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
Arosio experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a frosty 9.1°C (48.4°F) in November to a cold 5.4°C (41.7°F). During December nights, Arosio records an average temperature of -1.6°C (29.1°F).Humidity
The average relative humidity in December is 73%.Rainfall
In Arosio, Switzerland, in December, it is raining for 4.1 days, with typically 17mm (0.67") of accumulated precipitation. Throughout the year, there are 102.6 rainfall days, and 414mm (16.3") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Arosio, Switzerland, in December, snow falls for 0.7 days, with typically accumulated 3mm (0.12") of snow. In Arosio, during the entire year, snow falls for 4 days and aggregates up to 23mm (0.91") of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year in Arosio, Switzerland.On the first day of the month, sunrise is at 07:46 and sunset at 16:40. On the last day of December, sunrise is at 08:06 and sunset at 16:48 CET.
Sunshine
In December, the average sunshine is 6.3h.UV index
The months with the lowest UV index in Arosio are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Arosio in December?
What is the average humidity in December in Arosio?
How much does it rain in Arosio in December?
How many days does it snow in December in Arosio?
What is the month with the shortest days in Arosio?
How many hours of daylight does Arosio have in December?
What time are sunrise and sunset in December in Arosio?
How long on average sun shines in December in Arosio?
When is the lowest UV index in Arosio?
How high is the UV index in December in Arosio?
Average temperature in December
Arosio, Switzerland
- Average high temperature in December: 5.4°C
The warmest month (with the highest average high temperature) is July (25.2°C).
The month with the lowest average high temperature is January (4.5°C).
- Average low temperature in December: -1.6°C
The months with the highest average low temperature are July and August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in December
Arosio, Switzerland
- Average pressure in December: 1020.5mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in December
Arosio, Switzerland
- Average wind speed in December: 7.1km/h
The windiest month (with the highest average wind speed) is July (7.7km/h).
The calmest month (with the lowest average wind speed) is November (6.1km/h).
Average humidity in December
Arosio, Switzerland
- Average humidity in December: 73%
The month with the highest relative humidity is November (80%).
The months with the lowest relative humidity are January and July (72%).
Average rainfall in December
Arosio, Switzerland
- Average rainfall in December: 17mm
The wettest month (with the highest rainfall) is November (70mm).
The driest month (with the least rainfall) is January (7mm).
Average rainfall days in December
Arosio, Switzerland
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is December (4.1 days).
Average snowfall in December
Arosio, Switzerland
- Average snowfall in December: 3mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Arosio, Switzerland
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is January (1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Arosio, 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: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in December
Arosio, Switzerland
- Average sunshine days in December: 25.8 days
The month with the most sunshine days is December (25.8 days).
The month with the least sunshine days is June (16.9 days).
Average UV index in December
Arosio, Switzerland
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Arosio, Switzerland
- Average cloud cover in December: 30
The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in December
Arosio, Switzerland
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, November and December (9km).
The month with the lowest visibility is October (8km).
