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Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax114410601175113711531130
Tmin114910661175113811561131
Duration of sunshine000000
Precipitation186171188181186180
Humidity/Visibility183165184178184178


ParameterJulAugSepOctNovDec
Tmax116211681156120111561208
Tmin116611731153120211641206
Duration of sunshine000000
Precipitation186190210215209217
Humidity/Visibility182185206209199211


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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