Weather & Climate in Uniontown, WA

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

Uniontown experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 33°F in January while summers reach 67°F in July. The area gets 273 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 17.5 inches (drier than the 38-inch national average). 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 2,564 feet.

Temperature

33°F Jan (0°C) 67°F Jul (19°C)

Annual Average	48.6°F
	10% below US avg
January Average	33°F (0°C)
July Average	67°F (19°C)
Sunny Days	273 days/yr

Geography

Elevation	2,564 ft (782 m)
Area	0.4 sq mi (0.9 km²)
Population Density	386/sq mi
Coordinates	46.5391°N, 117.0861°W
Timezone	America/Los_Angeles
County	Garfield County County
Nearest Airport	Pullman/Moscow Regional (PUW) 14 miles away

Precipitation & Snow

Annual Rainfall 17.5"

54% below US avg

Wettest Month (Nov) 2.80"

Driest Month (Jul) 0.91"

Air Quality

AQI Median	28.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	1.6 / 100
Social Vulnerability	18.7 / 100
Community Resilience	27.3 / 100

Hazard Breakdown

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

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

Earthquake History

107 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	113 km	9 km
Jul 14, 1992	6 km S of Walla Walla East, Washington	M4.1	112 km	11 km
Aug 17, 1994	1 km E of Mullan, Idaho	M4.1	144 km	2 km
Nov 11, 2001	3 km NE of Spokane, Washington	M4.0	130 km	4 km
Jun 25, 2001	Washington	M3.9	129 km	10 km
Jun 28, 1998	3 km SE of Genesee, Idaho	M3.8	15 km	10 km
Nov 8, 1997	39 km SE of Pierce, Idaho	M3.8	132 km	5 km
Mar 14, 1997	1 km E of Mullan, Idaho	M3.6	143 km	2 km
May 30, 1996	3 km SSW of Mullan, Idaho	M3.6	139 km	1 km
Jan 23, 2015	3 km N of Cayuse, Oregon	M3.5	146 km	20 km
Jun 17, 2004	11 km SSE of Washtucna, Washington	M3.4	89 km	17 km
Jan 13, 1994	11 km SW of Lind, Washington	M3.4	129 km	0 km
Jun 28, 1997	3 km NNW of Mullan, Idaho	M3.4	144 km	2 km
Jun 25, 2001	2 km SSE of Town and Country, Washington	M3.4	132 km	10 km
Mar 8, 1994	32 km S of Wallace, Idaho	M3.4	114 km	5 km
Nov 12, 2001	3 km NNE of Spokane, Washington	M3.3	130 km	0 km
Dec 15, 1991	6 km SSW of Walla Walla East, Washington	M3.3	113 km	8 km
May 10, 2000	Idaho-Montana border region	M3.3	143 km	2 km
Feb 11, 2025	2 km NNW of Mullan, Idaho	M3.3	143 km	5 km
Feb 10, 2013	29 km ESE of Pierce, Idaho	M3.2	126 km	5 km

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

Tornado History

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

Date	Rating	Distance	Path	Fatalities
Aug 30, 1971	EF2	47 km	0.5 mi	0
Jun 11, 1968	EF2	81 km	9.6 mi	0
Mar 14, 1966	EF2	55 km	1.0 mi	0
May 8, 1962	EF2	27 km	9.1 mi	0
Jan 16, 2000	EF1	74 km	1.0 mi	0
May 19, 1986	EF1	35 km	2.0 mi	0
May 2, 1973	EF1	22 km	0.1 mi	0
Jun 20, 1969	EF1	22 km	1.0 mi	0
Oct 5, 2011	EF0	93 km	0.0 mi	0
Oct 7, 2010	EF0	68 km	0.4 mi	0
Oct 7, 2010	EF0	68 km	1.0 mi	0
Jun 29, 2007	EF0	88 km	0.3 mi	0
May 31, 1997	EF0	16 km	0.1 mi	0
Jun 1, 1991	EF0	14 km	0.1 mi	0
May 1, 1991	EF0	13 km	0.1 mi	0
Sep 14, 1986	EF0	60 km	0.2 mi	0
Aug 9, 1982	EF0	93 km	0.1 mi	0

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

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	70 km
2006	COLUMBIA COMPLEX	118,865	69 km
2021	SHOVEL CREEK	109,829	61 km
2021	LICK CREEK	80,376	44 km
2015	BUTTE CREEK	79,418	72 km
2012	CACHE CREEK	75,521	72 km
2014	BIG COUGAR	65,397	62 km
1988	TEEPEE BUTTE	59,565	77 km
2005	SCHOOL	51,701	50 km
2007	CHIMNEY COMPLEX	50,646	56 km
2015	KAMIAH GULCH	48,459	85 km
2017	POWERLINE	45,449	67 km
2021	GREEN RIDGE	44,604	60 km
1986	JOSEPH/STARVATION	37,064	79 km
2000	EASTSIDE COMPLEX (DEEP CREEK)	31,969	95 km
2021	ELBOW CREEK	23,103	85 km
2015	FISHER	20,757	57 km
2005	TRYON COMPLEX (CHERRY CREEK)	17,794	81 km
1986	JOSEPH CANYON 1	14,398	59 km
2006	JIM CREEK	13,100	71 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	33°F (0°C)	2.6 in
February	34°F (1°C)	2.1 in
March	40°F (4°C)	2.1 in
April	46°F (8°C)	2.0 in
May	53°F (12°C)	2.1 in
June	59°F (15°C)	1.6 in
July	67°F (19°C)	0.9 in	Warmest, Driest
August	66°F (19°C)	1.0 in
September	58°F (14°C)	1.1 in
October	47°F (9°C)	1.7 in
November	37°F (3°C)	2.8 in	Wettest
December	30°F (-1°C)	2.5 in	Coldest

Uniontown has a seasonal temperature swing of 37°F / from 30°F in December to 67°F in July. Total annual precipitation is 22.4 inches, with November being the wettest month (2.8") and July the driest (0.9").

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