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
The advent of December brings a slight shift in average high-temperature, moving from a cold 2.1°C (35.8°F) in November to a freezing cold -1.5°C (29.3°F). Throughout the month of December, Orsières witnesses an average low-temperature of -10.5°C (13.1°F).Humidity
In December, the average relative humidity is 86%.Rainfall
In Orsières, in December, during 7.4 rainfall days, 109mm (4.29") of precipitation is typically accumulated. In Orsières, Switzerland, during the entire year, the rain falls for 153.5 days and collects up to 903mm (35.55") of precipitation.Snowfall
January through May, August through December are months with snowfall. The month with the most snowfall is December, when snow falls for 15.3 days and typically aggregates up to 669mm (26.34") of snow.Daylight
December has the shortest days of the year in Orsières, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 07:53 and sunset at 16:47. On the last day of December, in Orsières, sunrise is at 08:13 and sunset at 16:55 CET.
Sunshine
January and December, with an average of 4.7h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Orsières in December?
What is the average humidity in December in Orsières?
How much does it rain in Orsières in December?
What is the snowiest month in Orsières?
How much does it snow in Orsières in December?
What is the month with the shortest days in Orsières?
What is the average length of the day in December in Orsières?
When are sunrise and sunset in December in Orsières?
What are the months with the least sunshine in Orsières?
How many hours of sunshine does Orsières have in December?
When is the lowest UV index in Orsières?
How high is the UV index in December in Orsières?
Average temperature in December
Orsières, Switzerland
- Average high temperature in December: -1.5°C
The warmest month (with the highest average high temperature) is August (16.2°C).
The month with the lowest average high temperature is January (-2.9°C).
- Average low temperature in December: -10.5°C
The months with the highest average low temperature are July and August (5.6°C).
The coldest month (with the lowest average low temperature) is January (-12.3°C).
Average pressure in December
Orsières, 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 (1015.2mbar).
Average wind speed in December
Orsières, Switzerland
- Average wind speed in December: 8.7km/h
The windiest months (with the highest average wind speed) are November and December (8.7km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in December
Orsières, Switzerland
- Average humidity in December: 86%
The month with the highest relative humidity is March (91%).
The month with the lowest relative humidity is August (79%).
Average rainfall in December
Orsières, Switzerland
- Average rainfall in December: 109mm
The wettest month (with the highest rainfall) is May (117mm).
The driest month (with the least rainfall) is September (43mm).
Average rainfall days in December
Orsières, Switzerland
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in December
Orsières, Switzerland
- Average snowfall in December: 669mm
The month with the highest snowfall is December (669mm).
The months with the least snowfall are June and July (0mm).
Average snowfall days in December
Orsières, Switzerland
- Average snowfall days in December: 15.3 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in December /
Average sunshine in December
Orsières, Switzerland
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and December (Average sunshine: 4h and 42min).
Average sunshine days in December
Orsières, Switzerland
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is May (6.3 days).
Average UV index in December
Orsières, Switzerland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Orsières, Switzerland
- Average cloud cover in December: 49
The months with the most cloud cover are February, March and May (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in December
Orsières, 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).
