Lemhi County tornado history
3 tornadoes touched Lemhi County, Idaho between 1950 and 2025 — about 0.0 a year. The strongest was rated F1 (Jun 1, 1956).
3tornadoes since 1950
F1strongest rating
0killed · 0 injured
0.5 milongest path · 1956
(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only
By rating
(E)F00
(E)F13
(E)F20
(E)F30
(E)F40
(E)F50
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 1, 1956 | F1 | 0.5 mi | 10 yd | 0 | 0 |
| Aug 24, 1984 | F1 | 0.1 mi | 10 yd | 0 | 0 |
| Jun 15, 1987 | F1 | 0.1 mi | 20 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | Path | Width | Injured | Killed |
|---|
| Jun 15, 1987 | F1 | 0.1 mi | 20 yd | 0 | 0 |
| Aug 24, 1984 | F1 | 0.1 mi | 10 yd | 0 | 0 |
| Jun 1, 1956 | F1 | 0.5 mi | 10 yd | 0 | 0 |
Nearby counties
Questions
How many tornadoes has Lemhi County, Idaho had?
3 tornadoes touched Lemhi County, Idaho between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.0 per year.
What was the strongest tornado in Lemhi County?
The strongest rating recorded was F1 on Jun 1, 1956, with a 0.5-mile path.
When is tornado season in Lemhi County?
Most of its tornadoes happened in June (2 of 3). 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).