Weather & Climate in Pryor, MT

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

Pryor experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 24°F in January while summers reach 70°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 11.5 inches (drier than the 38-inch national average). The area receives 30.3 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 26 / among the cleanest air in the country. The city sits at an elevation of 4,176 feet.

Temperature

24°F Jan (-4°C) 70°F Jul (21°C)

Annual Average	45.7°F
	15% below US avg
January Average	24°F (-4°C)
July Average	70°F (21°C)
Sunny Days	311 days/yr

Geography

Elevation	4,176 ft (1,273 m)
Area	39.8 sq mi (103.1 km²)
Population Density	16/sq mi
Coordinates	45.4114°N, 108.5300°W
Timezone	America/Denver
County	Yellowstone County County
Nearest Airport	Billings Logan International (BIL) 27 miles away

Precipitation & Snow

Annual Rainfall 11.5"

70% below US avg

Snowfall 30.3"

Wettest Month (May) 3.15"

Driest Month (Feb) 0.67"

Air Quality

AQI Median	26.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	83.6 / 100
Social Vulnerability	20.3 / 100
Community Resilience	82.3 / 100

Hazard Breakdown

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

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

Earthquake History

31 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.

May 11, 2022	36 km S of Silver Gate, Montana	M4.2	141 km	14 km
Mar 25, 2008	35 km S of Silver Gate, Montana	M4.2	142 km	4 km
Jul 6, 2021	27 km SSE of Melstone, Montana	M3.6	122 km	10 km
Dec 23, 1991	10 km SW of Colstrip, Montana	M3.6	148 km	5 km
Mar 4, 2019	35 km SSW of Silver Gate, Montana	M3.3	146 km	6 km
Aug 16, 1992	47 km S of Silver Gate, Montana	M3.2	148 km	5 km
Jul 21, 2023	Eastern Montana	M3.2	27 km	5 km
Feb 13, 1998	12 km NE of Hyattville, Wyoming	M3.0	144 km	5 km
Aug 8, 2003	36 km S of Silver Gate, Montana	M2.9	141 km	4 km
Nov 6, 1998	36 km S of Silver Gate, Montana	M2.9	140 km	15 km
May 3, 2013	35 km S of Silver Gate, Montana	M2.9	144 km	5 km
Mar 30, 2017	38 km S of Silver Gate, Montana	M2.9	140 km	13 km
Mar 30, 2018	20 km NNE of Sheridan, Wyoming	M2.8	142 km	5 km
Mar 23, 2023	8 km S of Shell, Wyoming	M2.8	122 km	11 km
Jul 22, 2016	21 km W of Cody, Wyoming	M2.8	114 km	7 km
Oct 1, 1995	39 km SSE of Silver Gate, Montana	M2.8	136 km	10 km
Jan 10, 2020	36 km S of Silver Gate, Montana	M2.8	141 km	14 km
Sep 1, 1990	37 km SSE of Silver Gate, Montana	M2.8	135 km	-1 km
Jan 1, 1994	38 km S of Silver Gate, Montana	M2.7	142 km	14 km
Jun 2, 2021	36 km S of Silver Gate, Montana	M2.7	142 km	15 km

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

Tornado History

44 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 3 injuries.

Date	Rating	Distance	Path	Fatalities
Aug 2, 1985	EF3	79 km	0.2 mi	0
Jun 16, 1965	EF3	43 km	20.6 mi	0
Jun 20, 2010	EF2	45 km	0.7 mi	0
Jun 16, 2010	EF2	29 km	1.0 mi	0
Jul 11, 1978	EF2	86 km	0.4 mi	0
Jun 26, 1964	EF2	76 km	1.0 mi	0
Jul 2, 1958	EF2	43 km	0.5 mi	0
May 21, 2016	EF1	98 km	2.0 mi	0
Jun 22, 1996	EF1	82 km	4.0 mi	0
Jul 9, 1991	EF1	81 km	0.1 mi	0
Jun 21, 1991	EF1	85 km	0.2 mi	0
Jun 21, 1991	EF1	43 km	0.2 mi	0
May 18, 1991	EF1	80 km	0.2 mi	0
May 24, 1990	EF1	61 km	0.2 mi	0
May 24, 1990	EF1	38 km	0.2 mi	0
Jul 24, 1981	EF1	66 km	0.1 mi	0
Jun 18, 1978	EF1	68 km	0.1 mi	0
Jun 26, 1976	EF1	73 km	2.0 mi	0
Aug 12, 1958	EF1	38 km	0.5 mi	0
Jul 6, 1955	EF1	55 km	2.0 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: HAWK CREEK (157,778 acres, 1984).

Year	Name	Acres Burned	Distance
1984	HAWK CREEK	157,778	96 km
2008	DUNN MTN. ASSIST	105,494	94 km
2006	PINE RIDGE COMPLEX	103,074	95 km
2006	BUNDY RAILROAD	91,575	93 km
2021	P F	66,375	95 km
2003	HOBBLE	38,365	100 km
2021	ROBERTSON DRAW	31,132	65 km
2012	DAHL	21,448	96 km
1996	SHEPARD MTN	17,379	86 km
1996	ROLLOVER	10,743	98 km
2008	CASCADE	10,017	79 km
1991	UNNAMED	9,027	91 km
2010	STUMP GULCH	8,873	70 km
1996	COLFAX	8,429	62 km
2021	CRATER RIDGE	8,147	80 km
2021	TROUT CREEK	7,804	89 km
2011	HOLE IN THE WALL	6,559	78 km
2006	BIRTHDAY2	6,553	51 km
2017	MICROWAVE	5,958	59 km
2003	LITTLE HORN II	5,889	82 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	24°F (-4°C)	0.8 in	Coldest
February	28°F (-3°C)	0.7 in	Driest
March	35°F (1°C)	1.2 in
April	43°F (6°C)	2.0 in
May	52°F (11°C)	3.2 in	Wettest
June	61°F (16°C)	2.3 in
July	70°F (21°C)	1.1 in	Warmest
August	68°F (20°C)	1.1 in
September	58°F (14°C)	1.7 in
October	47°F (8°C)	1.3 in
November	33°F (1°C)	0.8 in
December	25°F (-4°C)	0.7 in

Pryor has a seasonal temperature swing of 46°F / from 24°F in January to 70°F in July. Total annual precipitation is 16.9 inches, with May being the wettest month (3.2") and February the driest (0.7").

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