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
The start of December comes with a small reduction in the average high-temperature, subtly receding from a fresh 10.2°C (50.4°F) in November to a frosty 6.4°C (43.5°F). Nighttime readings during December register a minimal drop from daytime highs, averaging at an icy 1.5°C (34.7°F).Humidity
December is the most humid month, with an average relative humidity of 87%.Rainfall
In Illiat, during December, the rain falls for 16.5 days and regularly aggregates up to 80mm (3.15") of precipitation. In Illiat, during the entire year, the rain falls for 192.1 days and collects up to 786mm (30.94") of precipitation.Snowfall
Months with snowfall in Illiat are January through March, October through December. In Illiat, in December, snow falls for 4 days, with typically accumulated 31mm (1.22") of snow. Throughout the year, there are 18.6 snowfall days, and 160mm (6.3") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 08:02 and sunset at 16:56. On the last day of December, sunrise is at 08:22 and sunset at 17:04 CET.
Sunshine
In Illiat, France, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index in Illiat are January, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
How cold is it in Illiat in December?
What is the most humid month in Illiat?
What is the average humidity in December in Illiat?
How many days does it rain in December in Illiat?
How many days does it snow in December in Illiat?
What is the month with the shortest days in Illiat?
How many hours of daylight does Illiat have in December?
What time are sunrise and sunset in December in Illiat?
How long on average sun shines in December in Illiat?
What are the months with the lowest UV index in Illiat?
What is the UV index intensity in December in Illiat?
Average temperature in December
Illiat, France
- Average high temperature in December: 6.4°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (5.5°C).
- Average low temperature in December: 1.5°C
The month with the highest average low temperature is July (14.2°C).
The coldest month (with the lowest average low temperature) is February (0.1°C).
Average pressure in December
Illiat, France
- Average pressure in December: 1021.2mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Illiat, France
- Average wind speed in December: 10.6km/h
The windiest month (with the highest average wind speed) is February (11.6km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in December
Illiat, France
- Average humidity in December: 87%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Illiat, France
- Average rainfall in December: 80mm
The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is September (40mm).
Average rainfall days in December
Illiat, France
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is September (12.2 days).
Average snowfall in December
Illiat, France
- Average snowfall in December: 31mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Illiat, France
- Average snowfall days in December: 4 days
The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Illiat, France
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Illiat, France
- Average sunshine days in December: 10.9 days
The month with the most sunshine days is October (14.7 days).
The month with the least sunshine days is May (7.3 days).
Average UV index in December
Illiat, France
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in December
Illiat, France
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Illiat, France
- Average visibility in December: 8km
The months with the highest visibility are March, April, June, July and August (9km).
The months with the lowest visibility are January, February, May, September, October, November and December (8km).
Illiat, France
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