December weather forecastPirilö, Finland
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Pirilö, Finland, with an average temperature fluctuating between -0.2°C (31.6°F) and -2.5°C (27.5°F).Temperature
A subtle shift in Pirilö's weather is observed as November turns into December, with the average high temperature reducing from a wintry 3.5°C (38.3°F) to a subzero cold -0.2°C (31.6°F). In Pirilö, the month of December brings a consistent average low-temperature of -2.5°C (27.5°F), slightly cooler than its daytime highs.Humidity
In December, the average relative humidity is 87%.Rainfall
In Pirilö, in December, it is raining for 7.4 days, with typically 37mm (1.46") of accumulated precipitation. Throughout the year, there are 134.8 rainfall days, and 453mm (17.83") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Pirilö, during December, snow falls for 13.9 days and regularly aggregates up to 99mm (3.9") of snow. In Pirilö, during the entire year, snow falls for 75.8 days and aggregates up to 598mm (23.54") of snow.Daylight
The month with the shortest days in Pirilö is December, with an average of 4h and 36min of daylight.On the first day of December, sunrise is at 09:41 and sunset at 14:54. On the last day of the month, sunrise is at 10:13 and sunset at 14:50 EET.
Sunshine
December has the least sunshine of the year, with an average of 1.1h of sunshine.UV index
The months with the lowest UV index in Pirilö are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Pirilö, Finland
- Average high temperature in December: -0.2°C
The warmest month (with the highest average high temperature) is July (17.6°C).
The months with the lowest average high temperature are January and February (-3.3°C).
- Average low temperature in December: -2.5°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (-6.7°C).
Average pressure in December
Pirilö, Finland
- Average pressure in December: 1005.4mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1005.4mbar).
Average wind speed in December
Pirilö, Finland
- Average wind speed in December: 22.3km/h
The windiest month (with the highest average wind speed) is December (22.3km/h).
The calmest month (with the lowest average wind speed) is July (15.1km/h).
Average humidity in December
Pirilö, Finland
- Average humidity in December: 87%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (74%).
Average rainfall in December
Pirilö, Finland
- Average rainfall in December: 37mm
The wettest month (with the highest rainfall) is August (57mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in December
Pirilö, Finland
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is August (17.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in December
Pirilö, Finland
- Average snowfall in December: 99mm
The month with the highest snowfall is March (147mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Pirilö, Finland
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Pirilö, Finland
- Average daylight in December: 4h and 36min
The month with the longest days is June (Average daylight: 20h and 30min).
The month with the shortest days is December (Average daylight: 4h and 36min).
- Average sunshine in December: 1h and 6min
The month with the most sunshine is June (Average sunshine: 13h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in December
Pirilö, Finland
- Average sunshine days in December: 10.4 days
The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is December (10.4 days).
Average UV index in December
Pirilö, Finland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Pirilö, Finland
- Average cloud cover in December: 71
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are June and July (Cloud cover 38).
Average visibility in December
Pirilö, Finland
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and April (8km).
