świat

Europa

Kazań (116m)





Number of days available for climatic review

parametrstylutmarkwimajcze
Tmax109910051114110411441107
Tmin109610061114110011421106
słońce (godz.)217226217180155240
opad122110124150155150
wilgotność / widzialność121109122142150148


parametrlipsiewrzpaźlisgru
Tmax114511421107113711071141
Tmin114011411105113511051141
słońce (godz.)248248210248240248
opad156156151153151155
wilgotność / widzialność153151147148148152


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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