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Weather & Climate in Squamish-Lillooet D, BC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Squamish-Lillooet D has a cool climate with an average annual temperature of 43°F (6°C). Winters average 31°F in January while summers reach 59°F in July. The area gets 211 sunny days per year. Annual precipitation totals 116.3 inches (wetter than the 38-inch national average). The area receives 335.3 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 33 feet.
Temperature
31°F Jan (-0°C)
59°F Jul (15°C)
| Annual Average | 43.1°F |
| 20% below US avg | |
| January Average | 31°F (-0°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 211 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 1,173.8 sq mi (3,040.2 km²) |
| Population Density | 1/sq mi |
| Coordinates | 49.7388°N, 123.1342°W |
| Timezone | America/Vancouver |
Precipitation & Snow
Air Quality
Earthquake History
177 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 | 122 km | 12 km |
| Feb 21, 2025 | 28 km W of Squamish, Canada | M4.8 | 30 km | 10 km |
| Mar 3, 2025 | 2025 Orcas Island, Washington | M4.5 | 128 km | 16 km |
| Jun 24, 1997 | 19 km SSW of Gibsons, Canada | M4.4 | 66 km | 3 km |
| Feb 19, 1991 | 31 km E of Squamish, Canada | M4.3 | 30 km | 5 km |
| Apr 2, 1990 | 2 km ENE of Deming, Washington | M4.3 | 122 km | 0 km |
| Sep 21, 2002 | 9 km SW of Friday Harbor, Washington | M4.1 | 139 km | 23 km |
| Feb 22, 1996 | 31 km NNE of South Pender Harbour, Canada | M4.1 | 58 km | 2 km |
| Apr 3, 1990 | 3 km ENE of Deming, Washington | M4.0 | 122 km | 1 km |
| Apr 14, 1990 | 2 km ESE of Deming, Washington | M4.0 | 123 km | 3 km |
| Sep 26, 2024 | 12 km E of Saanichton, Canada | M4.0 | 129 km | 52 km |
| Dec 27, 2012 | 12 km E of North Saanich, Canada | M4.0 | 121 km | 54 km |
| Feb 18, 2017 | 103 km NE of Campbell River, Canada | M3.9 | 147 km | 8 km |
| Dec 11, 1999 | 10 km NNE of Oak Bay, Canada | M3.7 | 134 km | 49 km |
| Feb 8, 2011 | 7 km WNW of Friday Harbor, Washington | M3.6 | 131 km | 52 km |
| Apr 14, 1990 | 2 km E of Deming, Washington | M3.6 | 123 km | 2 km |
| May 23, 1990 | 1 km E of Deming, Washington | M3.6 | 122 km | 1 km |
| Jun 21, 1990 | 4 km ENE of Deming, Washington | M3.6 | 123 km | 1 km |
| Oct 4, 2024 | 22 km NNE of Ganges, Canada | M3.6 | 79 km | 61 km |
| Jul 31, 1990 | 3 km E of Deming, Washington | M3.5 | 123 km | 1 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 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 | — | 87 km |
| 1946 | BRITISH COLUMBIA | Eruption + Earthquake | 9.0 m | 1 | 129 km |
| 1905 | THOMPSON RIVER | Meteorological | 6.0 m | 15 | 148 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Garibaldi (16 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 16 km |
| Garibaldi Lake | Volcanic field | 2,316 m (7,598 ft) | Unknown | 24 km |
| Cayley Volcanic Field | Volcanic field | 2,375 m (7,792 ft) | Unknown | 44 km |
| Meager | Complex | 2,680 m (8,793 ft) | -410 | 103 km |
| Bridge River Cones | Volcanic field | 2,500 m (8,202 ft) | Unknown | 120 km |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 144 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-0°C) | 12.1 in | |
| February | 34°F (1°C) | 7.8 in | |
| March | 37°F (3°C) | 7.6 in | |
| April | 42°F (6°C) | 5.8 in | |
| May | 49°F (9°C) | 4.5 in | |
| June | 54°F (12°C) | 3.5 in | |
| July | 59°F (15°C) | 2.4 in | Driest |
| August | 60°F (16°C) | 2.6 in | Warmest |
| September | 54°F (12°C) | 3.2 in | |
| October | 46°F (8°C) | 9.5 in | |
| November | 36°F (2°C) | 14.1 in | Wettest |
| December | 31°F (-1°C) | 10.9 in | Coldest |
Squamish-Lillooet D has a seasonal temperature swing of 29°F / from 31°F in December to 60°F in August. Total annual precipitation is 83.9 inches, with November being the wettest month (14.1") and July the driest (2.4").