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Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax118910901230119512261200
Tmin119010911229119912271197
Duration of sunshine217226217210248240
Precipitation000000
Humidity/Visibility000000


ParameterJulAugSepOctNovDec
Tmax122812301213126312271237
Tmin123312311218126312291242
Duration of sunshine248248240248180217
Precipitation000000
Humidity/Visibility000000


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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