Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The beginning of December subtly marks a decrease in the average high-temperature, transitioning from a cool 10°C (50°F) in November to a chilly 6.7°C (44.1°F). Silly-le-Long in December experiences a minor decline in temperature, with an average low of 2.5°C (36.5°F) at night.Humidity
The most humid month in Silly-le-Long is December, with an average relative humidity of 88%.Rainfall
December is the month with the most rainfall in Silly-le-Long. Rain falls for 17.8 days and accumulates 65mm (2.56") of precipitation.Snowfall
January through March, November and December are months with snowfall. In Silly-le-Long, in December, snow falls for 2.6 days, with typically accumulated 20mm (0.79") of snow. In Silly-le-Long, France, during the entire year, snow falls for 11.1 days and aggregates up to 84mm (3.31") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 08:22 and sunset at 16:53. On the last day of December, sunrise is at 08:43 and sunset at 17:00 CET.
Sunshine
In December, the average sunshine is 4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 2 in December transforms into this advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
How cold is it in Silly-le-Long in December?
What is the most humid month in Silly-le-Long?
What is the average humidity in December in Silly-le-Long?
What is the wettest month in Silly-le-Long?
How much does it rain in Silly-le-Long in December?
How many days does it snow in December in Silly-le-Long?
What is the month with the shortest days in Silly-le-Long?
How many hours of daylight does Silly-le-Long have in December?
When are sunrise and sunset in December in Silly-le-Long?
How long on average sun shines in December in Silly-le-Long?
When is the lowest UV index in Silly-le-Long?
What is the UV index reading in December in Silly-le-Long?
Average temperature in December
Silly-le-Long, France
- Average high temperature in December: 6.7°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in December: 2.5°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (1.2°C).
Average pressure in December
Silly-le-Long, France
- Average pressure in December: 1018.2mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).
Average wind speed in December
Silly-le-Long, France
- Average wind speed in December: 15.6km/h
The windiest month (with the highest average wind speed) is February (15.9km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in December
Silly-le-Long, France
- Average humidity in December: 88%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (71%).
Average rainfall in December
Silly-le-Long, France
- Average rainfall in December: 65mm
The wettest month (with the highest rainfall) is December (65mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in December
Silly-le-Long, France
- Average rainfall days in December: 17.8 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is September (12.5 days).
Average snowfall in December
Silly-le-Long, France
- Average snowfall in December: 20mm
The month with the highest snowfall is January (33mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Silly-le-Long, France
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is January (3.4 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
Silly-le-Long, France
- Average daylight in December: 8h and 2min
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 0min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Silly-le-Long, France
- Average sunshine days in December: 9.2 days
The month with the most sunshine days is September (14.7 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in December
Silly-le-Long, 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
Silly-le-Long, France
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 38).
Average visibility in December
Silly-le-Long, France
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).
Silly-le-Long, France
Weather forecast for your location
2. Allow the app to use your location
