Number of days available for climatic review
| parametr | sty | lut | mar | kwi | maj | cze |
| Tmax | 19 | 10 | 18 | 24 | 5 | 0 |
| Tmin | 27 | 22 | 26 | 25 | 7 | 0 |
| słońce (godz.) | 0 | 0 | 0 | 0 | 0 | 0 |
| opad | 11 | 10 | 11 | 6 | 5 | 10 |
| wilgotność / widzialność | 147 | 0 | 562676744 | 8 | 562677768 | 8 |
| parametr | lip | sie | wrz | paź | lis | gru |
| Tmax | 2 | 1 | 6 | 18 | 22 | 26 |
| Tmin | 8 | 1 | 4 | 23 | 25 | 28 |
| słońce (godz.) | 0 | 0 | 0 | 0 | 0 | 0 |
| opad | 17 | 4 | 0 | 0 | 0 | 0 |
| wilgotność / widzialność | 562678792 | 8 | 562692104 | 8 | 562693128 | 8 |
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. |
