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
During the shift to December, Caslano records a mild decrease in average high-temperature, moving from a frosty 9.1°C (48.4°F) in November to a wintry 5.4°C (41.7°F). December in Caslano, Switzerland, is noted for a mean low-temperature of -1.6°C (29.1°F).Humidity
In December, the average relative humidity is 73%.Rainfall
In December, the rain falls for 4.1 days. Throughout December, 17mm (0.67") of precipitation is accumulated. Throughout the year, in Caslano, Switzerland, there are 102.6 rainfall days, and 414mm (16.3") of precipitation is accumulated.Snowfall
Months with snowfall in Caslano, Switzerland, are January through March, November and December. In Caslano, in December, snow falls for 0.7 days, with typically accumulated 3mm (0.12") of snow. In Caslano, during the entire year, snow falls for 4 days and aggregates up to 23mm (0.91") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of December in Caslano, Switzerland, sunrise is at 07:46 and sunset at 16:41. On the last day of the month, sunrise is at 08:06 and sunset at 16:49 CET.
Sunshine
In December, the average sunshine is 6.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Caslano. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. When the Sun is at its strongest around midday, find shade and limit exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Caslano during December?
What is the average humidity in December in Caslano?
How many days does it rain in December in Caslano?
How many days does it snow in December in Caslano?
What is the month with the shortest days in Caslano?
What is the average length of the day in December in Caslano?
What time are sunrise and sunset in December in Caslano?
How many hours of sunshine does Caslano have in December?
When is the lowest UV index in Caslano?
What is the UV index intensity in December in Caslano?
Average temperature in December
Caslano, 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
Caslano, 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
Caslano, 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
Caslano, 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
Caslano, 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
Caslano, 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
Caslano, 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
Caslano, 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
Caslano, 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
Caslano, 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
Caslano, 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
Caslano, 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
Caslano, 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).
