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Weather & Climate in Troistorrents, Switzerland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Troistorrents has a cool climate with an average annual temperature of 44°F (7°C). Winters average 30°F in January while summers reach 60°F in July. The area gets 242 sunny days per year, above the national average. Annual precipitation totals 52.1 inches (wetter than the 38-inch national average). The area receives 13.9 inches of snow annually. The city sits at an elevation of 2,579 feet.
Temperature
30°F Jan (-1°C)
60°F Jul (16°C)
| Annual Average | 44.4°F |
| 18% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 60°F (16°C) |
| Sunny Days | 242 days/yr |
Geography
| Elevation | 2,579 ft (786 m) |
| Area | 14.3 sq mi (37.0 km²) |
| Population Density | 271/sq mi |
| Coordinates | 46.2289°N, 6.9159°W |
| Timezone | Europe/Zurich |
Precipitation & Snow
Air Quality
Earthquake History
943 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.7.
| Feb 14, 1999 | 3 km NNE of Belfaux, Switzerland | M4.7 | 71 km | 10 km |
| Dec 14, 1994 | 7 km SSE of Amancy, France | M4.5 | 50 km | 10 km |
| Jul 15, 1996 | 3 km NE of Chilly, France | M4.5 | 76 km | 5 km |
| Mar 12, 2022 | 3 km S of Faverges, France | M4.5 | 75 km | 3 km |
| Jul 23, 1996 | 4 km W of Choisy, France | M4.4 | 75 km | 10 km |
| Feb 23, 2004 | 5 km SSE of Roulans, France | M4.4 | 126 km | 17 km |
| Mar 22, 2023 | 1 km NW of Pont-de-Roide, France | M4.4 | 130 km | 12 km |
| Jul 25, 2011 | 5 km NW of Cantalupa, Italy | M4.4 | 142 km | 25 km |
| May 24, 1995 | 7 km NE of Le Chenit, Switzerland | M4.4 | 65 km | 6 km |
| Nov 21, 1995 | 1 km SW of Collegno, Italy | M4.4 | 138 km | 22 km |
| Jun 14, 1993 | 3 km S of Vogogna, Italy | M4.4 | 110 km | 10 km |
| Feb 11, 1990 | northern Italy | M4.3 | 146 km | 10 km |
| Jun 30, 2010 | 3 km NW of Saint-Martin-de-Belleville, France | M4.3 | 97 km | 2 km |
| Mar 31, 1996 | 7 km NNW of Bionaz, Italy | M4.3 | 49 km | 5 km |
| Apr 29, 2003 | 2 km SSW of Varen, Switzerland | M4.3 | 53 km | 8 km |
| May 14, 1999 | 9 km NW of Brienz, Switzerland | M4.2 | 102 km | 5 km |
| May 14, 2004 | 0 km SSE of Chiusa di San Michele, Italy | M4.2 | 130 km | 10 km |
| May 20, 1999 | 4 km SSE of Plaffeien, Switzerland | M4.2 | 60 km | 2 km |
| Jul 30, 2016 | 0 km SSW of Fleccia-Chianavasso, Italy | M4.2 | 145 km | 11 km |
| Aug 22, 2003 | 6 km NNW of Savièse, Switzerland | M4.2 | 31 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 4.0 m (13 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1601 | LAKE LUCERNE | Eruption + Earthquake | 4.0 m | 8 | 137 km |
| 1996 | LAKE BRIENZ | Meteorological | 0.5 m | — | 98 km |
| 563 | LAKE GENEVA | Meteorological | — | — | 16 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 4.4 in | Coldest |
| February | 31°F (-0°C) | 4.6 in | |
| March | 36°F (2°C) | 3.8 in | Driest |
| April | 41°F (5°C) | 3.8 in | |
| May | 50°F (10°C) | 4.3 in | |
| June | 55°F (13°C) | 4.9 in | |
| July | 60°F (16°C) | 4.2 in | Warmest |
| August | 60°F (16°C) | 4.2 in | |
| September | 54°F (12°C) | 3.8 in | |
| October | 46°F (8°C) | 4.4 in | |
| November | 37°F (3°C) | 4.8 in | |
| December | 32°F (-0°C) | 5.0 in | Wettest |
Troistorrents has a seasonal temperature swing of 30°F / from 30°F in January to 60°F in July. Total annual precipitation is 52.0 inches, with December being the wettest month (5.0") and March the driest (3.8").