December weather forecastGrorud, Norway
December
Weather in December
December, the first month of the winter in Grorud, is also a subzero cold month, with an average temperature varying between -5.6°C (21.9°F) and -2.1°C (28.2°F).Temperature
December's arrival comes with a mild decrease in the average high-temperature, moving subtly from an icy 2.2°C (36°F) in November to a freezing cold -2.1°C (28.2°F). Grorud notes a steady average temperature of -5.6°C (21.9°F) during the nights of December.Humidity
In December, the average relative humidity is 89%.Rainfall
In Grorud, during December, the rain falls for 6 days and regularly aggregates up to 37mm (1.46") of precipitation. In Grorud, Norway, during the entire year, the rain falls for 142.2 days and collects up to 648mm (25.51") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Grorud, during December, snow falls for 12.4 days and regularly aggregates up to 199mm (7.83") of snow. Throughout the year, in Grorud, there are 71.1 snowfall days, and 1230mm (48.43") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 6h and 6min of daylight.On the first day of the month, sunrise is at 08:51 and sunset at 15:19. On the last day of December, sunrise is at 09:18 and sunset at 15:20 CET.
Sunshine
The months with the least sunshine in Grorud, Norway, are January and December, with an average of 3.1h of sunshine.UV index
The months with the lowest UV index in Grorud are January through March and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grorud, 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 (-2.8°C).
- Average low temperature in December: -5.6°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-8.2°C).
Average pressure in December
Grorud, Norway
- Average pressure in December: 1008mbar
The month with the highest atmospheric pressure is April (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in December
Grorud, Norway
- Average wind speed in December: 9.1km/h
The windiest month (with the highest average wind speed) is May (9.3km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).
Average humidity in December
Grorud, Norway
- Average humidity in December: 89%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is May (70%).
Average rainfall in December
Grorud, Norway
- Average rainfall in December: 37mm
The wettest month (with the highest rainfall) is July (79mm).
The driest months (with the least rainfall) are January and April (27mm).
Average rainfall days in December
Grorud, Norway
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (22 days).
The months with the least rainy days are January and February (2.8 days).
Average snowfall in December
Grorud, Norway
- Average snowfall in December: 199mm
The month with the highest snowfall is March (238mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grorud, Norway
- Average snowfall days in December: 12.4 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grorud, Norway
- Average daylight in December: 6h and 6min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in December: 3h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The months with the least sunshine are January and December (Average sunshine: 3h and 6min).
Average sunshine days in December
Grorud, Norway
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is January (16.9 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in December
Grorud, Norway
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover in December
Grorud, Norway
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in December
Grorud, Norway
- Average visibility in December: 7km
The months with the highest visibility are May and June (9km).
The months with the lowest visibility are January, February and March (6km).





