Number of days available for climatic review
| parametr | sty | lut | mar | kwi | maj | cze |
| Tmax | 1192 | 1089 | 1229 | 1187 | 1237 | 1169 |
| Tmin | 1191 | 1091 | 1228 | 1190 | 1235 | 1168 |
| słońce (godz.) | 0 | 0 | 0 | 0 | 0 | 0 |
| opad | 721 | 646 | 744 | 716 | 746 | 720 |
| wilgotność / widzialność | 96 | 87 | 117 | 110 | 127 | 123 |
| parametr | lip | sie | wrz | paź | lis | gru |
| Tmax | 1183 | 1190 | 1153 | 1227 | 1199 | 1209 |
| Tmin | 1186 | 1198 | 1169 | 1233 | 1198 | 1212 |
| słońce (godz.) | 0 | 0 | 0 | 0 | 0 | 0 |
| opad | 728 | 748 | 732 | 747 | 722 | 724 |
| wilgotność / widzialność | 104 | 107 | 107 | 113 | 122 | 96 |
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. |
