World

Europe

Alta





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax729656731694731713
Tmin733660730701731710
Duration of sunshine000000
Precipitation654591655631653630
Humidity/Visibility1089510697108104


ParameterJulAugSepOctNovDec
Tmax730758731747722745
Tmin737755739750724754
Duration of sunshine000000
Precipitation653685655676652687
Humidity/Visibility110126125119116122


Climate data is usually derived from meteorological data of a certain number of years. The actual number of recorded years may vary from only a couple to 50 years or more. The quality of climate data depends on the number of available recorded years. Fewer years means less reliable data. The standart-period for reliable climate data is 30 years. For example, the mean monthly temperature for, let's say January, would ideally calculated from a total number of 930 recorded January-days. However, the usual number of recorded days is much smaller. The table above shows the actual number of recorded days for every parameter measured.

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