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Weather & Climate in Dallesport, WA

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

Dallesport experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 37°F in January while summers reach 75°F in July. The area gets 311 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 13.7 inches (drier 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 247 feet.

Temperature

37°F Jan (3°C) 75°F Jul (24°C)
Annual Average54.4°F
1% above US avg
January Average37°F (3°C)
July Average75°F (24°C)
Sunny Days311 days/yr

Geography

Elevation247 ft (75 m)
Area2.9 sq mi (7.6 km²)
Population Density213/sq mi
Coordinates45.6316°N, 121.1689°W
TimezoneAmerica/Los_Angeles
CountyHood River County County
Nearest AirportColumbia Gorge Regional/The Dalles Municipal (DLS)
1 miles away

Precipitation & Snow

Annual Rainfall 13.7"
64% below US avg
Wettest Month (Dec) 3.74"
Driest Month (Jul) 0.31"

Air Quality

AQI Median28.0
RatingGood

Natural Hazard Risk

Overall RiskVery Low
Risk Score32.1 / 100
Social Vulnerability10.6 / 100
Community Resilience60.7 / 100

Hazard Breakdown

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

Earthquake History

1,110 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.

Mar 25, 1993 4 km E of Scotts Mills, Oregon M5.6 131 km 20 km
Jun 29, 2002 6 km ENE of Government Camp, Oregon M4.5 52 km 5 km
Feb 14, 2011 31 km S of Morton, Washington M4.3 108 km 4 km
Jun 17, 2010 30 km S of White Swan, Washington M4.2 63 km 3 km
Jul 14, 2008 11 km ESE of Maupin, Oregon M4.2 59 km 16 km
Jan 30, 2000 6 km SE of Condon, Oregon M4.1 95 km -1 km
Aug 16, 2004 16 km ENE of Packwood, Washington M4.0 118 km -1 km
Oct 9, 1998 20 km S of White Swan, Washington M4.0 73 km 2 km
Jun 6, 2021 6 km NE of Government Camp, Oregon M3.9 52 km 4 km
Jun 25, 2004 17 km W of Packwood, Washington M3.9 124 km -1 km
Apr 24, 2003 3 km NW of North Portland, Oregon M3.9 122 km 17 km
Mar 22, 1997 10 km ESE of Condon, Oregon M3.9 99 km 0 km
Nov 18, 1997 20 km NW of Bickleton, Washington M3.9 79 km 15 km
Oct 1, 2004 37 km NNE of Amboy, Washington M3.9 101 km -1 km
Aug 7, 1992 8 km WSW of Irrigon, Oregon M3.9 125 km 0 km
Jan 3, 2018 37 km SSE of Morton, Washington M3.9 98 km 10 km
Feb 8, 1995 9 km ESE of Hubbard, Oregon M3.8 132 km 24 km
Aug 3, 2006 2 km WNW of Cherry Grove, Washington M3.8 113 km 14 km
Jun 29, 2002 7 km NE of Government Camp, Oregon M3.8 51 km 5 km
Jun 14, 2007 12 km ESE of Maupin, Oregon M3.8 59 km 18 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

9 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1.

Date Rating Distance Path Fatalities
Nov 12, 1991 EF1 95 km 0.2 mi 0
Apr 12, 1957 EF1 90 km 2.5 mi 0
Oct 22, 2022 EF0 81 km 0.9 mi 0
Apr 23, 2005 EF0 99 km 0.1 mi 0
Aug 26, 1997 EF0 90 km 1.0 mi 0
Apr 9, 1991 EF0 99 km 0.2 mi 0
May 11, 1970 EF0 87 km 0.1 mi 0
Oct 13, 1968 EF0 69 km 0.1 mi 0
Apr 12, 1957 EF0 86 km 16.2 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami 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 61 101 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

11 volcanoes within 200 km. Closest: Hood (50 km).

Name Type Elevation Last Eruption Distance
Hood Stratovolcano 3,426 m (11,240 ft) 1866 50 km
Indian Heaven Shield(s) 1,806 m (5,925 ft) -6250 60 km
Adams Stratovolcano 3,742 m (12,277 ft) 950 69 km
West Crater Volcanic field 1,329 m (4,360 ft) -5750 76 km
St. Helens Stratovolcano 2,549 m (8,363 ft) 2008 101 km
Jefferson Stratovolcano 3,199 m (10,495 ft) 950 117 km
Rainier Stratovolcano 4,392 m (14,409 ft) 1450 143 km
Sand Mountain Field Pyroclastic cone(s) 1,664 m (5,459 ft) -950 152 km
Belknap Shield(s) 2,095 m (6,873 ft) 480 159 km
Three Sisters Complex 3,159 m (10,364 ft) 440 173 km
Bachelor Stratovolcano 2,763 m (9,065 ft) -5800 188 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: RIVERSIDE (138,190 acres, 2020).

Year Name Acres Burned Distance
2020 RIVERSIDE 138,190 100 km
1996 SIMNASHO 118,466 85 km
2018 BOXCAR 0410 RN 99,874 69 km
2000 MULE DRY 90,184 90 km
2011 HANCOCK COMPLEX 71,495 92 km
2017 NENA SPRINGS 70,074 73 km
2018 SUBSTATION 0730 RN 69,109 23 km
2015 COUNTY LINE 2 68,189 91 km
2011 0655 RAZOR BACK EAST 65,350 74 km
2023 NEWELL ROAD 61,833 69 km
2015 COUGAR CREEK 51,866 63 km
2024 BIG HORN 51,023 87 km
2013 SUNNYSIDE TURNOFF 50,028 84 km
2018 STUBBLEFIELD 1008 RN 49,160 73 km
2017 EAGLE CREEK 48,816 60 km
2014 BLACK ROCK 40,760 84 km
2014 SHANIKO BUTTE 39,852 68 km
2015 HIGHWAY 8 35,296 79 km
2018 LONG HOLLOW 0806 RN 33,662 35 km
1994 LECLAIRE 32,087 89 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 37°F (3°C) 3.7 in
February 38°F (3°C) 2.7 in
March 44°F (7°C) 2.0 in
April 49°F (10°C) 1.2 in
May 56°F (13°C) 0.9 in
June 63°F (17°C) 0.7 in
July 75°F (24°C) 0.3 in Warmest, Driest
August 69°F (21°C) 0.5 in
September 62°F (17°C) 0.8 in
October 52°F (11°C) 1.5 in
November 41°F (5°C) 3.4 in
December 34°F (1°C) 3.7 in Coldest, Wettest

Dallesport has a seasonal temperature swing of 40°F / from 34°F in December to 75°F in July. Total annual precipitation is 21.2 inches, with December being the wettest month (3.7") and July the driest (0.3").

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