świat

Europa

Port lotniczy Helsinki-Vantaa





Number of days available for climatic review

parametrstylutmarkwimajcze
Tmax125211471266120212691228
Tmin125511481269120212701227
słońce (godz.)9384124120124120
opad186169187183186180
wilgotność / widzialność183166184178184178


parametrlipsiewrzpaźlisgru
Tmax126912691255129412551298
Tmin126812731254129412561299
słońce (godz.)124124120124120124
opad185189211214212219
wilgotność / widzialność184185207209205213


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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zdjęcie satelitarne

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