Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 89 | 82 | 93 | 100 | 118 | 112 |
| Tmin | 90 | 82 | 93 | 101 | 116 | 107 |
| Sonnenscheindauer | 0 | 0 | 0 | 0 | 0 | 0 |
| Niederschlag | 94 | 85 | 95 | 111 | 130 | 119 |
| Feuchte/Sicht | 91 | 84 | 92 | 102 | 118 | 116 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 113 | 106 | 114 | 117 | 115 | 117 |
| Tmin | 87 | 77 | 87 | 87 | 86 | 92 |
| Sonnenscheindauer | 0 | 0 | 0 | 0 | 0 | 0 |
| Niederschlag | 126 | 125 | 122 | 121 | 121 | 124 |
| Feuchte/Sicht | 117 | 109 | 116 | 117 | 117 | 123 |
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. |
