National Storms

September 1955 storm reports: hail, wind and tornadoes

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In September 1955, 13 hail, 17 damaging-wind and 15 tornado reports were logged on 14 storm days across 15 states. The largest hail reported was 2.75″ (baseball size) in Cavalier County, ND on September 17, 1955. The most hail reports came on September 20, 1955 (3). Tornadoes killed 2.

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

← August 1955 All 1955 storm days October 1955 →

13hail reports
17wind reports
15tornado reports
2.75″largest hail
14storm days
Sep 1: 0Sep 2: 0Sep 3: 2Sep 4: 0Sep 5: 0Sep 6: 0Sep 7: 0Sep 8: 0Sep 9: 0Sep 10: 1Sep 11: 0Sep 12: 0Sep 13: 0Sep 14: 0Sep 15: 0Sep 16: 1Sep 17: 1Sep 18: 0Sep 19: 2Sep 20: 3Sep 21: 1Sep 22: 2Sep 23: 0Sep 24: 0Sep 25: 0Sep 26: 0Sep 27: 0Sep 28: 0Sep 29: 0Sep 30: 0Sep 1Sep 4Sep 7Sep 10Sep 13Sep 16Sep 19Sep 22Sep 25Sep 28max 3
Hail reports by day, September 1955

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

Biggest storm days of September 1955

DayHailWindTornadoLargest hailStates
Sep 20, 19553352.75″5
Sep 21, 19551320.75″4
Sep 10, 19551211.00″4
Sep 17, 19551122.75″4
Sep 22, 19552111.50″2
Sep 3, 19552101.00″1
Sep 29, 1955030–3
Sep 16, 19551011.50″1
Sep 19, 19552002.50″1
Sep 23, 1955002–2

Largest hail reported in September 1955

DaySizeLocation
Sep 17, 19552.75″ (baseball)Cavalier County, ND
Sep 20, 19552.75″ (baseball)Phillips County, KS
Sep 19, 19552.50″ (tennis ball)Adams County, CO
Sep 20, 19551.75″ (golf ball)Washington County, CO
Sep 16, 19551.50″ (ping pong ball)Stearns County, MN
Sep 20, 19551.50″ (ping pong ball)Denver County, CO
Sep 22, 19551.50″ (ping pong ball)Cass County, MO
Sep 3, 19551.00″ (quarter)Custer County, OK
Sep 10, 19551.00″ (quarter)Wayne County, MI
Sep 3, 19550.75″ (penny)Canadian County, OK

Storm reports by state, September 1955

StateHailWindTornadoLargest hail
Kansas3232.75″
Colorado4002.50″
Nebraska004–
Oklahoma2201.00″
South Dakota031–
Texas022–
Illinois030–
Indiana030–
Minnesota1021.50″
Missouri1021.50″
Florida001–
Iowa010–
Michigan1001.00″
North Dakota1002.75″
Pennsylvania010–

Every storm day in September 1955

Sep 3 Sep 9 Sep 10 Sep 13 Sep 15 Sep 16 Sep 17 Sep 19 Sep 20 Sep 21 Sep 22 Sep 23 Sep 24 Sep 29

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.