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Weather & Climate in Grong, Norway
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grong has a cool climate with an average annual temperature of 38°F (3°C). Winters average 23°F in January while summers reach 56°F in July. The area gets 243 sunny days per year, above the national average. Annual precipitation totals 51.1 inches (wetter than the 38-inch national average). The area receives 25.5 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 131 feet.
Temperature
23°F Jan (-5°C)
56°F Jul (13°C)
| Annual Average | 37.7°F |
| 30% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 56°F (13°C) |
| Sunny Days | 243 days/yr |
Geography
| Elevation | 131 ft (40 m) |
| Area | 0.3 sq mi (0.9 km²) |
| Population Density | 3,227/sq mi |
| Coordinates | 64.4646°N, 12.3160°W |
| Timezone | Europe/Oslo |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.3.
| Apr 26, 1992 | 4 km NE of Terråk, Norway | M3.3 | 73 km | 10 km |
| Dec 12, 1994 | 55 km W of Lauvsnes, Norway | M2.8 | 124 km | 10 km |
| Apr 20, 1994 | 21 km NW of Å i Åfjord, Norway | M2.5 | 120 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: 8.2 m (27 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2014 | STATLAND | Meteorological | 8.2 m | — | 56 km |
| 1888 | MID-NORWAY | Meteorological | 7.0 m | 1 | 149 km |
| 1979 | NORTHERN NORWAY | Meteorological | 2.0 m | — | 73 km |
| 1952 | MID-NORWAY | Meteorological | 2.0 m | — | 47 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 5.0 in | Coldest |
| February | 23°F (-5°C) | 4.0 in | |
| March | 28°F (-2°C) | 4.0 in | |
| April | 34°F (1°C) | 3.0 in | |
| May | 43°F (6°C) | 2.5 in | Driest |
| June | 51°F (11°C) | 3.6 in | |
| July | 56°F (13°C) | 4.0 in | Warmest |
| August | 54°F (12°C) | 4.0 in | |
| September | 47°F (8°C) | 5.8 in | Wettest |
| October | 38°F (3°C) | 5.7 in | |
| November | 30°F (-1°C) | 4.4 in | |
| December | 25°F (-4°C) | 5.1 in |
Grong has a seasonal temperature swing of 33°F / from 23°F in January to 56°F in July. Total annual precipitation is 51.1 inches, with September being the wettest month (5.8") and May the driest (2.5").