National Storms

September 1964 storm reports: hail, wind and tornadoes

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In September 1964, 14 hail, 25 damaging-wind and 25 tornado reports were logged on 17 storm days across 18 states. The largest hail reported was 2.75″ (baseball size) in Cass County, ND on September 25, 1964. The most hail reports came on September 25, 1964 (4).

Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology

← August 1964 All 1964 storm days October 1964 →

14hail reports
25wind reports
25tornado reports
2.75″largest hail
17storm days
Sep 1: 0Sep 2: 1Sep 3: 1Sep 4: 0Sep 5: 0Sep 6: 0Sep 7: 0Sep 8: 0Sep 9: 1Sep 10: 0Sep 11: 0Sep 12: 0Sep 13: 0Sep 14: 2Sep 15: 1Sep 16: 0Sep 17: 0Sep 18: 0Sep 19: 2Sep 20: 0Sep 21: 0Sep 22: 0Sep 23: 0Sep 24: 0Sep 25: 4Sep 26: 2Sep 27: 0Sep 28: 0Sep 29: 0Sep 30: 0Sep 1Sep 4Sep 7Sep 10Sep 13Sep 16Sep 19Sep 22Sep 25Sep 28max 4
Hail reports by day, September 1964

Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.

Biggest storm days of September 1964

DayHailWindTornadoLargest hailStates
Sep 3, 19641751.50″3
Sep 9, 19641151.50″3
Sep 22, 1964033–3
Sep 25, 19644112.75″3
Sep 14, 19642301.00″3
Sep 26, 19642121.50″4
Sep 12, 1964022–3
Sep 15, 19641111.00″2
Sep 19, 19642101.75″1
Sep 2, 19641100.75″2

Largest hail reported in September 1964

DaySizeLocation
Sep 25, 19642.75″ (baseball)Cass County, ND
Sep 25, 19642.75″ (baseball)Cass County, ND
Sep 19, 19641.75″ (golf ball)Gage County, NE
Sep 3, 19641.50″ (ping pong ball)Ida County, IA
Sep 9, 19641.50″ (ping pong ball)Hutchinson County, SD
Sep 26, 19641.50″ (ping pong ball)Chaves County, NM
Sep 14, 19641.00″ (quarter)Maricopa County, AZ
Sep 15, 19641.00″ (quarter)Hartley County, TX
Sep 19, 19641.00″ (quarter)Gage County, NE
Sep 25, 19641.00″ (quarter)Bernalillo County, NM

Storm reports by state, September 1964

StateHailWindTornadoLargest hail
Iowa1241.50″
Minnesota1060.75″
Texas2231.00″
Wisconsin043–
Nebraska2401.75″
Arizona2111.00″
Florida1300.75″
North Dakota2202.75″
Michigan021–
Missouri012–
North Carolina012–
New Mexico2011.50″
Kansas010–
Louisiana010–
Oklahoma001–
South Carolina001–
South Dakota1001.50″
Wyoming010–

Every storm day in September 1964

Sep 1 Sep 2 Sep 3 Sep 5 Sep 7 Sep 9 Sep 10 Sep 12 Sep 13 Sep 14 Sep 15 Sep 16 Sep 19 Sep 21 Sep 22 Sep 25 Sep 26

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.