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Weather & Climate in Spokane Valley, WA

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

Spokane Valley experiences four distinct seasons with an average annual temperature of 49°F (10°C). Winters average 30°F in January while summers reach 74°F in July. The area gets 268 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 16.9 inches (drier than the 38-inch national average). The area receives 26.9 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 2,051 feet.

Temperature

30°F Jan (-1°C) 74°F Jul (23°C)
Annual Average49.4°F
9% below US avg
January Average30°F (-1°C)
July Average74°F (23°C)
Sunny Days268 days/yr

Geography

Elevation2,051 ft (625 m)
Area14.7 sq mi (38.1 km²)
Population Density2,796/sq mi
Coordinates47.6634°N, 117.2328°W
TimezoneAmerica/Los_Angeles
CountySpokane County County
Nearest AirportSpokane International (GEG)
14 miles away

Precipitation & Snow

Annual Rainfall 16.9"
56% below US avg
Snowfall 26.9"
Wettest Month (Dec) 2.83"
Driest Month (Jul) 0.87"

Air Quality

AQI Median28.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score90.0 / 100
Social Vulnerability21.0 / 100
Community Resilience75.8 / 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

92 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.

Aug 17, 1994 1 km E of Mullan, Idaho M4.1 111 km 2 km
Nov 11, 2001 3 km NE of Spokane, Washington M4.0 13 km 4 km
Jun 25, 2001 Washington M3.9 13 km 10 km
Apr 24, 2015 8 km WSW of Hope, Idaho M3.9 87 km 17 km
Jun 28, 1998 3 km SE of Genesee, Idaho M3.8 128 km 10 km
Apr 24, 2015 12 km SSW of East Hope, Idaho M3.7 83 km 9 km
Mar 14, 1997 1 km E of Mullan, Idaho M3.6 111 km 2 km
May 30, 1996 3 km SSW of Mullan, Idaho M3.6 109 km 1 km
Jan 20, 2000 21 km ENE of Athol, Idaho M3.5 71 km 5 km
Jun 17, 2004 11 km SSE of Washtucna, Washington M3.4 134 km 17 km
Nov 2, 1996 4 km W of Trout Creek, Montana M3.4 120 km 5 km
Jan 13, 1994 11 km SW of Lind, Washington M3.4 140 km 0 km
Jun 25, 2001 2 km SSE of Town and Country, Washington M3.4 14 km 10 km
Mar 8, 1994 32 km S of Wallace, Idaho M3.4 111 km 5 km
Dec 15, 2012 19 km S of Troy, Montana M3.4 123 km 1 km
Jun 28, 1997 3 km NNW of Mullan, Idaho M3.4 108 km 2 km
Feb 11, 2025 2 km NNW of Mullan, Idaho M3.3 109 km 5 km
Nov 12, 2001 3 km NNE of Spokane, Washington M3.3 13 km 0 km
May 10, 2000 Idaho-Montana border region M3.3 111 km 2 km
Sep 22, 2003 12 km NW of Rathdrum, Idaho M3.3 31 km 13 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

32 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 5 injuries.

Date Rating Distance Path Fatalities
Apr 5, 1972 EF3 97 km 0.1 mi 0
May 31, 1997 EF2 54 km 5.0 mi 0
Apr 9, 1991 EF2 63 km 1.0 mi 0
Jul 17, 1978 EF2 58 km 0.1 mi 0
Aug 30, 1971 EF2 83 km 0.5 mi 0
May 6, 1957 EF2 21 km 1.5 mi 0
Jun 15, 1954 EF2 28 km 0.5 mi 0
May 6, 2009 EF1 69 km 3.4 mi 0
May 31, 1997 EF1 30 km 5.0 mi 0
Apr 12, 1984 EF1 6 km 1.0 mi 0
Oct 17, 1983 EF1 31 km 0.5 mi 0
Jun 22, 1981 EF1 36 km 0.1 mi 0
Aug 19, 1978 EF1 84 km 1.9 mi 0
Jun 29, 1970 EF1 38 km 0.1 mi 0
Apr 18, 2024 EF0 24 km 0.0 mi 0
Mar 26, 2024 EF0 75 km 0.0 mi 0
May 6, 2022 EF0 22 km 0.6 mi 0
May 6, 2022 EF0 9 km 2.1 mi 0
Aug 9, 2016 EF0 29 km 0.2 mi 0
Jul 22, 2016 EF0 25 km 0.2 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

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

Year Location Cause Max Wave Deaths Distance
1952 COLUMBIA RIVER VALLEY, WA Meteorological 19.8 m — 122 km
1949 COLUMBIA RIVER VALLEY, WA Meteorological 19.8 m — 86 km
2024 COLUMBIA RIVER VALLEY, WA Meteorological 14.3 m — 122 km
1944 COLUMBIA RIVER VALLEY, WA Meteorological 9.1 m — 122 km
2009 COLUMBIA RIVER VALLEY, WA Meteorological 9.0 m — 62 km
1953 COLUMBIA RIVER VALLEY, WA Meteorological 4.8 m — 122 km
2009 COLUMBIA RIVER VALLEY, WA Meteorological 3.6 m — 74 km
1953 COLUMBIA RIVER VALLEY, WA Meteorological — — 122 km
1952 COLUMBIA RIVER VALLEY, WA Meteorological — — 122 km
Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: CARPENTER RD. (62,488 acres, 2015).

Year Name Acres Burned Distance
2015 CARPENTER RD. 62,488 77 km
2015 TOWER 24,779 91 km
2008 SWANSON LAKE 18,941 88 km
2021 FORD CORKSCREW 16,179 47 km
2021 DECEITFUL 12,750 95 km
1991 UNNAMED 12,401 42 km
2020 KEWA FIELD 11,811 99 km
2023 OREGON 10,957 37 km
2003 RATTLESNAKE CANYON 10,655 91 km
2023 GRAY 10,096 36 km
2016 CAYUSE MTN 9,744 64 km
2014 WATERMELON HILL 9,321 55 km
2015 LOWER FLAT 9,034 84 km
2022 WAGNER ROAD 8,155 82 km
2003 HATTEN ROAD 7,247 99 km
2016 SPOKANE COMPLEX 6,839 20 km
1991 UNNAMED 6,024 86 km
2005 WALL LAKE 5,373 90 km
1991 UNNAMED 5,297 52 km
2015 NORTH GRIZZLY 5,286 83 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 30°F (-1°C) 2.5 in
February 33°F (1°C) 1.9 in
March 39°F (4°C) 1.8 in
April 46°F (8°C) 1.5 in
May 54°F (12°C) 1.8 in
June 61°F (16°C) 1.5 in
July 74°F (23°C) 0.9 in Warmest, Driest
August 67°F (19°C) 0.9 in
September 58°F (14°C) 0.9 in
October 47°F (8°C) 1.3 in
November 36°F (2°C) 2.7 in
December 29°F (-2°C) 2.8 in Coldest, Wettest

Spokane Valley has a seasonal temperature swing of 45°F / from 29°F in December to 74°F in July. Total annual precipitation is 20.6 inches, with December being the wettest month (2.8") and July the driest (0.9").

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