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 arrival of December is marked by an average high-temperature of a frosty 9.1°C (48.4°F), bearing a close resemblance to November. During the nights of December, Clayes maintains an almost steady temperature with an average low of 4.2°C (39.6°F).Humidity
The most humid month in Clayes, France, is December, with an average relative humidity of 88%.Rainfall
In Clayes, in December, it is raining for 12.2 days, with typically 34mm (1.34") of accumulated precipitation. In Clayes, during the entire year, the rain falls for 150.1 days and collects up to 330mm (12.99") of precipitation.Snowfall
Months with snowfall in Clayes are January through April, November and December. The months with the most snowfall are February through April and December, with an average 2mm (0.08") of accumulated snow.Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 08:37 and sunset at 17:15. On the last day of the month, sunrise is at 08:57 and sunset at 17:23 CET.
Sunshine
The average sunshine in December in Clayes is 4.6h.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 health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. 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. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Clayes?
What is the most humid month in Clayes?
What is the average humidity in December in Clayes?
How much does it rain in Clayes in December?
What is the snowiest month in Clayes?
How many days does it snow in December in Clayes?
What is the month with the shortest days in Clayes?
How many hours of daylight does Clayes have in December?
What time are sunrise and sunset in December in Clayes?
How long on average sun shines in December in Clayes?
When is the lowest UV index in Clayes?
What is the UV index reading in December in Clayes?
Average temperature in December
Clayes, France
- Average high temperature in December: 9.1°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (8.4°C).
- Average low temperature in December: 4.2°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).
Average pressure in December
Clayes, France
- Average pressure in December: 1018.4mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in December
Clayes, France
- Average wind speed in December: 16.8km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in December
Clayes, France
- Average humidity in December: 88%
The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are July, August and September (78%).
Average rainfall in December
Clayes, France
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is June (39mm).
The driest month (with the least rainfall) is September (12mm).
Average rainfall days in December
Clayes, France
- Average rainfall days in December: 12.2 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is September (8.4 days).
Average snowfall in December
Clayes, France
- Average snowfall in December: 2mm
The months with the highest snowfall are February, March, April and December (2mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Clayes, France
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (0.8 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
Clayes, France
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Clayes, France
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in December
Clayes, 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
Clayes, France
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 41).
Average visibility in December
Clayes, France
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, June, July, October, November and December (9km).
The months with the lowest visibility are May, August and September (8km).
Clayes, France
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