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Weather & Climate in Saint-Germain-lès-Arpajon, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint-Germain-lès-Arpajon experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 42°F in January while summers reach 68°F in July. The area gets 238 sunny days per year, above the national average. Annual precipitation totals 40.3 inches. The area receives 1.7 inches of snow annually. The city sits at an elevation of 157 feet.
Temperature
42°F Jan (6°C)
68°F Jul (20°C)
| Annual Average | 55.2°F |
| 2% above US avg | |
| January Average | 42°F (6°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 238 days/yr |
Geography
| Elevation | 157 ft (48 m) |
| Area | 3.9 sq mi (10.0 km²) |
| Population Density | 2,258/sq mi |
| Coordinates | 48.5973°N, 2.2648°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
16 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 | 134 km | 18 km |
| Mar 6, 1999 | 2 km W of Vienne-en-Val, France | M3.3 | 90 km | 4 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 125 km | 7 km |
| Feb 22, 1999 | France | M3.1 | 113 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 125 km | 10 km |
| Jan 20, 1992 | 9 km NNW of Château-Renault, France | M3.0 | 148 km | 10 km |
| Jan 5, 1994 | 0 km SSE of Saint-Martin-de-Boscherville, France | M2.7 | 133 km | 10 km |
| Dec 24, 1997 | 8 km WSW of Savigny-en-Sancerre, France | M2.7 | 137 km | 5 km |
| Aug 14, 1998 | 14 km NNW of Clamecy, France | M2.7 | 143 km | 2 km |
| May 21, 2003 | France | M2.7 | 136 km | 3 km |
| May 13, 2005 | 7 km WSW of Vermenton, France | M2.7 | 147 km | 4 km |
| Nov 3, 2000 | 5 km ESE of Ouzouer-le-Marché, France | M2.6 | 93 km | 5 km |
| Jan 26, 2000 | 3 km N of Neuvy-sur-Barangeon, France | M2.6 | 139 km | 12 km |
| Dec 13, 1992 | 1 km SW of La Mailleraye-sur-Seine, France | M2.5 | 147 km | 10 km |
| Jan 12, 1999 | 5 km ESE of Ouzouer-le-Marché, France | M2.5 | 92 km | 18 km |
| Jun 11, 1997 | 4 km NE of Voves, France | M2.5 | 55 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (6°C) | 2.0 in | |
| February | 39°F (4°C) | 1.9 in | Coldest |
| March | 45°F (7°C) | 1.9 in | |
| April | 49°F (10°C) | 2.0 in | |
| May | 56°F (14°C) | 2.4 in | Wettest |
| June | 61°F (16°C) | 2.0 in | |
| July | 68°F (20°C) | 2.2 in | Warmest |
| August | 66°F (19°C) | 1.7 in | Driest |
| September | 60°F (16°C) | 2.1 in | |
| October | 53°F (11°C) | 2.2 in | |
| November | 44°F (7°C) | 2.1 in | |
| December | 40°F (5°C) | 2.2 in |
Saint-Germain-lès-Arpajon has a seasonal temperature swing of 29°F / from 39°F in February to 68°F in July. Total annual precipitation is 24.6 inches, with May being the wettest month (2.4") and August the driest (1.7").