Weather & Climate in Lamont, WA

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

Lamont experiences four distinct seasons with an average annual temperature of 49°F (10°C). Winters average 33°F in January while summers reach 69°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 17.1 inches (drier than the 38-inch national average). The area receives 26.6 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 1,960 feet.

Temperature

33°F Jan (0°C) 69°F Jul (21°C)

Annual Average	49.3°F
	9% below US avg
January Average	33°F (0°C)
July Average	69°F (21°C)
Sunny Days	273 days/yr

Geography

Elevation	1,960 ft (597 m)
Area	0.1 sq mi (0.3 km²)
Population Density	517/sq mi
Coordinates	47.2007°N, 117.9049°W
Timezone	America/Los_Angeles
County	Spokane County County
Nearest Airport	Spokane International (GEG) 34 miles away

Precipitation & Snow

Annual Rainfall 17.1"

55% below US avg

Snowfall 26.6"

Wettest Month (Dec) 2.05"

Driest Month (Aug) 0.55"

Air Quality

AQI Median	28.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	90.0 / 100
Social Vulnerability	21.0 / 100
Community Resilience	75.8 / 100

Hazard Breakdown

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

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

Earthquake History

118 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	138 km	9 km
Sep 1, 2015	15 km N of Nespelem Community, Washington	M4.2	149 km	9 km
Jul 14, 1992	6 km S of Walla Walla East, Washington	M4.1	138 km	11 km
Nov 11, 2001	3 km NE of Spokane, Washington	M4.0	66 km	4 km
Jun 25, 2001	Washington	M3.9	66 km	10 km
Jun 28, 1998	3 km SE of Genesee, Idaho	M3.8	107 km	10 km
Sep 4, 2011	14 km N of Richland, Washington	M3.7	136 km	2 km
Jan 20, 2000	21 km ENE of Athol, Idaho	M3.5	142 km	5 km
Oct 15, 2011	13 km N of Richland, Washington	M3.4	136 km	1 km
Jun 17, 2004	11 km SSE of Washtucna, Washington	M3.4	64 km	17 km
Jan 13, 1994	11 km SW of Lind, Washington	M3.4	70 km	0 km
Jun 25, 2001	2 km SSE of Town and Country, Washington	M3.4	67 km	10 km
Mar 8, 1994	32 km S of Wallace, Idaho	M3.4	149 km	5 km
May 27, 1997	15 km W of Othello, Washington	M3.3	118 km	2 km
Jun 19, 1990	11 km W of Othello, Washington	M3.3	115 km	2 km
Sep 22, 2003	12 km NW of Rathdrum, Idaho	M3.3	102 km	13 km
Nov 12, 2001	3 km NNE of Spokane, Washington	M3.3	66 km	0 km
May 1, 2011	13 km N of Richland, Washington	M3.3	136 km	2 km
Dec 15, 1991	6 km SSW of Walla Walla East, Washington	M3.3	138 km	8 km
May 11, 2001	4 km NNW of Moses Lake North, Washington	M3.3	109 km	11 km

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

Tornado History

42 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 1 injury.

Date	Rating	Distance	Path	Fatalities
Apr 5, 1972	EF3	77 km	0.1 mi	0
Aug 30, 1971	EF2	52 km	0.5 mi	0
Mar 14, 1966	EF2	78 km	1.0 mi	0
May 6, 1957	EF2	62 km	1.5 mi	0
Jun 15, 1954	EF2	47 km	0.5 mi	0
May 6, 2009	EF1	66 km	3.4 mi	0
Jan 16, 2000	EF1	98 km	1.0 mi	0
May 31, 1997	EF1	77 km	12.0 mi	0
May 31, 1997	EF1	78 km	5.0 mi	0
Aug 10, 1985	EF1	89 km	1.0 mi	0
Apr 12, 1984	EF1	77 km	1.0 mi	0
Oct 17, 1983	EF1	41 km	0.5 mi	0
Jun 22, 1981	EF1	90 km	0.1 mi	0
Aug 15, 1978	EF1	96 km	0.1 mi	0
Jul 1, 1978	EF1	87 km	2.3 mi	0
May 2, 1973	EF1	86 km	0.1 mi	0
Jun 29, 1970	EF1	68 km	0.1 mi	0
Apr 18, 2024	EF0	57 km	0.0 mi	0
Mar 26, 2024	EF0	56 km	0.0 mi	0
Jul 10, 2023	EF0	89 km	0.9 mi	0

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

Tsunami History

3 tsunamis recorded within 500 km. Highest wave on record: 19.8 m (65 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1949	COLUMBIA RIVER VALLEY, WA	Meteorological	19.8 m	—	77 km
2009	COLUMBIA RIVER VALLEY, WA	Meteorological	9.0 m	—	68 km
2009	COLUMBIA RIVER VALLEY, WA	Meteorological	3.6 m	—	80 km

Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: WHITNEY (127,930 acres, 2020).

Year	Name	Acres Burned	Distance
2020	WHITNEY	127,930	68 km
2015	CARPENTER RD.	62,488	96 km
2019	WILLIAMS FLATS	44,680	97 km
2012	APACHE PASS	25,101	64 km
2005	WALKER CANYON	20,764	96 km
2010	EUREKA	19,811	97 km
1996	LINCOLN	19,376	73 km
2008	SWANSON LAKE	18,941	68 km
2016	BLACK ROCK ROAD	17,398	80 km
2020	KAHLOTUS	16,738	92 km
2010	UNNAMED	16,737	78 km
2021	FORD CORKSCREW	16,179	83 km
1991	UNNAMED	12,401	67 km
2010	HUBBARD	10,824	92 km
2003	RATTLESNAKE CANYON	10,655	84 km
2016	SNAKE RIVER FIRE	10,349	79 km
2023	GRAY	10,096	41 km
2016	CAYUSE MTN	9,744	73 km
2016	KAHLOTUS	9,386	83 km
2016	FLETCHER ROAD	9,380	79 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	33°F (0°C)	1.7 in
February	34°F (1°C)	1.3 in
March	41°F (5°C)	1.3 in
April	47°F (9°C)	1.1 in
May	55°F (13°C)	1.2 in
June	63°F (17°C)	0.9 in
July	69°F (21°C)	0.6 in
August	69°F (21°C)	0.6 in	Warmest, Driest
September	60°F (16°C)	0.6 in
October	48°F (9°C)	0.9 in
November	37°F (3°C)	1.9 in
December	29°F (-2°C)	2.1 in	Coldest, Wettest

Lamont has a seasonal temperature swing of 40°F / from 29°F in December to 69°F in August. Total annual precipitation is 14.1 inches, with December being the wettest month (2.1") and August the driest (0.6").

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