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Weather & Climate in Westport, OR

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 40°F in January while summers reach 64°F in July. The area gets 237 sunny days per year, above the national average. Annual precipitation totals 54.7 inches (wetter than the 38-inch national average). The area receives 2.3 inches of snow annually. Air quality is rated Good with a median AQI of 32. The city sits at an elevation of 22 feet.

Temperature

40°F Jan (4°C) 64°F Jul (18°C)
Annual Average50.8°F
6% below US avg
January Average40°F (4°C)
July Average64°F (18°C)
Sunny Days237 days/yr

Geography

Elevation22 ft (7 m)
Area0.7 sq mi (1.7 km²)
Population Density394/sq mi
Coordinates46.1304°N, 123.3714°W
TimezoneAmerica/Los_Angeles
CountyWahkiakum County County
Nearest AirportSouthwest Washington Regional (KLS)
23 miles away

Precipitation & Snow

Annual Rainfall 54.7"
44% above US avg
Snowfall 2.3"
Wettest Month (Dec) 14.13"
Driest Month (Jul) 1.42"

Air Quality

AQI Median32.0
RatingGood

Natural Hazard Risk

Overall RiskVery Low
Risk Score19.3 / 100
Social Vulnerability60.8 / 100
Community Resilience40.0 / 100

Hazard Breakdown

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

Earthquake History

1,019 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.8.

Feb 28, 2001 7 km SSE of Longbranch, Washington M6.8 124 km 52 km
Jul 3, 1999 8 km N of Satsop, Washington M5.8 105 km 40 km
Mar 25, 1993 4 km E of Scotts Mills, Oregon M5.6 136 km 20 km
Jun 10, 2001 18 km N of Satsop, Washington M5.0 116 km 40 km
Feb 14, 2011 31 km S of Morton, Washington M4.3 91 km 4 km
Jul 22, 2001 4 km WSW of DuPont, Washington M4.3 119 km 52 km
May 20, 1995 15 km NNE of Ashford, Washington M4.1 138 km 12 km
Jun 15, 1994 1 km WNW of Hoodsport, Washington M4.0 143 km 44 km
Jun 25, 2004 17 km W of Packwood, Washington M3.9 126 km -1 km
Apr 24, 2003 3 km NW of North Portland, Oregon M3.9 74 km 17 km
Oct 1, 2004 37 km NNE of Amboy, Washington M3.9 91 km -1 km
Jan 3, 2018 37 km SSE of Morton, Washington M3.9 102 km 10 km
Feb 8, 1995 9 km ESE of Hubbard, Oregon M3.8 122 km 24 km
Aug 3, 2006 2 km WNW of Cherry Grove, Washington M3.8 70 km 14 km
Jun 12, 2021 3 km WSW of Skokomish, Washington M3.8 133 km 44 km
Jul 13, 1995 13 km ENE of Ashford, Washington M3.7 138 km 7 km
Oct 1, 2004 36 km NNE of Amboy, Washington M3.7 91 km -2 km
Aug 23, 2013 24 km SSE of Mossyrock, Washington M3.7 79 km 14 km
Jun 8, 1993 5 km ESE of Scotts Mills, Oregon M3.7 136 km 19 km
Jul 31, 2016 12 km NNE of Aberdeen Gardens, Washington M3.7 118 km 35 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

50 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 6 fatalities, 303 injuries.

Date Rating Distance Path Fatalities
Apr 5, 1972 EF3 82 km 8.7 mi 6
Oct 14, 2016 EF2 63 km 0.7 mi 0
Nov 10, 1965 EF2 73 km 1.5 mi 0
Dec 10, 2015 EF1 76 km 0.8 mi 0
Oct 23, 2014 EF1 33 km 1.3 mi 0
Jan 10, 2008 EF1 73 km 10.1 mi 0
May 27, 2004 EF1 85 km 0.2 mi 0
Nov 12, 1991 EF1 95 km 0.2 mi 0
Jun 29, 1989 EF1 61 km 1.6 mi 0
Mar 28, 1985 EF1 37 km 0.2 mi 0
Oct 13, 1984 EF1 53 km 3.0 mi 0
Aug 16, 1978 EF1 54 km 0.2 mi 0
Dec 12, 1975 EF1 84 km 2.0 mi 0
Oct 3, 1967 EF1 43 km 0.5 mi 0
Nov 11, 2024 EF0 72 km 0.3 mi 0
Oct 28, 2024 EF0 29 km 0.2 mi 0
Oct 11, 2023 EF0 60 km 0.5 mi 0
Sep 27, 2021 EF0 71 km 3.9 mi 0
Mar 19, 2021 EF0 53 km 0.3 mi 0
Nov 10, 2020 EF0 50 km 1.7 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

4 tsunamis recorded within 500 km. Highest wave on record: 250.0 m (820 ft).

Year Location Cause Max Wave Deaths Distance
1980 WASHINGTON Explosion 250.0 m 61 92 km
1894 PUYALLUP RIVER DELTA, TACOMA, WA Meteorological 3.0 m 2 147 km
1949 PUGET SOUND, WA Meteorological 2.4 m — 145 km
1949 PUGET SOUND, WA Eruption + Earthquake — 8 129 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

6 volcanoes within 200 km. Closest: St. Helens (92 km).

Name Type Elevation Last Eruption Distance
St. Helens Stratovolcano 2,549 m (8,363 ft) 2008 92 km
West Crater Volcanic field 1,329 m (4,360 ft) -5750 104 km
Indian Heaven Shield(s) 1,806 m (5,925 ft) -6250 122 km
Adams Stratovolcano 3,742 m (12,277 ft) 950 145 km
Rainier Stratovolcano 4,392 m (14,409 ft) 1450 147 km
Hood Stratovolcano 3,426 m (11,240 ft) 1866 155 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

2 wildfires (100+ acres) recorded within 100 km. Largest: SIOUXON (2,551 acres, 2022).

Year Name Acres Burned Distance
2022 SIOUXON 2,551 99 km
2022 NAKIA CREEK 1,737 95 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 40°F (4°C) 13.5 in
February 41°F (5°C) 10.6 in
March 43°F (6°C) 9.3 in
April 46°F (8°C) 6.1 in
May 51°F (11°C) 4.1 in
June 55°F (13°C) 3.1 in
July 64°F (18°C) 1.4 in Warmest, Driest
August 60°F (16°C) 1.9 in
September 57°F (14°C) 3.7 in
October 50°F (10°C) 7.2 in
November 43°F (6°C) 13.2 in
December 39°F (4°C) 14.1 in Coldest, Wettest

Westport has a seasonal temperature swing of 25°F / from 39°F in December to 64°F in July. Total annual precipitation is 88.2 inches, with December being the wettest month (14.1") and July the driest (1.4").

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