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
December
Weather in December
Temperature
In December, the meteorological conditions change slightly, with the average high-temperature moving from a chilly 7.5°C (45.5°F) in November to a cold 4.1°C (39.4°F). Throughout December, a steady low-temperature average of -2.4°C (27.7°F) is noted.Humidity
In December, the average relative humidity is 82%.Rainfall
In December, the rain falls for 4.5 days. Throughout December, 80mm (3.15") of precipitation is accumulated. Throughout the year, there are 108.8 rainfall days, and 640mm (25.2") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. The month with the most snowfall is December, when snow falls for 9.2 days and typically aggregates up to 482mm (18.98") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of December, sunrise is at 07:54 and sunset at 16:56. On the last day of the month, sunrise is at 08:14 and sunset at 17:05 CET.
Sunshine
December has the least sunshine of the year, with an average of 5.6h 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 estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
How many days does it rain in December?
When does it snow the most?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Siévoz have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine in Siévoz?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Siévoz, France
- Average high temperature in December: 4.1°C
The warmest month (with the highest average high temperature) is August (22.4°C).
The month with the lowest average high temperature is January (2.6°C).
- Average low temperature in December: -2.4°C
The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-4.2°C).
Average pressure in December
Siévoz, France
- Average pressure in December: 1020.3mbar
The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).
Average wind speed in December
Siévoz, France
- Average wind speed in December: 10km/h
The windiest month (with the highest average wind speed) is February (10.9km/h).
The calmest month (with the lowest average wind speed) is September (8km/h).
Average humidity in December
Siévoz, France
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (70%).
Average rainfall in December
Siévoz, France
- Average rainfall in December: 80mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is February (38mm).
Average rainfall days in December
Siévoz, France
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is June (14.7 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in December
Siévoz, France
- Average snowfall in December: 482mm
The month with the highest snowfall is December (482mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Siévoz, France
- Average snowfall days in December: 9.2 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Siévoz, France
- Average daylight in December: 8h and 5min
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: 5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Siévoz, France
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is October (22.2 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in December
Siévoz, 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
Siévoz, France
- Average cloud cover in December: 38
The months with the most cloud cover are February and November (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Siévoz, France
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
