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
Merry-la-Vallée's progression into December involves a gentle drop in the average high-temperature, from a cool 10.3°C (50.5°F) in November to a frosty 6.8°C (44.2°F). Merry-la-Vallée, during the nights of December, averages a temperature close to its daytime high, at a cold 2.1°C (35.8°F).Humidity
With an average relative humidity of 88%, December is the most humid month.Rainfall
In Merry-la-Vallée, in December, during 14.5 rainfall days, 49mm (1.93") of precipitation is typically accumulated. In Merry-la-Vallée, during the entire year, the rain falls for 162.5 days and collects up to 468mm (18.43") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Merry-la-Vallée, in December, during 2.4 snowfall days, 19mm (0.75") of snow is typically accumulated. Throughout the year, there are 9.1 snowfall days, and 65mm (2.56") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 08:15 and sunset at 16:56. On the last day of December, sunrise is at 08:35 and sunset at 17:04 CET.
Sunshine
In Merry-la-Vallée, France, the average sunshine in December is 4h.UV index
The months with the lowest UV index in Merry-la-Vallée, France, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
Is December cold in Merry-la-Vallée?
What is the most humid month in Merry-la-Vallée?
What is the average humidity in December in Merry-la-Vallée?
How much does it rain in Merry-la-Vallée in December?
How much does it snow in Merry-la-Vallée in December?
What is the month with the shortest days in Merry-la-Vallée?
How many hours of daylight does Merry-la-Vallée have in December?
When is the sunrise / sunset in December in Merry-la-Vallée?
How many hours of sunshine does Merry-la-Vallée have in December?
When is the lowest UV index in Merry-la-Vallée?
What is the UV index reading in December in Merry-la-Vallée?
Average temperature in December
Merry-la-Vallée, France
- Average high temperature in December: 6.8°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in December: 2.1°C
The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure in December
Merry-la-Vallée, France
- Average pressure in December: 1019.7mbar
The month with the highest atmospheric pressure is December (1019.7mbar).
The month with the lowest atmospheric pressure is November (1014.5mbar).
Average wind speed in December
Merry-la-Vallée, France
- Average wind speed in December: 14.9km/h
The windiest month (with the highest average wind speed) is February (15.4km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in December
Merry-la-Vallée, 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
Merry-la-Vallée, France
- Average rainfall in December: 49mm
The wettest month (with the highest rainfall) is May (56mm).
The driest month (with the least rainfall) is September (25mm).
Average rainfall days in December
Merry-la-Vallée, France
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in December
Merry-la-Vallée, France
- Average snowfall in December: 19mm
The month with the highest snowfall is January (24mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Merry-la-Vallée, France
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is January (3.1 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
Merry-la-Vallée, France
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Merry-la-Vallée, France
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is March (17.8 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in December
Merry-la-Vallée, 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
Merry-la-Vallée, France
- Average cloud cover in December: 60
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 35).
Average visibility in December
Merry-la-Vallée, France
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, July, August, September and October (9km).
The months with the lowest visibility are January, May, June, November and December (8km).
Merry-la-Vallée, France
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