December weather forecastRouilly, France
December
Weather in December
The first month of the winter, December, is still a chilly month in Rouilly, France, with an average temperature fluctuating between 6.7°C (44.1°F) and 2.6°C (36.7°F).Temperature
In December, the average high-temperature marginally decreases from a fresh 10.2°C (50.4°F) in November to a frosty 6.7°C (44.1°F). Rouilly, during December nights, observes a steady temperature, averaging at a cold 2.6°C (36.7°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 87%.Rainfall
In Rouilly, in December, it is raining for 14.6 days, with typically 51mm (2.01") of accumulated precipitation. In Rouilly, during the entire year, the rain falls for 175.7 days and collects up to 489mm (19.25") of precipitation.Snowfall
January through March, November and December are months with snowfall. In December, in Rouilly, France, it is snowing for 1.9 days. Throughout December, 19mm (0.75") of snow is accumulated. In Rouilly, during the entire year, snow falls for 8.4 days and aggregates up to 72mm (2.83") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 08:18 and sunset at 16:53. On the last day of December, in Rouilly, sunrise is at 08:39 and sunset at 17:01 CET.
Sunshine
In December, the average sunshine is 3.9h.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 of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 during December translates into the following guidance:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rouilly, France
- Average high temperature in December: 6.7°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in December: 2.6°C
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is January (1.5°C).
Average pressure in December
Rouilly, France
- Average pressure in December: 1018.6mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1013.7mbar).
Average wind speed in December
Rouilly, France
- Average wind speed in December: 15.2km/h
The windiest month (with the highest average wind speed) is February (15.6km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in December
Rouilly, 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 (70%).
Average rainfall in December
Rouilly, France
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in December
Rouilly, France
- Average rainfall days in December: 14.6 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is September (11.3 days).
Average snowfall in December
Rouilly, France
- Average snowfall in December: 19mm
The month with the highest snowfall is January (28mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Rouilly, France
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is February (2.8 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
Rouilly, France
- Average daylight in December: 8h and 24min
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 24min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Rouilly, France
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in December
Rouilly, France
- Average UV index in December: 2
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, November and December (UV index 2).
Average cloud cover in December
Rouilly, France
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 36).
Average visibility in December
Rouilly, France
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
