December weather forecastTreffort, France
December
Weather in December
December, the first month of the winter in Treffort, is also an icy month, with an average temperature varying between -1.5°C (29.3°F) and 4.1°C (39.4°F).Temperature
The arrival of December signals a subtle shift in temperature, down from a chilly 7.5°C (45.5°F) in November to a cold 4.1°C (39.4°F). In Treffort, the average nighttime temperature during December is a subzero cold -1.5°C (29.3°F).Humidity
In December, the average relative humidity is 85%.Rainfall
In Treffort, in December, it is raining for 8 days, with typically 62mm (2.44") of accumulated precipitation. Throughout the year, in Treffort, there are 133.7 rainfall days, and 588mm (23.15") of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Treffort. December is the month with the most snowfall. Snow falls for 11.4 days and accumulates 252mm (9.92") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 07:55 and sunset at 16:57. On the last day of December, in Treffort, France, sunrise is at 08:15 and sunset at 17:05 CET.
Sunshine
The average sunshine in December is 4.6h.UV index
The months with the lowest UV index in Treffort are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Treffort, France
- Average high temperature in December: 4.1°C
The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (2.4°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is July (11.6°C).
The coldest month (with the lowest average low temperature) is February (-3.6°C).
Average pressure in December
Treffort, France
- Average pressure in December: 1020.7mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in December
Treffort, France
- Average wind speed in December: 10.4km/h
The windiest month (with the highest average wind speed) is February (11.1km/h).
The calmest month (with the lowest average wind speed) is September (8km/h).
Average humidity in December
Treffort, France
- Average humidity in December: 85%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (76%).
Average rainfall in December
Treffort, France
- Average rainfall in December: 62mm
The wettest months (with the highest rainfall) are June and November (65mm).
The driest month (with the least rainfall) is February (36mm).
Average rainfall days in December
Treffort, France
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in December
Treffort, France
- Average snowfall in December: 252mm
The month with the highest snowfall is December (252mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Treffort, France
- Average snowfall days in December: 11.4 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Treffort, 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 36min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Treffort, France
- Average sunshine days in December: 15 days
The month with the most sunshine days is August (16.8 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in December
Treffort, 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, November and December (UV index 2).
Average cloud cover in December
Treffort, France
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Treffort, France
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (8km).





