December weather forecastByafossen, Norway

December

Weather in December

December, the first month of the winter in Byafossen, is still a freezing cold month, with an average temperature varying between -1.1°C (30°F) and -4.5°C (23.9°F).

Temperature

The shift into December finds Byafossen at an average high-temperature of a freezing cold -1.1°C (30°F), closely comparable to November's conditions. Byafossen observes a minimal variance in temperature, with a consistent average low of -4.5°C (23.9°F) during the nights of December.

Humidity

In Byafossen, the average relative humidity in December is 87%.

Rainfall

In Byafossen, in December, it is raining for 11.8 days, with typically 73mm (2.87") of accumulated precipitation. Throughout the year, there are 167.8 rainfall days, and 717mm (28.23") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Byafossen, in December, during 14.1 snowfall days, 218mm (8.58") of snow is typically accumulated. In Byafossen, during the entire year, snow falls for 75.9 days and aggregates up to 1278mm (50.31") of snow.

Daylight

December has the shortest days of the year, with an average of 4h and 24min of daylight.
On the first day of the month, sunrise is at 09:31 and sunset at 14:34. On the last day of December, sunrise is at 10:03 and sunset at 14:30 CET.

Sunshine

December has the least sunshine of the year, with an average of 1.5h of sunshine.

UV index

The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 1 during December leads to these instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.

Frequently asked questions

December temperatures in Byafossen vary between a high-temperature of -1.1°C (30°F) and a low-temperature of -4.5°C (23.9°F).

In Byafossen, Norway, the average relative humidity in December is 87%.

In Byafossen, in December, it is raining for 11.8 days, with typically 73mm (2.87") of accumulated precipitation.

In December, it is snowing for 14.1 days. Throughout December, 218mm (8.58") of snow is accumulated.

December has the shortest days of the year, with an average of 4h and 24min of daylight.

In Byafossen, the average day length in December is 4h and 26min.

On the first day of December, sunrise is at 09:31 and sunset at 14:34. On the last day of the month, sunrise is at 10:03 and sunset at 14:30 CET.

The month with the least sunshine is December, with an average of 1.5h of sunshine.

In Byafossen, the average sunshine duration in December is 1.5h.

February and December, with an average maximum UV index of 1, are months with the lowest UV index.

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from 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
Byafossen, Norway

  • Average high temperature in December: -1.1°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 (-2.3°C).

  • Average low temperature in December: -4.5°C

The month with the highest average low temperature is July (9.5°C).
The coldest month (with the lowest average low temperature) is February (-6.5°C).

Average pressure in December
Byafossen, Norway

  • Average pressure in December: 1003.5mbar

The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1003.5mbar).

Average wind speed in December
Byafossen, Norway

  • Average wind speed in December: 10.8km/h

The windiest month (with the highest average wind speed) is January (11.7km/h).
The calmest months (with the lowest average wind speed) are July and August (8.3km/h).

Average humidity in December
Byafossen, Norway

  • Average humidity in December: 87%

The month with the highest relative humidity is February (90%).
The months with the lowest relative humidity are May and June (73%).

Average rainfall in December
Byafossen, Norway

  • Average rainfall in December: 73mm

The wettest month (with the highest rainfall) is March (78mm).
The driest month (with the least rainfall) is November (41mm).

Average rainfall days in December
Byafossen, Norway

  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is February (8 days).

Average snowfall in December
Byafossen, Norway

  • Average snowfall in December: 218mm

The month with the highest snowfall is March (275mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Byafossen, Norway

  • Average snowfall days in December: 14.1 days

The month with the highest number of snowfall days is March (16 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Byafossen, Norway

  • Average daylight in December: 4h and 24min

The month with the longest days is June (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 4h and 24min).

  • Average sunshine in December: 1h and 30min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).

Average sunshine days in December
Byafossen, Norway

  • Average sunshine days in December: 9.4 days

The month with the most sunshine days is November (13.6 days).
The month with the least sunshine days is December (9.4 days).

Average UV index in December
Byafossen, Norway

  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are February and December (UV index 1).

Average cloud cover in December
Byafossen, Norway

  • Average cloud cover in December: 62

The month with the most cloud cover is March (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 50).

Average visibility in December
Byafossen, Norway

  • Average visibility in December: 8km

The months with the highest visibility are May and June (9km).
The months with the lowest visibility are January, February and March (7km).