Number of days available for climatic review
| parametr | sty | lut | mar | kwi | maj | cze |
| Tmax | 0 | 1024 | 1048576 | 1048576 | 1074791425 | 1074791425 |
| Tmin | 825241661 | 1297557048 | 829963599 | 3617332 | 1431389522 | 1599361861 |
| słońce (godz.) | 1 | 0 | -2143259776 | 0 | 5588205 | 0 |
| opad | 0 | 0 | 0 | 0 | 0 | 0 |
| wilgotność / widzialność | 522336882 | 2015419791 | -1976572928 | 0 | 0 | 0 |
| parametr | lip | sie | wrz | paź | lis | gru |
| Tmax | 1074791425 | 1074791425 | 0 | 269485056 | 0 | 269485056 |
| Tmin | 1028215381 | 1768383279 | 0 | 0 | 0 | 0 |
| słońce (godz.) | 255 | 0 | 0 | -268435456 | 0 | 0 |
| opad | 0 | 0 | 0 | 0 | 0 | 0 |
| wilgotność / widzialność | 0 | 0 | -2143260976 | 0 | -1976800996 | 0 |
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. |
