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 9.9°C (49.8°F) in November to a still frosty 6.7°C (44.1°F). Rouvroy-les-Merles, during December nights, experiences a subtle shift to a low average of 2.5°C (36.5°F) from the day's heat.Humidity
With an average relative humidity of 89%, December is the most humid month.Rainfall
The month with the most rainfall is December, when the rain falls for 15.9 days and typically aggregates up to 55mm (2.17") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Rouvroy-les-Merles, in December, during 2.4 snowfall days, 21mm (0.83") of snow is typically accumulated. Throughout the year, in Rouvroy-les-Merles, there are 8.8 snowfall days, and 72mm (2.83") of snow is accumulated.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:26 and sunset at 16:53. On the last day of December, sunrise is at 08:47 and sunset at 17:00 CET.
Sunshine
In December, the average sunshine in Rouvroy-les-Merles, France, is 3.9h.UV index
The months with the lowest UV index in Rouvroy-les-Merles, France, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Rouvroy-les-Merles?
What is the most humid month in Rouvroy-les-Merles?
What is the average humidity in December in Rouvroy-les-Merles?
What is the rainiest month in Rouvroy-les-Merles?
How much does it rain in Rouvroy-les-Merles in December?
How many days does it snow in December in Rouvroy-les-Merles?
What is the month with the shortest days in Rouvroy-les-Merles?
What is the average length of the day in December in Rouvroy-les-Merles?
When is the sunrise / sunset in December in Rouvroy-les-Merles?
How many hours of sunshine does Rouvroy-les-Merles have in December?
What is the month with the lowest UV index in Rouvroy-les-Merles?
What is the UV index intensity in December in Rouvroy-les-Merles?
Average temperature in December
Rouvroy-les-Merles, France
- Average high temperature in December: 6.7°C
The warmest month (with the highest average high temperature) is August (22.9°C).
The month with the lowest average high temperature is January (5.5°C).
- Average low temperature in December: 2.5°C
The month with the highest average low temperature is August (13.1°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in December
Rouvroy-les-Merles, France
- Average pressure in December: 1017.5mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1012.8mbar).
Average wind speed in December
Rouvroy-les-Merles, France
- Average wind speed in December: 17.1km/h
The windiest month (with the highest average wind speed) is February (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in December
Rouvroy-les-Merles, France
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (76%).
Average rainfall in December
Rouvroy-les-Merles, France
- Average rainfall in December: 55mm
The wettest month (with the highest rainfall) is December (55mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in December
Rouvroy-les-Merles, France
- Average rainfall days in December: 15.9 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (11.3 days).
Average snowfall in December
Rouvroy-les-Merles, France
- Average snowfall in December: 21mm
The month with the highest snowfall is January (23mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Rouvroy-les-Merles, France
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Rouvroy-les-Merles, France
- Average daylight in December: 8h and 1min
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 5min
The month with the most sunshine is June (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Rouvroy-les-Merles, France
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is March (15.7 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Rouvroy-les-Merles, 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
Rouvroy-les-Merles, France
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are August and September (Cloud cover 43).
Average visibility in December
Rouvroy-les-Merles, France
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, June, July, August, September, October and December (9km).
The months with the lowest visibility are January, May and November (8km).
