Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 147 | 138 | 154 | 149 | 153 | 149 |
| Tmin | 146 | 140 | 155 | 148 | 154 | 150 |
| Sonnenscheindauer | 179 | 167 | 216 | 209 | 214 | 209 |
| Niederschlag | 155 | 140 | 155 | 151 | 155 | 150 |
| Feuchte/Sicht | 148 | 139 | 154 | 149 | 153 | 149 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 150 | 153 | 150 | 146 | 147 | 154 |
| Tmin | 150 | 152 | 149 | 148 | 146 | 152 |
| Sonnenscheindauer | 207 | 215 | 206 | 206 | 207 | 216 |
| Niederschlag | 154 | 157 | 150 | 153 | 152 | 157 |
| Feuchte/Sicht | 150 | 152 | 148 | 148 | 147 | 153 |
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. |
