Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 1146 | 1036 | 1143 | 1108 | 1144 | 1108 |
| Tmin | 1172 | 1064 | 1169 | 1134 | 1164 | 1130 |
| Sonnenscheindauer | 340 | 305 | 369 | 324 | 399 | 414 |
| Niederschlag | 186 | 169 | 186 | 181 | 186 | 180 |
| Feuchte/Sicht | 168 | 152 | 166 | 162 | 166 | 161 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 1146 | 1147 | 1136 | 1172 | 1139 | 1178 |
| Tmin | 1162 | 1174 | 1159 | 1201 | 1165 | 1179 |
| Sonnenscheindauer | 337 | 401 | 388 | 394 | 357 | 365 |
| Niederschlag | 189 | 191 | 210 | 215 | 211 | 191 |
| Feuchte/Sicht | 166 | 168 | 188 | 193 | 191 | 186 |
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. |
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