World

Europe

Florennes (299m)





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax121211141229119312291193
Tmin121511171233119412301190
Duration of sunshine000000
Precipitation779700782757784750
Humidity/Visibility178162178173178174


ParameterJulAugSepOctNovDec
Tmax123112301219125812171261
Tmin123112311217126012221259
Duration of sunshine000000
Precipitation775792786806780812
Humidity/Visibility180174200204199204


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.