Monde

Europe

Varna





Number of days available for climatic review

Paramètrejanfevmaravrmaijuin
Tmax124611411266121912641223
Tmin124511471263122412631223
Durée d’insolation459389361442462446
Précipitation186169187181186182
Humidité/Visibilité184167184179184178


Paramètrejuilletaoûtsepoctnovdéc
Tmax126712661253128012551300
Tmin126512671246127412531298
Durée d’insolation429497502397409483
Précipitation186190212204210217
Humidité/Visibilité184184206194206215


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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