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Weather & Climate in Mont-Saint-Aignan, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mont-Saint-Aignan experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 42°F in January while summers reach 64°F in July. The area gets 230 sunny days per year, above the national average. Annual precipitation totals 37.0 inches. The area receives 1.4 inches of snow annually. The city sits at an elevation of 420 feet.
Temperature
42°F Jan (6°C)
64°F Jul (18°C)
| Annual Average | 53.6°F |
| 1% below US avg | |
| January Average | 42°F (6°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 230 days/yr |
Geography
| Elevation | 420 ft (128 m) |
| Area | 3.1 sq mi (8.0 km²) |
| Population Density | 7,517/sq mi |
| Coordinates | 49.4631°N, 1.0936°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
36 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Oct 6, 1999 | 34 km NNW of Fécamp, France | M4.6 | 89 km | 1 km |
| Nov 30, 1994 | 17 km N of Courseulles-sur-Mer, France | M4.1 | 111 km | 6 km |
| Dec 14, 1991 | 3 km SSE of Longfossé, France | M4.0 | 140 km | 10 km |
| Jan 27, 1998 | 27 km W of Le Touquet-Paris-Plage, France | M3.8 | 116 km | 2 km |
| Nov 2, 1997 | 7 km NW of Villers-sur-Mer, France | M3.7 | 85 km | 10 km |
| Sep 23, 2003 | 41 km WNW of Étretat, France | M3.6 | 111 km | 10 km |
| Jan 27, 1992 | 6 km SSE of Longfossé, France | M3.5 | 138 km | 10 km |
| Aug 8, 1998 | 1 km SE of Cairon, France | M3.5 | 114 km | 10 km |
| Aug 1, 2007 | 2 km SSE of Blonville-sur-Mer, France | M3.5 | 78 km | 5 km |
| Sep 24, 2003 | 22 km WNW of Cauville-sur-Mer, France | M3.5 | 93 km | 17 km |
| Jun 16, 1998 | 18 km NNW of Yport, France | M3.3 | 80 km | 5 km |
| Aug 29, 1992 | 2 km ESE of Radon, France | M3.2 | 128 km | 10 km |
| Oct 19, 2002 | 9 km NW of Trouville-sur-Mer, France | M3.2 | 79 km | 10 km |
| Feb 13, 1997 | 26 km W of Le Touquet-Paris-Plage, France | M3.2 | 118 km | 5 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 112 km | 7 km |
| Feb 22, 1999 | France | M3.1 | 131 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 67 km | 10 km |
| Aug 26, 2002 | 40 km NNW of Étretat, France | M3.0 | 103 km | 4 km |
| May 1, 1997 | 21 km W of Fort-Mahon-Plage, France | M3.0 | 97 km | 5 km |
| Nov 12, 1992 | 5 km NW of Cabourg, France | M2.8 | 92 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) | 2.6 in | |
| February | 41°F (5°C) | 2.2 in | Coldest |
| March | 45°F (7°C) | 2.1 in | |
| April | 49°F (9°C) | 1.9 in | |
| May | 55°F (13°C) | 2.4 in | |
| June | 60°F (16°C) | 2.2 in | |
| July | 64°F (18°C) | 1.9 in | |
| August | 64°F (18°C) | 1.9 in | Warmest, Driest |
| September | 59°F (15°C) | 2.5 in | |
| October | 53°F (12°C) | 2.8 in | |
| November | 46°F (8°C) | 3.0 in | |
| December | 42°F (5°C) | 3.0 in | Wettest |
Mont-Saint-Aignan has a seasonal temperature swing of 23°F / from 41°F in February to 64°F in August. Total annual precipitation is 28.5 inches, with December being the wettest month (3.0") and August the driest (1.9").