Number of days available for climatic review
| parametr | sty | lut | mar | kwi | maj | cze |
| Tmax | 1023 | 924 | 1023 | 990 | 1023 | 990 |
| Tmin | 1023 | 924 | 1023 | 990 | 1023 | 990 |
| słońce (godz.) | 0 | 0 | 0 | 0 | 0 | 0 |
| opad | 0 | 0 | 0 | 27 | 31 | 30 |
| wilgotność / widzialność | 0 | 0 | 0 | 0 | 0 | 0 |
| parametr | lip | sie | wrz | paź | lis | gru |
| Tmax | 1023 | 1023 | 990 | 1023 | 990 | 1023 |
| Tmin | 1023 | 1023 | 990 | 1023 | 990 | 1023 |
| słońce (godz.) | 0 | 0 | 0 | 0 | 0 | 0 |
| opad | 22 | 0 | 4 | 31 | 30 | 31 |
| wilgotność / widzialność | 0 | 0 | 0 | 0 | 0 | 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. |
