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Weather & Climate in Boissy-Saint-Léger, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Boissy-Saint-Léger 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 226 sunny days per year, above the national average. Annual precipitation totals 39.4 inches. The area receives 1.3 inches of snow annually. The city sits at an elevation of 292 feet.
Temperature
42°F Jan (5°C)
67°F Jul (20°C)
| Annual Average | 54.5°F |
| 1% above US avg | |
| January Average | 42°F (5°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 226 days/yr |
Geography
| Elevation | 292 ft (89 m) |
| Area | 4.7 sq mi (12.1 km²) |
| Population Density | 3,385/sq mi |
| Coordinates | 48.7515°N, 2.5116°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
12 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.3.
| Mar 6, 1999 | 2 km W of Vienne-en-Val, France | M3.3 | 110 km | 4 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 106 km | 7 km |
| Feb 22, 1999 | France | M3.1 | 136 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 113 km | 10 km |
| Jan 5, 1994 | 0 km SSE of Saint-Martin-de-Boscherville, France | M2.7 | 136 km | 10 km |
| Aug 14, 1998 | 14 km NNW of Clamecy, France | M2.7 | 148 km | 2 km |
| May 21, 2003 | France | M2.7 | 137 km | 3 km |
| May 13, 2005 | 7 km WSW of Vermenton, France | M2.7 | 149 km | 4 km |
| Nov 3, 2000 | 5 km ESE of Ouzouer-le-Marché, France | M2.6 | 118 km | 5 km |
| Jan 12, 1999 | 5 km ESE of Ouzouer-le-Marché, France | M2.5 | 116 km | 18 km |
| Jun 11, 1997 | 4 km NE of Voves, France | M2.5 | 80 km | 10 km |
| Jun 22, 1999 | 5 km NNE of Oisemont, France | M2.5 | 148 km | 2 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 2.1 in | |
| February | 40°F (4°C) | 1.9 in | Coldest |
| March | 45°F (7°C) | 2.0 in | |
| April | 49°F (9°C) | 1.9 in | |
| May | 56°F (14°C) | 2.4 in | Wettest |
| June | 61°F (16°C) | 2.2 in | |
| July | 67°F (20°C) | 2.2 in | Warmest |
| August | 66°F (19°C) | 1.8 in | Driest |
| September | 60°F (15°C) | 2.1 in | |
| October | 53°F (11°C) | 2.4 in | |
| November | 44°F (7°C) | 2.1 in | |
| December | 40°F (5°C) | 2.2 in |
Boissy-Saint-Léger has a seasonal temperature swing of 28°F / from 40°F in February to 67°F in July. Total annual precipitation is 25.1 inches, with May being the wettest month (2.4") and August the driest (1.8").