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
With the commencement of December, Grévillers records a moderate temperature decline, with the average high easing from November's chilly 9.9°C (49.8°F) to a still frosty 6.7°C (44.1°F). Nights during December maintain a steady temperature, averaging at a wintry 2.6°C (36.7°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 88%.Rainfall
December is the month with the most rainfall. Rain falls for 15.8 days and accumulates 49mm (1.93") of precipitation.Snowfall
January through March, November and December are months with snowfall in Grévillers. In December, in Grévillers, France, it is snowing for 1.7 days. Throughout December, 16mm (0.63") of snow is accumulated. Throughout the year, there are 8.4 snowfall days, and 64mm (2.52") of snow is accumulated.Daylight
December has the shortest days of the year in Grévillers, with an average of 8h and 12min of daylight.On the first day of the month, sunrise is at 08:26 and sunset at 16:49. On the last day of December, sunrise is at 08:47 and sunset at 16:56 CET.
Sunshine
In Grévillers, France, the average sunshine in December is 4.1h.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 of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
How cold does it get in Grévillers in December?
What are the most humid months in Grévillers?
What is the average humidity in December in Grévillers?
What is the wettest month in Grévillers?
How many days does it rain in December in Grévillers?
How many days does it snow in December in Grévillers?
What is the month with the shortest days in Grévillers?
How many hours of daylight does Grévillers have in December?
When is the sunrise / sunset in December in Grévillers?
How long on average sun shines in December in Grévillers?
What are the months with the lowest UV index in Grévillers?
How high is the UV index in December in Grévillers?
Average temperature in December
Grévillers, France
- Average high temperature in December: 6.7°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (5.5°C).
- Average low temperature in December: 2.6°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in December
Grévillers, France
- Average pressure in December: 1016.6mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in December
Grévillers, France
- Average wind speed in December: 18.3km/h
The windiest month (with the highest average wind speed) is February (18.4km/h).
The calmest month (with the lowest average wind speed) is August (12.3km/h).
Average humidity in December
Grévillers, France
- Average humidity in December: 88%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Grévillers, France
- Average rainfall in December: 49mm
The wettest month (with the highest rainfall) is December (49mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in December
Grévillers, France
- Average rainfall days in December: 15.8 days
The month with the highest number of rainy days is December (15.8 days).
The month with the least rainy days is February (11.3 days).
Average snowfall in December
Grévillers, France
- Average snowfall in December: 16mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Grévillers, France
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Grévillers, France
- Average daylight in December: 8h and 1min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Grévillers, France
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is April (16.6 days).
The month with the least sunshine days is December (11.5 days).
Average UV index in December
Grévillers, 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
Grévillers, France
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in December
Grévillers, France
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Grévillers, France
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