świat

Europa

Siirt (896m)





Number of days available for climatic review

parametrstylutmarkwimajcze
Tmax274245297317329321
Tmin277247301316338327
słońce (godz.)183163208221239225
opad10195135160159156
wilgotność / widzialność8776110135145142


parametrlipsiewrzpaźlisgru
Tmax331318320326316330
Tmin336333326330326338
słońce (godz.)224218227225262271
opad160163157153156161
wilgotność / widzialność145142143145142147


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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