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Kirensk (259m)





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax369336371374391386
Tmin370337371373394385
Duration of sunshine304311308312390357
Precipitation6457628010492
Humidity/Visibility615660738188


ParameterJulAugSepOctNovDec
Tmax401398385397385399
Tmin396399385394382399
Duration of sunshine363398384361292304
Precipitation1009690909496
Humidity/Visibility908886858691


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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Kirensk

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