Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 403 | 379 | 402 | 404 | 449 | 441 |
| Tmin | 412 | 381 | 406 | 407 | 451 | 442 |
| Sonnenscheindauer | 73 | 77 | 65 | 76 | 105 | 106 |
| Niederschlag | 156 | 130 | 125 | 163 | 169 | 155 |
| Feuchte/Sicht | 78 | 82 | 80 | 85 | 121 | 123 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 438 | 443 | 426 | 443 | 414 | 420 |
| Tmin | 452 | 443 | 428 | 448 | 412 | 430 |
| Sonnenscheindauer | 133 | 119 | 121 | 130 | 113 | 117 |
| Niederschlag | 159 | 162 | 166 | 170 | 172 | 180 |
| Feuchte/Sicht | 118 | 112 | 107 | 113 | 91 | 96 |
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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