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Weather & Climate in Troinex, Switzerland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Troinex experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 37°F in January while summers reach 70°F in July. The area gets 270 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 53.9 inches (wetter than the 38-inch national average). The area receives 13.9 inches of snow annually. The city sits at an elevation of 1,391 feet.
Temperature
37°F Jan (3°C)
70°F Jul (21°C)
| Annual Average | 53.2°F |
| 1% below US avg | |
| January Average | 37°F (3°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 1,391 ft (424 m) |
| Area | 1.3 sq mi (3.4 km²) |
| Population Density | 1,661/sq mi |
| Coordinates | 46.1631°N, 6.1475°W |
| Timezone | Europe/Zurich |
Precipitation & Snow
Air Quality
Earthquake History
859 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 | 107 km | 10 km |
| Mar 12, 2022 | 3 km S of Faverges, France | M4.5 | 51 km | 3 km |
| Dec 14, 1994 | 7 km SSE of Amancy, France | M4.5 | 23 km | 10 km |
| Jul 15, 1996 | 3 km NE of Chilly, France | M4.5 | 21 km | 5 km |
| Feb 23, 2004 | 5 km SSE of Roulans, France | M4.4 | 124 km | 17 km |
| Mar 22, 2023 | 1 km NW of Pont-de-Roide, France | M4.4 | 145 km | 12 km |
| May 24, 1995 | 7 km NE of Le Chenit, Switzerland | M4.4 | 55 km | 6 km |
| Jul 23, 1996 | 4 km W of Choisy, France | M4.4 | 22 km | 10 km |
| Apr 29, 2003 | 2 km SSW of Varen, Switzerland | M4.3 | 113 km | 8 km |
| Jun 30, 2010 | 3 km NW of Saint-Martin-de-Belleville, France | M4.3 | 88 km | 2 km |
| Mar 31, 1996 | 7 km NNW of Bionaz, Italy | M4.3 | 100 km | 5 km |
| May 20, 1999 | 4 km SSE of Plaffeien, Switzerland | M4.2 | 107 km | 2 km |
| Aug 22, 2003 | 6 km NNW of Savièse, Switzerland | M4.2 | 90 km | 4 km |
| May 14, 2004 | 0 km SSE of Chiusa di San Michele, Italy | M4.2 | 150 km | 10 km |
| Jan 11, 1999 | 2 km W of Saint-Paul-de-Varces, France | M4.2 | 128 km | 10 km |
| Jul 1, 2017 | 7 km E of Châtel-Saint-Denis, Switzerland | M4.1 | 77 km | 2 km |
| Sep 17, 1995 | 0 km ESE of Corminboeuf, Switzerland | M4.1 | 103 km | 10 km |
| Oct 7, 1995 | 1 km SSE of Grolley, Switzerland | M4.1 | 102 km | 10 km |
| Jan 11, 2006 | 1 km S of Saint-Rambert-en-Bugey, France | M4.1 | 60 km | 5 km |
| May 30, 2001 | 6 km N of Beaufort, France | M4.1 | 55 km | 2 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 563 | LAKE GENEVA | Meteorological | — | — | 56 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 3.6 in | |
| February | 35°F (2°C) | 3.7 in | |
| March | 41°F (5°C) | 3.1 in | |
| April | 46°F (8°C) | 2.9 in | Driest |
| May | 54°F (12°C) | 3.4 in | |
| June | 60°F (16°C) | 3.9 in | |
| July | 70°F (21°C) | 3.2 in | Warmest |
| August | 64°F (18°C) | 3.0 in | |
| September | 57°F (14°C) | 4.1 in | |
| October | 49°F (10°C) | 4.1 in | |
| November | 40°F (4°C) | 4.2 in | Wettest |
| December | 35°F (2°C) | 4.1 in | Coldest |
Troinex has a seasonal temperature swing of 36°F / from 35°F in December to 70°F in July. Total annual precipitation is 43.2 inches, with November being the wettest month (4.2") and April the driest (2.9").