December weather forecastViroflay, France
December
Weather in December
The first month of the winter, December, is also a frosty month in Viroflay, France, with an average temperature ranging between max 7.3°C (45.1°F) and min 3°C (37.4°F).Temperature
Viroflay's December weather shows a modest shift in high-temperatures, falling from November's fresh 10.5°C (50.9°F) to a frosty 7.3°C (45.1°F). Viroflay's nighttime temperatures in December reveal a minimal variation from the daytime highs, averaging at a wintry 3°C (37.4°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 86%.Rainfall
In Viroflay, France, in December, during 13.9 rainfall days, 43mm (1.69") of precipitation is typically accumulated. In Viroflay, during the entire year, the rain falls for 154.9 days and collects up to 384mm (15.12") of precipitation.Snowfall
January through March, November and December are months with snowfall in Viroflay. In Viroflay, France, during December, snow falls for 1.1 days and regularly aggregates up to 12mm (0.47") of snow. Throughout the year, there are 4.5 snowfall days, and 37mm (1.46") of snow is accumulated.Daylight
With an average of 8h and 18min of daylight, December has the shortest days of the year in Viroflay.On the first day of the month, sunrise is at 08:23 and sunset at 16:57. On the last day of December, sunrise is at 08:44 and sunset at 17:04 CET.
Sunshine
In December, the average sunshine in Viroflay is 4.3h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: In December, an average UV index of 2 transforms into the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Viroflay, France
- Average high temperature in December: 7.3°C
The warmest month (with the highest average high temperature) is August (24.6°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in December: 3°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in December
Viroflay, France
- Average pressure in December: 1018.3mbar
The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).
Average wind speed in December
Viroflay, France
- Average wind speed in December: 15.1km/h
The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in December
Viroflay, France
- Average humidity in December: 86%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Viroflay, France
- Average rainfall in December: 43mm
The wettest month (with the highest rainfall) is June (46mm).
The driest month (with the least rainfall) is September (18mm).
Average rainfall days in December
Viroflay, France
- Average rainfall days in December: 13.9 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is September (9.6 days).
Average snowfall in December
Viroflay, France
- Average snowfall in December: 12mm
The month with the highest snowfall is January (13mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Viroflay, France
- Average snowfall days in December: 1.1 days
The months with the highest number of snowfall days are January and February (1.3 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
Viroflay, France
- Average daylight in December: 8h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Viroflay, France
- Average sunshine days in December: 14.5 days
The months with the most sunshine days are March and September (18.5 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Viroflay, France
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Viroflay, France
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in December
Viroflay, 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).
