Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In December, the average high-temperature marginally decreases from a cold 3.5°C (38.3°F) in November to a freezing cold -0.2°C (31.6°F). During December, Västersundsby's nights hold steady with an average temperature of -2.5°C (27.5°F), barely dropping from the daytime highs.Humidity
In Västersundsby, the average relative humidity in December is 87%.Rainfall
In Västersundsby, in December, during 7.4 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, in Västersundsby, there are 134.8 rainfall days, and 453mm (17.83") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Västersundsby, Finland. In Västersundsby, in December, during 13.9 snowfall days, 99mm (3.9") of snow is typically accumulated. In Västersundsby, during the entire year, snow falls for 75.8 days and aggregates up to 598mm (23.54") of snow.Daylight
With an average of 4h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 09:42 and sunset at 14:54. On the last day of the month, sunrise is at 10:14 and sunset at 14:51 EET.
Sunshine
With an average of 1.1h of sunshine, December has the least sunshine of the year in Västersundsby.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Västersundsby. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Västersundsby?
What is the average humidity in December in Västersundsby?
How many days does it rain in December in Västersundsby?
How many days does it snow in December in Västersundsby?
What is the month with the shortest days in Västersundsby?
What is the average length of the day in December in Västersundsby?
What time are sunrise and sunset in December in Västersundsby?
What is the month with the least sunshine in Västersundsby?
How many hours of sunshine does Västersundsby have in December?
When is the lowest UV index in Västersundsby?
How high is the UV index in December in Västersundsby?
Average temperature in December
Västersundsby, 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
Västersundsby, 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
Västersundsby, 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
Västersundsby, 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
Västersundsby, 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
Västersundsby, 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
Västersundsby, 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
Västersundsby, 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
Västersundsby, Finland
- Average daylight in December: 4h and 4min
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 1min
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
Västersundsby, 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
Västersundsby, 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
Västersundsby, 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
Västersundsby, 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).
Västersundsby, Finland
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