Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 183 | 166 | 183 | 178 | 184 | 179 |
| Tmin | 182 | 167 | 184 | 179 | 185 | 179 |
| Sonnenscheindauer | 285 | 322 | 372 | 360 | 377 | 368 |
| Niederschlag | 186 | 169 | 187 | 181 | 186 | 180 |
| Feuchte/Sicht | 183 | 166 | 183 | 178 | 184 | 179 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 181 | 187 | 207 | 213 | 209 | 211 |
| Tmin | 182 | 183 | 208 | 214 | 208 | 214 |
| Sonnenscheindauer | 376 | 383 | 368 | 374 | 361 | 372 |
| Niederschlag | 188 | 190 | 210 | 215 | 210 | 219 |
| Feuchte/Sicht | 183 | 184 | 206 | 210 | 207 | 214 |
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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