December weather forecastChatelay, France
December
Weather in December
December, the first month of the winter in Chatelay, is still a cold month, with temperature in the range of an average low of 0.5°C (32.9°F) and an average high of 5.6°C (42.1°F).Temperature
December brings a minor shift in the average high-temperature, adjusting from a frosty 9.2°C (48.6°F) in November to an icy 5.6°C (42.1°F). In Chatelay, an average temperature of 0.5°C (32.9°F) is noted during December nights.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 87%.Rainfall
In Chatelay, in December, during 13.5 rainfall days, 79mm (3.11") of precipitation is typically accumulated. Throughout the year, in Chatelay, there are 173.9 rainfall days, and 719mm (28.31") of precipitation is accumulated.Snowfall
Months with snowfall are January through March, October through December. In Chatelay, in December, during 3.7 snowfall days, 47mm (1.85") of snow is typically accumulated. In Chatelay, during the entire year, snow falls for 19 days and aggregates up to 219mm (8.62") of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:02 and sunset at 16:50. On the last day of December, sunrise is at 08:22 and sunset at 16:57 CET.
Sunshine
The months with the least sunshine are January and December, with an average of 4.4h of sunshine.UV index
The months with the lowest UV index in Chatelay are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Chatelay, France
- Average high temperature in December: 5.6°C
The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (4.2°C).
- Average low temperature in December: 0.5°C
The months with the highest average low temperature are July and August (13°C).
The coldest month (with the lowest average low temperature) is January (-0.8°C).
Average pressure in December
Chatelay, France
- Average pressure in December: 1020.8mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is November (1015.6mbar).
Average wind speed in December
Chatelay, France
- Average wind speed in December: 12.8km/h
The windiest month (with the highest average wind speed) is February (13.1km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in December
Chatelay, 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 (78%).
Average rainfall in December
Chatelay, France
- Average rainfall in December: 79mm
The wettest month (with the highest rainfall) is June (97mm).
The driest month (with the least rainfall) is September (32mm).
Average rainfall days in December
Chatelay, France
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (11.1 days).
Average snowfall in December
Chatelay, France
- Average snowfall in December: 47mm
The month with the highest snowfall is January (71mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Chatelay, France
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (5.9 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
Chatelay, France
- Average daylight in December: 8h and 36min
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 36min).
- Average sunshine in December: 4h and 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).
Average sunshine days in December
Chatelay, France
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in December
Chatelay, 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, November and December (UV index 2).
Average cloud cover in December
Chatelay, France
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Chatelay, France
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, July and August (9km).
The months with the lowest visibility are January, May, June, September, October, November and December (8km).
