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Weather & Climate in Saint-Romain-en-Jarez, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint-Romain-en-Jarez experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 37°F in January while summers reach 69°F in July. The area gets 258 sunny days per year, above the national average. Annual precipitation totals 37.3 inches. The area receives 10.5 inches of snow annually. The city sits at an elevation of 1,814 feet.
Temperature
37°F Jan (3°C)
69°F Jul (20°C)
| Annual Average | 52.9°F |
| 2% below US avg | |
| January Average | 37°F (3°C) |
| July Average | 69°F (20°C) |
| Sunny Days | 258 days/yr |
Geography
| Elevation | 1,814 ft (553 m) |
| Area | 6.6 sq mi (17.0 km²) |
| Population Density | 144/sq mi |
| Coordinates | 45.5587°N, 4.5355°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
357 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| Jul 15, 1996 | 3 km NE of Chilly, France | M4.5 | 123 km | 5 km |
| Dec 14, 1994 | 7 km SSE of Amancy, France | M4.5 | 150 km | 10 km |
| Mar 12, 2022 | 3 km S of Faverges, France | M4.5 | 137 km | 3 km |
| Jul 23, 1996 | 4 km W of Choisy, France | M4.4 | 124 km | 10 km |
| Aug 3, 2011 | 4 km ESE of Barjac, France | M4.3 | 141 km | 4 km |
| Jan 11, 1999 | 2 km W of Saint-Paul-de-Varces, France | M4.2 | 100 km | 10 km |
| Jan 11, 2006 | 1 km S of Saint-Rambert-en-Bugey, France | M4.1 | 81 km | 5 km |
| Sep 13, 1999 | 1 km NE of Biol, France | M4.0 | 68 km | 2 km |
| Sep 4, 1995 | 5 km SE of Gruffy, France | M3.8 | 125 km | 9 km |
| Sep 4, 1995 | 5 km SE of Gruffy, France | M3.8 | 124 km | 11 km |
| Feb 3, 1994 | 6 km WSW of Yenne, France | M3.8 | 90 km | 22 km |
| Jan 28, 2004 | 2 km ESE of Châbons, France | M3.8 | 73 km | 3 km |
| Aug 19, 2003 | 5 km NNW of Saint-Georges-de-Mons, France | M3.8 | 142 km | 5 km |
| Dec 28, 1992 | 3 km NE of Villebois, France | M3.8 | 80 km | 12 km |
| Feb 28, 2004 | 1 km E of Biol, France | M3.7 | 68 km | 10 km |
| Aug 23, 2003 | 1 km NNW of Saint-Georges-de-Mons, France | M3.7 | 139 km | 10 km |
| Jul 20, 1996 | 1 km NNE of La Balme-de-Sillingy, France | M3.7 | 127 km | 10 km |
| Feb 1, 2008 | 8 km ENE of Saint-Gervais-d'Auvergne, France | M3.6 | 136 km | 3 km |
| Sep 8, 1995 | 1 km NW of Crolles, France | M3.5 | 108 km | 5 km |
| Jul 25, 2002 | 7 km NW of Beaujeu, France | M3.5 | 72 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Nearby Volcanoes
1 volcano within 200 km. Closest: Chaine des Puys (124 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Chaine des Puys | Lava dome(s) | 1,464 m (4,803 ft) | -4040 | 124 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 2.3 in | Coldest |
| February | 38°F (3°C) | 2.1 in | Driest |
| March | 43°F (6°C) | 2.3 in | |
| April | 47°F (8°C) | 2.9 in | |
| May | 56°F (13°C) | 3.6 in | |
| June | 61°F (16°C) | 3.4 in | |
| July | 69°F (20°C) | 2.6 in | Warmest |
| August | 66°F (19°C) | 3.0 in | |
| September | 60°F (15°C) | 3.7 in | Wettest |
| October | 52°F (11°C) | 3.6 in | |
| November | 42°F (6°C) | 3.0 in | |
| December | 38°F (3°C) | 2.4 in |
Saint-Romain-en-Jarez has a seasonal temperature swing of 32°F / from 37°F in January to 69°F in July. Total annual precipitation is 34.9 inches, with September being the wettest month (3.7") and February the driest (2.1").