.50″ (tennis ball) | Polk County, MO |
| Oct 14, 1966 | 2.50″ (tennis ball) | Wapello County, IA |
| Oct 14, 1966 | 1.75″ (golf ball) | Steele County, MN |
| Oct 14, 1966 | 1.75″ (golf ball) | Webster County, IA |
| Oct 14, 1966 | 1.25″ (half dollar) | Hennepin County, MN |
| Oct 12, 1966 | 1.00″ (quarter) | Buchanan County, MO |
| Oct 14, 1966 | 1.00″ (quarter) | Kent County, MI |
Storm reports by state, October 1966
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Iowa | 3 | 8 | 12 | 2.75″ |
| Missouri | 3 | 0 | 9 | 2.50″ |
| Minnesota | 4 | 2 | 1 | 2.75″ |
| Illinois | 0 | 3 | 1 | – |
| South Dakota | 0 | 3 | 0 | – |
| Florida | 0 | 0 | 2 | – |
| Nebraska | 0 | 2 | 0 | – |
| California | 0 | 1 | 0 | – |
| Maine | 0 | 0 | 1 | – |
| Michigan | 1 | 0 | 0 | 1.00″ |
| North Carolina | 0 | 1 | 0 | – |
| Ohio | 0 | 0 | 1 | – |
| Oklahoma | 0 | 1 | 0 | – |
| Oregon | 0 | 0 | 1 | – |
| South Carolina | 0 | 0 | 1 | – |
| Texas | 0 | 1 | 0 | – |
Every storm day in October 1966
Oct 1 Oct 4 Oct 9 Oct 10 Oct 12 Oct 14 Oct 15 Oct 20
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.