September 1970 storm reports: hail, wind and tornadoes
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In September 1970, 38 hail, 169 damaging-wind and 54 tornado reports were logged on 26 storm days across 35 states. The largest hail reported was 8.00″ (softball size) in Montgomery County, KS on September 3, 1970. The most hail reports came on September 3, 1970 (18).
Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← August 1970 All 1970 storm days October 1970 →
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Biggest storm days of September 1970
| Day | Hail | Wind | Tornado | Largest hail | States |
|---|---|---|---|---|---|
| Sep 3, 1970 | 18 | 37 | 12 | 8.00″ | 10 |
| Sep 9, 1970 | 0 | 21 | 8 | – | 8 |
| Sep 6, 1970 | 1 | 21 | 5 | 1.75″ | 6 |
| Sep 20, 1970 | 6 | 12 | 5 | 2.00″ | 7 |
| Sep 27, 1970 | 3 | 13 | 2 | 1.75″ | 4 |
| Sep 2, 1970 | 2 | 10 | 1 | 1.75″ | 7 |
| Sep 22, 1970 | 0 | 9 | 1 | – | 7 |
| Sep 5, 1970 | 2 | 4 | 2 | 2.50″ | 5 |
| Sep 4, 1970 | 0 | 6 | 0 | – | 3 |
| Sep 7, 1970 | 0 | 3 | 3 | – | 3 |
Largest hail reported in September 1970
| Day | Size | Location |
|---|---|---|
| Sep 3, 1970 | 8.00″ (softball) | Montgomery County, KS |
| Sep 3, 1970 | 5.00″ (softball) | Montgomery County, KS |
| Sep 24, 1970 | 3.00″ (teacup) | Butler County, NE |
| Sep 3, 1970 | 2.75″ (baseball) | Wilson County, KS |
| Sep 21, 1970 | 2.75″ (baseball) | Shawnee County, KS |
| Sep 5, 1970 | 2.50″ (tennis ball) | Pembina County, ND |
| Sep 3, 1970 | 2.00″ (hen egg) | Cowley County, KS |
| Sep 20, 1970 | 2.00″ (hen egg) | Dawson County, NE |
| Sep 2, 1970 | 1.75″ (golf ball) | Bear Lake County, ID |
| Sep 2, 1970 | 1.75″ (golf ball) | Hockley County, TX |
Storm reports by state, September 1970
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| Missouri | 5 | 24 | 3 | 1.75″ |
| Kansas | 10 | 17 | 2 | 8.00″ |
| Nebraska | 7 | 17 | 1 | 3.00″ |
| Oklahoma | 4 | 8 | 9 | 1.00″ |
| Texas | 1 | 4 | 9 | 1.75″ |
| Arkansas | 0 | 11 | 2 | – |
| New York | 3 | 8 | 1 | 1.75″ |
| Iowa | 0 | 7 | 4 | – |
| North Dakota | 4 | 5 | 1 | 2.50″ |
| Ohio | 0 | 1 | 7 | – |
| South Dakota | 2 | 5 | 1 | 1.75″ |
| Wisconsin | 1 | 4 | 3 | 0.75″ |
| Illinois | 0 | 5 | 2 | – |
| New Jersey | 0 | 7 | 0 | – |
| Kentucky | 0 | 5 | 1 | – |
| Minnesota | 0 | 5 | 1 | – |
| Georgia | 0 | 5 | 0 | – |
| Pennsylvania | 0 | 4 | 1 | – |
| Florida | 0 | 4 | 0 | – |
| Michigan | 0 | 4 | 0 | – |
| Indiana | 0 | 1 | 2 | – |
| Maryland | 0 | 3 | 0 | – |
| North Carolina | 0 | 3 | 0 | – |
| Wyoming | 0 | 3 | 0 | – |
| Idaho | 1 | 1 | 0 | 1.75″ |
| South Carolina | 0 | 2 | 0 | – |
| Tennessee | 0 | 1 | 1 | – |
| Arizona | 0 | 0 | 1 | – |
| Colorado | 0 | 0 | 1 | – |
| Maine | 0 | 1 | 0 | – |
| Mississippi | 0 | 0 | 1 | – |
| New Hampshire | 0 | 1 | 0 | – |
| Virginia | 0 | 1 | 0 | – |
| Vermont | 0 | 1 | 0 | – |
| West Virginia | 0 | 1 | 0 | – |
Every storm day in September 1970
Sep 1 Sep 2 Sep 3 Sep 4 Sep 5 Sep 6 Sep 7 Sep 8 Sep 9 Sep 10 Sep 12 Sep 13 Sep 15 Sep 16 Sep 17 Sep 18 Sep 19 Sep 20 Sep 21 Sep 22 Sep 23 Sep 24 Sep 25 Sep 26 Sep 27 Sep 28
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.