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Weather & Climate in Westport, WA

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

Westport experiences four distinct seasons with an average annual temperature of 51°F (10°C). Winters average 43°F in January while summers reach 59°F in July / relatively mild seasonal variation. The area gets 226 sunny days per year, above the national average. Annual precipitation totals 75.2 inches (wetter 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 14 feet.

Temperature

43°F Jan (6°C) 59°F Jul (15°C)
Annual Average50.8°F
6% below US avg
January Average43°F (6°C)
July Average59°F (15°C)
Sunny Days226 days/yr

Geography

Elevation14 ft (4 m)
Area1.7 sq mi (4.5 km²)
Population Density588/sq mi
Coordinates46.8918°N, 124.1198°W
TimezoneAmerica/Los_Angeles
CountyGrays Harbor County County
Nearest AirportAstoria Regional (AST)
49 miles away

Precipitation & Snow

Annual Rainfall 75.2"
98% above US avg
Snowfall 0.0"
Wettest Month (Dec) 15.12"
Driest Month (Jul) 1.89"

Air Quality

AQI Median28.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively High
Risk Score97.0 / 100
Social Vulnerability67.2 / 100
Community Resilience62.0 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Relatively High
Wildfire Very Low
Flood Relatively Moderate
Hail Very Low
Strong Wind Very Low
Heat Wave Relatively Low
Winter Weather Relatively Low
Lightning Very Low
Ice Storm Relatively High
Drought Very Low
Cold Wave Very Low
Landslide Relatively Moderate
Coastal Flood Very High
Tsunami Very High
Volcano No Rating
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

267 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.8.

Feb 28, 2001 7 km SSE of Longbranch, Washington M6.8 109 km 52 km
Jul 3, 1999 8 km N of Satsop, Washington M5.8 54 km 40 km
Jun 10, 2001 18 km N of Satsop, Washington M5.0 56 km 40 km
Jan 29, 1995 3 km WSW of Des Moines, Washington M5.0 144 km 15 km
Jun 23, 1997 2 km NE of Enetai, Washington M4.9 141 km 13 km
Apr 25, 2003 26 km W of Brinnon, Washington M4.8 109 km 51 km
Jul 22, 2001 4 km WSW of DuPont, Washington M4.3 111 km 52 km
Feb 23, 2017 11 km NE of Hoodsport, Washington M4.1 105 km 15 km
Jun 15, 1994 1 km WNW of Hoodsport, Washington M4.0 93 km 44 km
Jun 27, 1997 3 km SW of Bainbridge Island, Washington M3.9 142 km 1 km
Mar 6, 2025 14 km SW of Blyn, Washington M3.9 136 km 42 km
Jul 24, 2011 21 km W of Brinnon, Washington M3.9 115 km 41 km
Jun 12, 2021 3 km WSW of Skokomish, Washington M3.8 84 km 44 km
Sep 8, 2022 7 km WNW of Lofall, Washington M3.7 148 km 23 km
Aug 23, 2013 24 km SSE of Mossyrock, Washington M3.7 147 km 14 km
Nov 26, 1997 15 km WSW of Quilcene, Washington M3.7 128 km 46 km
Jun 16, 2002 2 km N of Belfair, Washington M3.7 117 km 16 km
Jun 16, 2017 2 km NNW of Quilcene, Washington M3.7 140 km 55 km
May 30, 2003 4 km SSW of Gorst, Washington M3.7 124 km 25 km
Jul 31, 2016 12 km NNE of Aberdeen Gardens, Washington M3.7 44 km 35 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

14 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 1 injury.

Date Rating Distance Path Fatalities
Nov 10, 1965 EF2 95 km 1.5 mi 0
Oct 10, 2020 EF1 55 km 0.5 mi 0
Oct 18, 2019 EF1 99 km 0.7 mi 0
May 27, 2004 EF1 91 km 0.2 mi 0
Oct 3, 1967 EF1 86 km 0.5 mi 0
Mar 19, 2021 EF0 64 km 0.3 mi 0
May 27, 2011 EF0 100 km 0.1 mi 0
Dec 23, 1997 EF0 8 km 0.3 mi 0
Aug 26, 1997 EF0 50 km 0.5 mi 0
Sep 15, 1996 EF0 94 km 1.5 mi 0
Apr 6, 1994 EF0 88 km 0.5 mi 0
Feb 13, 1994 EF0 82 km 0.1 mi 0
Jun 13, 1991 EF0 73 km 0.3 mi 0
Dec 1, 1990 EF0 36 km 0.2 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

4 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).

Year Location Cause Max Wave Deaths Distance
1894 PUYALLUP RIVER DELTA, TACOMA, WA Meteorological 3.0 m 2 134 km
1891 WASHINGTON Eruption + Earthquake 2.4 m — 132 km
1949 PUGET SOUND, WA Meteorological 2.4 m — 128 km
1949 PUGET SOUND, WA Eruption + Earthquake — 8 118 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

3 volcanoes within 200 km. Closest: St. Helens (167 km).

Name Type Elevation Last Eruption Distance
St. Helens Stratovolcano 2,549 m (8,363 ft) 2008 167 km
Rainier Stratovolcano 4,392 m (14,409 ft) 1450 179 km
West Crater Volcanic field 1,329 m (4,360 ft) -5750 193 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

3 wildfires (100+ acres) recorded within 100 km. Largest: PARADISE (2,818 acres, 2015).

Year Name Acres Burned Distance
2015 PARADISE 2,818 94 km
1985 BEAVER 1,107 92 km
2006 BEAR GULCH II 1,037 92 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 43°F (6°C) 14.0 in
February 44°F (7°C) 11.9 in
March 46°F (8°C) 10.5 in
April 48°F (9°C) 6.9 in
May 53°F (11°C) 4.4 in
June 56°F (14°C) 3.0 in
July 59°F (15°C) 1.9 in Driest
August 60°F (16°C) 2.1 in Warmest
September 58°F (15°C) 4.1 in
October 52°F (11°C) 8.3 in
November 47°F (8°C) 14.0 in
December 43°F (6°C) 15.1 in Coldest, Wettest

Westport has a seasonal temperature swing of 18°F / from 43°F in December to 60°F in August. Total annual precipitation is 96.1 inches, with December being the wettest month (15.1") and July the driest (1.9").

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