December weather forecastBullet, Switzerland
December
Weather in December
The first month of the winter, December, is still a cold month in Bullet, Switzerland, with an average temperature varying between 4°C (39.2°F) and -1.7°C (28.9°F).Temperature
As December begins, there is a minor decrease in the average high-temperature, softly falling from a frosty 8.2°C (46.8°F) in November to an icy 4°C (39.2°F). During December, Bullet observes a consistent average nighttime temperature of -1.7°C (28.9°F).Humidity
In December, the average relative humidity in Bullet is 84%.Rainfall
In December, the rain falls for 6.9 days. Throughout December, 23mm (0.91") of precipitation is accumulated. In Bullet, during the entire year, the rain falls for 104.2 days and collects up to 215mm (8.46") of precipitation.Snowfall
January through May, October through December are months with snowfall in Bullet. In December, it is snowing for 3.2 days. Throughout December, 14mm (0.55") of snow is accumulated. In Bullet, during the entire year, snow falls for 18.1 days and aggregates up to 90mm (3.54") of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Bullet.On the first day of the month, sunrise is at 07:58 and sunset at 16:47. On the last day of December, sunrise is at 08:18 and sunset at 16:55 CET.
Sunshine
With an average of 5.1h of sunshine, December has the least sunshine of the year.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 of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bullet, Switzerland
- Average high temperature in December: 4°C
The warmest months (with the highest average high temperature) are July and August (22.1°C).
The month with the lowest average high temperature is January (2.5°C).
- Average low temperature in December: -1.7°C
The month with the highest average low temperature is July (11.3°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in December
Bullet, 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
Bullet, Switzerland
- Average wind speed in December: 10.7km/h
The windiest month (with the highest average wind speed) is February (11km/h).
The calmest month (with the lowest average wind speed) is August (6.6km/h).
Average humidity in December
Bullet, Switzerland
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and July (79%).
Average rainfall in December
Bullet, Switzerland
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is June (26mm).
The driest month (with the least rainfall) is September (8mm).
Average rainfall days in December
Bullet, Switzerland
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
Bullet, Switzerland
- Average snowfall in December: 14mm
The month with the highest snowfall is January (25mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Bullet, Switzerland
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Bullet, Switzerland
- Average daylight in December: 8h and 36min
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 6min
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 6min).
Average sunshine days in December
Bullet, Switzerland
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is October (23.5 days).
The month with the least sunshine days is May (15.8 days).
Average UV index in December
Bullet, 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
Bullet, Switzerland
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Bullet, Switzerland
- Average visibility in December: 9km
The months with the highest visibility are March, April, November and December (9km).
The months with the lowest visibility are January, February, May, June, July, August, September and October (8km).
