December weather forecastTrélans, France
December
Weather in December
The first month of the winter, December, is still a cold month in Trélans, France, with an average temperature ranging between max 4.8°C (40.6°F) and min -1.3°C (29.7°F).Temperature
The start of December marks an average high-temperature of a wintry 4.8°C (40.6°F), hardly distinguishable from the conditions in November. During the nights in December, Trélans observes an average low-temperature of -1.3°C (29.7°F).Humidity
The average relative humidity in December in Trélans is 87%.Rainfall
In December, in Trélans, France, the rain falls for 8.7 days. Throughout December, 50mm (1.97") of precipitation is accumulated. Throughout the year, in Trélans, there are 138.7 rainfall days, and 637mm (25.08") of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 8.6 days. Throughout December, 139mm (5.47") of snow is accumulated. Throughout the year, there are 53 snowfall days, and 938mm (36.93") of snow is accumulated.Daylight
December has the shortest days of the year in Trélans, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 08:04 and sunset at 17:09. On the last day of December, in Trélans, sunrise is at 08:23 and sunset at 17:17 CET.
Sunshine
In Trélans, France, the average sunshine in December is 4.2h.UV index
January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Trélans. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Trélans, France
- Average high temperature in December: 4.8°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 (3.4°C).
- Average low temperature in December: -1.3°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-3.3°C).
Average pressure in December
Trélans, France
- Average pressure in December: 1021.3mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in December
Trélans, France
- Average wind speed in December: 11.9km/h
The windiest month (with the highest average wind speed) is February (12.5km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in December
Trélans, France
- Average humidity in December: 87%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Trélans, France
- Average rainfall in December: 50mm
The wettest month (with the highest rainfall) is November (103mm).
The driest month (with the least rainfall) is August (31mm).
Average rainfall days in December
Trélans, France
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in December
Trélans, France
- Average snowfall in December: 139mm
The month with the highest snowfall is January (213mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Trélans, France
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Trélans, France
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 0min).
Average sunshine days in December
Trélans, France
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is November (11.4 days).
Average UV index in December
Trélans, France
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in December
Trélans, France
- Average cloud cover in December: 61
The month with the most cloud cover is November (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Trélans, France
- Average visibility in December: 7km
The month with the highest visibility is August (9km).
The months with the lowest visibility are January, October, November and December (7km).
