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Weather & Climate in Warden, WA

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

Warden experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 30°F in January while summers reach 73°F in July. The area gets 279 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 7.8 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 1,301 feet.

Temperature

30°F Jan (-1°C) 73°F Jul (23°C)
Annual Average50.9°F
6% below US avg
January Average30°F (-1°C)
July Average73°F (23°C)
Sunny Days279 days/yr

Geography

Elevation1,301 ft (397 m)
Area1.1 sq mi (3.0 km²)
Population Density846/sq mi
Coordinates46.9673°N, 119.0528°W
TimezoneAmerica/Los_Angeles
CountyBenton County County
Nearest AirportGrant County International (MWH)
21 miles away

Precipitation & Snow

Annual Rainfall 7.8"
79% below US avg
Wettest Month (Dec) 1.26"
Driest Month (Jul) 0.24"

Air Quality

AQI Median28.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score87.1 / 100
Social Vulnerability30.3 / 100
Community Resilience58.6 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Relatively Moderate
Wildfire Relatively Moderate
Flood Relatively Moderate
Hail Relatively Low
Strong Wind Relatively Low
Heat Wave Relatively Moderate
Winter Weather Relatively High
Lightning Relatively Moderate
Ice Storm Relatively High
Drought Very Low
Cold Wave Relatively Moderate
Landslide Relatively Low
Volcano Very Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

247 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 M4.3 123 km 9 km
Feb 18, 2015 15 km ENE of Cle Elum, Washington M4.2 132 km 4 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 M4.1 122 km 11 km
Nov 11, 2001 3 km NE of Spokane, Washington M4.0 148 km 4 km
Jun 25, 2001 Washington M3.9 148 km 10 km
Apr 15, 1991 4 km SE of Pateros, Washington M3.9 133 km 11 km
Nov 18, 1997 20 km NW of Bickleton, Washington M3.9 142 km 15 km
Aug 7, 1992 8 km WSW of Irrigon, Oregon M3.9 130 km 0 km
Mar 29, 2010 10 km NE of Cliffdell, Washington M3.8 145 km 1 km
Sep 4, 2011 14 km N of Richland, Washington M3.7 64 km 2 km
Jan 1, 1997 14 km NNE of Selah, Washington M3.7 109 km 18 km
May 18, 2008 11 km SSW of Benton City, Washington M3.7 97 km 20 km
Jul 4, 1997 8 km NNE of Waterville, Washington M3.7 112 km 7 km
Jan 23, 2015 3 km N of Cayuse, Oregon M3.5 145 km 20 km
Oct 26, 1992 12 km N of Naches, Washington M3.5 127 km -1 km
Dec 24, 2000 8 km NNW of Entiat, Washington M3.5 126 km 7 km
Jun 29, 2005 0 km SE of Gleed, Washington M3.5 124 km 9 km
Oct 12, 2017 25 km NW of Bickleton, Washington M3.4 145 km 13 km
Oct 15, 2011 13 km N of Richland, Washington M3.4 64 km 1 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

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

Date Rating Distance Path Fatalities
Apr 5, 1972 EF3 96 km 0.1 mi 0
Apr 5, 1972 EF2 82 km 0.1 mi 0
May 31, 1997 EF1 78 km 12.0 mi 0
Aug 10, 1985 EF1 2 km 1.0 mi 0
Apr 23, 1983 EF1 49 km 3.0 mi 0
Aug 15, 1978 EF1 84 km 0.1 mi 0
Jul 1, 1978 EF1 32 km 2.3 mi 0
May 1, 2024 EF0 77 km 0.4 mi 0
Mar 26, 2024 EF0 98 km 0.0 mi 0
Jul 10, 2023 EF0 90 km 0.9 mi 0
May 26, 2023 EF0 37 km 0.4 mi 0
Mar 31, 2020 EF0 73 km 0.1 mi 0
Jul 22, 2016 EF0 94 km 0.2 mi 0
May 22, 2016 EF0 86 km 0.2 mi 0
Aug 13, 2014 EF0 92 km 0.3 mi 0
May 19, 2010 EF0 26 km 0.2 mi 0
Jun 6, 2009 EF0 91 km 1.3 mi 0
Jun 6, 2009 EF0 91 km 1.7 mi 0
Jun 6, 2009 EF0 92 km 2.4 mi 0
Jun 6, 2009 EF0 91 km 2.4 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 — 108 km
2009 COLUMBIA RIVER VALLEY, WA Meteorological 9.0 m — 121 km
2009 COLUMBIA RIVER VALLEY, WA Meteorological 3.6 m — 123 km
Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: RANGE 12 (167,604 acres, 2016).

Year Name Acres Burned Distance
2016 RANGE 12 167,604 81 km
2000 24 COMMAND 162,300 71 km
2020 WHITNEY 127,930 81 km
1984 HANFORD 122,914 72 km
2013 COLOCKUM TARPS 79,279 85 km
2007 WAUTOMA 77,956 73 km
1996 COLD CREEK 72,859 82 km
2018 BOYLSTON 66,292 81 km
2009 DRY CREEK COMPLEX 49,843 88 km
2019 COLD CREEK 43,756 71 km
2003 UMTANUM RIDGE 34,351 83 km
2017 SILVER DOLLAR 30,789 71 km
2017 SUTHERLAND CANYON 29,492 76 km
2022 VANTAGE HIGHWAY 29,299 79 km
2017 400 27,218 78 km
2012 APACHE PASS 25,101 75 km
2020 TAYLOR POND 22,591 88 km
2018 L RD SW 22,101 55 km
2005 WALKER CANYON 20,764 68 km
2007 OVERLOOK 20,363 42 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 30°F (-1°C) 0.9 in
February 36°F (2°C) 0.8 in
March 44°F (6°C) 0.8 in
April 50°F (10°C) 0.6 in
May 58°F (14°C) 0.7 in
June 64°F (18°C) 0.5 in
July 73°F (23°C) 0.2 in Warmest, Driest
August 70°F (21°C) 0.3 in
September 62°F (16°C) 0.4 in
October 50°F (10°C) 0.6 in
November 39°F (4°C) 1.1 in
December 30°F (-1°C) 1.3 in Coldest, Wettest

Warden has a seasonal temperature swing of 44°F / from 30°F in December to 73°F in July. Total annual precipitation is 8.1 inches, with December being the wettest month (1.3") and July the driest (0.2").

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