Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 0 | 1024 | 1048576 | 1048576 | 1074791425 | 1074791425 |
| Tmin | 842018877 | 1297557041 | 947469647 | 3420728 | 1431389522 | 1599361861 |
| Sonnenscheindauer | 1 | 0 | -2140337032 | 0 | 11989053 | 0 |
| Niederschlag | 0 | 0 | 0 | 0 | 0 | 0 |
| Feuchte/Sicht | -485863494 | -2057760179 | -1979526144 | 0 | 0 | 0 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 1074791425 | 1074791425 | 0 | 269485056 | 0 | 269485056 |
| Tmin | 1028215381 | 1768383279 | 0 | 0 | 0 | 0 |
| Sonnenscheindauer | 255 | 0 | 0 | -268435456 | 0 | 0 |
| Niederschlag | 0 | 0 | 0 | 0 | 0 | 0 |
| Feuchte/Sicht | 0 | 0 | -2140338224 | 0 | -1979754212 | 0 |
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. |
