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Weather & Climate in Clatskanie, OR

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

Clatskanie 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 21 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

Elevation21 ft (6 m)
Area1.2 sq mi (3.1 km²)
Population Density1,691/sq mi
Coordinates46.1046°N, 123.2045°W
TimezoneAmerica/Los_Angeles
CountyWahkiakum County County
Nearest AirportSouthwest Washington Regional (KLS)
15 miles away

Precipitation & Snow

Annual Rainfall 54.7"
44% above US avg
Snowfall 2.3"
Wettest Month (Dec) 11.89"
Driest Month (Jul) 1.22"

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

1,077 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.8.

Feb 28, 2001 7 km SSE of Longbranch, Washington M6.8 122 km 52 km
Jul 3, 1999 8 km N of Satsop, Washington M5.8 110 km 40 km
Mar 25, 1993 4 km E of Scotts Mills, Oregon M5.6 128 km 20 km
Jun 10, 2001 18 km N of Satsop, Washington M5.0 120 km 40 km
Jun 29, 2002 6 km ENE of Government Camp, Oregon M4.5 146 km 5 km
Feb 14, 2011 31 km S of Morton, Washington M4.3 79 km 4 km
Jul 22, 2001 4 km WSW of DuPont, Washington M4.3 116 km 52 km
May 20, 1995 15 km NNE of Ashford, Washington M4.1 130 km 12 km
Aug 16, 2004 16 km ENE of Packwood, Washington M4.0 147 km -1 km
Jun 15, 1994 1 km WNW of Hoodsport, Washington M4.0 145 km 44 km
Jun 6, 2021 6 km NE of Government Camp, Oregon M3.9 145 km 4 km
Jun 25, 2004 17 km W of Packwood, Washington M3.9 116 km -1 km
Oct 1, 2004 37 km NNE of Amboy, Washington M3.9 79 km -1 km
Apr 24, 2003 3 km NW of North Portland, Oregon M3.9 64 km 17 km
Jan 3, 2018 37 km SSE of Morton, Washington M3.9 90 km 10 km
Feb 8, 1995 9 km ESE of Hubbard, Oregon M3.8 114 km 24 km
Aug 3, 2006 2 km WNW of Cherry Grove, Washington M3.8 57 km 14 km
Jun 29, 2002 7 km NE of Government Camp, Oregon M3.8 146 km 5 km
Jun 12, 2021 3 km WSW of Skokomish, Washington M3.8 135 km 44 km
Jun 8, 1993 5 km ESE of Scotts Mills, Oregon M3.7 129 km 19 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

54 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 72 km 8.7 mi 6
Oct 14, 2016 EF2 71 km 0.7 mi 0
Dec 8, 1993 EF2 94 km 6.0 mi 0
Nov 10, 1965 EF2 70 km 1.5 mi 0
Dec 10, 2015 EF1 64 km 0.8 mi 0
Oct 23, 2014 EF1 20 km 1.3 mi 0
Jun 13, 2013 EF1 99 km 0.3 mi 0
Jan 10, 2008 EF1 62 km 10.1 mi 0
May 27, 2004 EF1 83 km 0.2 mi 0
Nov 12, 1991 EF1 89 km 0.2 mi 0
Nov 12, 1991 EF1 87 km 0.2 mi 0
Jun 29, 1989 EF1 48 km 1.6 mi 0
Mar 28, 1985 EF1 25 km 0.2 mi 0
Oct 13, 1984 EF1 41 km 3.0 mi 0
Aug 16, 1978 EF1 44 km 0.2 mi 0
Dec 12, 1975 EF1 88 km 2.0 mi 0
Oct 3, 1967 EF1 56 km 0.5 mi 0
Nov 11, 2024 EF0 79 km 0.3 mi 0
Oct 28, 2024 EF0 17 km 0.2 mi 0
Oct 11, 2023 EF0 47 km 0.5 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 80 km
1894 PUYALLUP RIVER DELTA, TACOMA, WA Meteorological 3.0 m 2 144 km
1949 PUGET SOUND, WA Meteorological 2.4 m — 142 km
1949 PUGET SOUND, WA Eruption + Earthquake — 8 126 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

7 volcanoes within 200 km. Closest: St. Helens (80 km).

Name Type Elevation Last Eruption Distance
St. Helens Stratovolcano 2,549 m (8,363 ft) 2008 80 km
West Crater Volcanic field 1,329 m (4,360 ft) -5750 90 km
Indian Heaven Shield(s) 1,806 m (5,925 ft) -6250 109 km
Adams Stratovolcano 3,742 m (12,277 ft) 950 133 km
Rainier Stratovolcano 4,392 m (14,409 ft) 1450 138 km
Hood Stratovolcano 3,426 m (11,240 ft) 1866 143 km
Jefferson Stratovolcano 3,199 m (10,495 ft) 950 193 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

3 wildfires (100+ acres) recorded within 100 km. Largest: BIG HOLLOW (24,243 acres, 2020).

Year Name Acres Burned Distance
2020 BIG HOLLOW 24,243 89 km
2022 SIOUXON 2,551 86 km
2022 NAKIA CREEK 1,737 83 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 40°F (4°C) 11.4 in
February 42°F (5°C) 8.9 in
March 44°F (7°C) 7.7 in
April 47°F (9°C) 5.2 in
May 53°F (11°C) 3.5 in
June 57°F (14°C) 2.7 in
July 64°F (18°C) 1.2 in Warmest, Driest
August 62°F (17°C) 1.7 in
September 59°F (15°C) 3.2 in
October 51°F (11°C) 6.0 in
November 44°F (6°C) 11.1 in
December 39°F (4°C) 11.9 in Coldest, Wettest

Clatskanie has a seasonal temperature swing of 25°F / from 39°F in December to 64°F in July. Total annual precipitation is 74.4 inches, with December being the wettest month (11.9") and July the driest (1.2").

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