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Rybinsk (105m)





Number of days available for climatic review

ΠαράμετροςΙανΦεβ ΜαρΑπρΙουνΙουλ
Tmax112210091115109811371103
Tmin112310141109109211351108
Διάρκεια Ηλιοφάνειας000000
Υετός713627713713745720
Υγρασία/Ορατότητα 11490110119140137


ΠαράμετροςΑυγΣεπΟκτΝοεΔεκ(null)
Tmax114311421101113110981142
Tmin114011411102113311021144
Διάρκεια Ηλιοφάνειας000000
Υετός734745717727694717
Υγρασία/Ορατότητα 139140138128116123


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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