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Weather & Climate in Hergnies, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hergnies 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 213 sunny days per year. Annual precipitation totals 40.0 inches. The area receives 4.0 inches of snow annually. The city sits at an elevation of 75 feet.
Temperature
42°F Jan (5°C)
65°F Jul (19°C)
| Annual Average | 53.7°F |
| 1% below US avg | |
| January Average | 42°F (5°C) |
| July Average | 65°F (19°C) |
| Sunny Days | 213 days/yr |
Geography
| Elevation | 75 ft (23 m) |
| Area | 4.3 sq mi (11.1 km²) |
| Population Density | 920/sq mi |
| Coordinates | 50.4729°N, 3.5261°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
42 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 | 27 km | 20 km |
| Aug 29, 1992 | 4 km SSE of Cousolre, France | M4.1 | 54 km | 18 km |
| Dec 14, 1991 | 3 km SSE of Longfossé, France | M4.0 | 121 km | 10 km |
| Aug 26, 1992 | 2 km WSW of Rance, Belgium | M3.9 | 64 km | 10 km |
| Jul 13, 2008 | 0 km ESE of Court-Saint-Étienne, Belgium | M3.8 | 76 km | 4 km |
| Apr 19, 1990 | 0 km SSW of Flémalle-Haute, Belgium | M3.6 | 136 km | 10 km |
| Jan 27, 1992 | 6 km SSE of Longfossé, France | M3.5 | 120 km | 10 km |
| Jul 20, 1994 | 2 km N of Rousies, France | M3.5 | 39 km | 5 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 108 km | 7 km |
| Aug 10, 1991 | 1 km S of Vottem, Belgium | M3.2 | 146 km | 10 km |
| Jul 14, 2008 | 1 km SW of Boussu, Belgium | M3.2 | 19 km | 4 km |
| Jul 2, 2001 | 3 km NNE of Oostduinkerke, Belgium | M3.1 | 94 km | 5 km |
| May 10, 1990 | 1 km W of Modave, Belgium | M3.1 | 123 km | 11 km |
| Jul 20, 1994 | 1 km NE of Quévy-le-Petit, Belgium | M3.1 | 32 km | 5 km |
| Feb 27, 2005 | 1 km NW of Libercourt, France | M3.1 | 37 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 142 km | 10 km |
| May 4, 1990 | 0 km NE of Coquelles, France | M3.1 | 132 km | 10 km |
| Mar 30, 1995 | 1 km NW of Bressoux, Belgium | M3.0 | 147 km | 10 km |
| Jul 23, 1992 | 3 km ENE of Sivry, Belgium | M3.0 | 60 km | 10 km |
| Nov 25, 1998 | 26 km N of Grand-Fort-Philippe, France | M3.0 | 132 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami 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 | — | 148 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 2.3 in | |
| February | 39°F (4°C) | 1.9 in | Coldest, Driest |
| March | 44°F (7°C) | 2.5 in | |
| April | 48°F (9°C) | 2.0 in | |
| May | 55°F (13°C) | 2.5 in | |
| June | 60°F (16°C) | 2.8 in | |
| July | 65°F (19°C) | 2.6 in | Warmest |
| August | 64°F (18°C) | 2.1 in | |
| September | 58°F (15°C) | 2.3 in | |
| October | 52°F (11°C) | 2.7 in | |
| November | 44°F (6°C) | 2.9 in | Wettest |
| December | 40°F (4°C) | 2.7 in |
Hergnies has a seasonal temperature swing of 27°F / from 39°F in February to 65°F in July. Total annual precipitation is 29.2 inches, with November being the wettest month (2.9") and February the driest (1.9").