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
The onset of December is marked by a minor decrease in temperature, transitioning from a frosty 7.7°C (45.9°F) in November to a wintry 3.7°C (38.7°F). Throughout December nights, Treyvaux experiences a consistent temperature average of -2.7°C (27.1°F).Humidity
In Treyvaux, the average relative humidity in December is 84%.Rainfall
In Treyvaux, Switzerland, in December, during 13.9 rainfall days, 98mm (3.86") of precipitation is typically accumulated. In Treyvaux, Switzerland, during the entire year, the rain falls for 205.3 days and collects up to 992mm (39.06") of precipitation.Snowfall
Months with snowfall in Treyvaux, Switzerland, are January through May, October through December. December is the month with the most snowfall in Treyvaux. Snow falls for 8.6 days and accumulates 192mm (7.56") of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Treyvaux.On the first day of December in Treyvaux, Switzerland, sunrise is at 07:55 and sunset at 16:45. On the last day of the month, sunrise is at 08:16 and sunset at 16:53 CET.
Sunshine
The month with the least sunshine in Treyvaux is December, with an average of 5.2h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Treyvaux?
What is the average humidity in December in Treyvaux?
How much does it rain in Treyvaux in December?
What is the snowiest month in Treyvaux?
How many days does it snow in December in Treyvaux?
What is the month with the shortest days in Treyvaux?
What is the average length of the day in December in Treyvaux?
When is the sunrise / sunset in December in Treyvaux?
What is the month with the least sunshine in Treyvaux?
How many hours of sunshine does Treyvaux have in December?
When is the lowest UV index in Treyvaux?
What is the UV index reading in December in Treyvaux?
Average temperature in December
Treyvaux, Switzerland
- Average high temperature in December: 3.7°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in December: -2.7°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-4.6°C).
Average pressure in December
Treyvaux, Switzerland
- Average pressure in December: 1021.1mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in December
Treyvaux, Switzerland
- Average wind speed in December: 9.8km/h
The windiest month (with the highest average wind speed) is February (9.9km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in December
Treyvaux, Switzerland
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (79%).
Average rainfall in December
Treyvaux, Switzerland
- Average rainfall in December: 98mm
The wettest month (with the highest rainfall) is June (117mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days in December
Treyvaux, Switzerland
- Average rainfall days in December: 13.9 days
The month with the highest number of rainy days is May (23.1 days).
The month with the least rainy days is February (12.2 days).
Average snowfall in December
Treyvaux, Switzerland
- Average snowfall in December: 192mm
The month with the highest snowfall is December (192mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Treyvaux, Switzerland
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is February (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Treyvaux, Switzerland
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 5h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Treyvaux, Switzerland
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is June (4.3 days).
Average UV index in December
Treyvaux, Switzerland
- 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, March, November and December (UV index 2).
Average cloud cover in December
Treyvaux, Switzerland
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Treyvaux, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are January, February, May, June, July, September, October, November and December (8km).
