Iowa, 1974

Hail and Damaging Winds in Iowa, April 13, 1974

April 13, 1974 · 11 events in 10 counties and zones

8 thunderstorm wind, 3 hail, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
11

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Event by event

8 thunderstorm wind, 3 hail. Local standard time, as filed.

Hail, Iowa

When
April 13, 6:15 PM CST
Where
Iowa County
Measured
2 in hail
Coordinates
41.520, -92.080

Thunderstorm Wind, Washington

When
April 13, 6:15 PM CST
Where
Washington County
Coordinates
41.470, -91.830

Hail, Lee

When
April 13, 6:30 PM CST
Where
Lee County
Measured
1.5 in hail
Coordinates
40.470, -91.430

Hail, Johnson

When
April 13, 7:00 PM CST
Where
Johnson County
Measured
1.5 in hail
Coordinates
41.770, -91.370

Thunderstorm Wind, Cedar

When
April 13, 7:20 PM CST
Where
Cedar County
Coordinates
41.770, -91.130

Thunderstorm Wind, Cedar

When
April 13, 7:20 PM CST
Where
Cedar County
Coordinates
41.580, -91.270

Thunderstorm Wind, Clinton

When
April 13, 7:50 PM CST
Where
Clinton County
Coordinates
41.900, -90.600

Thunderstorm Wind, Muscatine

When
April 13, 7:50 PM CST
Where
Muscatine County
Coordinates
41.580, -90.780

Thunderstorm Wind, Mahaska

When
April 13, 9:00 PM CST
Where
Mahaska County
Coordinates
41.300, -92.650

Thunderstorm Wind, Tama

When
April 13, 11:20 PM CST
Where
Tama County
Coordinates
42.200, -92.470

Thunderstorm Wind, Black Hawk

When
April 13, 11:35 PM CST
Where
Black Hawk County
Coordinates
42.500, -92.350

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Iowa in 1974Every state in 1974This day in weather history

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 10014469, 10014470, 10014471, 10014472, 10014473, 10014474, 10014475, 10014476, 10014477, 10014478, 10014479.