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 signifies a gentle decline in Stilli's average high-temperature, easing from a frosty 8.5°C (47.3°F) in November to a cold 4.2°C (39.6°F). Throughout December, the temperature falls to an average low of -1.6°C (29.1°F).Humidity
In Stilli, the average relative humidity in December is 87%.Rainfall
In December, in Stilli, the rain falls for 12 days. Throughout December, 76mm (2.99") of precipitation is accumulated. In Stilli, during the entire year, the rain falls for 157.5 days and collects up to 712mm (28.03") of precipitation.Snowfall
Months with snowfall in Stilli are January through May, October through December. December is the month with the most snowfall. Snow falls for 11.5 days and accumulates 232mm (9.13") of snow.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year in Stilli.On the first day of December, sunrise is at 07:54 and sunset at 16:38. On the last day of the month, sunrise is at 08:14 and sunset at 16:45 CET.
Sunshine
In December, the average sunshine in Stilli is 4.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Stilli. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
How cold is December in Stilli?
What is the average humidity in December in Stilli?
How much does it rain in Stilli in December?
When does it snow the most in Stilli?
How much does it snow in Stilli in December?
What is the month with the shortest days in Stilli?
What is the average length of the day in December in Stilli?
When are sunrise and sunset in December in Stilli?
How long on average sun shines in December in Stilli?
What is the month with the lowest UV index in Stilli?
What is the UV index intensity in December in Stilli?
Average temperature in December
Stilli, Switzerland
- Average high temperature in December: 4.2°C
The warmest months (with the highest average high temperature) are July and August (24.4°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in December: -1.6°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-3.1°C).
Average pressure in December
Stilli, Switzerland
- Average pressure in December: 1020.8mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in December
Stilli, Switzerland
- Average wind speed in December: 7.6km/h
The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).
Average humidity in December
Stilli, Switzerland
- Average humidity in December: 87%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in December
Stilli, Switzerland
- Average rainfall in December: 76mm
The wettest month (with the highest rainfall) is August (82mm).
The driest months (with the least rainfall) are April and September (38mm).
Average rainfall days in December
Stilli, Switzerland
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in December
Stilli, Switzerland
- Average snowfall in December: 232mm
The month with the highest snowfall is December (232mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Stilli, Switzerland
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Stilli, Switzerland
- 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Stilli, Switzerland
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (11 days).
Average UV index in December
Stilli, 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, November and December (UV index 2).
Average cloud cover in December
Stilli, Switzerland
- Average cloud cover in December: 51
The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Stilli, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are April, July and August (9km).
The months with the lowest visibility are January and February (7km).
Stilli, Switzerland
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