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
December registers an average high-temperature of a freezing cold -1.4°C (29.5°F), slightly varied from November's 1.5°C (34.7°F). Nighttime temperature lowers to an average of -9.5°C (14.9°F) in December.Humidity
In Aosta, the average relative humidity in December is 82%.Rainfall
In Aosta, during December, the rain falls for 14.9 days and regularly aggregates up to 88mm (3.46") of precipitation. In Aosta, during the entire year, the rain falls for 244.1 days and collects up to 1363mm (53.66") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Aosta, during December, snow falls for 7.5 days and regularly aggregates up to 153mm (6.02") of snow. Throughout the year, there are 42.8 snowfall days, and 692mm (27.24") of snow is accumulated.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:51 and sunset at 16:48. On the last day of December, sunrise is at 08:11 and sunset at 16:56 CET.
Sunshine
In December, the average sunshine is 5.6h.UV index
In Aosta, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
How cold is it in Aosta in December?
What is the average humidity in December in Aosta?
How many days does it rain in December in Aosta?
How much does it snow in Aosta in December?
What is the month with the shortest days in Aosta?
How many hours of daylight does Aosta have in December?
When are sunrise and sunset in December in Aosta?
How many hours of sunshine does Aosta have in December?
What is the UV index reading in December in Aosta?
Average temperature in December
Aosta, Italy
- Average high temperature in December: -1.4°C
The warmest month (with the highest average high temperature) is July (16.5°C).
The month with the lowest average high temperature is January (-2.7°C).
- Average low temperature in December: -9.5°C
The months with the highest average low temperature are July and August (6.5°C).
The coldest months (with the lowest average low temperature) are January and February (-10.8°C).
Average pressure in December
Aosta, Italy
- Average pressure in December: 1020.7mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1014.9mbar).
Average wind speed in December
Aosta, Italy
- Average wind speed in December: 9km/h
The windiest month (with the highest average wind speed) is December (9km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in December
Aosta, Italy
- Average humidity in December: 82%
The month with the highest relative humidity is March (87%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Aosta, Italy
- Average rainfall in December: 88mm
The wettest month (with the highest rainfall) is May (181mm).
The driest month (with the least rainfall) is September (77mm).
Average rainfall days in December
Aosta, Italy
- Average rainfall days in December: 14.9 days
The month with the highest number of rainy days is May (27 days).
The month with the least rainy days is December (14.9 days).
Average snowfall in December
Aosta, Italy
- Average snowfall in December: 153mm
The month with the highest snowfall is February (175mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Aosta, Italy
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Aosta, Italy
- Average daylight in December: 8h and 5min
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 48min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is November (Average sunshine: 5h and 12min).
Average sunshine days in December
Aosta, Italy
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is October (11.7 days).
The month with the least sunshine days is May (2.7 days).
Average UV index in December
Aosta, Italy
- 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, March and April (UV index 1).
Average cloud cover in December
Aosta, Italy
- Average cloud cover in December: 40
The month with the most cloud cover is May (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Aosta, Italy
- Average visibility in December: 8km
The month with the highest visibility is July (9km).
The months with the lowest visibility are January, February, March, April and May (7km).
Aosta, Italy
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