Number of days available for climatic review
| Parameter | Jan | Feb | Mär | Apr | Mai | Jun |
| Tmax | 873 | 836 | 929 | 909 | 918 | 919 |
| Tmin | 873 | 835 | 923 | 910 | 923 | 917 |
| Sonnenscheindauer | 155 | 113 | 124 | 150 | 186 | 180 |
| Niederschlag | 97 | 93 | 100 | 113 | 123 | 123 |
| Feuchte/Sicht | 77 | 76 | 90 | 100 | 102 | 111 |
| Parameter | Jul | Aug | Sep | Okt | Nov | Dez |
| Tmax | 936 | 925 | 893 | 947 | 920 | 953 |
| Tmin | 934 | 924 | 895 | 949 | 916 | 960 |
| Sonnenscheindauer | 186 | 186 | 150 | 186 | 120 | 155 |
| Niederschlag | 132 | 120 | 111 | 119 | 124 | 128 |
| Feuchte/Sicht | 101 | 90 | 83 | 113 | 108 | 122 |
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. |
