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Weather & Climate in Washtucna, WA

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

Washtucna experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 33°F in January while summers reach 74°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 10.8 inches (drier than the 38-inch national average). The area receives 13.5 inches of snow annually. 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 1,023 feet.

Temperature

33°F Jan (0°C) 74°F Jul (23°C)
Annual Average51.8°F
4% below US avg
January Average33°F (0°C)
July Average74°F (23°C)
Sunny Days273 days/yr

Geography

Elevation1,023 ft (312 m)
Area0.3 sq mi (0.6 km²)
Population Density329/sq mi
Coordinates46.7539°N, 118.3105°W
TimezoneAmerica/Los_Angeles
CountyFranklin County County
Nearest AirportWalla Walla Regional (ALW)
46 miles away

Precipitation & Snow

Annual Rainfall 10.8"
71% below US avg
Snowfall 13.5"
Wettest Month (Dec) 1.81"
Driest Month (Jul) 0.43"

Air Quality

AQI Median28.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score72.5 / 100
Social Vulnerability31.5 / 100
Community Resilience15.5 / 100

Hazard Breakdown

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

Earthquake History

133 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 85 km 9 km
Jul 14, 1992 6 km S of Walla Walla East, Washington M4.1 85 km 11 km
Nov 11, 2001 3 km NE of Spokane, Washington M4.0 125 km 4 km
Jun 25, 2001 Washington M3.9 124 km 10 km
Aug 7, 1992 8 km WSW of Irrigon, Oregon M3.9 140 km 0 km
Jun 28, 1998 3 km SE of Genesee, Idaho M3.8 111 km 10 km
Sep 4, 2011 14 km N of Richland, Washington M3.7 82 km 2 km
May 18, 2008 11 km SSW of Benton City, Washington M3.7 115 km 20 km
Jan 23, 2015 3 km N of Cayuse, Oregon M3.5 117 km 20 km
Nov 6, 1997 22 km SE of Desert Aire, Washington M3.4 110 km 22 km
Jun 17, 2004 11 km SSE of Washtucna, Washington M3.4 11 km 17 km
Jun 25, 2001 2 km SSE of Town and Country, Washington M3.4 125 km 10 km
Oct 15, 2011 13 km N of Richland, Washington M3.4 82 km 1 km
Dec 22, 1990 9 km NW of Mattawa, Washington M3.4 128 km 3 km
Jan 13, 1994 11 km SW of Lind, Washington M3.4 33 km 0 km
Sep 13, 2012 10 km ESE of Rock Island, Washington M3.4 145 km 9 km
May 27, 1997 15 km W of Othello, Washington M3.3 81 km 2 km
Feb 28, 2004 10 km WSW of Wallula, Washington M3.3 97 km 1 km
Jun 12, 1995 13 km N of Richland, Washington M3.3 83 km 1 km
May 11, 2001 4 km NNW of Moses Lake North, Washington M3.3 95 km 11 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

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

Date Rating Distance Path Fatalities
Aug 30, 1971 EF2 75 km 0.5 mi 0
Mar 14, 1966 EF2 48 km 1.0 mi 0
Jun 26, 1958 EF2 90 km 0.3 mi 0
Jan 16, 2000 EF1 54 km 1.0 mi 0
Aug 10, 1985 EF1 60 km 1.0 mi 0
Oct 17, 1983 EF1 99 km 0.5 mi 0
Apr 23, 1983 EF1 58 km 3.0 mi 0
Jul 1, 1978 EF1 39 km 2.3 mi 0
May 2, 1973 EF1 100 km 0.1 mi 0
Mar 26, 2024 EF0 100 km 0.0 mi 0
Mar 5, 2024 EF0 99 km 0.2 mi 0
Jun 27, 2023 EF0 86 km 0.1 mi 0
May 26, 2023 EF0 97 km 0.4 mi 0
Mar 31, 2020 EF0 88 km 0.1 mi 0
May 22, 2016 EF0 90 km 0.2 mi 0
Oct 5, 2011 EF0 67 km 0.0 mi 0
May 19, 2010 EF0 80 km 0.2 mi 0
May 11, 2003 EF0 63 km 0.1 mi 0
Aug 24, 1987 EF0 76 km 0.2 mi 0
Apr 23, 1983 EF0 60 km 0.5 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 — 119 km
2009 COLUMBIA RIVER VALLEY, WA Meteorological 9.0 m — 119 km
2009 COLUMBIA RIVER VALLEY, WA Meteorological 3.6 m — 128 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 98 km
2006 COLUMBIA COMPLEX 118,865 76 km
2021 LICK CREEK 80,376 91 km
2015 BUTTE CREEK 79,418 99 km
2005 SCHOOL 51,701 74 km
2021 GREEN RIDGE 44,604 84 km
2012 APACHE PASS 25,101 91 km
1996 UNNAMED 21,130 91 km
2005 WALKER CANYON 20,764 37 km
2007 OVERLOOK 20,363 83 km
2010 EUREKA 19,811 38 km
1996 LINCOLN 19,376 96 km
2016 BLACK ROCK ROAD 17,398 79 km
2017 EAST SADDLE 17,318 79 km
2020 KAHLOTUS 16,738 34 km
2010 UNNAMED 16,737 20 km
2015 SADDLE LAKES 14,253 99 km
1993 HIGHWAY 24 11,414 84 km
2018 WAHLUKE SLOPE 11,203 88 km
2010 HUBBARD 10,824 57 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 33°F (0°C) 1.5 in
February 37°F (3°C) 1.2 in
March 44°F (7°C) 1.3 in
April 50°F (10°C) 1.0 in
May 58°F (14°C) 1.0 in
June 66°F (19°C) 0.7 in
July 74°F (23°C) 0.4 in Warmest, Driest
August 72°F (22°C) 0.5 in
September 63°F (17°C) 0.6 in
October 51°F (10°C) 0.9 in
November 40°F (4°C) 1.7 in
December 32°F (0°C) 1.8 in Coldest, Wettest

Washtucna has a seasonal temperature swing of 42°F / from 32°F in December to 74°F in July. Total annual precipitation is 12.6 inches, with December being the wettest month (1.8") and July the driest (0.4").

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