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Retz (323m)





Number of days available for climatic review

ΠαράμετροςΙανΦεβ ΜαρΑπρΙουνΙουλ
Tmax169158174156176170
Tmin177161179155177174
Διάρκεια Ηλιοφάνειας000000
Υετός190174190191205186
Υγρασία/Ορατότητα 176160179158176175


ΠαράμετροςΑυγΣεπΟκτΝοεΔεκ(null)
Tmax170162198194162175
Tmin172156201190170173
Διάρκεια Ηλιοφάνειας000000
Υετός191206222218182187
Υγρασία/Ορατότητα 173157200194165172


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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