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
With December's onset, the weather reveals a slight temperature decrease, transitioning from a frosty 9.5°C (49.1°F) in November to a still chilly 6.2°C (43.2°F). During December, Rousies perceives a slight decrease in temperature from daytime highs, settling at an average low of 2.2°C (36°F).Humidity
With an average relative humidity of 89%, December is the most humid month in Rousies.Rainfall
The month with the most rainfall is December, when the rain falls for 15.4 days and typically aggregates up to 60mm (2.36") of precipitation.Snowfall
January through March, October through December are months with snowfall in Rousies. In Rousies, France, during December, snow falls for 2.5 days and regularly aggregates up to 20mm (0.79") of snow. Throughout the year, in Rousies, there are 10.3 snowfall days, and 87mm (3.43") of snow is accumulated.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year.On the first day of December in Rousies, sunrise is at 08:22 and sunset at 16:43. On the last day of the month, sunrise is at 08:43 and sunset at 16:50 CET.
Sunshine
January and December, with an average of 3.7h of sunshine, are months with the least sunshine in Rousies.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rousies. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
How cold is December in Rousies?
What is the most humid month in Rousies?
What is the average humidity in December in Rousies?
What is the rainiest month in Rousies?
How many days does it rain in December in Rousies?
How much does it snow in Rousies in December?
What is the month with the shortest days in Rousies?
What is the average length of the day in December in Rousies?
What time are sunrise and sunset in December in Rousies?
What is the month with the least sunshine in Rousies?
How many hours of sunshine does Rousies have in December?
What are the months with the lowest UV index in Rousies?
What is the UV index reading in December in Rousies?
Average temperature in December
Rousies, France
- Average high temperature in December: 6.2°C
The warmest months (with the highest average high temperature) are July and August (22.7°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in December: 2.2°C
The months with the highest average low temperature are July and August (12.9°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in December
Rousies, France
- Average pressure in December: 1016.7mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.6mbar).
Average wind speed in December
Rousies, France
- Average wind speed in December: 18.8km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).
Average humidity in December
Rousies, France
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Rousies, France
- Average rainfall in December: 60mm
The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in December
Rousies, France
- Average rainfall days in December: 15.4 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is March (12.8 days).
Average snowfall in December
Rousies, France
- Average snowfall in December: 20mm
The month with the highest snowfall is January (31mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Rousies, France
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rousies, France
- Average daylight in December: 8h and 1min
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 6min).
- Average sunshine in December: 3h and 4min
The months with the most sunshine are July and August (Average sunshine: 8h and 48min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in December
Rousies, France
- Average sunshine days in December: 12 days
The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Rousies, 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
Rousies, France
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are April and August (Cloud cover 43).
Average visibility in December
Rousies, France
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).
Rousies, France
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