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
December
Weather in December
Temperature
During December, Grébault-Mesnil records an average high-temperature of a chilly 7.4°C (45.3°F), marking a slight divergence from November's 10°C (50°F). Grébault-Mesnil's nighttime temperatures in December display a slight drop from daytime highs, averaging to a cold 3.6°C (38.5°F).Humidity
The months with the highest humidity are January, November and December, with an average relative humidity of 87%.Rainfall
December is the month with the most rainfall in Grébault-Mesnil. Rain falls for 16.5 days and accumulates 71mm (2.8") of precipitation.Snowfall
January through March, November and December are months with snowfall. In Grébault-Mesnil, during December, snow falls for 2.2 days and regularly aggregates up to 22mm (0.87") of snow. Throughout the year, there are 9.6 snowfall days, and 71mm (2.8") of snow is accumulated.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year.On the first day of December in Grébault-Mesnil, sunrise is at 08:30 and sunset at 16:54. On the last day of the month, sunrise is at 08:51 and sunset at 17:01 CET.
Sunshine
In Grébault-Mesnil, the average sunshine in December is 4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Grébault-Mesnil. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Grébault-Mesnil in December?
What are the most humid months in Grébault-Mesnil?
What is the average humidity in December in Grébault-Mesnil?
What is the rainiest month in Grébault-Mesnil?
How much does it rain in Grébault-Mesnil in December?
How much does it snow in Grébault-Mesnil in December?
What is the month with the shortest days in Grébault-Mesnil?
How many hours of daylight does Grébault-Mesnil have in December?
What time are sunrise and sunset in December in Grébault-Mesnil?
How many hours of sunshine does Grébault-Mesnil have in December?
What are the months with the lowest UV index in Grébault-Mesnil?
What is the UV index reading in December in Grébault-Mesnil?
Average temperature in December
Grébault-Mesnil, France
- Average high temperature in December: 7.4°C
The warmest month (with the highest average high temperature) is August (21.7°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 3.6°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in December
Grébault-Mesnil, 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 (1012.2mbar).
Average wind speed in December
Grébault-Mesnil, France
- Average wind speed in December: 20.3km/h
The windiest month (with the highest average wind speed) is December (20.3km/h).
The calmest month (with the lowest average wind speed) is August (13.4km/h).
Average humidity in December
Grébault-Mesnil, France
- Average humidity in December: 87%
The months with the highest relative humidity are January, November and December (87%).
The month with the lowest relative humidity is August (78%).
Average rainfall in December
Grébault-Mesnil, France
- Average rainfall in December: 71mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in December
Grébault-Mesnil, France
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is April (13.5 days).
Average snowfall in December
Grébault-Mesnil, France
- Average snowfall in December: 22mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Grébault-Mesnil, France
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (3.2 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
Grébault-Mesnil, 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 0min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Grébault-Mesnil, France
- Average sunshine days in December: 11.1 days
The months with the most sunshine days are March and April (13.7 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in December
Grébault-Mesnil, 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
Grébault-Mesnil, France
- Average cloud cover in December: 59
The months with the most cloud cover are January, November and December (Cloud cover 59).
The months with the least cloud cover are April and August (Cloud cover 40).
Average visibility in December
Grébault-Mesnil, 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).
