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Weather & Climate in Hérissart, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hérissart experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 41°F in January while summers reach 65°F in July. The area gets 224 sunny days per year, above the national average. Annual precipitation totals 39.2 inches. The area receives 1.9 inches of snow annually. The city sits at an elevation of 456 feet.
Temperature
41°F Jan (5°C)
65°F Jul (18°C)
| Annual Average | 53.1°F |
| 2% below US avg | |
| January Average | 41°F (5°C) |
| July Average | 65°F (18°C) |
| Sunny Days | 224 days/yr |
Geography
| Elevation | 456 ft (139 m) |
| Area | 2.9 sq mi (7.4 km²) |
| Population Density | 177/sq mi |
| Coordinates | 50.0269°N, 2.4162°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
34 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.3.
| Jun 20, 1995 | 1 km N of Ghlin, Belgium | M4.3 | 117 km | 20 km |
| Aug 29, 1992 | 4 km SSE of Cousolre, France | M4.1 | 127 km | 18 km |
| Dec 14, 1991 | 3 km SSE of Longfossé, France | M4.0 | 79 km | 10 km |
| Aug 26, 1992 | 2 km WSW of Rance, Belgium | M3.9 | 132 km | 10 km |
| Jan 27, 1998 | 27 km W of Le Touquet-Paris-Plage, France | M3.8 | 101 km | 2 km |
| Jul 20, 1994 | 2 km N of Rousies, France | M3.5 | 117 km | 5 km |
| Jan 27, 1992 | 6 km SSE of Longfossé, France | M3.5 | 76 km | 10 km |
| Mar 3, 2009 | 1 km ENE of Hawkinge, United Kingdom | M3.5 | 149 km | 4 km |
| Feb 13, 1997 | 26 km W of Le Touquet-Paris-Plage, France | M3.2 | 101 km | 5 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 39 km | 7 km |
| Jul 14, 2008 | 1 km SW of Boussu, Belgium | M3.2 | 107 km | 4 km |
| Feb 27, 2005 | 1 km NW of Libercourt, France | M3.1 | 67 km | 4 km |
| May 4, 1990 | 0 km NE of Coquelles, France | M3.1 | 110 km | 10 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 49 km | 10 km |
| Jul 20, 1994 | 1 km NE of Quévy-le-Petit, Belgium | M3.1 | 116 km | 5 km |
| Jul 2, 2001 | 3 km NNE of Oostduinkerke, Belgium | M3.1 | 126 km | 5 km |
| Jul 23, 1992 | 3 km ENE of Sivry, Belgium | M3.0 | 131 km | 10 km |
| May 1, 1997 | 21 km W of Fort-Mahon-Plage, France | M3.0 | 89 km | 5 km |
| Nov 25, 1998 | 26 km N of Grand-Fort-Philippe, France | M3.0 | 136 km | 10 km |
| Aug 23, 1994 | 2 km E of Dikkebus, Belgium | M2.9 | 94 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1858 | NORTH SEA | Unknown | 6.0 m | — | 125 km |
| 1911 | FOLKSTONE, ENGLAND | Meteorological | 0.9 m | — | 145 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 2.2 in | |
| February | 38°F (4°C) | 1.9 in | Coldest, Driest |
| March | 43°F (6°C) | 2.0 in | |
| April | 47°F (8°C) | 1.9 in | |
| May | 54°F (12°C) | 2.3 in | |
| June | 58°F (15°C) | 2.5 in | |
| July | 65°F (18°C) | 2.2 in | Warmest |
| August | 63°F (17°C) | 2.1 in | |
| September | 58°F (14°C) | 2.6 in | |
| October | 51°F (11°C) | 2.6 in | |
| November | 44°F (6°C) | 2.7 in | Wettest |
| December | 40°F (4°C) | 2.7 in |
Hérissart has a seasonal temperature swing of 27°F / from 38°F in February to 65°F in July. Total annual precipitation is 27.6 inches, with November being the wettest month (2.7") and February the driest (1.9").