Boone County tornado history

58 tornadoes touched Boone County, Iowa between 1950 and 2025 — about 0.8 a year. The strongest was rated F5 (Jun 13, 1976). Tornadoes here killed 1 and injured 101 people.

58tornadoes since 1950

F5strongest rating

1killed · 101 injured

41.1 milongest path · 1959

(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F021

(E)F114

(E)F214

(E)F33

(E)F41

(E)F51

unrated4

By month

JFMAMJJASOND

Peak month: June.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

Date	Rating	Path	Width	Injured	Killed
Jun 13, 1976	F5	21.3 mi	880 yd	9	0
May 10, 1959	F4	41.1 mi	400 yd	1	0
Nov 12, 2005	F3	17.6 mi	150 yd	3	1
Jun 13, 1976	F3	17.9 mi	100 yd	0	0
Jun 13, 1976	F3	0.1 mi	333 yd	0	0
Jun 29, 1998	F2	34.1 mi	100 yd	85	0
Mar 13, 1990	F2	22 mi	50 yd	0	0
Dec 15, 2021	EF2	17.7 mi	125 yd	0	0
Dec 15, 2021	EF2	16.3 mi	125 yd	0	0
Nov 12, 2005	F2	14 mi	100 yd	2	0
Nov 12, 2005	F2	12 mi	100 yd	1	0
Apr 4, 1955	F2	11.6 mi	440 yd	0	0

Most recent tornadoes

Date	Rating	Path	Width
Jul 19, 2025	unrated	4.5 mi	40 yd
May 24, 2024	EF0	10.7 mi	180 yd
Apr 23, 2022	EF1	9.1 mi	80 yd
Apr 23, 2022	unrated	3.9 mi	60 yd
Dec 15, 2021	EF2	17.7 mi	125 yd
Dec 15, 2021	EF2	16.3 mi	125 yd
May 26, 2020	unrated	0.6 mi	20 yd
May 26, 2020	unrated	0.2 mi	20 yd
Jun 20, 2018	EF0	2.8 mi	100 yd
Aug 21, 2017	EF0	3.3 mi	80 yd
Mar 6, 2017	EF0	17.9 mi	85 yd
Jun 7, 2015	EF0	2.8 mi	40 yd

Deadliest: Nov 12, 2005, F3, 1 killed.

Nearby counties

Greene County, IA35 Story County, IA66 Dallas County, IA60 Hamilton County, IA56 Webster County, IA63 Polk County, IA70 Guthrie County, IA33 Hardin County, IA47

Questions

How many tornadoes has Boone County, Iowa had?

58 tornadoes touched Boone County, Iowa between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.8 per year.

What was the strongest tornado in Boone County?

The strongest rating recorded was F5 on Jun 13, 1976, with a 21.3-mile path.

When is tornado season in Boone County?

Most of its tornadoes happened in June (18 of 58). 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.