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
December
Weather in December
Temperature
The arrival of December correlates with a minor temperature reduction, down from November's wintry 0.8°C (33.4°F) to a freezing cold -2.8°C (27°F). Registering an almost steady temperature, Keräsjoki's nights in December see an average low of -6.3°C (20.7°F).Humidity
The average relative humidity in December is 91%.Rainfall
The month with the most rainfall is December, when the rain falls for 6.3 days and typically aggregates up to 42mm (1.65") of precipitation.Snowfall
January through June, September through December are months with snowfall. In December, it is snowing for 16.6 days. Throughout December, 176mm (6.93") of snow is accumulated. In Keräsjoki, during the entire year, snow falls for 89.7 days and aggregates up to 919mm (36.18") of snow.Daylight
The month with the shortest days is December, with an average of 3h and 18min of daylight.On the first day of December, sunrise is at 09:09 and sunset at 13:17. On the last day of the month, sunrise is at 09:49 and sunset at 13:06 CET.
Sunshine
December has the least sunshine of the year, with an average of 1.2h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 1 during December translates into the following guidance:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
How much does it snow in Keräsjoki in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index in Keräsjoki?
What is the UV index reading in December?
Average temperature in December
Keräsjoki, Sweden
- Average high temperature in December: -2.8°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in December: -6.3°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-10.9°C).
Average pressure in December
Keräsjoki, Sweden
- Average pressure in December: 1004.9mbar
The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).
Average wind speed in December
Keräsjoki, Sweden
- Average wind speed in December: 16.3km/h
The windiest months (with the highest average wind speed) are November and December (16.3km/h).
The calmest month (with the lowest average wind speed) is April (12km/h).
Average humidity in December
Keräsjoki, Sweden
- Average humidity in December: 91%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is June (70%).
Average rainfall in December
Keräsjoki, Sweden
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is December (42mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Keräsjoki, Sweden
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is July (11.8 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in December
Keräsjoki, Sweden
- Average snowfall in December: 176mm
The month with the highest snowfall is March (203mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Keräsjoki, Sweden
- Average snowfall days in December: 16.6 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Keräsjoki, Sweden
- Average daylight in December: 3h and 2min
The month with the longest days is July (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 3h and 18min).
- Average sunshine in December: 1h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).
Average sunshine days in December
Keräsjoki, Sweden
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Keräsjoki, Sweden
- 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, March, November and December (UV index 1).
Average cloud cover in December
Keräsjoki, Sweden
- Average cloud cover in December: 71
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Keräsjoki, Sweden
- Average visibility in December: 8km
The months with the highest visibility are June, July and August (10km).
The month with the lowest visibility is January (6km).
