December weather forecastVallans, France
December
Weather in December
The first month of the winter, December, is also a frosty month in Vallans, France, with an average temperature ranging between min 4.4°C (39.9°F) and max 9.3°C (48.7°F).Temperature
A subtle shift in Vallans's weather is observed as November turns into December, with the average high temperature reducing from a cool 12.3°C (54.1°F) to a chilly 9.3°C (48.7°F). In December, Vallans temperatures settle at a low of 4.4°C (39.9°F) during the nights, reflecting a minor change from daytime highs.Humidity
December is the most humid month in Vallans, France, with an average relative humidity of 87%.Rainfall
In December, the rain falls for 14.2 days. Throughout December, 51mm (2.01") of precipitation is accumulated. In Vallans, during the entire year, the rain falls for 155 days and collects up to 425mm (16.73") of precipitation.Snowfall
January through March, November and December are months with snowfall in Vallans. In Vallans, in December, snow falls for 0.5 days, with typically accumulated 2mm (0.08") of snow. In Vallans, France, during the entire year, snow falls for 2.8 days and aggregates up to 9mm (0.35") of snow.Daylight
December has the shortest days of the year in Vallans, France, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 08:24 and sunset at 17:17. On the last day of December, sunrise is at 08:44 and sunset at 17:26 CET.
Sunshine
With an average of 4.6h of sunshine, December has the least sunshine of the year.UV index
In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Vallans, France
- Average high temperature in December: 9.3°C
The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in December: 4.4°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is February (2.4°C).
Average pressure in December
Vallans, France
- Average pressure in December: 1020mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in December
Vallans, France
- Average wind speed in December: 15.8km/h
The windiest month (with the highest average wind speed) is February (17.1km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in December
Vallans, France
- Average humidity in December: 87%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (70%).
Average rainfall in December
Vallans, France
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is November (61mm).
The driest months (with the least rainfall) are July and August (21mm).
Average rainfall days in December
Vallans, France
- Average rainfall days in December: 14.2 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is September (9.3 days).
Average snowfall in December
Vallans, France
- Average snowfall in December: 2mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Vallans, France
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Vallans, France
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Vallans, France
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is November (12 days).
Average UV index in December
Vallans, France
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in December
Vallans, France
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Vallans, France
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).
