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Weather & Climate in Thompson-Nicola I, BC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Thompson-Nicola I has a cool climate with an average annual temperature of 43°F (6°C). Winters average 24°F in January while summers reach 62°F in July. The area gets 296 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 22.0 inches (drier than the 38-inch national average). The area receives 12.0 inches of snow annually. The city sits at an elevation of 807 feet.
Temperature
24°F Jan (-4°C)
62°F Jul (17°C)
| Annual Average | 43.4°F |
| 20% below US avg | |
| January Average | 24°F (-4°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 296 days/yr |
Geography
| Elevation | 807 ft (246 m) |
| Area | 2,214.9 sq mi (5,736.6 km²) |
| Population Density | 1/sq mi |
| Coordinates | 50.2494°N, 121.5616°W |
| Timezone | America/Vancouver |
Precipitation & Snow
Air Quality
Earthquake History
35 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| Aug 17, 2002 | 39 km ESE of Merritt, Canada | M4.5 | 96 km | 10 km |
| Feb 19, 1991 | 31 km E of Squamish, Canada | M4.3 | 104 km | 5 km |
| Sep 19, 1993 | 32 km ENE of Merritt, Canada | M3.8 | 86 km | 10 km |
| Jan 12, 1997 | 15 km N of Princeton, Canada | M3.5 | 105 km | 5 km |
| Apr 28, 2023 | 38 km SW of Princeton, Canada | M3.4 | 129 km | 5 km |
| Mar 8, 1992 | 27 km SW of Princeton, Canada | M3.4 | 123 km | 5 km |
| Jul 19, 2025 | 34 km W of Okanagan Falls, Canada | M3.4 | 146 km | 7 km |
| Aug 12, 2011 | 38 km NNE of Maple Ridge, Canada | M3.3 | 99 km | 20 km |
| Jul 5, 2015 | 7 km ENE of Sumas, Washington | M3.3 | 144 km | 8 km |
| Aug 20, 2003 | 39 km ESE of Merritt, Canada | M3.2 | 96 km | 10 km |
| Aug 19, 2017 | 23 km WNW of Princeton, Canada | M3.1 | 95 km | 6 km |
| May 18, 2011 | 18 km NNE of Princeton, Canada | M3.0 | 105 km | 8 km |
| Aug 15, 2016 | 43 km S of Princeton, Canada | M3.0 | 150 km | 10 km |
| Feb 13, 2010 | 36 km NNE of Princeton, Canada | M3.0 | 110 km | 18 km |
| Jul 3, 1991 | 6 km ENE of Maple Ridge, Canada | M3.0 | 132 km | 5 km |
| Jul 17, 2016 | 41 km NNE of Maple Ridge, Canada | M2.9 | 97 km | 1 km |
| Apr 9, 1990 | 24 km W of Peachland, Canada | M2.8 | 118 km | -2 km |
| Apr 15, 2007 | 5 km N of Peaceful Valley, Washington | M2.8 | 146 km | 12 km |
| Jan 24, 1994 | 15 km NNW of Mission, Canada | M2.8 | 123 km | 5 km |
| May 16, 2018 | 20 km SW of Whistler, Canada | M2.8 | 116 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
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 | — | 93 km |
| 1905 | THOMPSON RIVER | Meteorological | 6.0 m | 15 | 24 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Garibaldi Lake (109 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Garibaldi Lake | Volcanic field | 2,316 m (7,598 ft) | Unknown | 109 km |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 112 km |
| Cayley Volcanic Field | Volcanic field | 2,375 m (7,792 ft) | Unknown | 123 km |
| Meager | Complex | 2,680 m (8,793 ft) | -410 | 144 km |
| Bridge River Cones | Volcanic field | 2,500 m (8,202 ft) | Unknown | 144 km |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 165 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-4°C) | 2.8 in | Coldest |
| February | 30°F (-1°C) | 1.8 in | |
| March | 36°F (2°C) | 1.5 in | |
| April | 42°F (6°C) | 1.1 in | Driest |
| May | 50°F (10°C) | 1.5 in | |
| June | 57°F (14°C) | 1.6 in | |
| July | 62°F (17°C) | 1.4 in | |
| August | 63°F (17°C) | 1.3 in | Warmest |
| September | 55°F (13°C) | 1.3 in | |
| October | 45°F (7°C) | 2.0 in | |
| November | 34°F (1°C) | 3.0 in | Wettest |
| December | 26°F (-3°C) | 3.0 in |
Thompson-Nicola I has a seasonal temperature swing of 38°F / from 24°F in January to 63°F in August. Total annual precipitation is 22.0 inches, with November being the wettest month (3.0") and April the driest (1.1").