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Weather & Climate in T'Sou-ke, BC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
T'Sou-ke experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 36°F in January while summers reach 59°F in July. The area gets 225 sunny days per year, above the national average. Annual precipitation totals 61.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 112 feet.
Temperature
36°F Jan (2°C)
59°F Jul (15°C)
| Annual Average | 47.6°F |
| 12% below US avg | |
| January Average | 36°F (2°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 225 days/yr |
Geography
| Elevation | 112 ft (34 m) |
| Area | 0.3 sq mi (0.8 km²) |
| Population Density | 797/sq mi |
| Coordinates | 48.3628°N, 123.7471°W |
| Timezone | America/Vancouver |
Precipitation & Snow
Air Quality
Earthquake History
537 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.8.
| Jul 3, 1999 | 8 km N of Satsop, Washington | M5.8 | 145 km | 40 km |
| Jan 29, 1995 | 3 km WSW of Des Moines, Washington | M5.0 | 150 km | 15 km |
| Apr 14, 1990 | 4 km ENE of Deming, Washington | M5.0 | 128 km | 12 km |
| Jun 10, 2001 | 18 km N of Satsop, Washington | M5.0 | 134 km | 40 km |
| Jun 23, 1997 | 2 km NE of Enetai, Washington | M4.9 | 122 km | 13 km |
| Apr 25, 2003 | 26 km W of Brinnon, Washington | M4.8 | 85 km | 51 km |
| Feb 21, 2025 | 28 km W of Squamish, Canada | M4.8 | 149 km | 10 km |
| Jan 30, 2009 | 6 km ESE of Lofall, Washington | M4.7 | 108 km | 62 km |
| Jul 12, 2019 | 2 km S of Roosevelt, Washington | M4.6 | 140 km | 29 km |
| Jan 24, 2020 | 46 km WNW of Neah Bay, Washington | M4.5 | 108 km | 10 km |
| Mar 3, 2025 | 2025 Orcas Island, Washington | M4.5 | 75 km | 16 km |
| Jun 24, 1997 | 19 km SSW of Gibsons, Canada | M4.4 | 98 km | 3 km |
| Apr 2, 1990 | 2 km ENE of Deming, Washington | M4.3 | 126 km | 0 km |
| Sep 21, 2002 | 9 km SW of Friday Harbor, Washington | M4.1 | 48 km | 23 km |
| Feb 23, 2017 | 11 km NE of Hoodsport, Washington | M4.1 | 112 km | 15 km |
| Apr 3, 1990 | 3 km ENE of Deming, Washington | M4.0 | 127 km | 1 km |
| Jun 15, 1994 | 1 km WNW of Hoodsport, Washington | M4.0 | 115 km | 44 km |
| Apr 14, 1990 | 2 km ESE of Deming, Washington | M4.0 | 126 km | 3 km |
| Sep 26, 2024 | 12 km E of Saanichton, Canada | M4.0 | 44 km | 52 km |
| Dec 27, 2012 | 12 km E of North Saanich, Canada | M4.0 | 49 km | 54 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 2.4 m (8 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | — | 44 km |
| 1949 | PUGET SOUND, WA | Meteorological | 2.4 m | — | 149 km |
| 1820 | CAMANO ISLAND, WA | Meteorological | — | — | 108 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Baker (150 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 150 km |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 174 km |
| Garibaldi Lake | Volcanic field | 2,316 m (7,598 ft) | Unknown | 183 km |
| Glacier Peak | Stratovolcano | 3,213 m (10,541 ft) | 1700 | 197 km |
| Cayley Volcanic Field | Volcanic field | 2,375 m (7,792 ft) | Unknown | 198 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
6 wildfires (100+ acres) recorded within 100 km. Largest: DELABARRE (4,176 acres, 2023).
| Year | Name | Acres Burned | Distance |
| 2023 | DELABARRE | 4,176 | 69 km |
| 2018 | MAPLE | 3,547 | 98 km |
| 2015 | PARADISE | 2,818 | 73 km |
| 2016 | HAYES TWO | 2,679 | 68 km |
| 2011 | BIG HUMP | 1,400 | 88 km |
| 1985 | BEAVER | 1,107 | 96 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 9.8 in | Coldest |
| February | 39°F (4°C) | 6.8 in | |
| March | 42°F (5°C) | 5.9 in | |
| April | 45°F (7°C) | 3.9 in | |
| May | 51°F (10°C) | 2.4 in | |
| June | 55°F (13°C) | 1.7 in | |
| July | 59°F (15°C) | 1.1 in | Driest |
| August | 60°F (16°C) | 1.6 in | Warmest |
| September | 56°F (14°C) | 2.1 in | |
| October | 49°F (9°C) | 5.9 in | |
| November | 42°F (5°C) | 10.2 in | Wettest |
| December | 37°F (3°C) | 9.8 in |
T'Sou-ke has a seasonal temperature swing of 24°F / from 36°F in January to 60°F in August. Total annual precipitation is 61.3 inches, with November being the wettest month (10.2") and July the driest (1.1").