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
December
Weather in December
Temperature
The arrival of December correlates with a minor temperature reduction, down from November's cold 4.8°C (40.6°F) to a still icy 1°C (33.8°F). Österbymo's December nights exhibit a subtle drop in temperature, averaging at a subzero cold -2.4°C (27.7°F), closely aligned with the daytime highs.Humidity
The average relative humidity in December is 90%.Rainfall
In December, the rain falls for 7.8 days. Throughout December, 25mm (0.98") of precipitation is accumulated. In Österbymo, during the entire year, the rain falls for 127.5 days and collects up to 316mm (12.44") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Österbymo, Sweden, during December, snow falls for 11.3 days and regularly aggregates up to 95mm (3.74") of snow. In Österbymo, during the entire year, snow falls for 58.1 days and aggregates up to 464mm (18.27") of snow.Daylight
December has the shortest days of the year, with an average of 6h and 36min of daylight.On the first day of the month, sunrise is at 08:18 and sunset at 15:17. On the last day of December, in Österbymo, Sweden, sunrise is at 08:42 and sunset at 15:21 CET.
Sunshine
The month with the least sunshine is December, with an average of 2.8h of sunshine.UV index
The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December in Österbymo?
How high is the UV index in December?
Average temperature in December
Österbymo, Sweden
- Average high temperature in December: 1°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in December: -2.4°C
The month with the highest average low temperature is July (11.7°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).
Average pressure in December
Österbymo, Sweden
- Average pressure in December: 1009.1mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in December
Österbymo, Sweden
- Average wind speed in December: 14.1km/h
The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in December
Österbymo, 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 (69%).
Average rainfall in December
Österbymo, Sweden
- Average rainfall in December: 25mm
The wettest month (with the highest rainfall) is August (40mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in December
Österbymo, Sweden
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Österbymo, Sweden
- Average snowfall in December: 95mm
The month with the highest snowfall is February (120mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Österbymo, Sweden
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Österbymo, Sweden
- Average daylight in December: 6h and 4min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 48min).
Average sunshine days in December
Österbymo, Sweden
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is February (11.8 days).
Average UV index in December
Österbymo, Sweden
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Österbymo, Sweden
- Average cloud cover in December: 72
The months with the most cloud cover are February and December (Cloud cover 72).
The month with the least cloud cover is June (Cloud cover 45).
Average visibility in December
Österbymo, Sweden
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January and February (7km).
