Granite County tornado history

2 tornadoes touched Granite County, Montana between 1950 and 2025 — about 0.0 a year. The strongest was rated F0 (Aug 11, 1988).

2tornadoes since 1950
F0strongest rating
0killed · 0 injured
2 milongest path · 1988
(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F02
(E)F10
(E)F20
(E)F30
(E)F40
(E)F50

By month

JFMAMJJASOND

Peak month: May.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

DateRatingPathWidthInjuredKilled
Aug 11, 1988F02 mi23 yd00
May 4, 1971F00.5 mi30 yd00

Most recent tornadoes

DateRatingPathWidthInjuredKilled
Aug 11, 1988F02 mi23 yd00
May 4, 1971F00.5 mi30 yd00

Nearby counties

Deer Lodge County, MT1Powell County, MT2Ravalli County, MT3Missoula County, MT2Jefferson County, MT1Lewis and Clark County, MT6Beaverhead County, MT14Lake County, MT4

Questions

How many tornadoes has Granite County, Montana had?

2 tornadoes touched Granite County, Montana between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.0 per year.

What was the strongest tornado in Granite County?

The strongest rating recorded was F0 on Aug 11, 1988, with a 2-mile path.

When is tornado season in Granite County?

Most of its tornadoes happened in May (1 of 2). 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).