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Weather & Climate in Cowichan Valley F, BC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Cowichan Valley F has a cool climate with an average annual temperature of 45°F (7°C). Winters average 34°F in January while summers reach 58°F in July. The area gets 175 sunny days per year. Annual precipitation totals 96.0 inches (wetter than the 38-inch national average). The area receives 29.6 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 584 feet.
Temperature
34°F Jan (1°C)
58°F Jul (14°C)
| Annual Average | 45.2°F |
| 16% below US avg | |
| January Average | 34°F (1°C) |
| July Average | 58°F (14°C) |
| Sunny Days | 175 days/yr |
Geography
| Elevation | 584 ft (178 m) |
| Area | 691.9 sq mi (1,791.9 km²) |
| Population Density | 3/sq mi |
| Coordinates | 48.8137°N, 124.1726°W |
| Timezone | America/Vancouver |
Precipitation & Snow
Air Quality
Earthquake History
324 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| Apr 14, 1990 | 4 km ENE of Deming, Washington | M5.0 | 147 km | 12 km |
| Apr 25, 2003 | 26 km W of Brinnon, Washington | M4.8 | 144 km | 51 km |
| Feb 21, 2025 | 28 km W of Squamish, Canada | M4.8 | 108 km | 10 km |
| Jan 8, 2015 | 19 km E of Tofino, Canada | M4.8 | 115 km | 25 km |
| Mar 3, 2025 | 2025 Orcas Island, Washington | M4.5 | 103 km | 16 km |
| Jan 24, 2020 | 46 km WNW of Neah Bay, Washington | M4.5 | 80 km | 10 km |
| Jun 24, 1997 | 19 km SSW of Gibsons, Canada | M4.4 | 62 km | 3 km |
| Feb 19, 1991 | 31 km E of Squamish, Canada | M4.3 | 144 km | 5 km |
| Jan 23, 2001 | 9 km NNW of Ucluelet, Canada | M4.3 | 105 km | 10 km |
| Apr 2, 1990 | 2 km ENE of Deming, Washington | M4.3 | 145 km | 0 km |
| Feb 22, 1996 | 31 km NNE of South Pender Harbour, Canada | M4.1 | 122 km | 2 km |
| Sep 21, 2002 | 9 km SW of Friday Harbor, Washington | M4.1 | 85 km | 23 km |
| Apr 3, 1990 | 3 km ENE of Deming, Washington | M4.0 | 146 km | 1 km |
| May 8, 1999 | 17 km NW of Tofino, Canada | M4.0 | 148 km | 33 km |
| Dec 25, 1999 | 40 km SW of Ucluelet, Canada | M4.0 | 126 km | 30 km |
| Apr 14, 1990 | 2 km ESE of Deming, Washington | M4.0 | 145 km | 3 km |
| Dec 27, 2012 | 12 km E of North Saanich, Canada | M4.0 | 70 km | 54 km |
| Sep 26, 2024 | 12 km E of Saanichton, Canada | M4.0 | 73 km | 52 km |
| Jul 1, 2009 | 4 km SE of Coupeville, Washington | M4.0 | 132 km | 58 km |
| Nov 20, 1994 | 26 km N of Ucluelet, Canada | M3.9 | 107 km | 38 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 9.0 m (30 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1946 | BRITISH COLUMBIA | Eruption + Earthquake | 9.0 m | 1 | 129 km |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | — | 103 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Garibaldi (143 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 143 km |
| Garibaldi Lake | Volcanic field | 2,316 m (7,598 ft) | Unknown | 151 km |
| Cayley Volcanic Field | Volcanic field | 2,375 m (7,792 ft) | Unknown | 159 km |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 173 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 34°F (1°C) | 15.0 in | |
| February | 37°F (3°C) | 10.9 in | |
| March | 38°F (3°C) | 9.7 in | |
| April | 42°F (6°C) | 6.6 in | |
| May | 48°F (9°C) | 4.1 in | |
| June | 53°F (12°C) | 3.0 in | |
| July | 58°F (14°C) | 1.7 in | Driest |
| August | 59°F (15°C) | 2.5 in | Warmest |
| September | 54°F (12°C) | 2.9 in | |
| October | 46°F (8°C) | 9.5 in | |
| November | 39°F (4°C) | 15.6 in | Wettest |
| December | 34°F (1°C) | 14.7 in | Coldest |
Cowichan Valley F has a seasonal temperature swing of 24°F / from 34°F in December to 59°F in August. Total annual precipitation is 96.0 inches, with November being the wettest month (15.6") and July the driest (1.7").