December weather forecastMjällom, Sweden

December

Weather in December

December, the first month of the winter in Mjällom, is also a subzero cold month, with an average temperature ranging between min -5.5°C (22.1°F) and max -2.3°C (27.9°F).

Temperature

With the onset of December, Mjällom's climate undergoes a slight change as the average high-temperature moves from a cold 1°C (33.8°F) in November to a subzero cold -2.3°C (27.9°F). December nighttime temperatures in Mjällom, Sweden, hover close to the daytime peak with an average of -5.5°C (22.1°F).

Humidity

In December, the average relative humidity in Mjällom, Sweden, is 90%.

Rainfall

In Mjällom, in December, during 8.2 rainfall days, 48mm (1.89") of precipitation is typically accumulated. In Mjällom, during the entire year, the rain falls for 134.7 days and collects up to 438mm (17.24") of precipitation.

Snowfall

Months with snowfall in Mjällom are January through May, October through December. In Mjällom, in December, snow falls for 15.5 days, with typically accumulated 237mm (9.33") of snow. In Mjällom, during the entire year, snow falls for 81.9 days and aggregates up to 1058mm (41.65") of snow.

Daylight

With an average of 4h and 54min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:51 and sunset at 14:19. On the last day of December, sunrise is at 09:21 and sunset at 14:17 CET.

Sunshine

The month with the least sunshine in Mjällom is December, with an average of 1.6h of sunshine.

UV index

January through March and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 1 in December leads to these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.

Frequently asked questions

In Mjällom, in December, the average high-temperature is -2.3°C (27.9°F), and the average low-temperature is -5.5°C (22.1°F).

In Mjällom, the average relative humidity in December is 90%.

In Mjällom, in December, it is raining for 8.2 days, with typically 48mm (1.89") of accumulated precipitation.

In Mjällom, in December, snow falls for 15.5 days, with typically accumulated 237mm (9.33") of snow.

With an average of 4h and 54min of daylight, December has the shortest days of the year in Mjällom, Sweden.

In Mjällom, Sweden, the average day length in December is 4h and 56min.

In December, on the first day of the month, sunrise is at 08:51 and sunset at 14:19. On the last day of the month, sunrise is at 09:21 and sunset at 14:17 CET.

December has the least sunshine of the year, with an average of 1.6h of sunshine.

The average sunshine duration in December in Mjällom is 1.6h.

The months with the lowest UV index in Mjällom, Sweden, are January through March and December, with an average maximum UV index of 1.

In Mjällom, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
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
Mjällom, Sweden

  • Average high temperature in December: -2.3°C

The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-3.8°C).

  • Average low temperature in December: -5.5°C

The month with the highest average low temperature is July (10.6°C).
The coldest month (with the lowest average low temperature) is February (-8.4°C).

Average pressure in December
Mjällom, Sweden

  • Average pressure in December: 1005.7mbar

The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.7mbar).

Average wind speed in December
Mjällom, Sweden

  • Average wind speed in December: 10.5km/h

The windiest month (with the highest average wind speed) is March (10.8km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).

Average humidity in December
Mjällom, Sweden

  • Average humidity in December: 90%

The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is June (65%).

Average rainfall in December
Mjällom, Sweden

  • Average rainfall in December: 48mm

The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is April (25mm).

Average rainfall days in December
Mjällom, Sweden

  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in December
Mjällom, Sweden

  • Average snowfall in December: 237mm

The month with the highest snowfall is January (245mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Mjällom, Sweden

  • Average snowfall days in December: 15.5 days

The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Mjällom, Sweden

  • Average daylight in December: 4h and 54min

The month with the longest days is June (Average daylight: 20h and 6min).
The month with the shortest days is December (Average daylight: 4h and 54min).

  • Average sunshine in December: 1h and 36min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).

Average sunshine days in December
Mjällom, Sweden

  • Average sunshine days in December: 10.5 days

The month with the most sunshine days is October (15.5 days).
The months with the least sunshine days are February and December (10.5 days).

Average UV index in December
Mjällom, 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 and December (UV index 1).

Average cloud cover in December
Mjällom, Sweden

  • Average cloud cover in December: 63

The months with the most cloud cover are January and February (Cloud cover 65).
The months with the least cloud cover are June and July (Cloud cover 44).

Average visibility in December
Mjällom, Sweden

  • Average visibility in December: 7km

The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (6km).