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
With the onset of December, Chalais experiences a modest temperature adjustment, with the average high-temperature gently receding from a wintry 2.4°C (36.3°F) in November to a subzero cold -1.4°C (29.5°F). Chalais observes an average nighttime temperature of -9.4°C (15.1°F) during December.Humidity
In Chalais, the average relative humidity in December is 85%.Rainfall
In Chalais, Switzerland, in December, during 5.9 rainfall days, 110mm (4.33") of precipitation is typically accumulated. Throughout the year, there are 159.9 rainfall days, and 1035mm (40.75") of precipitation is accumulated.Snowfall
January through December are months with snowfall. December is the month with the most snowfall. Snow falls for 18.4 days and accumulates 887mm (34.92") of snow.Daylight
With an average of 8h and 42min 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 16:45. On the last day of December, in Chalais, Switzerland, sunrise is at 08:12 and sunset at 16:53 CET.
Sunshine
In December, the average sunshine in Chalais is 4.8h.UV index
In December, the average daily maximum UV index in Chalais is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Chalais?
What is the average humidity in December in Chalais?
How many days does it rain in December in Chalais?
When does it snow the most in Chalais?
How much does it snow in Chalais in December?
What is the month with the shortest days in Chalais?
What is the average length of the day in December in Chalais?
When is the sunrise / sunset in December in Chalais?
How long on average sun shines in December in Chalais?
What is the UV index intensity in December in Chalais?
Average temperature in December
Chalais, Switzerland
- Average high temperature in December: -1.4°C
The warmest month (with the highest average high temperature) is July (16.5°C).
The month with the lowest average high temperature is January (-2.6°C).
- Average low temperature in December: -9.4°C
The month with the highest average low temperature is August (6.4°C).
The coldest month (with the lowest average low temperature) is February (-11.3°C).
Average pressure in December
Chalais, Switzerland
- Average pressure in December: 1021mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in December
Chalais, Switzerland
- Average wind speed in December: 8.4km/h
The windiest month (with the highest average wind speed) is December (8.4km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in December
Chalais, Switzerland
- Average humidity in December: 85%
The month with the highest relative humidity is March (91%).
The months with the lowest relative humidity are July and August (79%).
Average rainfall in December
Chalais, Switzerland
- Average rainfall in December: 110mm
The wettest month (with the highest rainfall) is May (126mm).
The driest months (with the least rainfall) are September and October (54mm).
Average rainfall days in December
Chalais, Switzerland
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Chalais, Switzerland
- Average snowfall in December: 887mm
The month with the highest snowfall is December (887mm).
The month with the least snowfall is July (5mm).
Average snowfall days in December
Chalais, Switzerland
- Average snowfall days in December: 18.4 days
The month with the highest number of snowfall days is March (21.1 days).
The month with the least snowfall days is August (0.4 days).
Average daylight in December /
Average sunshine in December
Chalais, Switzerland
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Chalais, Switzerland
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is May (4.2 days).
Average UV index in December
Chalais, Switzerland
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, March, April and November (UV index 1).
Average cloud cover in December
Chalais, Switzerland
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 56).
The month with the least cloud cover is October (Cloud cover 38).
Average visibility in December
Chalais, Switzerland
- Average visibility in December: 7km
The months with the highest visibility are June, July, August and October (8km).
The months with the lowest visibility are January, February and March (6km).
