Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
A minor decrease in the average high-temperature is observed during December, shifting from an icy 3.7°C (38.7°F) in November to a freezing cold -0.1°C (31.8°F). Riddarhyttan reports an average low-temperature of -3.5°C (25.7°F) during the subtly cooler December nights.Humidity
In Riddarhyttan, the average relative humidity in December is 90%.Rainfall
In Riddarhyttan, in December, during 8.9 rainfall days, 34mm (1.34") of precipitation is typically accumulated. Throughout the year, there are 148.5 rainfall days, and 445mm (17.52") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Riddarhyttan, Sweden. In December, in Riddarhyttan, it is snowing for 13.6 days. Throughout December, 144mm (5.67") of snow is accumulated. In Riddarhyttan, during the entire year, snow falls for 67.4 days and aggregates up to 724mm (28.5") of snow.Daylight
With an average of 6h and 6min of daylight, December has the shortest days of the year in Riddarhyttan.On the first day of December in Riddarhyttan, sunrise is at 08:31 and sunset at 15:01. On the last day of the month, sunrise is at 08:58 and sunset at 15:03 CET.
Sunshine
December has the least sunshine of the year, with an average of 2.5h of sunshine.UV index
In Riddarhyttan, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Riddarhyttan in December?
What is the average humidity in December in Riddarhyttan?
How much does it rain in Riddarhyttan in December?
How much does it snow in Riddarhyttan in December?
What is the month with the shortest days in Riddarhyttan?
What is the average length of the day in December in Riddarhyttan?
When are sunrise and sunset in December in Riddarhyttan?
What is the month with the least sunshine in Riddarhyttan?
How many hours of sunshine does Riddarhyttan have in December?
What is the UV index reading in December in Riddarhyttan?
Average temperature in December
Riddarhyttan, Sweden
- Average high temperature in December: -0.1°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-1.8°C).
- Average low temperature in December: -3.5°C
The month with the highest average low temperature is July (11.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).
Average pressure in December
Riddarhyttan, Sweden
- Average pressure in December: 1007.6mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in December
Riddarhyttan, Sweden
- Average wind speed in December: 12.2km/h
The windiest month (with the highest average wind speed) is December (12.2km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in December
Riddarhyttan, Sweden
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (68%).
Average rainfall in December
Riddarhyttan, Sweden
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in December
Riddarhyttan, Sweden
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Riddarhyttan, Sweden
- Average snowfall in December: 144mm
The month with the highest snowfall is March (164mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Riddarhyttan, Sweden
- Average snowfall days in December: 13.6 days
The month with the highest number of snowfall days is February (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Riddarhyttan, Sweden
- Average daylight in December: 6h and 1min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in December: 2h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Riddarhyttan, Sweden
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is April (14.2 days).
The month with the least sunshine days is August (9.3 days).
Average UV index in December
Riddarhyttan, Sweden
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Riddarhyttan, Sweden
- Average cloud cover in December: 65
The month with the most cloud cover is February (Cloud cover 69).
The months with the least cloud cover are June and July (Cloud cover 44).
Average visibility in December
Riddarhyttan, Sweden
- Average visibility in December: 7km
The months with the highest visibility are April, May, June, July and August (9km).
The month with the lowest visibility is February (6km).
Riddarhyttan, Sweden
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