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
As November makes way for December, Grossaffoltern's average high-temperature eases from a chilly 8.2°C (46.8°F) to an icy 4.2°C (39.6°F). During the nights in December, Grossaffoltern experiences a consistent average temperature of -1.5°C (29.3°F).Humidity
In December, the average relative humidity in Grossaffoltern, Switzerland, is 85%.Rainfall
In Grossaffoltern, Switzerland, in December, during 14.9 rainfall days, 95mm (3.74") of precipitation is typically accumulated. In Grossaffoltern, during the entire year, the rain falls for 195.6 days and collects up to 870mm (34.25") of precipitation.Snowfall
Months with snowfall in Grossaffoltern, Switzerland, are January through May, September through December. In Grossaffoltern, in December, during 7.5 snowfall days, 123mm (4.84") of snow is typically accumulated. Throughout the year, there are 37.6 snowfall days, and 557mm (21.93") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 07:56 and sunset at 16:43. On the last day of the month, sunrise is at 08:16 and sunset at 16:51 CET.
Sunshine
With an average of 4.9h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Grossaffoltern during December?
What is the average humidity in December in Grossaffoltern?
How much does it rain in Grossaffoltern in December?
How many days does it snow in December in Grossaffoltern?
What is the month with the shortest days in Grossaffoltern?
How many hours of daylight does Grossaffoltern have in December?
When is the sunrise / sunset in December in Grossaffoltern?
What is the month with the least sunshine in Grossaffoltern?
How many hours of sunshine does Grossaffoltern have in December?
When is the lowest UV index in Grossaffoltern?
What is the UV index intensity in December in Grossaffoltern?
Average temperature in December
Grossaffoltern, Switzerland
- Average high temperature in December: 4.2°C
The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (2.7°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is July (11.9°C).
The coldest months (with the lowest average low temperature) are January and February (-2.8°C).
Average pressure in December
Grossaffoltern, 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 (1015.6mbar).
Average wind speed in December
Grossaffoltern, Switzerland
- Average wind speed in December: 9.9km/h
The windiest month (with the highest average wind speed) is February (10.2km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in December
Grossaffoltern, Switzerland
- Average humidity in December: 85%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April, July and August (79%).
Average rainfall in December
Grossaffoltern, Switzerland
- Average rainfall in December: 95mm
The wettest month (with the highest rainfall) is June (97mm).
The driest month (with the least rainfall) is September (46mm).
Average rainfall days in December
Grossaffoltern, Switzerland
- Average rainfall days in December: 14.9 days
The month with the highest number of rainy days is May (21.9 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in December
Grossaffoltern, Switzerland
- Average snowfall in December: 123mm
The month with the highest snowfall is February (133mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Grossaffoltern, Switzerland
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Grossaffoltern, 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: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Grossaffoltern, Switzerland
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is May (6.7 days).
Average UV index in December
Grossaffoltern, 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
Grossaffoltern, Switzerland
- Average cloud cover in December: 49
The months with the most cloud cover are January, February and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Grossaffoltern, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
