December weather forecastGrevilly, France
December
Weather in December
December, the first month of the winter in Grevilly, is still a chilly month, with temperature in the range of an average low of 1.5°C (34.7°F) and an average high of 6.4°C (43.5°F).Temperature
With the arrival of December, Grevilly notices a mild change in the average high-temperature, sliding from November's cool 10.2°C (50.4°F) to a frosty 6.4°C (43.5°F). Grevilly's average temperature throughout the nights in December exhibits a minor decrease from daytime highs, stabilizing at a cold 1.5°C (34.7°F).Humidity
With an average relative humidity of 87%, December is the most humid month in Grevilly.Rainfall
In December, the rain falls for 16.5 days. Throughout December, 80mm (3.15") of precipitation is accumulated. Throughout the year, in Grevilly, there are 192.1 rainfall days, and 786mm (30.94") of precipitation is accumulated.Snowfall
January through March, October through December are months with snowfall in Grevilly. In Grevilly, in December, during 4 snowfall days, 31mm (1.22") of snow is typically accumulated. Throughout the year, there are 18.6 snowfall days, and 160mm (6.3") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 08:04 and sunset at 16:55. On the last day of the month, sunrise is at 08:24 and sunset at 17:03 CET.
Sunshine
The average sunshine in December is 4.6h.UV index
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grevilly, France
- Average high temperature in December: 6.4°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (5.5°C).
- Average low temperature in December: 1.5°C
The month with the highest average low temperature is July (14.2°C).
The coldest month (with the lowest average low temperature) is February (0.1°C).
Average pressure in December
Grevilly, France
- Average pressure in December: 1021.2mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Grevilly, France
- Average wind speed in December: 10.6km/h
The windiest month (with the highest average wind speed) is February (11.6km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in December
Grevilly, France
- Average humidity in December: 87%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Grevilly, France
- Average rainfall in December: 80mm
The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is September (40mm).
Average rainfall days in December
Grevilly, France
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is September (12.2 days).
Average snowfall in December
Grevilly, France
- Average snowfall in December: 31mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Grevilly, France
- Average snowfall days in December: 4 days
The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grevilly, France
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Grevilly, France
- Average sunshine days in December: 10.9 days
The month with the most sunshine days is October (14.7 days).
The month with the least sunshine days is May (7.3 days).
Average UV index in December
Grevilly, 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, November and December (UV index 2).
Average cloud cover in December
Grevilly, France
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Grevilly, France
- Average visibility in December: 8km
The months with the highest visibility are March, April, June, July and August (9km).
The months with the lowest visibility are January, February, May, September, October, November and December (8km).
