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Weather & Climate in Sannois, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sannois 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 351 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 | 351 ft (107 m) |
| Area | 1.9 sq mi (4.8 km²) |
| Population Density | 14,524/sq mi |
| Coordinates | 48.9667°N, 2.2500°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
10 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 | 130 km | 4 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 85 km | 7 km |
| Feb 22, 1999 | France | M3.1 | 130 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 84 km | 10 km |
| Jan 5, 1994 | 0 km SSE of Saint-Martin-de-Boscherville, France | M2.7 | 107 km | 10 km |
| Nov 3, 2000 | 5 km ESE of Ouzouer-le-Marché, France | M2.6 | 129 km | 5 km |
| Dec 13, 1992 | 1 km SW of La Mailleraye-sur-Seine, France | M2.5 | 122 km | 10 km |
| Jan 12, 1999 | 5 km ESE of Ouzouer-le-Marché, France | M2.5 | 128 km | 18 km |
| Jun 11, 1997 | 4 km NE of Voves, France | M2.5 | 85 km | 10 km |
| Jun 22, 1999 | 5 km NNE of Oisemont, France | M2.5 | 119 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 | 41°F (5°C) | 1.8 in | Coldest |
| March | 46°F (8°C) | 1.9 in | |
| April | 51°F (10°C) | 2.1 in | |
| May | 58°F (14°C) | 2.4 in | Wettest |
| June | 63°F (17°C) | 2.1 in | |
| July | 67°F (20°C) | 2.3 in | Warmest |
| August | 67°F (20°C) | 1.7 in | Driest |
| September | 61°F (16°C) | 2.1 in | |
| October | 54°F (12°C) | 2.2 in | |
| November | 46°F (8°C) | 2.0 in | |
| December | 42°F (5°C) | 2.3 in |
Sannois has a seasonal temperature swing of 26°F / from 41°F in February to 67°F in July. Total annual precipitation is 24.9 inches, with May being the wettest month (2.4") and August the driest (1.7").