December weather forecastFlaach, Switzerland
December
Weather in December
The first month of the winter, December, is also a wintry month in Flaach, Switzerland, with an average temperature varying between -1.6°C (29.1°F) and 4.4°C (39.9°F).Temperature
A moderate decline in average high-temperatures is noted in December, moving from a frosty 8.6°C (47.5°F) in November to a wintry 4.4°C (39.9°F). In Flaach, in December, the average low-temperature is a subzero cold -1.6°C (29.1°F).Humidity
The average relative humidity in December is 87%.Rainfall
In Flaach, Switzerland, during December, the rain falls for 11.5 days and regularly aggregates up to 51mm (2.01") of precipitation. In Flaach, during the entire year, the rain falls for 134.8 days and collects up to 471mm (18.54") of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall in Flaach, Switzerland, is December, when snow falls for 6.6 days and typically aggregates up to 85mm (3.35") of snow.Daylight
December has the shortest days of the year in Flaach, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 07:53 and sunset at 16:36. On the last day of December, in Flaach, sunrise is at 08:13 and sunset at 16:44 CET.
Sunshine
The months with the least sunshine are January, February and December, with an average of 4.8h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Flaach. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 2 in December transforms into this advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A hat with a broad brim is indispensable, filtering out up to half of UV rays. 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
Average temperature in December
Flaach, Switzerland
- Average high temperature in December: 4.4°C
The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in December: -1.6°C
The months with the highest average low temperature are July and August (12.2°C).
The coldest month (with the lowest average low temperature) is January (-3.2°C).
Average pressure in December
Flaach, Switzerland
- Average pressure in December: 1020.8mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in December
Flaach, Switzerland
- Average wind speed in December: 7.6km/h
The windiest month (with the highest average wind speed) is March (8.7km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).
Average humidity in December
Flaach, Switzerland
- Average humidity in December: 87%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is July (75%).
Average rainfall in December
Flaach, Switzerland
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is July (61mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in December
Flaach, Switzerland
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (8 days).
Average snowfall in December
Flaach, Switzerland
- Average snowfall in December: 85mm
The month with the highest snowfall is December (85mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Flaach, Switzerland
- Average snowfall days in December: 6.6 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Flaach, Switzerland
- Average daylight in December: 8h and 30min
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 48min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Flaach, Switzerland
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (13.6 days).
Average UV index in December
Flaach, 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
Flaach, Switzerland
- Average cloud cover in December: 51
The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Flaach, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are April, July and August (9km).
The month with the lowest visibility is January (7km).
