Washington County tornado history

25 tornadoes touched Washington County, Iowa between 1950 and 2025 — about 0.3 a year. The strongest was rated EF4 (Mar 31, 2023).

25tornadoes since 1950
EF4strongest rating
0killed · 52 injured
103.5 milongest path · 1981
(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F04
(E)F111
(E)F27
(E)F32
(E)F41
(E)F50

By month

JFMAMJJASOND

Peak month: May.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

DateRatingPathWidthInjuredKilled
Mar 31, 2023EF419.9 mi700 yd30
Apr 23, 1965F347.4 mi10 yd10
May 15, 1998F347 mi400 yd470
May 8, 1988F271 mi60 yd00
May 8, 1988F236 mi60 yd00
Jun 7, 1984F224 mi200 yd10
May 3, 2012EF26.7 mi440 yd00
May 9, 1970F22 mi100 yd00
Apr 2, 2006F21 mi75 yd00
Nov 9, 1975F20.1 mi10 yd00
May 20, 1987F125 mi27 yd00
May 24, 2024EF122.5 mi150 yd00

Most recent tornadoes

DateRatingPathWidthInjuredKilled
May 24, 2024EF118.3 mi100 yd00
May 24, 2024EF122.5 mi150 yd00
Mar 31, 2023EF419.9 mi700 yd30
May 17, 2017EF13.2 mi25 yd00
May 17, 2017EF16 mi40 yd00
Jun 20, 2015EF11.4 mi75 yd00
May 3, 2012EF26.7 mi440 yd00
Jul 16, 2007EF10.5 mi100 yd00
Jun 6, 2006F0—30 yd00
Apr 2, 2006F21 mi75 yd00
Apr 2, 2006F10.1 mi50 yd00
Jun 12, 2002F00.1 mi10 yd00

Nearby counties

Keokuk County, IA33Johnson County, IA45Louisa County, IA17Henry County, IA20Jefferson County, IA13Iowa County, IA36Muscatine County, IA39Des Moines County, IA24

Questions

How many tornadoes has Washington County, Iowa had?

25 tornadoes touched Washington County, Iowa between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.3 per year.

What was the strongest tornado in Washington County?

The strongest rating recorded was EF4 on Mar 31, 2023, with a 19.9-mile path.

When is tornado season in Washington County?

Most of its tornadoes happened in May (10 of 25). Tornadoes can occur in any month, so keep alerts on year-round.

Right now: live tornado warnings map · alerts for your location. Dates link to that day’s full storm reports where available (2004 onward).