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Ευρώπη

Bilbao/Sondica





Number of days available for climatic review

ΠαράμετροςΙανΦεβ ΜαρΑπρΙουνΙουλ
Tmax766713797774804774
Tmin783721803777803776
Διάρκεια Ηλιοφάνειας131124128115127130
Υετός806728805781806780
Υγρασία/Ορατότητα 10799116112113112


ΠαράμετροςΑυγΣεπΟκτΝοεΔεκ(null)
Tmax799821799822796773
Tmin801821800820803783
Διάρκεια Ηλιοφάνειας13215415813693135
Υετός810839814834810812
Υγρασία/Ορατότητα 115127130128127111


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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