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
In the transition to December, Le Chesnay observes a minor drop in the average high-temperature, shifting from a cool 10.5°C (50.9°F) in November to a chilly 7.4°C (45.3°F). In December, a low-temperature average of 3°C (37.4°F) is characteristic of Le Chesnay, marking a minor shift from daytime temperatures.Humidity
January and December, with an average relative humidity of 86%, are the most humid months.Rainfall
In December, the rain falls for 12.5 days. Throughout December, 31mm (1.22") of precipitation is accumulated. Throughout the year, in Le Chesnay, France, there are 147 rainfall days, and 321mm (12.64") of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. The month with the most snowfall is December, when snow falls for 1.9 days and typically aggregates up to 18mm (0.71") 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 08:23 and sunset at 16:57. On the last day of December, in Le Chesnay, sunrise is at 08:44 and sunset at 17:04 CET.
Sunshine
In Le Chesnay, the average sunshine in December is 4.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Le Chesnay. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
What are December temperatures in Le Chesnay?
What are the most humid months in Le Chesnay?
What is the average humidity in December in Le Chesnay?
How much does it rain in Le Chesnay in December?
What is the snowiest month in Le Chesnay?
How much does it snow in Le Chesnay in December?
What is the month with the shortest days in Le Chesnay?
What is the average length of the day in December in Le Chesnay?
When is the sunrise / sunset in December in Le Chesnay?
How many hours of sunshine does Le Chesnay have in December?
What is the month with the lowest UV index in Le Chesnay?
What is the UV index intensity in December in Le Chesnay?
Average temperature in December
Le Chesnay, France
- Average high temperature in December: 7.4°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in December: 3°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in December
Le Chesnay, 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 (1013.3mbar).
Average wind speed in December
Le Chesnay, France
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (10.2km/h).
Average humidity in December
Le Chesnay, France
- Average humidity in December: 86%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Le Chesnay, France
- Average rainfall in December: 31mm
The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in December
Le Chesnay, France
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is September (9 days).
Average snowfall in December
Le Chesnay, France
- Average snowfall in December: 18mm
The month with the highest snowfall is December (18mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Le Chesnay, France
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is January (2.3 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
Le Chesnay, 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 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Le Chesnay, France
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in December
Le Chesnay, France
- Average UV index in December: 2
The months with the highest UV index are May, 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
Le Chesnay, France
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 38).
Average visibility in December
Le Chesnay, 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).
Le Chesnay, France
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