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
In December, the average high-temperature marginally drops from a cool 11.5°C (52.7°F) in November to a frosty 8.3°C (46.9°F). An average low-temperature of 2°C (35.6°F) is observed during the December nights.Humidity
In December, the average relative humidity is 82%.Rainfall
In December, in Grillon, the rain falls for 10.4 days. Throughout December, 32mm (1.26") of precipitation is accumulated. Throughout the year, in Grillon, there are 111.4 rainfall days, and 380mm (14.96") of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Grillon. December is the first month it typically snows in Grillon. Throughout December, in the average 0.4 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, in Grillon, there are 3.3 snowfall days, and 15mm (0.59") of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of December in Grillon, sunrise is at 07:56 and sunset at 17:02. On the last day of the month, sunrise is at 08:16 and sunset at 17:10 CET.
Sunshine
In Grillon, France, the average sunshine in December is 5.9h.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 reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Grillon in December?
What is the average humidity in December in Grillon?
How many days does it rain in December in Grillon?
When does it start snowing in Grillon?
What is the month with the shortest days in Grillon?
What is the average length of the day in December in Grillon?
What time are sunrise and sunset in December in Grillon?
How long on average sun shines in December in Grillon?
When is the lowest UV index in Grillon?
What is the UV index reading in December in Grillon?
Average temperature in December
Grillon, France
- Average high temperature in December: 8.3°C
The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in December: 2°C
The months with the highest average low temperature are July and August (15.5°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).
Average pressure in December
Grillon, France
- Average pressure in December: 1020.7mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in December
Grillon, France
- Average wind speed in December: 10km/h
The windiest month (with the highest average wind speed) is May (11.9km/h).
The calmest month (with the lowest average wind speed) is November (9.5km/h).
Average humidity in December
Grillon, France
- Average humidity in December: 82%
The month with the highest relative humidity is November (83%).
The months with the lowest relative humidity are July and August (62%).
Average rainfall in December
Grillon, France
- Average rainfall in December: 32mm
The wettest month (with the highest rainfall) is November (83mm).
The driest month (with the least rainfall) is July (16mm).
Average rainfall days in December
Grillon, France
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is November (12.5 days).
The month with the least rainy days is August (6.8 days).
Average snowfall in December
Grillon, France
- Average snowfall in December: 1mm
The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Grillon, France
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and November (0 days).
Average daylight in December /
Average sunshine in December
Grillon, France
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in December
Grillon, France
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is August (22.7 days).
The month with the least sunshine days is November (15.6 days).
Average UV index in December
Grillon, France
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Grillon, France
- Average cloud cover in December: 38
The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Grillon, France
- Average visibility in December: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (9km).
Grillon, France
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