World

North America

Vancouver Airport





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax835756835810835810
Tmin837757836809836808
Duration of sunshine432417416441489440
Precipitation186169187181186180
Humidity/Visibility184167184178184179


ParameterJulAugSepOctNovDec
Tmax831837837864838866
Tmin837839838864837867
Duration of sunshine432459438479436425
Precipitation186190210215210217
Humidity/Visibility183184207210206214


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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