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Climate in Aosta Valley Italy

Average daytime and nighttime temperatures


All climatic diagrams on this site result from the collected data from two measuring weather stations in Aosta Valley.
Weather stations at an altitude above 3490m have not been included.
All data correspond to the average monthly values of the last 20 years.


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Aosta Valley is the coldest region in Italy with an average high temperature of only 0°C. The climate is predominantly frosty cold and in the winter months the mercury column does not even reach the positive range. In the cold season even the maximum temperatures are well below zero. Due to the warmer temperatures the best time for traveling is from May to October. Winter athletes will find their favorite weather conditions from November to April.
Overview: Climate in Italy
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Hours of sunshine per daySunshine hours per day in Aosta Valley
The number of hours of sunshine refers to the time when the sun is actually visible. That is, without any obstruction of visibility by clouds, fog or mountains. With 8 hours per day, July is the sunniest month in the region of Aosta Valley. In December the sun shines the shortest.
Rainy days per monthRainy days per month in Aosta Valley
A rainy day is a day on which at least an amount of 0.1 mm precipitation (=0.1 liter) per square meter falls. This can be rain, snow, hail or even dew. So it does not have to rain the whole day. With 12 rainy days, May offers the most number of rainy days, and in September the least.
Precipitation in mm/dayPrecipitation in Aosta Valley
The amount of precipitation is measured in millimeters per square meter. Thus, at two mm/day, two liters of water fall on one square meter within 24 hours. With only 24.7 mm, the least rain falls in July. November, on the other hand, has the most rain.
Map of Aosta Valley

Most important cities in the region »Aosta Valley«

Only very small villages are located here. The two biggest are Aosta and Chatillon.

CityPopulationGeo position
Aosta32,29545° 44' 16"N7° 19' 2"E
Chatillon4,33445° 44' 60"N7° 37' 0"E


Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants: geonames.org, United Nations Statistics Division and own research.
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