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Weather & Climate in Bons-en-Chablais, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bons-en-Chablais experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 39°F in January while summers reach 70°F in July. The area gets 265 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 54.8 inches (wetter than the 38-inch national average). The area receives 9.0 inches of snow annually. The city sits at an elevation of 1,860 feet.
Temperature
39°F Jan (4°C)
70°F Jul (21°C)
| Annual Average | 54.5°F |
| 1% above US avg | |
| January Average | 39°F (4°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 265 days/yr |
Geography
| Elevation | 1,860 ft (567 m) |
| Area | 9.5 sq mi (24.7 km²) |
| Population Density | 463/sq mi |
| Coordinates | 46.2649°N, 6.3713°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
864 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 | 87 km | 10 km |
| Mar 12, 2022 | 3 km S of Faverges, France | M4.5 | 61 km | 3 km |
| Jul 15, 1996 | 3 km NE of Chilly, France | M4.5 | 41 km | 5 km |
| Dec 14, 1994 | 7 km SSE of Amancy, France | M4.5 | 28 km | 10 km |
| Mar 22, 2023 | 1 km NW of Pont-de-Roide, France | M4.4 | 129 km | 12 km |
| May 24, 1995 | 7 km NE of Le Chenit, Switzerland | M4.4 | 43 km | 6 km |
| Feb 23, 2004 | 5 km SSE of Roulans, France | M4.4 | 112 km | 17 km |
| Jul 23, 1996 | 4 km W of Choisy, France | M4.4 | 41 km | 10 km |
| Apr 29, 2003 | 2 km SSW of Varen, Switzerland | M4.3 | 95 km | 8 km |
| Mar 31, 1996 | 7 km NNW of Bionaz, Italy | M4.3 | 87 km | 5 km |
| Jun 30, 2010 | 3 km NW of Saint-Martin-de-Belleville, France | M4.3 | 95 km | 2 km |
| Aug 22, 2003 | 6 km NNW of Savièse, Switzerland | M4.2 | 72 km | 4 km |
| May 20, 1999 | 4 km SSE of Plaffeien, Switzerland | M4.2 | 86 km | 2 km |
| Jan 11, 1999 | 2 km W of Saint-Paul-de-Varces, France | M4.2 | 145 km | 10 km |
| May 14, 2004 | 0 km SSE of Chiusa di San Michele, Italy | M4.2 | 149 km | 10 km |
| May 14, 1999 | 9 km NW of Brienz, Switzerland | M4.2 | 134 km | 5 km |
| May 30, 2001 | 6 km N of Beaufort, France | M4.1 | 57 km | 2 km |
| Jan 11, 2006 | 1 km S of Saint-Rambert-en-Bugey, France | M4.1 | 81 km | 5 km |
| Sep 17, 1995 | 0 km ESE of Corminboeuf, Switzerland | M4.1 | 83 km | 10 km |
| Jul 1, 2017 | 7 km E of Châtel-Saint-Denis, Switzerland | M4.1 | 56 km | 2 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 0.5 m (2 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1996 | LAKE BRIENZ | Meteorological | 0.5 m | — | 133 km |
| 563 | LAKE GENEVA | Meteorological | — | — | 36 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 4.2 in | |
| February | 33°F (1°C) | 4.3 in | Coldest |
| March | 39°F (4°C) | 3.5 in | |
| April | 44°F (7°C) | 3.3 in | Driest |
| May | 52°F (11°C) | 3.8 in | |
| June | 58°F (14°C) | 4.6 in | |
| July | 70°F (21°C) | 3.8 in | Warmest |
| August | 62°F (17°C) | 3.7 in | |
| September | 56°F (13°C) | 4.2 in | |
| October | 48°F (9°C) | 4.4 in | |
| November | 39°F (4°C) | 4.7 in | Wettest |
| December | 34°F (1°C) | 4.7 in |
Bons-en-Chablais has a seasonal temperature swing of 37°F / from 33°F in February to 70°F in July. Total annual precipitation is 48.9 inches, with November being the wettest month (4.7") and April the driest (3.3").