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Weather & Climate in Chalo-Saint-Mars, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chalo-Saint-Mars experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 42°F in January while summers reach 67°F in July. The area gets 231 sunny days per year, above the national average. Annual precipitation totals 32.8 inches. The area receives 2.1 inches of snow annually. The city sits at an elevation of 308 feet.
Temperature
42°F Jan (5°C)
67°F Jul (20°C)
| Annual Average | 54.6°F |
| 1% above US avg | |
| January Average | 42°F (5°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 231 days/yr |
Geography
| Elevation | 308 ft (94 m) |
| Area | 11.1 sq mi (28.7 km²) |
| Population Density | 105/sq mi |
| Coordinates | 48.4233°N, 2.0649°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
22 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Jan 25, 1993 | 7 km SSE of Souesmes, France | M3.8 | 115 km | 18 km |
| Mar 6, 1999 | 2 km W of Vienne-en-Val, France | M3.3 | 69 km | 4 km |
| Aug 29, 1992 | 2 km ESE of Radon, France | M3.2 | 142 km | 10 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 147 km | 7 km |
| Apr 1, 1994 | France | M3.1 | 148 km | 5 km |
| Feb 22, 1999 | France | M3.1 | 95 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 142 km | 10 km |
| Dec 9, 1992 | 7 km NNE of Neuvy-le-Roi, France | M3.0 | 136 km | 10 km |
| Jan 20, 1992 | 9 km NNW of Château-Renault, France | M3.0 | 124 km | 10 km |
| Jun 7, 2008 | 3 km ENE of Cangey, France | M3.0 | 128 km | 3 km |
| May 21, 2003 | France | M2.7 | 135 km | 3 km |
| Aug 14, 1998 | 14 km NNW of Clamecy, France | M2.7 | 138 km | 2 km |
| Dec 24, 1997 | 8 km WSW of Savigny-en-Sancerre, France | M2.7 | 124 km | 5 km |
| May 13, 2005 | 7 km WSW of Vermenton, France | M2.7 | 146 km | 4 km |
| Jan 30, 2004 | 5 km ESE of Valençay, France | M2.7 | 146 km | 4 km |
| Jan 5, 1994 | 0 km SSE of Saint-Martin-de-Boscherville, France | M2.7 | 138 km | 10 km |
| Jan 26, 2000 | 3 km N of Neuvy-sur-Barangeon, France | M2.6 | 121 km | 12 km |
| Nov 3, 2000 | 5 km ESE of Ouzouer-le-Marché, France | M2.6 | 69 km | 5 km |
| May 8, 2004 | 4 km N of Nouzilly, France | M2.6 | 135 km | 2 km |
| Jan 12, 1999 | 5 km ESE of Ouzouer-le-Marché, France | M2.5 | 68 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 2.0 in | |
| February | 39°F (4°C) | 1.9 in | Coldest |
| March | 44°F (7°C) | 1.9 in | |
| April | 49°F (9°C) | 1.9 in | |
| May | 56°F (13°C) | 2.4 in | Wettest |
| June | 61°F (16°C) | 1.9 in | |
| July | 67°F (20°C) | 2.2 in | Warmest |
| August | 66°F (19°C) | 1.7 in | Driest |
| September | 60°F (15°C) | 2.2 in | |
| October | 52°F (11°C) | 2.3 in | |
| November | 44°F (7°C) | 2.1 in | |
| December | 40°F (4°C) | 2.2 in |
Chalo-Saint-Mars has a seasonal temperature swing of 28°F / from 39°F in February to 67°F in July. Total annual precipitation is 24.8 inches, with May being the wettest month (2.4") and August the driest (1.7").