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Weather & Climate in Sillans, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sillans experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 38°F in January while summers reach 71°F in July. The area gets 269 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 45.4 inches. The area receives 7.8 inches of snow annually. The city sits at an elevation of 1,322 feet.
Temperature
38°F Jan (3°C)
71°F Jul (22°C)
| Annual Average | 54.1°F |
| 0% below US avg | |
| January Average | 38°F (3°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 269 days/yr |
Geography
| Elevation | 1,322 ft (403 m) |
| Area | 6.0 sq mi (15.5 km²) |
| Population Density | 255/sq mi |
| Coordinates | 45.3426°N, 5.3886°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
868 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Apr 7, 2014 | 7 km SE of Guillestre, France | M4.8 | 132 km | 8 km |
| Oct 31, 1997 | 12 km SE of Seyne-les-Alpes, France | M4.8 | 146 km | 10 km |
| Feb 11, 1991 | 5 km ESE of Briançon, France | M4.6 | 116 km | 14 km |
| Mar 12, 2022 | 3 km S of Faverges, France | M4.5 | 81 km | 3 km |
| Mar 2, 2012 | 8 km NNW of Jausiers, France | M4.5 | 141 km | 10 km |
| Dec 14, 1994 | 7 km SSE of Amancy, France | M4.5 | 106 km | 10 km |
| Jul 15, 1996 | 3 km NE of Chilly, France | M4.5 | 88 km | 5 km |
| Jul 23, 1996 | 4 km W of Choisy, France | M4.4 | 87 km | 10 km |
| Aug 3, 2011 | 4 km ESE of Barjac, France | M4.3 | 140 km | 4 km |
| Jun 30, 2010 | 3 km NW of Saint-Martin-de-Belleville, France | M4.3 | 85 km | 2 km |
| Jul 30, 2016 | 0 km SSW of Fleccia-Chianavasso, Italy | M4.2 | 150 km | 11 km |
| Feb 26, 2012 | 13 km ESE of Embrun, France | M4.2 | 134 km | 2 km |
| Jan 11, 1999 | 2 km W of Saint-Paul-de-Varces, France | M4.2 | 34 km | 10 km |
| Jan 7, 2013 | 7 km SE of Saint-Martin-de-Queyrières, France | M4.1 | 117 km | 7 km |
| Feb 27, 2012 | 8 km NNW of Jausiers, France | M4.1 | 140 km | 0 km |
| Feb 18, 1996 | 13 km ESE of Saint-Martin-de-Queyrières, France | M4.1 | 124 km | 5 km |
| May 16, 2023 | 16 km W of Pleyne, Italy | M4.1 | 142 km | 8 km |
| Jul 14, 2014 | 8 km NNW of Jausiers, France | M4.1 | 140 km | 2 km |
| May 30, 2001 | 6 km N of Beaufort, France | M4.1 | 105 km | 2 km |
| Jan 11, 2006 | 1 km S of Saint-Rambert-en-Bugey, France | M4.1 | 65 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Nearby Volcanoes
1 volcano within 200 km. Closest: Chaine des Puys (194 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Chaine des Puys | Lava dome(s) | 1,464 m (4,803 ft) | -4040 | 194 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 3.0 in | |
| February | 38°F (3°C) | 2.8 in | |
| March | 43°F (6°C) | 3.3 in | |
| April | 48°F (9°C) | 3.6 in | |
| May | 56°F (14°C) | 4.1 in | |
| June | 62°F (17°C) | 3.7 in | |
| July | 71°F (22°C) | 2.7 in | Warmest, Driest |
| August | 67°F (19°C) | 2.8 in | |
| September | 60°F (16°C) | 4.3 in | Wettest |
| October | 52°F (11°C) | 4.3 in | |
| November | 42°F (6°C) | 3.9 in | |
| December | 37°F (3°C) | 3.1 in | Coldest |
Sillans has a seasonal temperature swing of 34°F / from 37°F in December to 71°F in July. Total annual precipitation is 41.5 inches, with September being the wettest month (4.3") and July the driest (2.7").