December weather forecast
Trolldalen, Sweden

December

Weather in December

December, the first month of the winter in Trolldalen, is still a cold month, with an average temperature ranging between max 1.6°C (34.9°F) and min -1.5°C (29.3°F).

Temperature

With the onset of December, Trolldalen's climate undergoes a slight change as the average high-temperature moves from a cold 5°C (41°F) in November to a still icy 1.6°C (34.9°F). Trolldalen, during the nights of December, averages a temperature close to its daytime high, at a freezing cold -1.5°C (29.3°F).

Humidity

The months with the highest humidity in Trolldalen are January, February, November and December, with an average relative humidity of 87%.

Rainfall

In Trolldalen, Sweden, during December, the rain falls for 10.5 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, there are 151.7 rainfall days, and 403mm (15.87") of precipitation is accumulated.

Snowfall

Months with snowfall in Trolldalen are January through May, October through December. In Trolldalen, during December, snow falls for 10.7 days and regularly aggregates up to 78mm (3.07") of snow. In Trolldalen, during the entire year, snow falls for 53.7 days and aggregates up to 359mm (14.13") of snow.

Daylight

With an average of 6h and 12min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 08:18 and sunset at 14:54. On the last day of the month, sunrise is at 08:44 and sunset at 14:57 CET.

Sunshine

With an average of 2.5h of sunshine, December has the least sunshine of the year.

UV index

The average daily maximum UV index in December in Trolldalen is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

How cold is it in Trolldalen in December?
The average high-temperature and low-temperature during December are 1.6°C (34.9°F) and -1.5°C (29.3°F) respectively.
What is the most humid month in Trolldalen?
January, February, November and December, with an average relative humidity of 87%, are most humid months in Trolldalen, Sweden.
What is the average humidity in December in Trolldalen?
In December, the average relative humidity in Trolldalen, Sweden, is 87%.
How much does it rain in Trolldalen in December?
In December, in Trolldalen, Sweden, the rain falls for 10.5 days. Throughout December, 35mm (1.38") of precipitation is accumulated.
How much does it snow in Trolldalen in December?
In Trolldalen, Sweden, in December, snow falls for 10.7 days, with typically accumulated 78mm (3.07") of snow.
What is the month with the shortest days in Trolldalen?
December has the shortest days of the year in Trolldalen, with an average of 6h and 12min of daylight.
How many hours of daylight does Trolldalen have in December?
The average day length in December is 6h and 13min.
What time are sunrise and sunset in December in Trolldalen?
In December, on the first day of the month, sunrise is at 08:18 and sunset at 14:54. On the last day of the month, in Trolldalen, sunrise is at 08:44 and sunset at 14:57 CET.
What is the month with the least sunshine in Trolldalen?
The month with the least sunshine in Trolldalen, Sweden, is December, with an average of 2.5h of sunshine.
How long on average sun shines in December in Trolldalen?
The average sunshine duration in December is 2.5h.
What is the UV index reading in December in Trolldalen?
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Trolldalen, Sweden
  • Average high temperature in December: 1.6°C

The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (-0.2°C).

  • Average low temperature in December: -1.5°C

The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is January (-3.2°C).

Average pressure in December
Trolldalen, Sweden
  • Average pressure in December: 1007.8mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).

Average wind speed in December
Trolldalen, Sweden
  • Average wind speed in December: 19.7km/h

The windiest month (with the highest average wind speed) is December (19.7km/h).
The calmest month (with the lowest average wind speed) is July (13.2km/h).

Average humidity in December
Trolldalen, Sweden
  • Average humidity in December: 87%

The months with the highest relative humidity are January, February, November and December (87%).
The month with the lowest relative humidity is May (72%).

Average rainfall in December
Trolldalen, Sweden
  • Average rainfall in December: 35mm

The wettest month (with the highest rainfall) is July (52mm).
The driest month (with the least rainfall) is April (17mm).

Average rainfall days in December
Trolldalen, Sweden
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (6.1 days).

Average snowfall in December
Trolldalen, Sweden
  • Average snowfall in December: 78mm

The month with the highest snowfall is February (98mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Trolldalen, Sweden
  • Average snowfall days in December: 10.7 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Trolldalen, Sweden
  • Average daylight in December: 6h and 1min

The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).

  • Average sunshine in December: 2h and 3min

The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).

Average sunshine days in December
Trolldalen, Sweden
  • Average sunshine days in December: 10.4 days

The month with the most sunshine days is April (14.3 days).
The month with the least sunshine days is August (9.7 days).

Average UV index in December
Trolldalen, Sweden
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).

Average cloud cover in December
Trolldalen, Sweden
  • Average cloud cover in December: 65

The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in December
Trolldalen, Sweden
  • Average visibility in December: 9km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (9km).

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