Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 147 | 0 | 2466787 | 0 | 200 | 0 |
| Tmin | 542361024 | 8 | 5419552 | 0 | 542361232 | 8 |
| Duration of sunshine | 542361152 | 8 | 707057854 | 8 | -1350633416 | 1829460685 |
| Precipitation | 549185544 | 8 | 549186568 | 8 | 549187592 | 8 |
| Humidity/Visibility | 147 | 0 | 549168136 | 8 | 549169160 | 8 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 903409920 | 8 | 0 | 0 | 2412846 | 0 |
| Tmin | 706509102 | 8 | 0 | 0 | 542366873 | 8 |
| Duration of sunshine | 255 | 0 | 24 | 48 | 542361616 | 8 |
| Precipitation | 549188616 | 8 | 549189640 | 8 | 549190664 | 8 |
| Humidity/Visibility | 549170184 | 8 | 549183496 | 8 | 549184520 | 8 |
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. |
