December weather forecastUster, Switzerland
December
Weather in December
December in Uster is characteristically cold, with temperatures plunging between -2.7°C (27.1°F) and 3.2°C (37.8°F) - the coldest month of the year. This time of year sees hefty snowfall, reaching 160mm (6.3"), creating a breathtaking winter landscape. The city begins to glitter under the holiday lights as snow blankets the ground, bringing with it the magic of the festive season. The shortened days of December bring chilly and dark nights, perfect for cozy evenings spent indoors. Despite the sharp cold, the breathtaking vistas of winter Uster are worth braving the biting wind.Temperature
December's onset brings a negligible change in high-temperatures, falling from a chilly 7.5°C (45.5°F) in November to an icy 3.2°C (37.8°F). Uster records an average temperature drop to a freezing cold -2.7°C (27.1°F) in December.Humidity
In December, the average relative humidity in Uster is 87%.Rainfall
In Uster, in December, it is raining for 9.8 days, with typically 56mm (2.2") of accumulated precipitation. Throughout the year, there are 151 rainfall days, and 623mm (24.53") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Uster, in December, snow falls for 10.2 days, with typically accumulated 160mm (6.3") of snow. In Uster, Switzerland, during the entire year, snow falls for 50.4 days and aggregates up to 753mm (29.65") of snow.Daylight
December has the shortest days of the year in Uster, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 07:51 and sunset at 16:36. On the last day of December, sunrise is at 08:12 and sunset at 16:44 CET.
Sunshine
In December, the average sunshine in Uster is 4.7h.UV index
November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Uster, Switzerland
- Average high temperature in December: 3.2°C
The warmest months (with the highest average high temperature) are July and August (22.5°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in December: -2.7°C
The month with the highest average low temperature is August (11.1°C).
The coldest months (with the lowest average low temperature) are January and February (-4.3°C).
Average pressure in December
Uster, 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 (1015.6mbar).
Average wind speed in December
Uster, Switzerland
- Average wind speed in December: 7.9km/h
The windiest month (with the highest average wind speed) is March (8km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in December
Uster, Switzerland
- Average humidity in December: 87%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is July (78%).
Average rainfall in December
Uster, Switzerland
- Average rainfall in December: 56mm
The wettest month (with the highest rainfall) is May (82mm).
The driest month (with the least rainfall) is November (31mm).
Average rainfall days in December
Uster, Switzerland
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in December
Uster, Switzerland
- Average snowfall in December: 160mm
The month with the highest snowfall is January (202mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Uster, Switzerland
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Uster, 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 42min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Uster, Switzerland
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Uster, Switzerland
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in December
Uster, Switzerland
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Uster, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January and February (7km).
