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 beginning of December brings a minor change in the average high-temperature, shifting from a chilly 8.2°C (46.8°F) in November to a cold 4.8°C (40.6°F). During December's nights, Jarny notes a minor temperature decline, reaching an average of 0.8°C (33.4°F).Humidity
With an average relative humidity of 90%, December is the most humid month.Rainfall
The month with the most rainfall is December, when the rain falls for 16.5 days and typically aggregates up to 71mm (2.8") of precipitation.Snowfall
January through March, October through December are months with snowfall. December is the month with the most snowfall in Jarny. Snow falls for 6.2 days and accumulates 55mm (2.17") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 18min of daylight.On the first day of December in Jarny, sunrise is at 08:10 and sunset at 16:41. On the last day of the month, sunrise is at 08:31 and sunset at 16:48 CET.
Sunshine
December has the least sunshine of the year, with an average of 3.2h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the UV index of 2 transforms into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
Is December cold in Jarny?
What is the most humid month in Jarny?
What is the average humidity in December in Jarny?
What is the wettest month in Jarny?
How many days does it rain in December in Jarny?
When does it snow the most in Jarny?
How many days does it snow in December in Jarny?
What is the month with the shortest days in Jarny?
How many hours of daylight does Jarny have in December?
When are sunrise and sunset in December in Jarny?
What is the month with the least sunshine in Jarny?
How many hours of sunshine does Jarny have in December?
When is the lowest UV index in Jarny?
What is the UV index intensity in December in Jarny?
Average temperature in December
Jarny, France
- Average high temperature in December: 4.8°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in December: 0.8°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.7°C).
Average pressure in December
Jarny, France
- Average pressure in December: 1018.6mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in December
Jarny, France
- Average wind speed in December: 14.9km/h
The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in December
Jarny, France
- Average humidity in December: 90%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Jarny, France
- Average rainfall in December: 71mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in December
Jarny, France
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is September (11.7 days).
Average snowfall in December
Jarny, France
- Average snowfall in December: 55mm
The month with the highest snowfall is December (55mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Jarny, France
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is January (7.1 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
Jarny, France
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in December
Jarny, France
- Average sunshine days in December: 8.4 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in December
Jarny, 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
Jarny, France
- Average cloud cover in December: 68
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Jarny, France
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
Jarny, France
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