December weather forecastDechy, France
December
Weather in December
December, the first month of the winter in Dechy, is still a chilly month, with temperature in the range of an average high of 6.7°C (44.1°F) and an average low of 2.7°C (36.9°F).Temperature
December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a fresh 10.1°C (50.2°F) in November to a frosty 6.7°C (44.1°F). Nighttime temperatures record an average of 2.7°C (36.9°F) throughout December.Humidity
With an average relative humidity of 88%, December is the most humid month in Dechy.Rainfall
December is the month with the most rainfall in Dechy. Rain falls for 10.6 days and accumulates 18mm (0.71") of precipitation.Snowfall
Months with snowfall are January, February and December. December is the first month it typically snows. Throughout December, in the average 1.5 snowfall days, it receives 4mm (0.16") of snow. Throughout the year, in Dechy, there are 6.4 snowfall days, and 19mm (0.75") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 6min of daylight.On the first day of December in Dechy, sunrise is at 08:26 and sunset at 16:47. On the last day of the month, sunrise is at 08:47 and sunset at 16:53 CET.
Sunshine
In Dechy, France, the average sunshine in December is 4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Dechy, France
- Average high temperature in December: 6.7°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in December: 2.7°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average pressure in December
Dechy, France
- Average pressure in December: 1016.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in December
Dechy, France
- Average wind speed in December: 18.1km/h
The windiest months (with the highest average wind speed) are February and December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (12.1km/h).
Average humidity in December
Dechy, France
- Average humidity in December: 88%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (73%).
Average rainfall in December
Dechy, France
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is December (18mm).
The driest month (with the least rainfall) is September (5mm).
Average rainfall days in December
Dechy, France
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is June (11.1 days).
The month with the least rainy days is September (7 days).
Average snowfall in December
Dechy, France
- Average snowfall in December: 4mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Dechy, France
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.5 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
Dechy, France
- Average daylight in December: 8h and 6min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Dechy, France
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is June (14.1 days).
Average UV index in December
Dechy, 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
Dechy, France
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in December
Dechy, France
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





