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
As December commences, the average high-temperature subtly reduces, transitioning from a cool 10.5°C (50.9°F) in November to a chilly 7.4°C (45.3°F). Rolleboise maintains a consistent average nighttime low-temperature of 2.6°C (36.7°F) throughout December.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 87%.Rainfall
In Rolleboise, during December, the rain falls for 16.9 days and regularly aggregates up to 60mm (2.36") of precipitation. In Rolleboise, during the entire year, the rain falls for 195 days and collects up to 553mm (21.77") of precipitation.Snowfall
January through March, November and December are months with snowfall. In December, it is snowing for 1.8 days. Throughout December, 21mm (0.83") of snow is accumulated. Throughout the year, there are 9.3 snowfall days, and 73mm (2.87") of snow is accumulated.Daylight
With an average of 8h and 18min of daylight, December has the shortest days of the year in Rolleboise.On the first day of December in Rolleboise, sunrise is at 08:26 and sunset at 16:58. On the last day of the month, sunrise is at 08:47 and sunset at 17:06 CET.
Sunshine
In Rolleboise, the average sunshine in December is 4.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rolleboise. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What are December temperatures in Rolleboise?
What are the most humid months in Rolleboise?
What is the average humidity in December in Rolleboise?
How many days does it rain in December in Rolleboise?
How many days does it snow in December in Rolleboise?
What is the month with the shortest days in Rolleboise?
What is the average length of the day in December in Rolleboise?
When are sunrise and sunset in December in Rolleboise?
How many hours of sunshine does Rolleboise have in December?
What are the months with the lowest UV index in Rolleboise?
How high is the UV index in December in Rolleboise?
Average temperature in December
Rolleboise, France
- Average high temperature in December: 7.4°C
The warmest month (with the highest average high temperature) is August (24°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 2.6°C
The month with the highest average low temperature is August (13.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in December
Rolleboise, France
- Average pressure in December: 1018mbar
The month with the highest atmospheric pressure is September (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in December
Rolleboise, France
- Average wind speed in December: 16.2km/h
The windiest month (with the highest average wind speed) is February (16.5km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in December
Rolleboise, France
- Average humidity in December: 87%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (72%).
Average rainfall in December
Rolleboise, France
- Average rainfall in December: 60mm
The wettest month (with the highest rainfall) is June (69mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in December
Rolleboise, France
- Average rainfall days in December: 16.9 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is September (12.8 days).
Average snowfall in December
Rolleboise, France
- Average snowfall in December: 21mm
The month with the highest snowfall is February (24mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Rolleboise, France
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (3.2 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
Rolleboise, France
- Average daylight in December: 8h and 2min
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: 4h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Rolleboise, France
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in December
Rolleboise, 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
Rolleboise, France
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 40).
Average visibility in December
Rolleboise, France
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
Rolleboise, France
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