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Weather & Climate in Oyonnax, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Oyonnax experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 38°F in January while summers reach 68°F in July. The area gets 251 sunny days per year, above the national average. Annual precipitation totals 68.2 inches (wetter than the 38-inch national average). The area receives 13.1 inches of snow annually. The city sits at an elevation of 1,824 feet.
Temperature
38°F Jan (4°C)
68°F Jul (20°C)
| Annual Average | 53.5°F |
| 1% below US avg | |
| January Average | 38°F (4°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 251 days/yr |
Geography
| Elevation | 1,824 ft (556 m) |
| Area | 14.0 sq mi (36.4 km²) |
| Population Density | 1,830/sq mi |
| Coordinates | 46.2592°N, 5.6573°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
655 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 | 131 km | 10 km |
| Dec 14, 1994 | 7 km SSE of Amancy, France | M4.5 | 60 km | 10 km |
| Jul 15, 1996 | 3 km NE of Chilly, France | M4.5 | 37 km | 5 km |
| Mar 12, 2022 | 3 km S of Faverges, France | M4.5 | 77 km | 3 km |
| Feb 23, 2004 | 5 km SSE of Roulans, France | M4.4 | 122 km | 17 km |
| May 24, 1995 | 7 km NE of Le Chenit, Switzerland | M4.4 | 66 km | 6 km |
| Jul 23, 1996 | 4 km W of Choisy, France | M4.4 | 40 km | 10 km |
| Jun 30, 2010 | 3 km NW of Saint-Martin-de-Belleville, France | M4.3 | 114 km | 2 km |
| Apr 29, 2003 | 2 km SSW of Varen, Switzerland | M4.3 | 149 km | 8 km |
| Mar 31, 1996 | 7 km NNW of Bionaz, Italy | M4.3 | 139 km | 5 km |
| May 20, 1999 | 4 km SSE of Plaffeien, Switzerland | M4.2 | 135 km | 2 km |
| Jan 11, 1999 | 2 km W of Saint-Paul-de-Varces, France | M4.2 | 132 km | 10 km |
| Aug 22, 2003 | 6 km NNW of Savièse, Switzerland | M4.2 | 126 km | 4 km |
| May 30, 2001 | 6 km N of Beaufort, France | M4.1 | 89 km | 2 km |
| Jul 1, 2017 | 7 km E of Châtel-Saint-Denis, Switzerland | M4.1 | 107 km | 2 km |
| Jan 11, 2006 | 1 km S of Saint-Rambert-en-Bugey, France | M4.1 | 40 km | 5 km |
| Oct 7, 1995 | 1 km SSE of Grolley, Switzerland | M4.1 | 126 km | 10 km |
| Sep 17, 1995 | 0 km ESE of Corminboeuf, Switzerland | M4.1 | 127 km | 10 km |
| May 25, 2003 | 4 km ESE of Valloire, France | M4.0 | 139 km | 6 km |
| Feb 17, 2008 | 8 km N of Saint-Rhémy, Italy | M4.0 | 122 km | 8 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 | — | — | 90 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (4°C) | 3.7 in | |
| February | 36°F (2°C) | 3.6 in | |
| March | 42°F (5°C) | 3.2 in | |
| April | 47°F (8°C) | 3.6 in | |
| May | 55°F (13°C) | 4.2 in | |
| June | 61°F (16°C) | 4.1 in | |
| July | 68°F (20°C) | 3.4 in | Warmest |
| August | 64°F (18°C) | 3.2 in | Driest |
| September | 58°F (14°C) | 4.4 in | Wettest |
| October | 50°F (10°C) | 4.4 in | |
| November | 40°F (5°C) | 4.3 in | |
| December | 35°F (2°C) | 4.0 in | Coldest |
Oyonnax has a seasonal temperature swing of 33°F / from 35°F in December to 68°F in July. Total annual precipitation is 45.9 inches, with September being the wettest month (4.4") and August the driest (3.2").