December weather forecastGjerdrum, Norway
December
Weather in December
December, the first month of the winter in Gjerdrum, is still a freezing cold month, with an average temperature varying between -5.6°C (21.9°F) and -2.1°C (28.2°F).Temperature
December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a wintry 1.8°C (35.2°F) in November to a subzero cold -2.1°C (28.2°F). Gjerdrum experiences a subtle drop in temperature during the December nights, recording an average of -5.6°C (21.9°F).Humidity
The average relative humidity in December in Gjerdrum is 90%.Rainfall
In December, the rain falls for 6.5 days. Throughout December, 18mm (0.71") of precipitation is accumulated. Throughout the year, in Gjerdrum, there are 138.7 rainfall days, and 344mm (13.54") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Gjerdrum, Norway, in December, snow falls for 10.8 days, with typically accumulated 83mm (3.27") of snow. Throughout the year, there are 65.4 snowfall days, and 469mm (18.46") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 6h and 0min of daylight.On the first day of December in Gjerdrum, Norway, sunrise is at 08:52 and sunset at 15:17. On the last day of the month, sunrise is at 09:18 and sunset at 15:18 CET.
Sunshine
The months with the least sunshine are January and December, with an average of 3h of sunshine.UV index
January through March and December, with an average maximum UV index of 1, are months with the lowest UV index in Gjerdrum, Norway. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gjerdrum, Norway
- Average high temperature in December: -2.1°C
The warmest month (with the highest average high temperature) is July (20.1°C).
The month with the lowest average high temperature is January (-3.2°C).
- Average low temperature in December: -5.6°C
The month with the highest average low temperature is July (10.3°C).
The coldest month (with the lowest average low temperature) is February (-8.1°C).
Average pressure in December
Gjerdrum, Norway
- Average pressure in December: 1008mbar
The month with the highest atmospheric pressure is April (1014.4mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in December
Gjerdrum, Norway
- Average wind speed in December: 9km/h
The windiest month (with the highest average wind speed) is May (9.1km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in December
Gjerdrum, Norway
- Average humidity in December: 90%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Gjerdrum, Norway
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is January (16mm).
Average rainfall days in December
Gjerdrum, Norway
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in December
Gjerdrum, Norway
- Average snowfall in December: 83mm
The month with the highest snowfall is March (103mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Gjerdrum, Norway
- Average snowfall days in December: 10.8 days
The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gjerdrum, Norway
- Average daylight in December: 6h and 0min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 3h and 0min).
Average sunshine days in December
Gjerdrum, Norway
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is October (16.2 days).
The month with the least sunshine days is July (8.2 days).
Average UV index in December
Gjerdrum, Norway
- 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
Gjerdrum, Norway
- Average cloud cover in December: 59
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is June (Cloud cover 48).
Average visibility in December
Gjerdrum, Norway
- Average visibility in December: 7km
The months with the highest visibility are May and June (9km).
The month with the lowest visibility is February (5km).
