December weather forecastJarny, France

December

Weather in December

December, the first month of the winter in Jarny, is still a cold month, with an average temperature varying between 0.8°C (33.4°F) and 4.8°C (40.6°F).

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.

Updated: Feb 6, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Jarny, 4.8°C (40.6°F) is the average high-temperature and 0.8°C (33.4°F) is the average low-temperature during December.

The most humid month is December, with an average relative humidity of 90%.

In Jarny, France, the average relative humidity in December is 90%.

The month with the most rainfall in Jarny is December, when the rain falls for 16.5 days and typically aggregates up to 71mm (2.8") of precipitation.

In Jarny, during December, the rain falls for 16.5 days and regularly aggregates up to 71mm (2.8") of precipitation.

December is the month with the most snowfall. Snow falls for 6.2 days and accumulates 55mm (2.17") of snow.

In Jarny, France, in December, during 6.2 snowfall days, 55mm (2.17") of snow is typically accumulated.

The month with the shortest days in Jarny is December, with an average of 8h and 18min of daylight.

The average day length in December in Jarny, France, is 8h and 17min.

In December, on the first day of the month, sunrise is at 08:10 and sunset at 16:41. On the last day of the month, in Jarny, sunrise is at 08:31 and sunset at 16:48 CET.

The month with the least sunshine in Jarny is December, with an average of 3.2h of sunshine.

In December, the average sunshine duration in Jarny is 3.2h.

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Jarny, France.

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

8.2°C

4.8°C

3.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.9km/h

16km/h

15.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

9.5

8.4

Average UV index

Average cloud cover

Average visibility

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 18min

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 12min

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).