World

North America

Phoenix Sky Harbor Intl. Airport (337m)





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax208718982098203220922033
Tmin209318992104203420952032
Duration of sunshine625762609390
Precipitation186169187181186180
Humidity/Visibility183165184177179177


ParameterJulAugSepOctNovDec
Tmax209621032044212620632134
Tmin210121022048213020682136
Duration of sunshine936260626062
Precipitation188190210215210217
Humidity/Visibility181183205209206215


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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