December weather forecastGrums, Sweden
December
Weather in December
December, the first month of the winter in Grums, is also a wintry month, with an average temperature ranging between max 1.4°C (34.5°F) and min -1.7°C (28.9°F).Temperature
The move into December indicates a slight reduction in the average high-temperature, down from November's icy 4.8°C (40.6°F) to a still cold 1.4°C (34.5°F). In Grums, nights during December observe an average temperature decrease to a subzero cold -1.7°C (28.9°F).Humidity
The average relative humidity in December is 86%.Rainfall
In Grums, in December, it is raining for 10.5 days, with typically 37mm (1.46") of accumulated precipitation. Throughout the year, there are 153.4 rainfall days, and 510mm (20.08") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Grums, during December, snow falls for 10 days and regularly aggregates up to 83mm (3.27") of snow. Throughout the year, in Grums, Sweden, there are 52.7 snowfall days, and 511mm (20.12") of snow is accumulated.Daylight
With an average of 6h and 12min of daylight, December has the shortest days of the year.On the first day of December in Grums, sunrise is at 08:38 and sunset at 15:15. On the last day of the month, sunrise is at 09:03 and sunset at 15:17 CET.
Sunshine
The month with the least sunshine is December, with an average of 3.1h of sunshine.UV index
The months with the lowest UV index in Grums are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grums, Sweden
- Average high temperature in December: 1.4°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in December: -1.7°C
The month with the highest average low temperature is July (13.2°C).
The coldest month (with the lowest average low temperature) is February (-3.8°C).
Average pressure in December
Grums, Sweden
- Average pressure in December: 1008mbar
The months with the highest atmospheric pressure are April and May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in December
Grums, Sweden
- Average wind speed in December: 15.8km/h
The windiest month (with the highest average wind speed) is December (15.8km/h).
The calmest month (with the lowest average wind speed) is July (12.2km/h).
Average humidity in December
Grums, Sweden
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are May and June (70%).
Average rainfall in December
Grums, Sweden
- Average rainfall in December: 37mm
The wettest month (with the highest rainfall) is August (61mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in December
Grums, Sweden
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Grums, Sweden
- Average snowfall in December: 83mm
The month with the highest snowfall is January (133mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grums, Sweden
- Average snowfall days in December: 10 days
The months with the highest number of snowfall days are January and February (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grums, Sweden
- Average daylight in December: 6h and 12min
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: 3h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in December
Grums, Sweden
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is April (17.1 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in December
Grums, Sweden
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Grums, Sweden
- Average cloud cover in December: 63
The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are June, July and August (Cloud cover 40).
Average visibility in December
Grums, Sweden
- Average visibility in December: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (8km).
