December weather forecast
Crolles, 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.

Frequently asked questions

How cold is it in Crolles in December?
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).
What is the average humidity in December in Crolles?
In December, the average relative humidity is 83%.
What is the wettest month in Crolles?
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.
How much does it rain in Crolles in December?
In Crolles, in December, during 8.2 rainfall days, 50mm (1.97") of precipitation is typically accumulated.
What is the snowiest month in Crolles?
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.
How many days does it snow in December in Crolles?
In Crolles, during December, snow falls for 10.3 days and regularly aggregates up to 197mm (7.76") of snow.
What is the month with the shortest days in Crolles?
The month with the shortest days in Crolles, France, is December, with an average of 8h and 48min of daylight.
What is the average length of the day in December in Crolles?
The average day length in December is 8h and 49min.
What time are sunrise and sunset in December in Crolles?
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.
What is the month with the least sunshine in Crolles?
The months with the least sunshine in Crolles are January and December, with an average of 5.5h of sunshine.
How long on average sun shines in December in Crolles?
In December, the average sunshine duration is 5.5h.
When is the lowest UV index in Crolles?
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.
How high is the UV index in December in Crolles?
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.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
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 5min

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 3min

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).

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