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
A moderate decline in average high-temperatures is noted in December, moving from a frosty 8.8°C (47.8°F) in November to a cold 5.1°C (41.2°F). Grellingen observes an average nighttime temperature of -0.1°C (31.8°F) during December.Humidity
In Grellingen, the average relative humidity in December is 85%.Rainfall
In Grellingen, during December, the rain falls for 14.5 days and regularly aggregates up to 68mm (2.68") of precipitation. Throughout the year, in Grellingen, Switzerland, there are 178.8 rainfall days, and 677mm (26.65") of precipitation is accumulated.Snowfall
January through March, October through December are months with snowfall in Grellingen, Switzerland. December is the month with the most snowfall. Snow falls for 5.8 days and accumulates 61mm (2.4") of snow.Daylight
The month with the shortest days in Grellingen is December, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 07:56 and sunset at 16:40. On the last day of the month, sunrise is at 08:17 and sunset at 16:48 CET.
Sunshine
December has the least sunshine of the year in Grellingen, with an average of 4.6h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
How cold is it in Grellingen in December?
What is the average humidity in December in Grellingen?
How many days does it rain in December in Grellingen?
What is the snowiest month in Grellingen?
How much does it snow in Grellingen in December?
What is the month with the shortest days in Grellingen?
What is the average length of the day in December in Grellingen?
When are sunrise and sunset in December in Grellingen?
What is the month with the least sunshine in Grellingen?
How long on average sun shines in December in Grellingen?
What are the months with the lowest UV index in Grellingen?
How high is the UV index in December in Grellingen?
Average temperature in December
Grellingen, Switzerland
- Average high temperature in December: 5.1°C
The warmest month (with the highest average high temperature) is August (24.1°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in December: -0.1°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).
Average pressure in December
Grellingen, Switzerland
- Average pressure in December: 1020.7mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The months with the lowest atmospheric pressure are April and November (1015.7mbar).
Average wind speed in December
Grellingen, Switzerland
- Average wind speed in December: 9.7km/h
The windiest months (with the highest average wind speed) are February and March (9.9km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in December
Grellingen, 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 (77%).
Average rainfall in December
Grellingen, Switzerland
- Average rainfall in December: 68mm
The wettest month (with the highest rainfall) is June (84mm).
The driest month (with the least rainfall) is September (33mm).
Average rainfall days in December
Grellingen, Switzerland
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is October (11.5 days).
Average snowfall in December
Grellingen, Switzerland
- Average snowfall in December: 61mm
The month with the highest snowfall is December (61mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in December
Grellingen, Switzerland
- Average snowfall days in December: 5.8 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grellingen, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Grellingen, Switzerland
- Average sunshine days in December: 12.4 days
The month with the most sunshine days is October (16.8 days).
The months with the least sunshine days are May and June (8.3 days).
Average UV index in December
Grellingen, 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
Grellingen, Switzerland
- Average cloud cover in December: 53
The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Grellingen, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
Grellingen, Switzerland
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