Weather & Climate in Sheridan, MT

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Sheridan has a cool climate with an average annual temperature of 43°F (6°C). Winters average 25°F in January while summers reach 65°F in July. The area gets 311 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 13.0 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 17 / among the cleanest air in the country. 87% of days have good air quality. The city sits at an elevation of 5,124 feet.

Temperature

25°F Jan (-4°C) 65°F Jul (18°C)

Annual Average	43.0°F
	20% below US avg
January Average	25°F (-4°C)
July Average	65°F (18°C)
Sunny Days	311 days/yr

Geography

Elevation	5,124 ft (1,562 m)
Area	1.0 sq mi (2.6 km²)
Population Density	780/sq mi
Coordinates	45.4588°N, 112.1946°W
Timezone	America/Denver
County	Silver Bow County County
Nearest Airport	Bozeman Yellowstone International (BZN) 55 miles away

Precipitation & Snow

Annual Rainfall 13.0"

66% below US avg

Wettest Month (Jun) 2.09"

Driest Month (Feb) 0.28"

Air Quality

AQI Median	17.0
Rating	Good
Good Days %	87.4%
Unhealthy Days	2

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	38.0 / 100
Social Vulnerability	17.0 / 100
Community Resilience	62.9 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Relatively Low
Wildfire	Relatively Low
Flood	Very Low
Hail	Very Low
Strong Wind	Very Low
Heat Wave	Very Low
Winter Weather	Relatively High
Lightning	Relatively Moderate
Ice Storm	Very Low
Drought	Very Low
Cold Wave	Relatively Moderate
Landslide	Relatively Moderate
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

939 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.

Jul 26, 2005	16 km N of Dillon, Montana	M5.6	34 km	13 km
Aug 20, 1999	22 km NW of Lima, Montana	M5.1	88 km	16 km
Mar 30, 2014	22 km S of Mammoth, Wyoming	M4.8	141 km	6 km
Apr 9, 2019	9 km NE of Lima, Montana	M4.6	88 km	14 km
Feb 5, 2006	44 km NE of Spencer, Idaho	M4.4	89 km	14 km
Apr 5, 2011	28 km NNE of Spencer, Idaho	M4.4	95 km	12 km
May 8, 2007	8 km NNW of Alder, Montana	M4.4	9 km	14 km
Jun 16, 2017	12 km E of Hebgen Lake Estates, Montana	M4.4	118 km	9 km
Jun 13, 2016	45 km W of Hebgen Lake Estates, Montana	M4.3	88 km	10 km
Oct 28, 1998	18 km S of Whitehall, Montana	M4.3	28 km	5 km
Nov 24, 2000	24 km S of Mammoth, Wyoming	M4.2	142 km	9 km
Aug 16, 2019	4 km NW of Manhattan, Montana	M4.2	80 km	2 km
Jul 14, 2023	3 km S of Lima, Montana	M4.2	100 km	12 km
Oct 7, 2024	11 km E of Dillon, Montana	M4.1	35 km	17 km
Aug 6, 2019	3 km NW of Manhattan, Montana	M4.1	80 km	5 km
Aug 30, 1997	25 km WNW of Hebgen Lake Estates, Montana	M4.1	88 km	4 km
Apr 8, 2000	8 km ENE of Townsend, Montana	M4.1	116 km	5 km
Jun 18, 2006	6 km S of Pony, Montana	M4.1	28 km	12 km
Sep 3, 2016	16 km S of Whitehall, Montana	M4.0	30 km	8 km
Aug 26, 1999	21 km NW of Lima, Montana	M4.0	88 km	12 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

20 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.

Date	Rating	Distance	Path	Fatalities
Jun 14, 1962	EF2	94 km	0.1 mi	0
May 19, 1962	EF2	43 km	2.0 mi	0
Jul 3, 1988	EF1	96 km	0.2 mi	0
Jun 6, 1976	EF1	93 km	3.0 mi	0
May 29, 1965	EF1	57 km	0.1 mi	0
Jun 15, 1960	EF1	92 km	1.3 mi	0
Aug 6, 2023	EF0	89 km	1.6 mi	0
Aug 20, 2018	EF0	98 km	0.8 mi	0
Jul 10, 2016	EF0	44 km	0.0 mi	0
Jun 29, 1999	EF0	49 km	0.2 mi	0
Sep 15, 1997	EF0	87 km	0.1 mi	0
Jul 19, 1997	EF0	58 km	0.1 mi	0
Jul 2, 1997	EF0	82 km	0.1 mi	0
Jul 2, 1997	EF0	82 km	0.1 mi	0
Sep 5, 1995	EF0	90 km	0.1 mi	0
May 17, 1994	EF0	76 km	0.1 mi	0
Jul 6, 1993	EF0	93 km	0.1 mi	0
Jun 29, 1992	EF0	31 km	0.1 mi	0
Jul 14, 1962	EF0	94 km	0.1 mi	0
Aug 2, 1959	EF0	62 km	0.1 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

1 volcano within 200 km. Closest: Yellowstone (166 km).

Name	Type	Elevation	Last Eruption	Distance
Yellowstone	Caldera(s)	2,805 m (9,203 ft)	-1350	166 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: ALDER CREEK (38,189 acres, 2021).

Year	Name	Acres Burned	Distance
2021	ALDER CREEK	38,189	84 km
2021	HAYSTACK	26,118	78 km
2012	BEAR TRAP 2	14,875	51 km
2006	CLARKS CANYON	14,848	62 km
2007	PATTENGAIL CREEK	13,471	83 km
2012	MILLIE	10,497	89 km
2000	BOULDER COMPLEX (HIGH ORE ROAD)	9,625	94 km
2000	BEAVER CREEK	9,568	91 km
2015	EUSTIS	8,469	86 km
1988	SWEETWATER	8,405	46 km
2015	COTTONWOOD GULCH	8,100	85 km
2021	GOOSE	7,817	94 km
2018	MONUMENT	6,973	57 km
2013	EUREKA	6,213	73 km
2001	PURDY CREEK	4,868	79 km
2015	BEAR LAKE	4,695	80 km
2020	STATE CREEK	4,549	70 km
2012	PONY	4,453	31 km
2018	WIGWAM	4,412	42 km
2012	NINETEEN MILE	3,549	46 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	25°F (-4°C)	0.4 in
February	27°F (-3°C)	0.3 in	Driest
March	33°F (0°C)	0.6 in
April	41°F (5°C)	0.9 in
May	49°F (10°C)	2.0 in
June	57°F (14°C)	2.1 in	Wettest
July	65°F (18°C)	1.3 in	Warmest
August	62°F (17°C)	1.3 in
September	53°F (12°C)	1.2 in
October	44°F (6°C)	0.7 in
November	31°F (-1°C)	0.6 in
December	23°F (-5°C)	0.4 in	Coldest

Sheridan has a seasonal temperature swing of 42°F / from 23°F in December to 65°F in July. Total annual precipitation is 11.7 inches, with June being the wettest month (2.1") and February the driest (0.3").

View full profile of Sheridan, MT →