December weather forecastOna, Norway
December
Weather in December
The first month of the winter, December, is also a wintry month in Ona, Norway, with temperature in the range of an average low of 3.4°C (38.1°F) and an average high of 5.4°C (41.7°F).Temperature
December's weather displays an average high-temperature of a wintry 5.4°C (41.7°F), slightly varied from November's 7.2°C (45°F). Throughout December, a modest shift from daytime highs is anticipated in Ona, Norway, with an average low-temperature of 3.4°C (38.1°F).Humidity
The average relative humidity in December in Ona is 71%.Rainfall
December is the month with the most rainfall. Rain falls for 20.6 days and accumulates 143mm (5.63") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Ona, Norway, in December, snow falls for 5.7 days, with typically accumulated 64mm (2.52") of snow. In Ona, during the entire year, snow falls for 36.2 days and aggregates up to 498mm (19.61") of snow.Daylight
With an average of 5h and 0min of daylight, December has the shortest days of the year in Ona.On the first day of the month, sunrise is at 09:37 and sunset at 15:08. On the last day of December, sunrise is at 10:07 and sunset at 15:06 CET.
Sunshine
The month with the least sunshine in Ona, Norway, is December, with an average of 1.7h of sunshine.UV index
The months with the lowest UV index in Ona are January through March, October through December, with an average maximum UV index of 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: A maximum high daily UV index of 2 during December translates into the following directions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Around midday, solar radiation is most harmful; hence, exposure should be limited. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Caution! The reflection of snow 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
Average temperature in December
Ona, Norway
- Average high temperature in December: 5.4°C
The warmest month (with the highest average high temperature) is August (15°C).
The month with the lowest average high temperature is February (4.2°C).
- Average low temperature in December: 3.4°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).
Average pressure in December
Ona, Norway
- Average pressure in December: 1002.5mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1002.5mbar).
Average wind speed in December
Ona, Norway
- Average wind speed in December: 28.7km/h
The windiest month (with the highest average wind speed) is December (28.7km/h).
The calmest month (with the lowest average wind speed) is August (16.9km/h).
Average humidity in December
Ona, Norway
- Average humidity in December: 71%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is November (70%).
Average rainfall in December
Ona, Norway
- Average rainfall in December: 143mm
The wettest month (with the highest rainfall) is December (143mm).
The driest month (with the least rainfall) is June (53mm).
Average rainfall days in December
Ona, Norway
- Average rainfall days in December: 20.6 days
The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is January (15.8 days).
Average snowfall in December
Ona, Norway
- Average snowfall in December: 64mm
The month with the highest snowfall is February (127mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Ona, Norway
- Average snowfall days in December: 5.7 days
The month with the highest number of snowfall days is February (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ona, Norway
- Average daylight in December: 5h and 0min
The month with the longest days is June (Average daylight: 20h and 0min).
The month with the shortest days is December (Average daylight: 5h and 0min).
- Average sunshine in December: 1h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in December
Ona, Norway
- Average sunshine days in December: 6.1 days
The months with the most sunshine days are May and November (10.5 days).
The month with the least sunshine days is December (6.1 days).
Average UV index in December
Ona, Norway
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Ona, Norway
- Average cloud cover in December: 64
The month with the most cloud cover is March (Cloud cover 66).
The month with the least cloud cover is May (Cloud cover 52).
Average visibility in December
Ona, Norway
- Average visibility in December: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).





