December weather forecastRälla, Sweden
December
Weather in December
The first month of the winter, December, is still a cold month in Rälla, Sweden, with an average temperature fluctuating between 3.7°C (38.7°F) and 1.1°C (34°F).Temperature
December marks a gentle change in average high-temperature, declining from November's chilly 7.1°C (44.8°F) to a cold 3.7°C (38.7°F). In Rälla, the month of December brings a consistent average low-temperature of 1.1°C (34°F), slightly cooler than its daytime highs.Humidity
In Rälla, the average relative humidity in December is 84%.Rainfall
In Rälla, during December, the rain falls for 14.8 days and regularly aggregates up to 36mm (1.42") of precipitation. Throughout the year, in Rälla, there are 153.3 rainfall days, and 392mm (15.43") of precipitation is accumulated.Snowfall
Months with snowfall in Rälla, Sweden, are January through May, November and December. In Rälla, Sweden, during December, snow falls for 8.1 days and regularly aggregates up to 63mm (2.48") of snow. Throughout the year, in Rälla, there are 42.7 snowfall days, and 254mm (10") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 6h and 54min of daylight.On the first day of the month, sunrise is at 08:06 and sunset at 15:19. On the last day of December, sunrise is at 08:30 and sunset at 15:23 CET.
Sunshine
In December, the average sunshine in Rälla is 3.6h.UV index
The average daily maximum UV index in December in Rälla is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rälla, Sweden
- Average high temperature in December: 3.7°C
The warmest month (with the highest average high temperature) is August (19.9°C).
The months with the lowest average high temperature are January and February (1.8°C).
- Average low temperature in December: 1.1°C
The month with the highest average low temperature is August (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (-0.5°C).
Average pressure in December
Rälla, Sweden
- Average pressure in December: 1010.1mbar
The months with the highest atmospheric pressure are April and May (1015.3mbar).
The month with the lowest atmospheric pressure is December (1010.1mbar).
Average wind speed in December
Rälla, Sweden
- Average wind speed in December: 22.8km/h
The windiest month (with the highest average wind speed) is December (22.8km/h).
The calmest month (with the lowest average wind speed) is May (16.1km/h).
Average humidity in December
Rälla, Sweden
- Average humidity in December: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, May and June (74%).
Average rainfall in December
Rälla, Sweden
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is November (47mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in December
Rälla, Sweden
- Average rainfall days in December: 14.8 days
The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in December
Rälla, Sweden
- Average snowfall in December: 63mm
The month with the highest snowfall is February (72mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Rälla, Sweden
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Rälla, Sweden
- Average daylight in December: 6h and 54min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in December: 3h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 3h and 18min).
Average sunshine days in December
Rälla, Sweden
- Average sunshine days in December: 9.3 days
The month with the most sunshine days is May (16.4 days).
The month with the least sunshine days is November (8.7 days).
Average UV index in December
Rälla, Sweden
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Rälla, Sweden
- Average cloud cover in December: 64
The months with the most cloud cover are January and February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Rälla, Sweden
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
