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Weather & Climate in Fosser, Norway
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Fosser has a cool climate with an average annual temperature of 41°F (5°C). Winters average 25°F in January while summers reach 60°F in July. The area gets 278 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 31.8 inches. The area receives 11.4 inches of snow annually. The city sits at an elevation of 453 feet.
Temperature
25°F Jan (-4°C)
60°F Jul (16°C)
| Annual Average | 41.1°F |
| 24% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 60°F (16°C) |
| Sunny Days | 278 days/yr |
Geography
| Elevation | 453 ft (138 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 2,063/sq mi |
| Coordinates | 59.8198°N, 11.4866°W |
| Timezone | Europe/Oslo |
Precipitation & Snow
Air Quality
Earthquake History
17 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Feb 19, 1992 | 5 km SE of Fredrikstad, Norway | M3.8 | 75 km | 10 km |
| Nov 19, 1994 | 0 km WNW of Jessheim, Norway | M3.5 | 40 km | 10 km |
| Nov 12, 1993 | 2 km SE of Åmotfors, Sweden | M3.4 | 51 km | 10 km |
| Apr 7, 2004 | 11 km N of Sand, Norway | M3.4 | 75 km | 23 km |
| Nov 29, 2000 | 9 km E of Strömstad, Sweden | M3.4 | 98 km | 10 km |
| Nov 27, 1993 | 4 km SW of Sand, Norway | M3.1 | 61 km | 10 km |
| May 25, 2008 | 4 km WSW of Åneby, Norway | M2.9 | 48 km | 15 km |
| Sep 28, 1993 | 44 km WSW of Grebbestad, Sweden | M2.9 | 148 km | 10 km |
| Jun 30, 1992 | 9 km NNW of Elverum, Norway | M2.8 | 127 km | 10 km |
| Aug 22, 1994 | 21 km S of Reinsvoll, Norway | M2.7 | 88 km | 10 km |
| Nov 19, 1994 | 7 km NW of Jessheim, Norway | M2.7 | 46 km | 10 km |
| Nov 21, 1994 | 6 km NNW of Jessheim, Norway | M2.7 | 46 km | 10 km |
| Aug 15, 1991 | 7 km ESE of Stavern, Norway | M2.7 | 120 km | 10 km |
| Aug 1, 1994 | 30 km N of Noresund, Norway | M2.7 | 124 km | 5 km |
| Dec 12, 1994 | 8 km S of Rotnes, Norway | M2.6 | 40 km | 5 km |
| Feb 1, 1991 | 5 km SSE of Melsomvik, Norway | M2.6 | 96 km | 10 km |
| Jan 29, 2005 | 7 km NNE of Hvittingfoss, Norway | M2.6 | 85 km | 15 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 |
| 1966 | EASTERN NORWAY | Meteorological | 6.0 m | — | 54 km |
| 1969 | NORSALV RIVER | Meteorological | 5.0 m | — | 123 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 2.2 in | |
| February | 24°F (-4°C) | 1.5 in | Coldest, Driest |
| March | 31°F (-1°C) | 1.9 in | |
| April | 38°F (4°C) | 1.8 in | |
| May | 50°F (10°C) | 2.0 in | |
| June | 56°F (14°C) | 3.1 in | |
| July | 60°F (16°C) | 3.1 in | Warmest |
| August | 58°F (14°C) | 3.3 in | |
| September | 50°F (10°C) | 3.5 in | |
| October | 42°F (5°C) | 3.7 in | Wettest |
| November | 33°F (0°C) | 3.3 in | |
| December | 27°F (-3°C) | 2.5 in |
Fosser has a seasonal temperature swing of 36°F / from 24°F in February to 60°F in July. Total annual precipitation is 31.8 inches, with October being the wettest month (3.7") and February the driest (1.5").