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Weather & Climate in West Clayton, BC

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

West Clayton experiences four distinct seasons with an average annual temperature of 51°F (10°C). Winters average 39°F in January while summers reach 66°F in July. The area gets 227 sunny days per year, above the national average. Annual precipitation totals 50.4 inches (wetter than the 38-inch national average). The area receives 23.7 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 184 feet.

Temperature

39°F Jan (4°C) 66°F Jul (19°C)
Annual Average50.5°F
6% below US avg
January Average39°F (4°C)
July Average66°F (19°C)
Sunny Days227 days/yr

Geography

Elevation184 ft (56 m)
Area123.8 sq mi (320.7 km²)
Population Density106/sq mi
Coordinates49.1291°N, 122.7157°W
TimezoneAmerica/Vancouver

Precipitation & Snow

Annual Rainfall 50.4"
33% above US avg
Snowfall 23.7"
Wettest Month (Nov) 9.41"
Driest Month (Jul) 2.05"

Air Quality

Earthquake History

338 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.

Apr 14, 1990 4 km ENE of Deming, Washington M5.0 51 km 12 km
Feb 21, 2025 28 km W of Squamish, Canada M4.8 87 km 10 km
Jan 30, 2009 6 km ESE of Lofall, Washington M4.7 150 km 62 km
Jul 12, 2019 2 km S of Roosevelt, Washington M4.6 149 km 29 km
Mar 3, 2025 2025 Orcas Island, Washington M4.5 58 km 16 km
Jun 24, 1997 19 km SSW of Gibsons, Canada M4.4 67 km 3 km
Apr 2, 1990 2 km ENE of Deming, Washington M4.3 51 km 0 km
Feb 19, 1991 31 km E of Squamish, Canada M4.3 63 km 5 km
Feb 22, 1996 31 km NNE of South Pender Harbour, Canada M4.1 121 km 2 km
Sep 21, 2002 9 km SW of Friday Harbor, Washington M4.1 78 km 23 km
Apr 3, 1990 3 km ENE of Deming, Washington M4.0 51 km 1 km
Apr 14, 1990 2 km ESE of Deming, Washington M4.0 51 km 3 km
Sep 26, 2024 12 km E of Saanichton, Canada M4.0 72 km 52 km
Dec 27, 2012 12 km E of North Saanich, Canada M4.0 66 km 54 km
Jul 1, 2009 4 km SE of Coupeville, Washington M4.0 104 km 58 km
Mar 6, 2025 14 km SW of Blyn, Washington M3.9 138 km 42 km
Mar 17, 2004 3 km SW of Clear Lake, Washington M3.8 83 km 0 km
Sep 8, 2022 7 km WNW of Lofall, Washington M3.7 143 km 23 km
Jun 16, 2017 2 km NNW of Quilcene, Washington M3.7 144 km 55 km
Aug 19, 2025 17 km NNW of Sekiu, Washington M3.7 146 km 38 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tsunami History

3 tsunamis recorded within 500 km. Highest wave on record: 38.0 m (125 ft).

Year Location Cause Max Wave Deaths Distance
2007 CHEHALIS LAKE, CHILLIWACK Meteorological 38.0 m 64 km
1891 WASHINGTON Eruption + Earthquake 2.4 m 138 km
1820 CAMANO ISLAND, WA Meteorological 122 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

7 volcanoes within 200 km. Closest: Baker (77 km).

Name Type Elevation Last Eruption Distance
Baker Stratovolcano(es) 3,285 m (10,778 ft) 1880 77 km
Garibaldi Stratovolcano 2,678 m (8,786 ft) -8060 83 km
Garibaldi Lake Volcanic field 2,316 m (7,598 ft) Unknown 92 km
Cayley Volcanic Field Volcanic field 2,375 m (7,792 ft) Unknown 117 km
Glacier Peak Stratovolcano 3,213 m (10,541 ft) 1700 163 km
Meager Complex 2,680 m (8,793 ft) -410 176 km
Bridge River Cones Volcanic field 2,500 m (8,202 ft) Unknown 192 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

4 wildfires (100+ acres) recorded within 100 km. Largest: COPPER LAKE (3,825 acres, 2022).

Year Name Acres Burned Distance
2022 COPPER LAKE 3,825 96 km
2022 BRUSH CREEK 2 3,186 100 km
2022 SILESIA 2,737 90 km
2022 LITTLE CHILL 2,242 93 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 39°F (4°C) 8.3 in
February 40°F (5°C) 5.7 in
March 44°F (7°C) 5.2 in
April 49°F (10°C) 4.5 in
May 55°F (13°C) 3.7 in
June 60°F (16°C) 3.1 in
July 66°F (19°C) 2.1 in Warmest, Driest
August 65°F (18°C) 2.1 in
September 59°F (15°C) 2.8 in
October 51°F (10°C) 5.8 in
November 43°F (6°C) 9.4 in Wettest
December 37°F (3°C) 7.6 in Coldest

West Clayton has a seasonal temperature swing of 29°F / from 37°F in December to 66°F in July. Total annual precipitation is 60.3 inches, with November being the wettest month (9.4") and July the driest (2.1").

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