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Weather & Climate in Viiala, Finland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Viiala has a cool climate with an average annual temperature of 40°F (4°C). Winters average 20°F in January while summers reach 62°F in July. The area gets 294 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 23.1 inches (drier than the 38-inch national average). The area receives 7.6 inches of snow annually. The city sits at an elevation of 256 feet.
Temperature
20°F Jan (-7°C)
62°F Jul (16°C)
| Annual Average | 39.5°F |
| 27% below US avg | |
| January Average | 20°F (-7°C) |
| July Average | 62°F (16°C) |
| Sunny Days | 294 days/yr |
Geography
| Elevation | 256 ft (78 m) |
| Area | 140.8 sq mi (364.6 km²) |
| Population Density | 39/sq mi |
| Coordinates | 61.2102°N, 23.7674°W |
| Timezone | Europe/Helsinki |
Precipitation & Snow
Air Quality
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M2.7.
| May 24, 1995 | 8 km ENE of Nagu, Finland | M2.7 | 144 km | 10 km |
| Mar 19, 2011 | Finland | M2.6 | 109 km | 3 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 1.5 in | |
| February | 19°F (-7°C) | 1.1 in | Coldest, Driest |
| March | 27°F (-3°C) | 1.3 in | |
| April | 37°F (3°C) | 1.3 in | |
| May | 50°F (10°C) | 1.4 in | |
| June | 58°F (15°C) | 2.2 in | |
| July | 62°F (16°C) | 3.0 in | Warmest, Wettest |
| August | 58°F (15°C) | 3.0 in | |
| September | 49°F (9°C) | 2.3 in | |
| October | 40°F (4°C) | 2.2 in | |
| November | 31°F (-1°C) | 2.0 in | |
| December | 24°F (-5°C) | 1.7 in |
Viiala has a seasonal temperature swing of 42°F / from 19°F in February to 62°F in July. Total annual precipitation is 23.1 inches, with July being the wettest month (3.0") and February the driest (1.1").