Storms in Iowa in 1977

Events

101

Deaths

0

Injuries

23

Damage

$5.4 million

Episodes

31

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.

February 1977

• Tornado in Iowa, February 23, 19771 injured · $250,000 · F1 · 1 event

March 1977

• Damaging Wind in Iowa, March 11, 19771 event
• Tornado in Iowa, March 28, 1977$25,000 · F1 · 1 event

April 1977

• Damaging Winds in Iowa, April 20, 197770 kt wind · 3 events

May 1977

• Tornadoes and Damaging Winds in Iowa, May 4, 197719 injured · $3.7 million · F4 · 17 events
• Tornado in Iowa, May 5, 19771 event
• Hail and Damaging Winds in Iowa, May 15, 19771.75 in hail · 3 events
• Tornadoes and Hail in Iowa, May 16, 19771.75 in hail · 6 events
• Tornado and Damaging Wind in Iowa, May 18, 1977$3,000 · 2 events
• Damaging Wind in Iowa, May 20, 197755 kt wind · 1 event
• Hail and Damaging Winds in Iowa, May 21, 19771.75 in hail · 4 events
• Hail in Iowa, May 27, 19772.75 in hail · 1 event

June 1977

• Tornado and Hail in Iowa, June 7, 19771.75 in hail · 4 events
• Tornadoes and Hail in Iowa, June 10, 1977$75,000 · 1.75 in hail · 5 events
• Tornadoes and Damaging Wind in Iowa, June 16, 19772 injured · $275,000 · 3 events
• Hail and Damaging Wind in Iowa, June 28, 19772.5 in hail · 2 events

July 1977

• Tornado and Hail in Iowa, July 6, 1977$25,000 · F1 · 5 events
• Tornado in Iowa, July 7, 1977$250 · 1 event
• Tornado in Iowa, July 10, 1977$250 · 1 event
• Damaging Wind in Iowa, July 14, 19771 event
• Tornado and Hail in Iowa, July 16, 1977$250,000 · F2 · 4 events
• Hail and Damaging Wind in Iowa, July 30, 19771.75 in hail · 3 events

August 1977

• Hail in Iowa, August 2, 19771.75 in hail · 1 event
• Hail in Iowa, August 7, 19772.75 in hail · 4 events
• Damaging Wind in Iowa, August 8, 197765 kt wind · 1 event
• Tornadoes and Hail in Iowa, August 15, 1977$525,000 · 1.75 in hail · 13 events
• Tornado in Iowa, August 16, 19771 injured · $250,000 · 1 event
• Hail and Damaging Wind in Iowa, August 20, 19771.75 in hail · 2 events

September 1977

• Damaging Winds in Iowa, September 8, 197752 kt wind · 2 events
• Damaging Winds in Iowa, September 17, 197765 kt wind · 3 events
• Tornadoes and Hail in Iowa, September 23, 1977$25,000 · 1.75 in hail · 4 events

Every year in IowaEvery state in 1977Tornadoes in Iowa in 197719761978

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.