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Weather & Climate in Järnforsen, Sweden
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Järnforsen has a cool climate with an average annual temperature of 43°F (6°C). Winters average 27°F in January while summers reach 61°F in July. The area gets 293 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 23.9 inches (drier than the 38-inch national average). The area receives 8.5 inches of snow annually. The city sits at an elevation of 364 feet.
Temperature
27°F Jan (-3°C)
61°F Jul (16°C)
| Annual Average | 42.9°F |
| 21% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 364 ft (111 m) |
| Area | 0.6 sq mi (1.4 km²) |
| Population Density | 927/sq mi |
| Coordinates | 57.4167°N, 15.6167°W |
| Timezone | Europe/Stockholm |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.7.
| Sep 29, 2004 | 27 km SE of Västervik, Sweden | M3.7 | 87 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 1.7 in | |
| February | 27°F (-3°C) | 1.3 in | Coldest, Driest |
| March | 33°F (0°C) | 1.4 in | |
| April | 40°F (4°C) | 1.5 in | |
| May | 50°F (10°C) | 1.7 in | |
| June | 57°F (14°C) | 2.5 in | |
| July | 61°F (16°C) | 2.7 in | Warmest, Wettest |
| August | 59°F (15°C) | 2.4 in | |
| September | 51°F (11°C) | 2.6 in | |
| October | 43°F (6°C) | 2.1 in | |
| November | 35°F (2°C) | 2.1 in | |
| December | 30°F (-1°C) | 2.1 in |
Järnforsen has a seasonal temperature swing of 33°F / from 27°F in February to 61°F in July. Total annual precipitation is 23.9 inches, with July being the wettest month (2.7") and February the driest (1.3").