Welt

Nordamerika

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Number of days available for climatic review

ParameterJanFebMärAprMaiJun
Tmax155213921544145615031469
Tmin155413911533145614991467
Sonnenscheindauer000000
Niederschlag142121141137133146
Feuchte/Sicht847691818186


ParameterJulAugSepOktNovDez
Tmax151615161472150214561499
Tmin151915151466149414541498
Sonnenscheindauer000000
Niederschlag139165164170165177
Feuchte/Sicht79101102100100100


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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