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
Weather in December
Temperature
December brings an average high-temperature of a still fresh 10°C (50°F), showing a slight difference from November's 12.7°C (54.9°F). Throughout December, the temperature tends to fall to a consistent average low of 4.9°C (40.8°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 86%.Rainfall
The month with the most rainfall is December, when the rain falls for 14.5 days and typically aggregates up to 66mm (2.6") of precipitation.Snowfall
In Treillières, snow does not fall in March, May through October and December.Daylight
The month with the shortest days in Treillières is December, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 08:33 and sunset at 17:18. On the last day of the month, sunrise is at 08:53 and sunset at 17:25 CET.
Sunshine
The average sunshine in December is 4.7h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Treillières?
What are the most humid months in Treillières?
What is the average humidity in December in Treillières?
What is the wettest month in Treillières?
How much does it rain in Treillières in December?
When it does not snow in Treillières?
Does it snow in Treillières in December?
What is the month with the shortest days in Treillières?
How many hours of daylight does Treillières have in December?
What time are sunrise and sunset in December in Treillières?
How many hours of sunshine does Treillières have in December?
What is the month with the lowest UV index in Treillières?
How high is the UV index in December in Treillières?
Average temperature in December
Treillières, France
- Average high temperature in December: 10°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in December: 4.9°C
The months with the highest average low temperature are July and August (14°C).
The coldest month (with the lowest average low temperature) is February (2.9°C).
Average pressure in December
Treillières, France
- Average pressure in December: 1019.2mbar
The month with the highest atmospheric pressure is December (1019.2mbar).
The month with the lowest atmospheric pressure is November (1013.5mbar).
Average wind speed in December
Treillières, France
- Average wind speed in December: 17.1km/h
The windiest month (with the highest average wind speed) is February (18km/h).
The calmest month (with the lowest average wind speed) is August (11.8km/h).
Average humidity in December
Treillières, France
- Average humidity in December: 86%
The months with the highest relative humidity are January and December (86%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in December
Treillières, France
- Average rainfall in December: 66mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in December
Treillières, France
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is January (16.3 days).
The month with the least rainy days is September (8.2 days).
Average snowfall in December
Treillières, France
- Average snowfall in December: 0mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are March, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Treillières, France
- Average snowfall days in December: 0.2 days
The months with the highest number of snowfall days are January and February (0.5 days).
The months with the least snowfall days are March, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Treillières, France
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Treillières, France
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is September (20.2 days).
The month with the least sunshine days is November (11.6 days).
Average UV index in December
Treillières, 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
Treillières, France
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in December
Treillières, 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).
Treillières, France
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