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
A mild shift in the average high-temperature occurs in December, reducing from a fresh 12.4°C (54.3°F) in November to a frosty 9.4°C (48.9°F). Throughout December in Greffeil, a steady low-temperature average of 3.5°C (38.3°F) is noted.Humidity
The months with the highest humidity are January, November and December, with an average relative humidity of 81%.Rainfall
In Greffeil, in December, it is raining for 10.9 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, there are 137.8 rainfall days, and 335mm (13.19") of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Greffeil, during December, snow falls for 1.4 days and regularly aggregates up to 7mm (0.28") of snow. Throughout the year, there are 6.8 snowfall days, and 40mm (1.57") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December in Greffeil, France, sunrise is at 08:02 and sunset at 17:16. On the last day of the month, sunrise is at 08:21 and sunset at 17:25 CET.
Sunshine
In Greffeil, the average sunshine in December is 6h.UV index
The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 3 during December leads to these advisories:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Greffeil?
What are the most humid months in Greffeil?
What is the average humidity in December in Greffeil?
How many days does it rain in December in Greffeil?
How much does it snow in Greffeil in December?
What is the month with the shortest days in Greffeil?
How many hours of daylight does Greffeil have in December?
When is the sunrise / sunset in December in Greffeil?
How many hours of sunshine does Greffeil have in December?
How high is the UV index in December in Greffeil?
Average temperature in December
Greffeil, France
- Average high temperature in December: 9.4°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in December: 3.5°C
The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is February (1.7°C).
Average pressure in December
Greffeil, France
- Average pressure in December: 1021.3mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in December
Greffeil, France
- Average wind speed in December: 13.6km/h
The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is September (11.2km/h).
Average humidity in December
Greffeil, France
- Average humidity in December: 81%
The months with the highest relative humidity are January, November and December (81%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Greffeil, France
- Average rainfall in December: 24mm
The wettest month (with the highest rainfall) is October (43mm).
The driest months (with the least rainfall) are August and September (16mm).
Average rainfall days in December
Greffeil, France
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is April (13.5 days).
The month with the least rainy days is August (8.8 days).
Average snowfall in December
Greffeil, France
- Average snowfall in December: 7mm
The month with the highest snowfall is February (13mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Greffeil, France
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (2.4 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
Greffeil, France
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in December
Greffeil, France
- Average sunshine days in December: 14 days
The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is November (12.5 days).
Average UV index in December
Greffeil, France
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in December
Greffeil, France
- Average cloud cover in December: 37
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Greffeil, France
- Average visibility in December: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (9km).
