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Dewdney, BC

Full City Profile · British Columbia

3.1 /5.0
B Good
570 Population 15/sq mi density
$76,768 Median Income $46,858 per capita
$560,468 Home Value
$1,072 Median Rent 27.8% income on rent
48°F Avg Temperature 195 sunny days/yr
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.6 / 5.0
$76,768 median income, 5.1% unemployment
C+
Affordability
2.5 / 5.0
$560,468 home value, $1,072/mo rent
C+
Safety
2.5 / 5.0
B+
Education
3.6 / 5.0
32.9% bachelor's degree or higher
Dewdney experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 34°F in January while summers reach 61°F in July. The area gets 195 sunny days per year. Annual precipitation totals 78.0 inches. The area receives 20.2 inches of snow annually.

Temperature

34°F Jan (1°C) 61°F Jul (16°C)
Annual Average47.5°F
12% below US avg
January Average34°F (1°C)
July Average61°F (16°C)
Sunny Days195 days/yr

Geography

Elevation10 ft (3 m)
Area37.4 sq mi (96.8 km²)
Population Density15/sq mi
Coordinates49.1667°N, 122.2000°W
TimezoneAmerica/Vancouver

Precipitation & Snow

Annual Rainfall 78.0"
105% above US avg
Snowfall 20.2"
Wettest Month (Nov) 11.77"
Driest Month (Jul) 2.68"

Air Quality

Earthquake History

333 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.0. Most recent: M2.9 on Aug 21, 2025.

Apr 14, 1990 4 km ENE of Deming, Washington M5.0 36 km
Feb 21, 2025 28 km W of Squamish, Canada M4.8 114 km
Jul 12, 2019 2 km S of Roosevelt, Washington M4.6 145 km
Mar 3, 2025 2025 Orcas Island, Washington M4.5 76 km
Jun 24, 1997 19 km SSW of Gibsons, Canada M4.4 104 km
Apr 2, 1990 2 km ENE of Deming, Washington M4.3 37 km
Feb 19, 1991 31 km E of Squamish, Canada M4.3 70 km
Feb 22, 1996 31 km NNE of South Pender Harbour, Canada M4.1 147 km
Sep 21, 2002 9 km SW of Friday Harbor, Washington M4.1 102 km
Apr 3, 1990 3 km ENE of Deming, Washington M4.0 37 km
Apr 14, 1990 2 km ESE of Deming, Washington M4.0 38 km
Dec 27, 2012 12 km E of North Saanich, Canada M4.0 96 km
Sep 26, 2024 12 km E of Saanichton, Canada M4.0 101 km
Jul 1, 2009 4 km SE of Coupeville, Washington M4.0 113 km
Mar 17, 2004 3 km SW of Clear Lake, Washington M3.8 80 km
Dec 11, 1999 10 km NNE of Oak Bay, Canada M3.7 104 km
Feb 14, 2025 16 km SSE of Victoria, Canada M3.7 126 km
Feb 8, 2011 7 km WNW of Friday Harbor, Washington M3.6 95 km
May 23, 1990 1 km E of Deming, Washington M3.6 38 km
Mar 8, 1990 2 km WSW of Swede Heaven, Washington M3.6 105 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

2 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 36 km
1820 CAMANO ISLAND, WA Meteorological 124 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

6 volcanoes within 200 km. Closest: Baker (52 km).

Name Type Elevation Last Eruption Distance
Baker Stratovolcano(es) 3,285 m (10,778 ft) 1880 52 km
Garibaldi Stratovolcano 2,678 m (8,786 ft) -8060 95 km
Garibaldi Lake Volcanic field 2,316 m (7,598 ft) Unknown 103 km
Cayley Volcanic Field Volcanic field 2,375 m (7,792 ft) Unknown 132 km
Glacier Peak Stratovolcano 3,213 m (10,541 ft) 1700 142 km
Meager Complex 2,680 m (8,793 ft) -410 188 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Wildfire History

10 wildfires (100+ acres) within 100 km. Largest: SOURDOUGH (7,517 ac, 2023).

Year Name Acres Distance
2023 SOURDOUGH 7,517 90 km
2015 GOODELL 6,624 89 km
2022 COPPER LAKE 3,825 62 km
2022 BRUSH CREEK 2 3,186 66 km
2022 SILESIA 2,737 56 km
2022 THREE FOOLS 2,451 98 km
2022 LITTLE CHILL 2,242 58 km
2003 BIGBEAVER 1,807 89 km
1998 UNNAMED 1,174 92 km
2004 FREEZEOUT 1,155 93 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 34°F (1°C) 10.1 in Coldest
February 38°F (3°C) 7.5 in
March 41°F (5°C) 7.0 in
April 46°F (8°C) 5.9 in
May 52°F (11°C) 4.7 in
June 57°F (14°C) 3.8 in
July 61°F (16°C) 2.7 in Driest
August 63°F (17°C) 2.7 in Warmest
September 57°F (14°C) 3.9 in
October 48°F (9°C) 7.9 in
November 40°F (4°C) 11.8 in Wettest
December 35°F (2°C) 10.1 in

Dewdney has a seasonal temperature swing of 29°F / from 34°F in January to 63°F in August. Total annual precipitation is 78.0 inches, with November being the wettest month (11.8") and July the driest (2.7").

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