December weather forecastVallères, France
December
Weather in December
The first month of the winter, December, is also a frosty month in Vallères, France, with temperature in the range of an average high of 8.2°C (46.8°F) and an average low of 3.5°C (38.3°F).Temperature
With the commencement of December, Vallères records a moderate temperature decline, with the average high easing from November's fresh 11.3°C (52.3°F) to a frosty 8.2°C (46.8°F). Vallères registers a gentle descent to an average nighttime low of 3.5°C (38.3°F) in December from its daytime highs.Humidity
The months with the highest humidity in Vallères are January and December, with an average relative humidity of 87%.Rainfall
The months with the most rainfall in Vallères are May, November and December, with an average 55mm (2.17") of precipitation.Snowfall
Months with snowfall in Vallères are January through March, November and December. In Vallères, in December, snow falls for 1.1 days, with typically accumulated 3mm (0.12") of snow. In Vallères, during the entire year, snow falls for 4.8 days and aggregates up to 26mm (1.02") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 08:24 and sunset at 17:09. On the last day of the month, sunrise is at 08:44 and sunset at 17:17 CET.
Sunshine
In Vallères, the average sunshine in December is 4.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Vallères. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Vallères, France
- Average high temperature in December: 8.2°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in December: 3.5°C
The months with the highest average low temperature are July and August (14.3°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).
Average pressure in December
Vallères, France
- Average pressure in December: 1019.5mbar
The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed in December
Vallères, France
- Average wind speed in December: 16.5km/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
Vallères, France
- Average humidity in December: 87%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Vallères, France
- Average rainfall in December: 55mm
The wettest months (with the highest rainfall) are May, November and December (55mm).
The driest month (with the least rainfall) is August (28mm).
Average rainfall days in December
Vallères, France
- Average rainfall days in December: 14.2 days
The month with the highest number of rainy days is May (16.8 days).
The months with the least rainy days are August and September (10.7 days).
Average snowfall in December
Vallères, France
- Average snowfall in December: 3mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Vallères, France
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is January (1.6 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
Vallères, France
- Average daylight in December: 8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Vallères, France
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is September (17.6 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in December
Vallères, France
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Vallères, France
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in December
Vallères, France
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
