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
Weather in December
Temperature
A moderate decline in average high-temperatures is noted in December, moving from an icy 4°C (39.2°F) in November to a freezing cold -0.1°C (31.8°F). Riein records a steady low-temperature average of -7.9°C (17.8°F) during December.Humidity
In Riein, the average relative humidity in December is 85%.Rainfall
In Riein, during December, the rain falls for 7.6 days and regularly aggregates up to 34mm (1.34") of precipitation. In Riein, during the entire year, the rain falls for 142.4 days and collects up to 455mm (17.91") of precipitation.Snowfall
Months with snowfall are January through May, September through December. In December, it is snowing for 12.2 days. Throughout December, 123mm (4.84") of snow is accumulated. Throughout the year, there are 75.1 snowfall days, and 712mm (28.03") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 07:47 and sunset at 16:36. On the last day of the month, sunrise is at 08:07 and sunset at 16:44 CET.
Sunshine
In Riein, the average sunshine in December is 5.2h.UV index
The average daily maximum UV index in December in Riein is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 in December translates into this advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
How cold is December in Riein?
What is the average humidity in December in Riein?
How much does it rain in Riein in December?
How many days does it snow in December in Riein?
What is the month with the shortest days in Riein?
How many hours of daylight does Riein have in December?
When are sunrise and sunset in December in Riein?
How many hours of sunshine does Riein have in December?
How high is the UV index in December in Riein?
Average temperature in December
Riein, Switzerland
- Average high temperature in December: -0.1°C
The warmest months (with the highest average high temperature) are July and August (18.5°C).
The month with the lowest average high temperature is January (-1.7°C).
- Average low temperature in December: -7.9°C
The month with the highest average low temperature is August (7°C).
The coldest month (with the lowest average low temperature) is February (-10.1°C).
Average pressure in December
Riein, 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 (1015.4mbar).
Average wind speed in December
Riein, Switzerland
- Average wind speed in December: 7.6km/h
The windiest month (with the highest average wind speed) is November (8km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).
Average humidity in December
Riein, Switzerland
- Average humidity in December: 85%
The month with the highest relative humidity is March (91%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in December
Riein, Switzerland
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is August (71mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in December
Riein, Switzerland
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Riein, Switzerland
- Average snowfall in December: 123mm
The month with the highest snowfall is January (144mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Riein, Switzerland
- Average snowfall days in December: 12.2 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Riein, 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 36min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Riein, Switzerland
- Average sunshine days in December: 16 days
The month with the most sunshine days is October (17.9 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in December
Riein, Switzerland
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in December
Riein, Switzerland
- Average cloud cover in December: 47
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Riein, Switzerland
- Average visibility in December: 7km
The months with the highest visibility are June, July, August and October (8km).
The months with the lowest visibility are January, February and March (6km).
Riein, Switzerland
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