Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 868 | 782 | 880 | 867 | 892 | 882 |
| Tmin | 864 | 797 | 887 | 886 | 891 | 878 |
| Sonnenscheindauer | 176 | 183 | 236 | 217 | 190 | 214 |
| Niederschlag | 117 | 104 | 134 | 141 | 152 | 139 |
| Feuchte/Sicht | 83 | 72 | 85 | 98 | 104 | 101 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 910 | 907 | 876 | 907 | 876 | 892 |
| Tmin | 912 | 911 | 878 | 918 | 881 | 907 |
| Sonnenscheindauer | 149 | 224 | 300 | 186 | 275 | 226 |
| Niederschlag | 144 | 143 | 134 | 138 | 134 | 138 |
| Feuchte/Sicht | 102 | 105 | 100 | 97 | 98 | 107 |
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. |
