Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 909 | 834 | 929 | 897 | 923 | 892 |
| Tmin | 908 | 838 | 925 | 895 | 928 | 896 |
| Sonnenscheindauer | 0 | 0 | 0 | 0 | 0 | 0 |
| Niederschlag | 191 | 171 | 187 | 183 | 185 | 180 |
| Feuchte/Sicht | 177 | 151 | 171 | 172 | 180 | 172 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 923 | 927 | 918 | 948 | 921 | 956 |
| Tmin | 921 | 925 | 918 | 947 | 923 | 956 |
| Sonnenscheindauer | 0 | 0 | 0 | 0 | 0 | 0 |
| Niederschlag | 188 | 197 | 216 | 219 | 212 | 220 |
| Feuchte/Sicht | 176 | 181 | 194 | 201 | 198 | 205 |
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. |
