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Weather & Climate in Saint-Martin-Longueau, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint-Martin-Longueau experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 41°F in January while summers reach 66°F in July. The area gets 230 sunny days per year, above the national average. Annual precipitation totals 33.8 inches. The area receives 1.2 inches of snow annually. The city sits at an elevation of 115 feet.
Temperature
41°F Jan (5°C)
66°F Jul (19°C)
| Annual Average | 53.6°F |
| 1% below US avg | |
| January Average | 41°F (5°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 230 days/yr |
Geography
| Elevation | 115 ft (35 m) |
| Area | 9.6 sq mi (24.9 km²) |
| Population Density | 154/sq mi |
| Coordinates | 49.3428°N, 2.6028°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
15 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.
| Aug 29, 1992 | 4 km SSE of Cousolre, France | M4.1 | 148 km | 18 km |
| Aug 26, 1992 | 2 km WSW of Rance, Belgium | M3.9 | 148 km | 10 km |
| Jul 20, 1994 | 2 km N of Rousies, France | M3.5 | 146 km | 5 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 40 km | 7 km |
| Jul 14, 2008 | 1 km SW of Boussu, Belgium | M3.2 | 147 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 62 km | 10 km |
| Feb 27, 2005 | 1 km NW of Libercourt, France | M3.1 | 131 km | 4 km |
| May 1, 1997 | 21 km W of Fort-Mahon-Plage, France | M3.0 | 146 km | 5 km |
| Jul 23, 1992 | 3 km ENE of Sivry, Belgium | M3.0 | 150 km | 10 km |
| Nov 29, 1992 | 1 km ENE of Sivry, Belgium | M2.8 | 148 km | 8 km |
| Aug 29, 1992 | 2 km W of Rance, Belgium | M2.8 | 148 km | 10 km |
| Jan 5, 1994 | 0 km SSE of Saint-Martin-de-Boscherville, France | M2.7 | 119 km | 10 km |
| Dec 13, 1992 | 1 km SW of La Mailleraye-sur-Seine, France | M2.5 | 134 km | 10 km |
| Jun 11, 1997 | 4 km NE of Voves, France | M2.5 | 135 km | 10 km |
| Jun 22, 1999 | 5 km NNE of Oisemont, France | M2.5 | 93 km | 2 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 2.1 in | |
| February | 39°F (4°C) | 1.8 in | Coldest, Driest |
| March | 44°F (7°C) | 1.9 in | |
| April | 48°F (9°C) | 1.9 in | |
| May | 55°F (13°C) | 2.3 in | |
| June | 60°F (16°C) | 2.4 in | |
| July | 66°F (19°C) | 2.1 in | Warmest |
| August | 64°F (18°C) | 1.9 in | |
| September | 59°F (15°C) | 2.2 in | |
| October | 52°F (11°C) | 2.3 in | |
| November | 44°F (6°C) | 2.2 in | |
| December | 40°F (4°C) | 2.4 in | Wettest |
Saint-Martin-Longueau has a seasonal temperature swing of 27°F / from 39°F in February to 66°F in July. Total annual precipitation is 25.4 inches, with December being the wettest month (2.4") and February the driest (1.8").