Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 670 | 611 | 668 | 652 | 648 | 620 |
| Tmin | 704 | 629 | 699 | 671 | 669 | 643 |
| Duration of sunshine | 155 | 169 | 186 | 120 | 186 | 180 |
| Precipitation | 155 | 142 | 154 | 156 | 131 | 119 |
| Humidity/Visibility | 1730164744 | 9134 | 1730165768 | 9134 | 1730183176 | 9134 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 639 | 626 | 622 | 635 | 622 | 645 |
| Tmin | 660 | 654 | 648 | 668 | 648 | 651 |
| Duration of sunshine | 93 | 248 | 210 | 217 | 270 | 248 |
| Precipitation | 125 | 126 | 120 | 120 | 120 | 98 |
| Humidity/Visibility | 1730184200 | 9134 | 1730185224 | 9134 | 1730186248 | 9134 |
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. |
