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Weather & Climate in Hallencourt, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hallencourt experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 42°F in January while summers reach 65°F in July. The area gets 228 sunny days per year, above the national average. Annual precipitation totals 40.0 inches. The area receives 1.1 inches of snow annually. The city sits at an elevation of 371 feet.
Temperature
42°F Jan (6°C)
65°F Jul (18°C)
| Annual Average | 53.6°F |
| 1% below US avg | |
| January Average | 42°F (6°C) |
| July Average | 65°F (18°C) |
| Sunny Days | 228 days/yr |
Geography
| Elevation | 371 ft (113 m) |
| Area | 9.6 sq mi (24.9 km²) |
| Population Density | 143/sq mi |
| Coordinates | 49.9920°N, 1.8765°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
33 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 | 115 km | 1 km |
| Apr 28, 2007 | 1 km WNW of Lympne, United Kingdom | M4.6 | 136 km | 10 km |
| Dec 14, 1991 | 3 km SSE of Longfossé, France | M4.0 | 71 km | 10 km |
| Jan 27, 1998 | 27 km W of Le Touquet-Paris-Plage, France | M3.8 | 74 km | 2 km |
| May 22, 2015 | 3 km SSE of Ramsgate, United Kingdom | M3.7 | 149 km | 12 km |
| Mar 3, 2009 | 1 km ENE of Hawkinge, United Kingdom | M3.5 | 134 km | 4 km |
| Jan 27, 1992 | 6 km SSE of Longfossé, France | M3.5 | 68 km | 10 km |
| Sep 24, 2003 | 22 km WNW of Cauville-sur-Mer, France | M3.5 | 148 km | 17 km |
| Jun 16, 1998 | 18 km NNW of Yport, France | M3.3 | 122 km | 5 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 61 km | 7 km |
| Jul 14, 2008 | 1 km SW of Boussu, Belgium | M3.2 | 144 km | 4 km |
| Feb 13, 1997 | 26 km W of Le Touquet-Paris-Plage, France | M3.2 | 75 km | 5 km |
| Oct 19, 2002 | 9 km NW of Trouville-sur-Mer, France | M3.2 | 149 km | 10 km |
| Feb 27, 2005 | 1 km NW of Libercourt, France | M3.1 | 97 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 33 km | 10 km |
| May 4, 1990 | 0 km NE of Coquelles, France | M3.1 | 105 km | 10 km |
| Jul 2, 2001 | 3 km NNE of Oostduinkerke, Belgium | M3.1 | 140 km | 5 km |
| May 1, 1997 | 21 km W of Fort-Mahon-Plage, France | M3.0 | 58 km | 5 km |
| Nov 25, 1998 | 26 km N of Grand-Fort-Philippe, France | M3.0 | 139 km | 10 km |
| Aug 26, 2002 | 40 km NNW of Étretat, France | M3.0 | 135 km | 4 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 | — | 117 km |
| 1911 | FOLKSTONE, ENGLAND | Meteorological | 0.9 m | — | 131 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (6°C) | 2.4 in | |
| February | 39°F (4°C) | 2.0 in | Coldest, Driest |
| March | 44°F (6°C) | 2.1 in | |
| April | 47°F (8°C) | 2.1 in | |
| May | 54°F (12°C) | 2.3 in | |
| June | 59°F (15°C) | 2.6 in | |
| July | 65°F (18°C) | 2.1 in | Warmest |
| August | 63°F (17°C) | 2.2 in | |
| September | 58°F (15°C) | 2.8 in | |
| October | 52°F (11°C) | 2.8 in | |
| November | 44°F (7°C) | 3.0 in | Wettest |
| December | 40°F (5°C) | 3.0 in |
Hallencourt has a seasonal temperature swing of 26°F / from 39°F in February to 65°F in July. Total annual precipitation is 29.2 inches, with November being the wettest month (3.0") and February the driest (2.0").