Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 1146 | 1055 | 1180 | 1147 | 1170 | 1130 |
| Tmin | 1161 | 1069 | 1184 | 1155 | 1178 | 1147 |
| Sonnenscheindauer | 162 | 139 | 160 | 162 | 170 | 154 |
| Niederschlag | 193 | 181 | 209 | 201 | 194 | 190 |
| Feuchte/Sicht | 167 | 152 | 162 | 154 | 152 | 141 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 1177 | 1167 | 1162 | 1191 | 1132 | 1182 |
| Tmin | 1171 | 1168 | 1170 | 1192 | 1132 | 1189 |
| Sonnenscheindauer | 146 | 143 | 178 | 163 | 139 | 158 |
| Niederschlag | 174 | 196 | 216 | 229 | 189 | 199 |
| Feuchte/Sicht | 143 | 123 | 156 | 178 | 163 | 174 |
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. |
