Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 250 | 231 | 276 | 244 | 238 | 231 |
| Tmin | 242 | 231 | 273 | 237 | 242 | 235 |
| Sonnenscheindauer | 37 | 44 | 54 | 38 | 37 | 35 |
| Niederschlag | 148 | 130 | 158 | 178 | 163 | 156 |
| Feuchte/Sicht | 79 | 75 | 93 | 97 | 102 | 111 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 235 | 226 | 222 | 238 | 235 | 238 |
| Tmin | 242 | 230 | 224 | 237 | 227 | 242 |
| Sonnenscheindauer | 29 | 26 | 28 | 36 | 24 | 22 |
| Niederschlag | 161 | 167 | 165 | 161 | 168 | 171 |
| Feuchte/Sicht | 112 | 103 | 102 | 107 | 106 | 118 |
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. |
