December weather forecastWilliers, France
December
Weather in December
The first month of the winter, December, is also a wintry month in Williers, France, with an average temperature fluctuating between 0.5°C (32.9°F) and 4.5°C (40.1°F).Temperature
A modest decline in the average high-temperature is seen during December, decreasing from a frosty 8°C (46.4°F) in November to a cold 4.5°C (40.1°F). During December, nights cool slightly to an average low of 0.5°C (32.9°F).Humidity
The most humid month is December, with an average relative humidity of 92%.Rainfall
The month with the most rainfall is December, when the rain falls for 14.8 days and typically aggregates up to 74mm (2.91") of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, in Williers, France, it is snowing for 5.9 days. Throughout December, 56mm (2.2") of snow is accumulated. Throughout the year, in Williers, France, there are 23.6 snowfall days, and 203mm (7.99") of snow is accumulated.Daylight
The month with the shortest days in Williers is December, with an average of 8h and 12min of daylight.On the first day of December, sunrise is at 08:14 and sunset at 16:41. On the last day of the month, sunrise is at 08:35 and sunset at 16:48 CET.
Sunshine
December has the least sunshine of the year in Williers, with an average of 3h of sunshine.UV index
The months with the lowest UV index in Williers are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Note well! The intensity of the Sun's UV rays 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
Williers, France
- Average high temperature in December: 4.5°C
The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (3.6°C).
- Average low temperature in December: 0.5°C
The months with the highest average low temperature are July and August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-0.8°C).
Average pressure in December
Williers, France
- Average pressure in December: 1018.2mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed in December
Williers, France
- Average wind speed in December: 15.7km/h
The windiest month (with the highest average wind speed) is February (16.1km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in December
Williers, France
- Average humidity in December: 92%
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and August (78%).
Average rainfall in December
Williers, France
- Average rainfall in December: 74mm
The wettest month (with the highest rainfall) is December (74mm).
The driest month (with the least rainfall) is April (33mm).
Average rainfall days in December
Williers, France
- Average rainfall days in December: 14.8 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (11.9 days).
Average snowfall in December
Williers, France
- Average snowfall in December: 56mm
The month with the highest snowfall is January (62mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Williers, France
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Williers, France
- Average daylight in December: 8h and 12min
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 12min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in December
Williers, France
- Average sunshine days in December: 9.6 days
The month with the most sunshine days is September (14.9 days).
The months with the least sunshine days are June, November and December (9.6 days).
Average UV index in December
Williers, 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
Williers, France
- Average cloud cover in December: 71
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in December
Williers, France
- Average visibility in December: 8km
The months with the highest visibility are March, April and August (9km).
The month with the lowest visibility is November (7km).
