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Weather & Climate in Siilinjärvi, Finland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Siilinjärvi has a cool climate with an average annual temperature of 37°F (3°C). Winters average 15°F in January while summers reach 62°F in July. The area gets 291 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 24.8 inches (drier than the 38-inch national average). The area receives 9.7 inches of snow annually. The city sits at an elevation of 272 feet.
Temperature
15°F Jan (-10°C)
62°F Jul (17°C)
| Annual Average | 37.4°F |
| 31% below US avg | |
| January Average | 15°F (-10°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 291 days/yr |
Geography
| Elevation | 272 ft (83 m) |
| Area | 258.0 sq mi (668.2 km²) |
| Population Density | 83/sq mi |
| Coordinates | 63.0833°N, 27.6667°W |
| Timezone | Europe/Helsinki |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 15°F (-10°C) | 1.7 in | Coldest |
| February | 15°F (-9°C) | 1.3 in | Driest |
| March | 25°F (-4°C) | 1.4 in | |
| April | 35°F (2°C) | 1.4 in | |
| May | 48°F (9°C) | 1.6 in | |
| June | 58°F (15°C) | 2.6 in | |
| July | 62°F (17°C) | 3.1 in | Warmest |
| August | 58°F (14°C) | 3.3 in | Wettest |
| September | 48°F (9°C) | 2.5 in | |
| October | 38°F (3°C) | 2.2 in | |
| November | 27°F (-3°C) | 2.1 in | |
| December | 19°F (-7°C) | 1.9 in |
Siilinjärvi has a seasonal temperature swing of 47°F / from 15°F in January to 62°F in July. Total annual precipitation is 24.9 inches, with August being the wettest month (3.3") and February the driest (1.3").