December weather forecastGuerny, France
December
Weather in December
December, the first month of the winter in Guerny, is also a frosty month, with an average temperature fluctuating between 7.4°C (45.3°F) and 2.6°C (36.7°F).Temperature
A mild drop in Guerny's average high-temperature is observed in December, transitioning from a fresh 10.5°C (50.9°F) in November to a frosty 7.4°C (45.3°F). Nights in Guerny during December maintain a steady temperature, averaging at an icy 2.6°C (36.7°F).Humidity
January and December, with an average relative humidity of 87%, are the most humid months in Guerny.Rainfall
In December, the rain falls for 16.9 days. Throughout December, 60mm (2.36") of precipitation is accumulated. In Guerny, during the entire year, the rain falls for 195 days and collects up to 553mm (21.77") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 1.8 days. Throughout December, 21mm (0.83") of snow is accumulated. In Guerny, during the entire year, snow falls for 9.3 days and aggregates up to 73mm (2.87") of snow.Daylight
The month with the shortest days in Guerny is December, with an average of 8h and 18min of daylight.On the first day of the month, sunrise is at 08:27 and sunset at 16:57. On the last day of December, in Guerny, France, sunrise is at 08:48 and sunset at 17:04 CET.
Sunshine
In December, the average sunshine is 4.2h.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 minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 in December translates into these instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Enhance your sun protection with tightly woven, yet airy clothing. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Guerny, France
- Average high temperature in December: 7.4°C
The warmest month (with the highest average high temperature) is August (24°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 2.6°C
The month with the highest average low temperature is August (13.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in December
Guerny, France
- Average pressure in December: 1018mbar
The month with the highest atmospheric pressure is September (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in December
Guerny, France
- Average wind speed in December: 16.2km/h
The windiest month (with the highest average wind speed) is February (16.5km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in December
Guerny, France
- Average humidity in December: 87%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (72%).
Average rainfall in December
Guerny, France
- Average rainfall in December: 60mm
The wettest month (with the highest rainfall) is June (69mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in December
Guerny, France
- Average rainfall days in December: 16.9 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is September (12.8 days).
Average snowfall in December
Guerny, France
- Average snowfall in December: 21mm
The month with the highest snowfall is February (24mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Guerny, France
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Guerny, France
- Average daylight in December: 8h and 18min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is June (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Guerny, France
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in December
Guerny, 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
Guerny, France
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 40).
Average visibility in December
Guerny, France
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
