Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 1824 | 1653 | 1829 | 1779 | 1859 | 1800 |
| Tmin | 1823 | 1655 | 1828 | 1776 | 1857 | 1797 |
| Duration of sunshine | 248 | 254 | 217 | 270 | 310 | 270 |
| Precipitation | 0 | 0 | 0 | 0 | 0 | 0 |
| Humidity/Visibility | 52 | 47 | 50 | 60 | 81 | 78 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 1853 | 1850 | 1798 | 1861 | 1799 | 1860 |
| Tmin | 1853 | 1849 | 1798 | 1858 | 1799 | 1858 |
| Duration of sunshine | 279 | 248 | 270 | 279 | 210 | 248 |
| Precipitation | 0 | 0 | 0 | 0 | 0 | 0 |
| Humidity/Visibility | 72 | 67 | 72 | 73 | 101 | 71 |
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. |
