świat

Polska

Kalisz (140m)





Number of days available for climatic review

parametrstylutmarkwimajcze
Tmax701632705679701678
Tmin702636703677703682
słońce (godz.)7276849110798
opad682616682663688660
wilgotność / widzialność111101114103110108


parametrlipsiewrzpaźlisgru
Tmax704732705719677704
Tmin708729708715685704
słońce (godz.)105129125986658
opad684713696704661686
wilgotność / widzialność117136134128109116


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.