December weather forecastTroissy, France
December
Weather in December
The first month of the winter, December, is still a chilly month in Troissy, France, with an average temperature varying between 2°C (35.6°F) and 6.3°C (43.3°F).Temperature
December signals a slight drop in average high-temperature, sliding from November's chilly 9.5°C (49.1°F) to a still frosty 6.3°C (43.3°F). Troissy's nighttime temperature in December consistently rests at a cold 2°C (35.6°F).Humidity
December is the most humid month, with an average relative humidity of 89%.Rainfall
The month with the most rainfall in Troissy is December, when the rain falls for 14.2 days and typically aggregates up to 39mm (1.54") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Troissy, in December, snow falls for 2.2 days, with typically accumulated 13mm (0.51") of snow. Throughout the year, in Troissy, there are 9.4 snowfall days, and 51mm (2.01") of snow is accumulated.Daylight
December has the shortest days of the year in Troissy, with an average of 8h and 18min of daylight.On the first day of December in Troissy, sunrise is at 08:18 and sunset at 16:50. On the last day of the month, sunrise is at 08:39 and sunset at 16:57 CET.
Sunshine
The months with the least sunshine in Troissy, France, are January and December, with an average of 3.8h of sunshine.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 value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Troissy, France
- Average high temperature in December: 6.3°C
The warmest month (with the highest average high temperature) is August (24°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in December: 2°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in December
Troissy, France
- Average pressure in December: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.5mbar).
Average wind speed in December
Troissy, France
- Average wind speed in December: 14.8km/h
The windiest month (with the highest average wind speed) is February (15.1km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in December
Troissy, France
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (73%).
Average rainfall in December
Troissy, France
- Average rainfall in December: 39mm
The wettest month (with the highest rainfall) is December (39mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in December
Troissy, France
- Average rainfall days in December: 14.2 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is September (9.7 days).
Average snowfall in December
Troissy, France
- Average snowfall in December: 13mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Troissy, France
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (2.9 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
Troissy, France
- Average daylight in December: 8h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 3h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in December
Troissy, France
- Average sunshine days in December: 13 days
The month with the most sunshine days is September (17.4 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in December
Troissy, 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
Troissy, France
- Average cloud cover in December: 62
The month with the most cloud cover is December (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 38).
Average visibility in December
Troissy, France
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, July, August and September (9km).
The months with the lowest visibility are January, May, June, October, November and December (8km).





