December weather forecastGrilly, France
December
Weather in December
December, the first month of the winter in Grilly, is also a wintry month, with an average temperature fluctuating between 4.4°C (39.9°F) and -1.5°C (29.3°F).Temperature
December indicates a minor shift in the average high-temperature, from November's chilly 8.3°C (46.9°F) to a cold 4.4°C (39.9°F). An average low-temperature of -1.5°C (29.3°F) marks the month of December in Grilly, France.Humidity
The average relative humidity in December is 85%.Rainfall
In Grilly, in December, it is raining for 14.1 days, with typically 82mm (3.23") of accumulated precipitation. In Grilly, during the entire year, the rain falls for 190.1 days and collects up to 748mm (29.45") of precipitation.Snowfall
Months with snowfall are January through April, October through December. December is the month with the most snowfall in Grilly. Snow falls for 4.7 days and accumulates 81mm (3.19") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 07:58 and sunset at 16:50. On the last day of December, sunrise is at 08:18 and sunset at 16:58 CET.
Sunshine
December has the least sunshine of the year in Grilly, with an average of 4.9h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Grilly, France. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grilly, France
- Average high temperature in December: 4.4°C
The warmest month (with the highest average high temperature) is July (22.7°C).
The month with the lowest average high temperature is January (2.7°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is July (11.7°C).
The coldest month (with the lowest average low temperature) is February (-3.4°C).
Average pressure in December
Grilly, 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 (1015.4mbar).
Average wind speed in December
Grilly, France
- Average wind speed in December: 9.2km/h
The windiest month (with the highest average wind speed) is February (9.5km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in December
Grilly, France
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (79%).
Average rainfall in December
Grilly, France
- Average rainfall in December: 82mm
The wettest month (with the highest rainfall) is June (86mm).
The driest month (with the least rainfall) is October (41mm).
Average rainfall days in December
Grilly, France
- Average rainfall days in December: 14.1 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (11.7 days).
Average snowfall in December
Grilly, France
- Average snowfall in December: 81mm
The month with the highest snowfall is December (81mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Grilly, France
- Average snowfall days in December: 4.7 days
The months with the highest number of snowfall days are January and February (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grilly, France
- Average daylight in December: 8h and 42min
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: 4h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Grilly, France
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (7.7 days).
Average UV index in December
Grilly, France
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Grilly, France
- Average cloud cover in December: 49
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Grilly, France
- Average visibility in December: 8km
The months with the highest visibility are March and April (9km).
The months with the lowest visibility are January, February, May, June, July, August, September, October, November and December (8km).
