World

North America

Astoria Regional Airport





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax193417591938188319181880
Tmin193317551941188119211879
Duration of sunshine000000
Precipitation187169187181186180
Humidity/Visibility180164180175177172


ParameterJulAugSepOctNovDec
Tmax193319391902196619131970
Tmin194219421909197119171969
Duration of sunshine000000
Precipitation186190211215211217
Humidity/Visibility174176196203202210


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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