December weather forecastOrnäs, Sweden
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Ornäs, Sweden, with an average temperature varying between -1.2°C (29.8°F) and -4.5°C (23.9°F).Temperature
The start of December involves a subtle temperature drop, shifting from a cold 2.7°C (36.9°F) in November to a freezing cold -1.2°C (29.8°F). In December, Ornäs temperatures settle at a low of -4.5°C (23.9°F) during the nights, reflecting a minor change from daytime highs.Humidity
In Ornäs, Sweden, the average relative humidity in December is 90%.Rainfall
In Ornäs, during December, the rain falls for 3.7 days and regularly aggregates up to 19mm (0.75") of precipitation. Throughout the year, in Ornäs, there are 103.4 rainfall days, and 308mm (12.13") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Ornäs, during December, snow falls for 12.1 days and regularly aggregates up to 110mm (4.33") of snow. Throughout the year, in Ornäs, there are 58.7 snowfall days, and 609mm (23.98") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 5h and 54min of daylight.On the first day of the month, sunrise is at 08:37 and sunset at 14:56. On the last day of December, in Ornäs, sunrise is at 09:04 and sunset at 14:57 CET.
Sunshine
December has the least sunshine of the year, with an average of 1.9h of sunshine.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ornäs, Sweden
- Average high temperature in December: -1.2°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-2.6°C).
- Average low temperature in December: -4.5°C
The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-6.8°C).
Average pressure in December
Ornäs, Sweden
- Average pressure in December: 1007.2mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1007.2mbar).
Average wind speed in December
Ornäs, Sweden
- Average wind speed in December: 10.5km/h
The windiest month (with the highest average wind speed) is December (10.5km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity in December
Ornäs, Sweden
- Average humidity in December: 90%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (67%).
Average rainfall in December
Ornäs, Sweden
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is July (40mm).
The driest month (with the least rainfall) is February (15mm).
Average rainfall days in December
Ornäs, Sweden
- Average rainfall days in December: 3.7 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in December
Ornäs, Sweden
- Average snowfall in December: 110mm
The month with the highest snowfall is March (122mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Ornäs, Sweden
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is 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
Ornäs, Sweden
- Average daylight in December: 5h and 54min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in December: 1h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days in December
Ornäs, Sweden
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is October (19.7 days).
The months with the least sunshine days are February and July (14.7 days).
Average UV index in December
Ornäs, 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, February and December (UV index 1).
Average cloud cover in December
Ornäs, Sweden
- Average cloud cover in December: 64
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 46).
Average visibility in December
Ornäs, Sweden
- Average visibility in December: 7km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January and February (6km).
