Number of days available for climatic review
| parametr | sty | lut | mar | kwi | maj | cze |
| Tmax | 2112 | 1924 | 2110 | 2060 | 2123 | 2061 |
| Tmin | 2113 | 1928 | 2123 | 2060 | 2125 | 2063 |
| słońce (godz.) | 0 | 0 | 0 | 0 | 0 | 0 |
| opad | 186 | 169 | 175 | 181 | 186 | 180 |
| wilgotność / widzialność | 177 | 160 | 171 | 177 | 178 | 177 |
| parametr | lip | sie | wrz | paź | lis | gru |
| Tmax | 2125 | 2128 | 2084 | 2158 | 2087 | 2160 |
| Tmin | 2135 | 2135 | 2095 | 2159 | 2094 | 2161 |
| słońce (godz.) | 0 | 0 | 0 | 0 | 0 | 0 |
| opad | 188 | 190 | 210 | 215 | 208 | 217 |
| wilgotność / widzialność | 182 | 182 | 202 | 207 | 194 | 208 |
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. |
