Number of days available for climatic review
| parametr | sty | lut | mar | kwi | maj | cze |
| Tmax | 1170 | 1049 | 1162 | 1135 | 1175 | 1135 |
| Tmin | 1139 | 1028 | 1154 | 1132 | 1171 | 1130 |
| słońce (godz.) | 0 | 0 | 0 | 0 | 0 | 0 |
| opad | 0 | 0 | 0 | 0 | 0 | 0 |
| wilgotność / widzialność | 0 | 0 | 0 | 0 | 0 | 0 |
| parametr | lip | sie | wrz | paź | lis | gru |
| Tmax | 1169 | 1172 | 1130 | 1183 | 1165 | 1201 |
| Tmin | 1171 | 1168 | 1131 | 1176 | 1158 | 1173 |
| słońce (godz.) | 0 | 0 | 0 | 0 | 0 | 0 |
| opad | 0 | 0 | 0 | 0 | 0 | 0 |
| 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. |
