Weather & Climate in Pullman, WA

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

Pullman experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 32°F in January while summers reach 67°F in July. The area gets 276 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 20.4 inches (drier than the 38-inch national average). The area receives 32.7 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 28 / among the cleanest air in the country. The city sits at an elevation of 2,526 feet.

Temperature

32°F Jan (-0°C) 67°F Jul (20°C)

Annual Average	48.2°F
	11% below US avg
January Average	32°F (-0°C)
July Average	67°F (20°C)
Sunny Days	276 days/yr

Geography

Elevation	2,526 ft (770 m)
Area	9.9 sq mi (25.6 km²)
Population Density	2,872/sq mi
Coordinates	46.7331°N, 117.1683°W
Timezone	America/Los_Angeles
County	Whitman County County
Nearest Airport	Pullman/Moscow Regional (PUW) 3 miles away

Precipitation & Snow

Annual Rainfall 20.4"

46% below US avg

Snowfall 32.7"

Wettest Month (Nov) 2.68"

Driest Month (Jul) 0.79"

Air Quality

AQI Median	28.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	39.8 / 100
Social Vulnerability	20.8 / 100
Community Resilience	50.6 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Very Low
Wildfire	Relatively Low
Flood	Relatively Low
Hail	Relatively Low
Strong Wind	Relatively Low
Heat Wave	Relatively Low
Winter Weather	Relatively Low
Lightning	Very Low
Ice Storm	Relatively 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

102 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.3.

Nov 28, 1991	7 km S of Walla Walla East, Washington	M4.3	121 km	9 km
Jul 14, 1992	6 km S of Walla Walla East, Washington	M4.1	120 km	11 km
Aug 17, 1994	1 km E of Mullan, Idaho	M4.1	134 km	2 km
Nov 11, 2001	3 km NE of Spokane, Washington	M4.0	108 km	4 km
Jun 25, 2001	Washington	M3.9	107 km	10 km
Jun 28, 1998	3 km SE of Genesee, Idaho	M3.8	31 km	10 km
Nov 8, 1997	39 km SE of Pierce, Idaho	M3.8	145 km	5 km
Mar 14, 1997	1 km E of Mullan, Idaho	M3.6	133 km	2 km
May 30, 1996	3 km SSW of Mullan, Idaho	M3.6	129 km	1 km
Jun 28, 1997	3 km NNW of Mullan, Idaho	M3.4	133 km	2 km
Mar 8, 1994	32 km S of Wallace, Idaho	M3.4	107 km	5 km
Jan 13, 1994	11 km SW of Lind, Washington	M3.4	118 km	0 km
Jun 17, 2004	11 km SSE of Washtucna, Washington	M3.4	82 km	17 km
Jun 25, 2001	2 km SSE of Town and Country, Washington	M3.4	109 km	10 km
Feb 11, 2025	2 km NNW of Mullan, Idaho	M3.3	133 km	5 km
Nov 12, 2001	3 km NNE of Spokane, Washington	M3.3	108 km	0 km
Dec 15, 1991	6 km SSW of Walla Walla East, Washington	M3.3	121 km	8 km
May 10, 2000	Idaho-Montana border region	M3.3	133 km	2 km
Sep 22, 2003	12 km NW of Rathdrum, Idaho	M3.3	130 km	13 km
Feb 10, 2013	29 km ESE of Pierce, Idaho	M3.2	137 km	5 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
Aug 30, 1971	EF2	25 km	0.5 mi	0
Mar 14, 1966	EF2	55 km	1.0 mi	0
May 8, 1962	EF2	47 km	9.1 mi	0
May 6, 1957	EF2	83 km	1.5 mi	0
Jun 15, 1954	EF2	79 km	0.5 mi	0
Jan 16, 2000	EF1	79 km	1.0 mi	0
May 19, 1986	EF1	32 km	2.0 mi	0
Oct 17, 1983	EF1	88 km	0.5 mi	0
May 2, 1973	EF1	13 km	0.1 mi	0
Jun 20, 1969	EF1	38 km	1.0 mi	0
Oct 5, 2011	EF0	72 km	0.0 mi	0
Oct 7, 2010	EF0	87 km	0.4 mi	0
Oct 7, 2010	EF0	88 km	1.0 mi	0
Jun 29, 2007	EF0	98 km	0.3 mi	0
May 31, 1997	EF0	38 km	0.1 mi	0
Jun 1, 1991	EF0	31 km	0.1 mi	0
May 1, 1991	EF0	28 km	0.1 mi	0
Sep 14, 1986	EF0	40 km	0.2 mi	0
Aug 9, 1982	EF0	85 km	0.1 mi	0
May 22, 1964	EF0	87 km	1.0 mi	0

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

Tsunami History

2 tsunamis recorded within 500 km. Highest wave on record: 9.0 m (30 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
2009	COLUMBIA RIVER VALLEY, WA	Meteorological	9.0 m	—	136 km
2009	COLUMBIA RIVER VALLEY, WA	Meteorological	3.6 m	—	149 km

Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: MALONEY CREEK (131,397 acres, 2000).

Year	Name	Acres Burned	Distance
2000	MALONEY CREEK	131,397	92 km
2006	COLUMBIA COMPLEX	118,865	80 km
2021	SHOVEL CREEK	109,829	83 km
2021	LICK CREEK	80,376	60 km
2015	BUTTE CREEK	79,418	88 km
2012	CACHE CREEK	75,521	94 km
2014	BIG COUGAR	65,397	85 km
1988	TEEPEE BUTTE	59,565	99 km
2005	SCHOOL	51,701	61 km
2007	CHIMNEY COMPLEX	50,646	79 km
2015	KAMIAH GULCH	48,459	100 km
2017	POWERLINE	45,449	90 km
2021	GREEN RIDGE	44,604	74 km
2015	FISHER	20,757	73 km
2010	UNNAMED	16,737	98 km
1986	JOSEPH CANYON 1	14,398	81 km
2006	JIM CREEK	13,100	93 km
2021	BEDROCK	11,998	53 km
2015	LAWYER 2	11,378	99 km
2010	HUBBARD	10,824	62 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	32°F (-0°C)	2.5 in
February	35°F (2°C)	2.0 in
March	40°F (5°C)	2.0 in
April	46°F (8°C)	1.7 in
May	53°F (12°C)	1.7 in
June	59°F (15°C)	1.3 in
July	67°F (20°C)	0.8 in	Warmest, Driest
August	67°F (19°C)	0.9 in
September	58°F (15°C)	0.9 in
October	48°F (9°C)	1.4 in
November	37°F (3°C)	2.7 in	Wettest
December	30°F (-1°C)	2.7 in	Coldest

Pullman has a seasonal temperature swing of 37°F / from 30°F in December to 67°F in July. Total annual precipitation is 20.6 inches, with November being the wettest month (2.7") and July the driest (0.8").

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