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Weather & Climate in Trofors, Norway
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Trofors has a cool climate with an average annual temperature of 36°F (2°C). Winters average 21°F in January while summers reach 55°F in July. The area gets 243 sunny days per year, above the national average. Annual precipitation totals 51.5 inches (wetter than the 38-inch national average). The area receives 26.1 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 328 feet.
Temperature
21°F Jan (-6°C)
55°F Jul (13°C)
| Annual Average | 36.3°F |
| 33% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 55°F (13°C) |
| Sunny Days | 243 days/yr |
Geography
| Elevation | 328 ft (100 m) |
| Area | 0.3 sq mi (0.8 km²) |
| Population Density | 2,783/sq mi |
| Coordinates | 65.5334°N, 13.4063°W |
| Timezone | Europe/Oslo |
Precipitation & Snow
Air Quality
Earthquake History
28 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Mar 31, 2001 | 24 km NNW of Hemnesberget, Norway | M3.8 | 98 km | 10 km |
| Aug 3, 1992 | 24 km NNE of Nesna, Norway | M3.6 | 97 km | 10 km |
| May 18, 1992 | 3 km NW of Glomfjord, Norway | M3.5 | 147 km | 10 km |
| Apr 26, 1992 | 4 km NE of Terråk, Norway | M3.3 | 64 km | 10 km |
| Jun 24, 2005 | 31 km NNW of Hemnesberget, Norway | M3.3 | 106 km | 3 km |
| Sep 17, 1992 | northern Norway | M3.3 | 119 km | 10 km |
| Jun 27, 1992 | 15 km WSW of Ørnes, Norway | M3.2 | 142 km | 10 km |
| Apr 16, 2001 | 18 km NW of Hemnesberget, Norway | M3.1 | 92 km | 10 km |
| Apr 18, 1990 | 19 km NE of Mo i Rana, Norway | M3.1 | 110 km | 5 km |
| Oct 18, 1994 | 24 km E of Glomfjord, Norway | M3.0 | 149 km | 10 km |
| Jan 26, 1994 | 2 km ESE of Ørnes, Norway | M3.0 | 149 km | 10 km |
| Feb 25, 1992 | 9 km SW of Glomfjord, Norway | M3.0 | 137 km | 10 km |
| Nov 25, 1992 | 28 km NE of Mo i Rana, Norway | M3.0 | 118 km | 10 km |
| May 5, 1992 | 35 km ENE of Mo i Rana, Norway | M3.0 | 120 km | 10 km |
| Mar 29, 1995 | 20 km NNW of Hemnesberget, Norway | M3.0 | 96 km | 10 km |
| May 21, 2006 | 23 km NNE of Nesna, Norway | M2.9 | 96 km | 5 km |
| May 21, 1992 | 32 km NE of Mo i Rana, Norway | M2.9 | 121 km | 10 km |
| Jun 11, 1994 | northern Norway | M2.8 | 106 km | 5 km |
| Jun 23, 1993 | 44 km ENE of Mo i Rana, Norway | M2.8 | 123 km | 10 km |
| Feb 20, 1992 | 21 km E of Mo i Rana, Norway | M2.8 | 102 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 2.0 m (7 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1979 | NORTHERN NORWAY | Meteorological | 2.0 m | — | 68 km |
| 1952 | MID-NORWAY | Meteorological | 2.0 m | — | 86 km |
| 1940 | NORTHERN NORWAY | Meteorological | — | — | 40 km |
| 1819 | NORWAY: RANA REGION: LUROY | Earthquake | — | — | 101 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 5.4 in | Coldest |
| February | 21°F (-6°C) | 4.2 in | |
| March | 26°F (-3°C) | 3.7 in | |
| April | 33°F (0°C) | 2.7 in | |
| May | 42°F (6°C) | 2.6 in | Driest |
| June | 51°F (10°C) | 3.2 in | |
| July | 55°F (13°C) | 3.8 in | Warmest |
| August | 53°F (12°C) | 4.2 in | |
| September | 46°F (8°C) | 5.7 in | |
| October | 37°F (3°C) | 6.0 in | Wettest |
| November | 29°F (-2°C) | 4.8 in | |
| December | 23°F (-5°C) | 5.2 in |
Trofors has a seasonal temperature swing of 34°F / from 21°F in January to 55°F in July. Total annual precipitation is 51.5 inches, with October being the wettest month (6.0") and May the driest (2.6").