December weather forecastRoullours, France
December
Weather in December
December, the first month of the winter in Roullours, is also a frosty month, with an average temperature fluctuating between 8.8°C (47.8°F) and 4.9°C (40.8°F).Temperature
With the start of December, Roullours measures an average high-temperature of a frosty 8.8°C (47.8°F), not significantly differing from November's 11°C (51.8°F). In Roullours, nights during December observe an average temperature decrease to a wintry 4.9°C (40.8°F).Humidity
The months with the highest humidity in Roullours are January, November and December, with an average relative humidity of 86%.Rainfall
The month with the most rainfall in Roullours is December, when the rain falls for 18.4 days and typically aggregates up to 80mm (3.15") of precipitation.Snowfall
January through April, November and December are months with snowfall in Roullours. In December, in Roullours, it is snowing for 1.4 days. Throughout December, 10mm (0.39") of snow is accumulated. Throughout the year, there are 7.7 snowfall days, and 43mm (1.69") of snow is accumulated.Daylight
The month with the shortest days in Roullours is December, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 08:35 and sunset at 17:09. On the last day of December, in Roullours, sunrise is at 08:56 and sunset at 17:16 CET.
Sunshine
In December, the average sunshine in Roullours is 4.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Roullours, France. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Roullours, France
- Average high temperature in December: 8.8°C
The warmest month (with the highest average high temperature) is August (21°C).
The month with the lowest average high temperature is January (7.7°C).
- Average low temperature in December: 4.9°C
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure in December
Roullours, France
- Average pressure in December: 1017.3mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).
Average wind speed in December
Roullours, France
- Average wind speed in December: 20.9km/h
The windiest month (with the highest average wind speed) is December (20.9km/h).
The calmest month (with the lowest average wind speed) is August (13.2km/h).
Average humidity in December
Roullours, France
- Average humidity in December: 86%
The months with the highest relative humidity are January, November and December (86%).
The months with the lowest relative humidity are July, August and September (81%).
Average rainfall in December
Roullours, France
- Average rainfall in December: 80mm
The wettest month (with the highest rainfall) is December (80mm).
The driest month (with the least rainfall) is September (25mm).
Average rainfall days in December
Roullours, France
- Average rainfall days in December: 18.4 days
The month with the highest number of rainy days is January (19.3 days).
The month with the least rainy days is September (13.1 days).
Average snowfall in December
Roullours, France
- Average snowfall in December: 10mm
The month with the highest snowfall is February (15mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Roullours, France
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Roullours, 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 6min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and November (Average sunshine: 3h and 54min).
Average sunshine days in December
Roullours, France
- Average sunshine days in December: 7.7 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in December
Roullours, France
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Roullours, France
- Average cloud cover in December: 60
The months with the most cloud cover are January and November (Cloud cover 61).
The months with the least cloud cover are July and September (Cloud cover 42).
Average visibility in December
Roullours, 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).
