Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 179 | 159 | 154 | 153 | 149 | 163 |
| Tmin | 138 | 152 | 146 | 145 | 134 | 151 |
| Sonnenscheindauer | 326 | 274 | 311 | 263 | 224 | 216 |
| Niederschlag | 187 | 166 | 171 | 172 | 174 | 176 |
| Feuchte/Sicht | 151 | 132 | 132 | 126 | 129 | 137 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 157 | 172 | 201 | 185 | 180 | 184 |
| Tmin | 143 | 156 | 182 | 171 | 151 | 170 |
| Sonnenscheindauer | 229 | 355 | 305 | 324 | 331 | 328 |
| Niederschlag | 183 | 182 | 211 | 203 | 195 | 204 |
| Feuchte/Sicht | 130 | 139 | 165 | 156 | 146 | 160 |
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. |
