Glenrosa, BC

Full City Profile · British Columbia

6,039 Population 89/sq mi density
49°F Avg Temperature
Glenrosa experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 30°F in January while summers reach 70°F in July. Annual precipitation totals 14.2 inches. The area receives 29.4 inches of snow annually.

Temperature

30°F Jan (-1°C) 70°F Jul (21°C)
Annual Average48.8°F
10% below US avg
January Average30°F (-1°C)
July Average70°F (21°C)

Geography

Elevation1,916 ft (584 m)
Area67.8 sq mi (175.7 km²)
Population Density89/sq mi
Coordinates49.8500°N, 119.6667°W
TimezoneAmerica/Vancouver

Precipitation & Snow

Annual Rainfall 14.2"
63% below US avg
Snowfall 29.4"
Wettest Month (Jun) 2.40"
Driest Month (Apr) 1.26"

Air Quality

Earthquake History

80 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.5. Most recent: M2.6 on Aug 10, 2025.

Aug 17, 2002 39 km ESE of Merritt, Canada M4.5 46 km
Sep 10, 2016 23 km E of Oliver, Canada M3.9 78 km
Sep 19, 1993 32 km ENE of Merritt, Canada M3.8 61 km
Mar 3, 1998 16 km NNE of Grand Forks, Canada M3.8 122 km
Jan 26, 1992 9 km SSE of Okanagan Falls, Canada M3.7 65 km
Jan 12, 1997 15 km N of Princeton, Canada M3.5 66 km
Apr 28, 2023 38 km SW of Princeton, Canada M3.4 112 km
Mar 8, 1992 27 km SW of Princeton, Canada M3.4 101 km
Jul 19, 2025 34 km W of Okanagan Falls, Canada M3.4 58 km
Apr 20, 2025 8 km NW of Tonasket, Washington M3.2 121 km
Mar 3, 1998 15 km NNE of Grand Forks, Canada M3.2 125 km
Aug 20, 2003 39 km ESE of Merritt, Canada M3.2 46 km
Apr 13, 2025 7 km NW of Tonasket, Washington M3.2 122 km
May 28, 2022 55 km NE of Marblemount, Washington M3.2 143 km
May 15, 2025 9 km NW of Tonasket, Washington M3.1 120 km
Apr 13, 2025 6 km NW of Tonasket, Washington M3.1 122 km
Aug 19, 2017 23 km WNW of Princeton, Canada M3.1 89 km
Nov 25, 2000 13 km SSE of Oroville, Washington M3.1 115 km
Apr 16, 2025 9 km NW of Tonasket, Washington M3.1 121 km
May 18, 2011 18 km NNE of Princeton, Canada M3.0 62 km
Source: USGS (M2.5+, 1990-2025)

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 6.0 m (20 ft).

Year Location Cause Max Wave Deaths Distance
1905 THOMPSON RIVER Meteorological 6.0 m 15 136 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

1 volcano within 200 km. Closest: Baker (196 km).

Name Type Elevation Last Eruption Distance
Baker Stratovolcano(es) 3,285 m (10,778 ft) 1880 196 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Wildfire History

5 wildfires (100+ acres) within 100 km. Largest: UNNAMED (8,385 ac, 1994).

Year Name Acres Distance
1994 UNNAMED 8,385 92 km
2015 NEWBY LAKE 5,794 99 km
2023 CRATER CREEK 4,837 99 km
2007 LITTLE CHOPAKA 4,406 98 km
1994 UNNAMED 3,324 98 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 30°F (-1°C) 2.1 in
February 24°F (-4°C) 1.5 in
March 30°F (-1°C) 1.4 in
April 38°F (3°C) 1.3 in Driest
May 46°F (8°C) 2.0 in
June 52°F (11°C) 2.4 in Wettest
July 70°F (21°C) 2.0 in Warmest
August 58°F (15°C) 1.6 in
September 51°F (10°C) 1.5 in
October 40°F (4°C) 1.4 in
November 28°F (-3°C) 2.2 in
December 20°F (-7°C) 2.4 in Coldest

Glenrosa has a seasonal temperature swing of 51°F / from 20°F in December to 70°F in July. Total annual precipitation is 21.7 inches, with June being the wettest month (2.4") and April the driest (1.3").

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