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Vyazma (251m)





Number of days available for climatic review

ΠαράμετροςΙανΦεβ ΜαρΑπρΙουνΙουλ
Tmax709640710709742717
Tmin711640710710738718
Διάρκεια Ηλιοφάνειας000000
Υετός715645712716747720
Υγρασία/Ορατότητα 122111121141152149


ΠαράμετροςΑυγΣεπΟκτΝοεΔεκ(null)
Tmax738739717732710743
Tmin737739718734715738
Διάρκεια Ηλιοφάνειας000000
Υετός749746721739724746
Υγρασία/Ορατότητα 152152148145144153


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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Vyazma

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