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
A mild shift in the average high-temperature occurs in December, reducing from a cool 10.1°C (50.2°F) in November to a chilly 6.8°C (44.2°F). The December average low temperature, marginally lower than the daytime high, records at a wintry 2.7°C (36.9°F).Humidity
January and December, with an average relative humidity of 87%, are the most humid months in Chantilly.Rainfall
December is the month with the most rainfall in Chantilly. Rain falls for 17.7 days and accumulates 62mm (2.44") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Chantilly, France, in December, snow falls for 2.5 days, with typically accumulated 17mm (0.67") of snow. Throughout the year, there are 11.3 snowfall days, and 93mm (3.66") of snow is accumulated.Daylight
With an average of 8h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:24 and sunset at 16:54. On the last day of December, in Chantilly, sunrise is at 08:44 and sunset at 17:01 CET.
Sunshine
In December, the average sunshine in Chantilly is 4.2h.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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
Is it cold in Chantilly during December?
What are the most humid months in Chantilly?
What is the average humidity in December in Chantilly?
What is the rainiest month in Chantilly?
How much does it rain in Chantilly in December?
How much does it snow in Chantilly in December?
What is the month with the shortest days in Chantilly?
How many hours of daylight does Chantilly have in December?
When are sunrise and sunset in December in Chantilly?
How many hours of sunshine does Chantilly have in December?
When is the lowest UV index in Chantilly?
How high is the UV index in December in Chantilly?
Average temperature in December
Chantilly, France
- Average high temperature in December: 6.8°C
The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in December: 2.7°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in December
Chantilly, France
- Average pressure in December: 1017.8mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in December
Chantilly, France
- Average wind speed in December: 15.6km/h
The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in December
Chantilly, 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 (72%).
Average rainfall in December
Chantilly, France
- Average rainfall in December: 62mm
The wettest month (with the highest rainfall) is December (62mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in December
Chantilly, France
- Average rainfall days in December: 17.7 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is September (12 days).
Average snowfall in December
Chantilly, France
- Average snowfall in December: 17mm
The month with the highest snowfall is January (36mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Chantilly, France
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is February (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
Chantilly, France
- Average daylight in December: 8h and 2min
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 18min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Chantilly, France
- Average sunshine days in December: 8.3 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in December
Chantilly, 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
Chantilly, France
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in December
Chantilly, 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).
Chantilly, France
Weather forecast for your location
2. Allow the app to use your location
