Iowa, 1974

Tornado and Hail in Iowa, June 22, 1974

June 22, 1974 · 35 events in 20 counties and zones

24 thunderstorm wind, 10 hail, 1 tornado, 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$250,000
Crop damage
None recorded
Events
35

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

24 thunderstorm wind, 10 hail, 1 tornado. Local standard time, as filed.

Thunderstorm Wind, Franklin

When
June 22, 12:30 AM CST
Where
Franklin County
Coordinates
42.750, -93.200

Thunderstorm Wind, Woodbury

When
June 22, 12:30 AM CST
Where
Woodbury County
Coordinates
42.480, -96.180

Thunderstorm Wind, Plymouth

When
June 22, 12:44 AM CST
Where
Plymouth County
Measured
63 kt (72 mph)
Coordinates
42.580, -95.970

Hail, Webster

When
June 22, 1:00 AM CST
Where
Webster County
Measured
1.75 in hail
Coordinates
42.280, -94.300

Hail, Hamilton

When
June 22, 1:00 AM CST
Where
Hamilton County
Measured
2.75 in hail
Coordinates
42.570, -93.680

Hail, Hamilton

When
June 22, 1:00 AM CST
Where
Hamilton County
Measured
1 in hail
Coordinates
42.470, -93.820

Thunderstorm Wind, Webster

When
June 22, 1:00 AM CST
Where
Webster County
Coordinates
42.280, -94.300

Hail, Hamilton

When
June 22, 1:20 AM CST
Where
Hamilton County
Measured
1.75 in hail
Coordinates
42.270, -93.930

Thunderstorm Wind, Hamilton

When
June 22, 1:20 AM CST
Where
Hamilton County
Coordinates
42.270, -93.930

Tornado, Hamilton

When
June 22, 1:25 AM CST
Where
Hamilton County
Rating
F2
Path width
100 yd
Property damage
$250,000
Coordinates
42.300, -93.650

Thunderstorm Wind, Hardin

When
June 22, 1:35 AM CST
Where
Hardin County
Coordinates
42.320, -93.430

Thunderstorm Wind, Hamilton

When
June 22, 1:40 AM CST
Where
Hamilton County
Coordinates
42.230, -93.600

Thunderstorm Wind, Guthrie

When
June 22, 1:45 AM CST
Where
Guthrie County
Coordinates
41.680, -94.500

Thunderstorm Wind, Story

When
June 22, 2:00 AM CST
Where
Story County
Coordinates
42.020, -93.450

Hail, Hardin

When
June 22, 2:10 AM CST
Where
Hardin County
Measured
0.75 in hail
Coordinates
42.370, -93.100

Thunderstorm Wind, Dallas

When
June 22, 2:10 AM CST
Where
Dallas County
Coordinates
41.700, -94.020

Thunderstorm Wind, Hardin

When
June 22, 2:10 AM CST
Where
Hardin County
Coordinates
42.370, -93.100

Thunderstorm Wind, Story

When
June 22, 2:10 AM CST
Where
Story County
Coordinates
42.170, -93.300

Thunderstorm Wind, Polk

When
June 22, 2:25 AM CST
Where
Polk County
Coordinates
41.730, -93.620

Thunderstorm Wind, Marshall

When
June 22, 2:30 AM CST
Where
Marshall County
Coordinates
42.030, -93.030

Thunderstorm Wind, Grundy

When
June 22, 2:30 AM CST
Where
Grundy County
Coordinates
42.370, -92.770

Hail, Polk

When
June 22, 2:35 AM CST
Where
Polk County
Measured
2 in hail
Coordinates
41.570, -93.530

Thunderstorm Wind, Crawford

When
June 22, 2:45 AM CST
Where
Crawford County
Coordinates
42.020, -95.350

Thunderstorm Wind, Jasper

When
June 22, 3:00 AM CST
Where
Jasper County
Coordinates
41.700, -93.050

Hail, Benton

When
June 22, 3:15 AM CST
Where
Benton County
Measured
0.75 in hail
Coordinates
42.170, -92.030

Thunderstorm Wind, Benton

When
June 22, 3:15 AM CST
Where
Benton County
Coordinates
42.170, -92.030

Hail, Johnson

When
June 22, 3:30 AM CST
Where
Johnson County
Measured
1.75 in hail
Coordinates
41.750, -91.620

Thunderstorm Wind, Johnson

When
June 22, 3:30 AM CST
Where
Johnson County
Coordinates
41.750, -91.620

Hail, Cedar

When
June 22, 4:00 AM CST
Where
Cedar County
Measured
0.75 in hail
Coordinates
41.770, -91.130

Hail, Clinton

When
June 22, 4:35 AM CST
Where
Clinton County
Measured
0.75 in hail
Coordinates
42.000, -90.620

Thunderstorm Wind, Cedar

When
June 22, 4:40 AM CST
Where
Cedar County
Coordinates
41.770, -91.130

Thunderstorm Wind, Washington

When
June 22, 5:00 AM CST
Where
Washington County
Coordinates
41.300, -91.700

Thunderstorm Wind, Muscatine

When
June 22, 5:30 AM CST
Where
Muscatine County
Coordinates
41.420, -91.050

Thunderstorm Wind, Muscatine

When
June 22, 6:00 AM CST
Where
Muscatine County
Coordinates
41.580, -90.780

Thunderstorm Wind, Clinton

When
June 22, 6:30 AM CST
Where
Clinton County
Coordinates
41.820, -90.550

What these are

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.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

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 historyThe tornado archive for Iowa, 1974

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: 10014516, 10014517, 10014518, 10014519, 10014520, 10014521, 10014522, 10014523, 10014524, 10014525, 10014526, 10014527, 10014528, 10014529, 10014530, 10014531, 10014532, 10014533, 10014534, 10014535, 10014536, 10014537, 10014538, 10014539, 10014540, 10014541, 10014542, 10014543, 10014544, 10014545, 10014546, 10014547, 10014548, 10014549, 10014550.