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
Gilly records a mild change in average high-temperature during December, easing from a frosty 7.7°C (45.9°F) in November to an icy 3.8°C (38.8°F). Gilly experiences an average low-temperature of -1.6°C (29.1°F) in the month of December.Humidity
In Gilly, the average relative humidity in December is 87%.Rainfall
The month with the most rainfall in Gilly, Switzerland, is December, when the rain falls for 10.1 days and typically aggregates up to 173mm (6.81") of precipitation.Snowfall
Months with snowfall are January through May, September through December. The month with the most snowfall is December, when snow falls for 16.7 days and typically aggregates up to 833mm (32.8") of snow.Daylight
December has the shortest days of the year in Gilly, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 07:58 and sunset at 16:49. On the last day of December, in Gilly, sunrise is at 08:18 and sunset at 16:57 CET.
Sunshine
December has the least sunshine of the year, with an average of 4.2h of sunshine.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Gilly. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Gilly in December?
What is the average humidity in December in Gilly?
What is the rainiest month in Gilly?
How much does it rain in Gilly in December?
What is the snowiest month in Gilly?
How many days does it snow in December in Gilly?
What is the month with the shortest days in Gilly?
How many hours of daylight does Gilly have in December?
When is the sunrise / sunset in December in Gilly?
What is the month with the least sunshine in Gilly?
How many hours of sunshine does Gilly have in December?
When is the lowest UV index in Gilly?
What is the UV index reading in December in Gilly?
Average temperature in December
Gilly, Switzerland
- Average high temperature in December: 3.8°C
The warmest months (with the highest average high temperature) are July and August (21.8°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in December: -1.6°C
The month with the highest average low temperature is July (11.2°C).
The coldest month (with the lowest average low temperature) is February (-3.7°C).
Average pressure in December
Gilly, Switzerland
- Average pressure in December: 1021.2mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in December
Gilly, Switzerland
- Average wind speed in December: 10.6km/h
The windiest month (with the highest average wind speed) is February (10.8km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in December
Gilly, Switzerland
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are July and August (81%).
Average rainfall in December
Gilly, Switzerland
- Average rainfall in December: 173mm
The wettest month (with the highest rainfall) is December (173mm).
The driest month (with the least rainfall) is September (84mm).
Average rainfall days in December
Gilly, Switzerland
- Average rainfall days in December: 10.1 days
The months with the highest number of rainy days are May and June (22.8 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in December
Gilly, Switzerland
- Average snowfall in December: 833mm
The month with the highest snowfall is December (833mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Gilly, Switzerland
- Average snowfall days in December: 16.7 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Gilly, 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 42min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Gilly, Switzerland
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is October (13.5 days).
The month with the least sunshine days is June (5.9 days).
Average UV index in December
Gilly, 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
Gilly, Switzerland
- Average cloud cover in December: 56
The months with the most cloud cover are January, February and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Gilly, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (8km).
The month with the lowest visibility is January (7km).
