Welt

Nordamerika

Olympia Regional Airport





Number of days available for climatic review

ParameterJanFebMärAprMaiJun
Tmax160114521599155315941556
Tmin160314491607155215991555
Sonnenscheindauer000000
Niederschlag126113125121124120
Feuchte/Sicht114104112111114112


ParameterJulAugSepOktNovDez
Tmax160415981544163215811629
Tmin160716011557162915861637
Sonnenscheindauer000000
Niederschlag126126123154149155
Feuchte/Sicht109110106137138151


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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