December weather forecastTrélon, France
December
Weather in December
December, the first month of the winter in Trélon, is still a cold month, with an average temperature fluctuating between 1.3°C (34.3°F) and 5.2°C (41.4°F).Temperature
December is marked by a subtle drop in average high-temperatures, transitioning from a frosty 8.7°C (47.7°F) in November to a wintry 5.2°C (41.4°F). Trélon nights in December witness a mild cool down to an average temperature of 1.3°C (34.3°F).Humidity
The most humid month is December, with an average relative humidity of 91%.Rainfall
December is the month with the most rainfall. Rain falls for 16 days and accumulates 71mm (2.8") of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Trélon, France, during December, snow falls for 5.8 days and regularly aggregates up to 65mm (2.56") of snow. In Trélon, France, during the entire year, snow falls for 27.2 days and aggregates up to 247mm (9.72") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 12min of daylight.On the first day of the month, sunrise is at 08:21 and sunset at 16:44. On the last day of December, in Trélon, sunrise is at 08:42 and sunset at 16:51 CET.
Sunshine
The months with the least sunshine are January and December, with an average of 3.4h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes 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:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Trélon, France
- Average high temperature in December: 5.2°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (3.9°C).
- Average low temperature in December: 1.3°C
The month with the highest average low temperature is August (12.4°C).
The coldest month (with the lowest average low temperature) is January (-0.2°C).
Average pressure in December
Trélon, France
- Average pressure in December: 1017.1mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in December
Trélon, France
- Average wind speed in December: 17.4km/h
The windiest month (with the highest average wind speed) is December (17.4km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in December
Trélon, France
- Average humidity in December: 91%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are April and August (79%).
Average rainfall in December
Trélon, France
- Average rainfall in December: 71mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (31mm).
Average rainfall days in December
Trélon, France
- Average rainfall days in December: 16 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (12.4 days).
Average snowfall in December
Trélon, France
- Average snowfall in December: 65mm
The month with the highest snowfall is January (68mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Trélon, France
- Average snowfall days in December: 5.8 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Trélon, France
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 3h and 24min
The month with the most sunshine is July (Average sunshine: 8h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 24min).
Average sunshine days in December
Trélon, France
- Average sunshine days in December: 9.4 days
The months with the most sunshine days are April and October (13.4 days).
The month with the least sunshine days is December (9.4 days).
Average UV index in December
Trélon, 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, November and December (UV index 2).
Average cloud cover in December
Trélon, France
- Average cloud cover in December: 68
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in December
Trélon, France
- Average visibility in December: 8km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are January, February, May, June, July, September, October, November and December (8km).





