Welt

Europa

Rotterdam Den Haag Flughafen





Number of days available for climatic review

ParameterJanFebMärAprMaiJun
Tmax178163184177185178
Tmin182167184177185176
Sonnenscheindauer000000
Niederschlag000007
Feuchte/Sicht000000


ParameterJulAugSepOktNovDez
Tmax175176207208194190
Tmin175176208209194188
Sonnenscheindauer000000
Niederschlag000000
Feuchte/Sicht000000


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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