December weather forecastCailly, France
December
Weather in December
December, the first month of the winter in Cailly, is still a chilly month, with temperature in the range of an average high of 7.3°C (45.1°F) and an average low of 2.8°C (37°F).Temperature
December brings an average high-temperature of a frosty 7.3°C (45.1°F), nearly identical to the preceding month. December nights reflect a consistent temperature dip to a wintry 2.8°C (37°F), a slight descent from daytime peaks.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 88%.Rainfall
In Cailly, in December, during 13.8 rainfall days, 43mm (1.69") of precipitation is typically accumulated. In Cailly, during the entire year, the rain falls for 153.9 days and collects up to 400mm (15.75") of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Cailly, during December, snow falls for 1.2 days and regularly aggregates up to 19mm (0.75") of snow. Throughout the year, there are 7.4 snowfall days, and 78mm (3.07") of snow is accumulated.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year in Cailly, France.On the first day of December, sunrise is at 08:30 and sunset at 16:57. On the last day of the month, sunrise is at 08:51 and sunset at 17:05 CET.
Sunshine
The average sunshine in December is 4.1h.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 hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Notice! The UV radiation of the Sun can be intensified nearly twofold 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
Cailly, France
- Average high temperature in December: 7.3°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 2.8°C
The month with the highest average low temperature is August (13.2°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in December
Cailly, France
- Average pressure in December: 1017.9mbar
The month with the highest atmospheric pressure is September (1018.1mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in December
Cailly, France
- Average wind speed in December: 17.2km/h
The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in December
Cailly, France
- Average humidity in December: 88%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Cailly, France
- Average rainfall in December: 43mm
The wettest month (with the highest rainfall) is June (48mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in December
Cailly, France
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is January (14.8 days).
The month with the least rainy days is September (9.7 days).
Average snowfall in December
Cailly, France
- Average snowfall in December: 19mm
The month with the highest snowfall is January (21mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Cailly, France
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is February (2.8 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
Cailly, France
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 4h and 6min
The months with the most sunshine are June and July (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Cailly, France
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is September (17.8 days).
The month with the least sunshine days is January (11.6 days).
Average UV index in December
Cailly, France
- Average UV index in December: 2
The months with the highest UV index are June and 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
Cailly, France
- Average cloud cover in December: 58
The month with the most cloud cover is November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 41).
Average visibility in December
Cailly, France
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, July, August, September, October and December (9km).
The months with the lowest visibility are January, May, June and November (8km).
