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Ευρώπη

Cologne Bonn Airport





Number of days available for climatic review

ΠαράμετροςΙανΦεβ ΜαρΑπρΙουνΙουλ
Tmax10159201044101510531019
Tmin10189251044101610541016
Διάρκεια Ηλιοφάνειας625449373842
Υετός527476527510527510
Υγρασία/Ορατότητα 000000


ΠαράμετροςΑυγΣεπΟκτΝοεΔεκ(null)
Tmax102710241001103610161025
Tmin103510431015103610111025
Διάρκεια Ηλιοφάνειας212942443053
Υετός527527510527510527
Υγρασία/Ορατότητα 000000


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.