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
The arrival of December correlates with a minor temperature reduction, down from November's frosty 7.9°C (46.2°F) to a cold 4.2°C (39.6°F). The month of December records an average low-temperature of -4.2°C (24.4°F).Humidity
The average relative humidity in December is 78%.Rainfall
In Lettret, in December, during 10.6 rainfall days, 68mm (2.68") of precipitation is typically accumulated. In Lettret, France, during the entire year, the rain falls for 143.8 days and collects up to 547mm (21.54") of precipitation.Snowfall
January through May, October through December are months with snowfall in Lettret. The month with the most snowfall is December, when snow falls for 4.6 days and typically aggregates up to 119mm (4.69") of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:52 and sunset at 16:57. On the last day of December, sunrise is at 08:11 and sunset at 17:05 CET.
Sunshine
In December, the average sunshine is 6.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lettret. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold is December in Lettret?
What is the average humidity in December in Lettret?
How many days does it rain in December in Lettret?
When does it snow the most in Lettret?
How much does it snow in Lettret in December?
What is the month with the shortest days in Lettret?
What is the average length of the day in December in Lettret?
What time are sunrise and sunset in December in Lettret?
How many hours of sunshine does Lettret have in December?
When is the lowest UV index in Lettret?
What is the UV index reading in December in Lettret?
Average temperature in December
Lettret, France
- Average high temperature in December: 4.2°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (2.7°C).
- Average low temperature in December: -4.2°C
The month with the highest average low temperature is August (9.9°C).
The coldest month (with the lowest average low temperature) is February (-5.9°C).
Average pressure in December
Lettret, France
- Average pressure in December: 1020mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is April (1014.5mbar).
Average wind speed in December
Lettret, France
- Average wind speed in December: 8.8km/h
The windiest month (with the highest average wind speed) is February (9.4km/h).
The calmest month (with the lowest average wind speed) is September (7.4km/h).
Average humidity in December
Lettret, France
- Average humidity in December: 78%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (64%).
Average rainfall in December
Lettret, France
- Average rainfall in December: 68mm
The wettest month (with the highest rainfall) is November (74mm).
The driest months (with the least rainfall) are July and September (28mm).
Average rainfall days in December
Lettret, France
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in December
Lettret, France
- Average snowfall in December: 119mm
The month with the highest snowfall is December (119mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Lettret, France
- Average snowfall days in December: 4.6 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lettret, France
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 6h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in December
Lettret, France
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Lettret, 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
Lettret, France
- Average cloud cover in December: 29
The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in December
Lettret, France
- Average visibility in December: 9km
The months with the highest visibility are July and August (10km).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (9km).
Lettret, France
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