Number of days available for climatic review
| parametr | sty | lut | mar | kwi | maj | cze |
| Tmax | 1001 | 922 | 1020 | 997 | 1046 | 1014 |
| Tmin | 1004 | 923 | 1021 | 1002 | 1046 | 1014 |
| słońce (godz.) | 60 | 51 | 46 | 36 | 39 | 50 |
| opad | 496 | 448 | 496 | 480 | 496 | 480 |
| wilgotność / widzialność | 0 | 0 | 0 | 0 | 0 | 0 |
| parametr | lip | sie | wrz | paź | lis | gru |
| Tmax | 1026 | 1018 | 995 | 1043 | 1012 | 1041 |
| Tmin | 1028 | 1027 | 1001 | 1037 | 1014 | 1042 |
| słońce (godz.) | 23 | 14 | 14 | 23 | 25 | 24 |
| opad | 496 | 496 | 480 | 496 | 480 | 496 |
| 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. |
