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Troistorrents, Switzerland

Full City Profile

3,873 Population 271/sq mi density
2,579 ft Elevation 786 meters
44°F Avg Temperature 7°C
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. Annual precipitation totals 52.1 inches. The area receives 13.9 inches of snow annually.

Temperature

30°F Jan (-1°C) 60°F Jul (16°C)
Annual Average44.4°F
18% below US avg
January Average30°F (-1°C)
July Average60°F (16°C)
Sunny Days242 days/yr

Geography

Elevation2,579 ft (786 m)
Area14.3 sq mi (37.0 km²)
Population Density271/sq mi
Coordinates46.2289°N, 6.9159°W
TimezoneEurope/Zurich

Precipitation & Snow

Annual Rainfall 52.1"
37% above US avg
Snowfall 13.9"
Wettest Month (Dec) 4.96"
Driest Month (Mar) 3.78"

Air Quality

Earthquake History

943 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.7. Most recent: M0.0 on Jul 21, 2025.

Feb 14, 1999 3 km NNE of Belfaux, Switzerland M4.7 71 km
Dec 14, 1994 7 km SSE of Amancy, France M4.5 50 km
Jul 15, 1996 3 km NE of Chilly, France M4.5 76 km
Mar 12, 2022 3 km S of Faverges, France M4.5 75 km
Jul 23, 1996 4 km W of Choisy, France M4.4 75 km
Feb 23, 2004 5 km SSE of Roulans, France M4.4 126 km
Mar 22, 2023 1 km NW of Pont-de-Roide, France M4.4 130 km
Jul 25, 2011 5 km NW of Cantalupa, Italy M4.4 142 km
May 24, 1995 7 km NE of Le Chenit, Switzerland M4.4 65 km
Nov 21, 1995 1 km SW of Collegno, Italy M4.4 138 km
Jun 14, 1993 3 km S of Vogogna, Italy M4.4 110 km
Feb 11, 1990 northern Italy M4.3 146 km
Jun 30, 2010 3 km NW of Saint-Martin-de-Belleville, France M4.3 97 km
Mar 31, 1996 7 km NNW of Bionaz, Italy M4.3 49 km
Apr 29, 2003 2 km SSW of Varen, Switzerland M4.3 53 km
May 14, 1999 9 km NW of Brienz, Switzerland M4.2 102 km
May 14, 2004 0 km SSE of Chiusa di San Michele, Italy M4.2 130 km
May 20, 1999 4 km SSE of Plaffeien, Switzerland M4.2 60 km
Jul 30, 2016 0 km SSW of Fleccia-Chianavasso, Italy M4.2 145 km
Aug 22, 2003 6 km NNW of Savièse, Switzerland M4.2 31 km
Source: USGS (M2.5+, 1990–2025)

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. Sorted by wave height.

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").

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