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Ust’-Usa





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax559504558540558540
Tmin559504558540558540
Duration of sunshine000000
Precipitation560505558557589574
Humidity/Visibility605661709187


ParameterJulAugSepOctNovDec
Tmax558558541558540563
Tmin558558540558540563
Duration of sunshine000000
Precipitation591591572586572596
Humidity/Visibility919187858590


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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