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
December brings a slight decrease in the average high-temperature, shifting from a chilly 6°C (42.8°F) in November to a wintry 2.7°C (36.9°F). During December, the average low-temperature is a subzero cold -4°C (24.8°F).Humidity
In December, the average relative humidity is 78%.Rainfall
In Isone, in December, it is raining for 6.4 days, with typically 38mm (1.5") of accumulated precipitation. Throughout the year, in Isone, there are 137.8 rainfall days, and 669mm (26.34") of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Isone. In Isone, in December, during 0.6 snowfall days, 3mm (0.12") of snow is typically accumulated. Throughout the year, in Isone, there are 4.8 snowfall days, and 33mm (1.3") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of December in Isone, Switzerland, sunrise is at 07:46 and sunset at 16:40. On the last day of the month, sunrise is at 08:06 and sunset at 16:48 CET.
Sunshine
In Isone, the average sunshine in December is 6.4h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Isone?
What is the average humidity in December in Isone?
How many days does it rain in December in Isone?
How much does it snow in Isone in December?
What is the month with the shortest days in Isone?
What is the average length of the day in December in Isone?
What time are sunrise and sunset in December in Isone?
How many hours of sunshine does Isone have in December?
When is the lowest UV index in Isone?
What is the UV index intensity in December in Isone?
Average temperature in December
Isone, Switzerland
- Average high temperature in December: 2.7°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (1.6°C).
- Average low temperature in December: -4°C
The months with the highest average low temperature are July and August (11.1°C).
The coldest month (with the lowest average low temperature) is February (-5.1°C).
Average pressure in December
Isone, Switzerland
- Average pressure in December: 1020.6mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in December
Isone, Switzerland
- Average wind speed in December: 7km/h
The windiest month (with the highest average wind speed) is February (7.4km/h).
The calmest month (with the lowest average wind speed) is November (5.7km/h).
Average humidity in December
Isone, Switzerland
- Average humidity in December: 78%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is July (75%).
Average rainfall in December
Isone, Switzerland
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is November (118mm).
The driest month (with the least rainfall) is January (15mm).
Average rainfall days in December
Isone, Switzerland
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Isone, Switzerland
- Average snowfall in December: 3mm
The month with the highest snowfall is February (12mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Isone, Switzerland
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Isone, 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 30min).
Average sunshine days in December
Isone, Switzerland
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is January (23.7 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Isone, 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, March, October, November and December (UV index 2).
Average cloud cover in December
Isone, 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 25).
Average visibility in December
Isone, Switzerland
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August and December (9km).
The months with the lowest visibility are September, October and November (8km).
