Number of days available for climatic review
| parametr | sty | lut | mar | kwi | maj | cze |
| Tmax | 2085 | 1889 | 2087 | 2028 | 2082 | 2025 |
| Tmin | 2096 | 1896 | 2099 | 2028 | 2085 | 2029 |
| słońce (godz.) | 93 | 85 | 62 | 60 | 155 | 150 |
| opad | 186 | 169 | 187 | 181 | 186 | 180 |
| wilgotność / widzialność | 184 | 164 | 183 | 177 | 180 | 173 |
| parametr | lip | sie | wrz | paź | lis | gru |
| Tmax | 2092 | 2093 | 2053 | 2122 | 2063 | 2126 |
| Tmin | 2097 | 2097 | 2059 | 2127 | 2064 | 2131 |
| słońce (godz.) | 155 | 124 | 120 | 93 | 60 | 62 |
| opad | 187 | 190 | 210 | 215 | 210 | 217 |
| wilgotność / widzialność | 178 | 181 | 199 | 205 | 201 | 215 |
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. |
