December weather forecast
Châteaugay, France

December

Weather in December

The first month of the winter, December, is still a chilly month in Châteaugay, France, with an average temperature varying between 0.8°C (33.4°F) and 6.7°C (44.1°F).

Temperature

December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's cool 10°C (50°F) to a chilly 6.7°C (44.1°F). An average nighttime temperature of 0.8°C (33.4°F) is observed in Châteaugay during December.

Humidity

In December, the average relative humidity is 84%.

Rainfall

In Châteaugay, France, during December, the rain falls for 13.3 days and regularly aggregates up to 30mm (1.18") of precipitation. In Châteaugay, during the entire year, the rain falls for 178.9 days and collects up to 492mm (19.37") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Châteaugay. In Châteaugay, in December, snow falls for 3.6 days, with typically accumulated 20mm (0.79") of snow. Throughout the year, in Châteaugay, France, there are 21.5 snowfall days, and 145mm (5.71") of snow is accumulated.

Daylight

With an average of 8h and 42min of daylight, December has the shortest days of the year in Châteaugay, France.
On the first day of December, sunrise is at 08:09 and sunset at 17:04. On the last day of the month, sunrise is at 08:28 and sunset at 17:12 CET.

Sunshine

In December, the average sunshine is 5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 2 suggests this advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold is December in Châteaugay?
During December, Châteaugay experiences an average high-temperature of 6.7°C (44.1°F) and a low-temperature of 0.8°C (33.4°F).
What is the average humidity in December in Châteaugay?
In Châteaugay, France, the average relative humidity in December is 84%.
How much does it rain in Châteaugay in December?
In December, in Châteaugay, the rain falls for 13.3 days. Throughout December, 30mm (1.18") of precipitation is accumulated.
How many days does it snow in December in Châteaugay?
In December, it is snowing for 3.6 days. Throughout December, 20mm (0.79") of snow is accumulated.
What is the month with the shortest days in Châteaugay?
With an average of 8h and 42min of daylight, December has the shortest days of the year in Châteaugay, France.
What is the average length of the day in December in Châteaugay?
In December, the average day length in Châteaugay, France, is 8h and 44min.
When are sunrise and sunset in December in Châteaugay?
On the first day of December in Châteaugay, sunrise is at 08:09 and sunset at 17:04. On the last day of the month, sunrise is at 08:28 and sunset at 17:12 CET.
How many hours of sunshine does Châteaugay have in December?
In Châteaugay, France, the average sunshine duration in December is 5h.
When is the lowest UV index in Châteaugay?
The months with the lowest UV index in Châteaugay, France, are January, February, November and December, with an average maximum UV index of 2.
What is the UV index intensity in December in Châteaugay?
In Châteaugay, France, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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 - Châteaugay, France
Average temperature in December
Châteaugay, France
  • Average high temperature in December: 6.7°C

The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (5.1°C).

  • Average low temperature in December: 0.8°C

The month with the highest average low temperature is August (12.2°C).
The coldest month (with the lowest average low temperature) is February (-1.2°C).

Average pressure in December - Châteaugay, France
Average pressure in December
Châteaugay, France
  • Average pressure in December: 1021.3mbar

The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).

Average wind speed in December - Châteaugay, France
Average wind speed in December
Châteaugay, France
  • Average wind speed in December: 11.2km/h

The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is August (7.5km/h).

Average humidity in December - Châteaugay, France
Average humidity in December
Châteaugay, France
  • Average humidity in December: 84%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (73%).

Average rainfall in December - Châteaugay, France
Average rainfall in December
Châteaugay, France
  • Average rainfall in December: 30mm

The wettest month (with the highest rainfall) is June (67mm).
The driest month (with the least rainfall) is September (25mm).

Average rainfall days in December - Châteaugay, France
Average rainfall days in December
Châteaugay, France
  • Average rainfall days in December: 13.3 days

The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is October (11.2 days).

Average snowfall in December - Châteaugay, France
Average snowfall in December
Châteaugay, France
  • Average snowfall in December: 20mm

The month with the highest snowfall is February (43mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Châteaugay, France
Average snowfall days in December
Châteaugay, France
  • Average snowfall days in December: 3.6 days

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Châteaugay, France
Average daylight in December /
Average sunshine in December
Châteaugay, 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: 5h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in December - Châteaugay, France
Average sunshine days in December
Châteaugay, France
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is May (8 days).

Average UV index in December - Châteaugay, France
Average UV index in December
Châteaugay, France
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December - Châteaugay, France
Average cloud cover in December
Châteaugay, France
  • Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December - Châteaugay, France
Average visibility in December
Châteaugay, 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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