December weather forecastRiedholz, Switzerland
December weather for Riedholz, Switzerland: In Riedholz, Switzerland, in December, during 15.2 rainfall days, 81mm (3.19") of precipitation is typically accumulated. In Riedholz, during December, snow falls for 7.9 days and regularly aggregates up to 143mm (5.63") of snow.
December
Weather in December
December, the first month of the winter in Riedholz, is still a cold month, with temperature in the range of an average low of -1.7°C (28.9°F) and an average high of 4.2°C (39.6°F).Temperature
December marks a gentle change in average high-temperature, declining from November's frosty 8.3°C (46.9°F) to a cold 4.2°C (39.6°F). Riedholz reports a consistent average low-temperature of -1.7°C (28.9°F) throughout December nights.Humidity
The average relative humidity in December is 86%.Rainfall
In Riedholz, during December, the rain falls for 15.2 days and regularly aggregates up to 81mm (3.19") of precipitation. Throughout the year, in Riedholz, Switzerland, there are 190.8 rainfall days, and 880mm (34.65") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, in Riedholz, it is snowing for 7.9 days. Throughout December, 143mm (5.63") of snow is accumulated. Throughout the year, there are 39.9 snowfall days, and 652mm (25.67") of snow is accumulated.Daylight
December has the shortest days of the year in Riedholz, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 07:56 and sunset at 16:41. On the last day of the month, sunrise is at 08:16 and sunset at 16:49 CET.
Sunshine
With an average of 5h of sunshine, December has the least sunshine of the year in Riedholz.UV index
The months with the lowest UV index in Riedholz are January, February, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Riedholz, Switzerland
- Average high temperature in December: 4.2°C
The warmest months (with the highest average high temperature) are July and August (23.3°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in December: -1.7°C
The months with the highest average low temperature are July and August (11.8°C).
The coldest month (with the lowest average low temperature) is February (-3.4°C).
Average pressure in December
Riedholz, Switzerland
- Average pressure in December: 1020.9mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in December
Riedholz, Switzerland
- Average wind speed in December: 8.5km/h
The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in December
Riedholz, Switzerland
- Average humidity in December: 86%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and July (78%).
Average rainfall in December
Riedholz, Switzerland
- Average rainfall in December: 81mm
The wettest month (with the highest rainfall) is May (106mm).
The driest month (with the least rainfall) is September (45mm).
Average rainfall days in December
Riedholz, Switzerland
- Average rainfall days in December: 15.2 days
The month with the highest number of rainy days is May (22.4 days).
The month with the least rainy days is February (10.6 days).
Average snowfall in December
Riedholz, Switzerland
- Average snowfall in December: 143mm
The month with the highest snowfall is February (153mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Riedholz, Switzerland
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Riedholz, Switzerland
- Average daylight in December: 8h and 36min
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 36min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Riedholz, Switzerland
- Average sunshine days in December: 12.4 days
The month with the most sunshine days is October (15 days).
The month with the least sunshine days is May (6.6 days).
Average UV index in December
Riedholz, 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, October, November and December (UV index 2).
Average cloud cover in December
Riedholz, Switzerland
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Riedholz, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
