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Belfast International Airport





Number of days available for climatic review

ΠαράμετροςΙανΦεβ ΜαρΑπρΙουνΙουλ
Tmax000152929
Tmin000152930
Διάρκεια Ηλιοφάνειας248254279270310300
Υετός000173130
Υγρασία/Ορατότητα 1033206100020


ΠαράμετροςΑυγΣεπΟκτΝοεΔεκ(null)
Tmax3110000
Tmin3020000
Διάρκεια Ηλιοφάνειας310310300310270279
Υετός3240000
Υγρασία/Ορατότητα 14-21474836480000


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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