December weather forecastCrolles, France

December

Weather in December

December, the first month of the winter in Crolles, is also an icy month, with an average temperature ranging between min -1.8°C (28.8°F) and max 4.5°C (40.1°F).

Temperature

December sees a slight reduction in average high-temperature, with a shift from a frosty 8.1°C (46.6°F) in November to an icy 4.5°C (40.1°F). Throughout December, the nighttime temperature averages to a freezing cold -1.8°C (28.8°F).

Humidity

In Crolles, the average relative humidity in December is 83%.

Rainfall

December is the month with the most rainfall in Crolles. Rain falls for 8.2 days and accumulates 50mm (1.97") of precipitation.

Snowfall

Months with snowfall in Crolles are January through May, October through December. December is the month with the most snowfall. Snow falls for 10.3 days and accumulates 197mm (7.76") of snow.

Daylight

The month with the shortest days in Crolles, France, is December, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 07:55 and sunset at 16:55. On the last day of December, sunrise is at 08:15 and sunset at 17:03 CET.

Sunshine

The months with the least sunshine are January and December, with an average of 5.5h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.

Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Crolles, in December, the average high-temperature is 4.5°C (40.1°F), and the average low-temperature is -1.8°C (28.8°F).

In December, the average relative humidity is 83%.

The month with the most rainfall in Crolles is December, when the rain falls for 8.2 days and typically aggregates up to 50mm (1.97") of precipitation.

In Crolles, in December, during 8.2 rainfall days, 50mm (1.97") of precipitation is typically accumulated.

The month with the most snowfall in Crolles is December, when snow falls for 10.3 days and typically aggregates up to 197mm (7.76") of snow.

In Crolles, during December, snow falls for 10.3 days and regularly aggregates up to 197mm (7.76") of snow.

The month with the shortest days in Crolles, France, is December, with an average of 8h and 48min of daylight.

The average day length in December is 8h and 49min.

On the first day of December in Crolles, sunrise is at 07:55 and sunset at 16:55. On the last day of the month, sunrise is at 08:15 and sunset at 17:03 CET.

The months with the least sunshine in Crolles are January and December, with an average of 5.5h of sunshine.

In December, the average sunshine duration is 5.5h.

The months with the lowest UV index in Crolles, France, are January through March, November and December, with an average maximum UV index of 2.

In December, the average daily maximum UV index in Crolles, France, is 2. A UV Index of 2, and less, symbolizes a low health risk 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

8.1°C

4.5°C

2.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.6km/h

8km/h

7.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

16.5

15.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Crolles, France

Average high temperature in December: 4.5°C

The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (2.8°C).

Average low temperature in December: -1.8°C

The months with the highest average low temperature are July and August (11.2°C).
The coldest month (with the lowest average low temperature) is February (-3.7°C).

Average pressure in December
Crolles, France

Average pressure in December: 1020.8mbar

The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015mbar).

Average wind speed in December
Crolles, France

Average wind speed in December: 7.6km/h

The windiest month (with the highest average wind speed) is February (8km/h).
The calmest month (with the lowest average wind speed) is September (6.2km/h).

Average humidity in December
Crolles, France

Average humidity in December: 83%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (74%).

Average rainfall in December
Crolles, France

Average rainfall in December: 50mm

The wettest month (with the highest rainfall) is December (50mm).
The driest month (with the least rainfall) is September (23mm).

Average rainfall days in December
Crolles, France

Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in December
Crolles, France

Average snowfall in December: 197mm

The month with the highest snowfall is December (197mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Crolles, France

Average snowfall days in December: 10.3 days

The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Crolles, France

Average daylight in December: 8h and 48min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

Average sunshine in December: 5h and 30min

The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

Average sunshine days in December
Crolles, France

Average sunshine days in December: 16.5 days

The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is May (11.9 days).

Average UV index in December
Crolles, 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, March, November and December (UV index 2).

Average cloud cover in December
Crolles, France

Average cloud cover in December: 40

The months with the most cloud cover are January and February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December
Crolles, France

Average visibility in December: 8km

The months with the highest visibility are March and August (9km).
The months with the lowest visibility are January, February, April, May, June, July, September, October, November and December (8km).