Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 1911 | 1706 | 1915 | 1864 | 1943 | 1878 |
| Tmin | 1864 | 1681 | 1862 | 1801 | 1860 | 1801 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 64 | 57 | 96 | 134 | 143 | 144 |
| Humidity/Visibility | 54 | 27 | 36 | 48 | 63 | 57 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 1939 | 1940 | 1880 | 1943 | 1881 | 1943 |
| Tmin | 1870 | 1864 | 1802 | 1862 | 1800 | 1863 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 147 | 136 | 94 | 98 | 94 | 98 |
| Humidity/Visibility | 64 | 69 | 81 | 79 | 79 | 88 |
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. |
