Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 836 | 756 | 835 | 810 | 835 | 810 |
| Tmin | 837 | 757 | 837 | 810 | 837 | 810 |
| Sonnenscheindauer | 178 | 155 | 173 | 143 | 139 | 138 |
| Niederschlag | 186 | 169 | 187 | 181 | 186 | 180 |
| Feuchte/Sicht | 185 | 167 | 184 | 178 | 184 | 179 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 830 | 837 | 838 | 865 | 839 | 866 |
| Tmin | 837 | 838 | 839 | 865 | 838 | 867 |
| Sonnenscheindauer | 149 | 160 | 199 | 200 | 198 | 210 |
| Niederschlag | 186 | 190 | 210 | 215 | 210 | 217 |
| Feuchte/Sicht | 183 | 184 | 206 | 209 | 206 | 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. |
