Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 147 | 0 | 2466787 | 0 | 200 | 0 |
| Tmin | 547564592 | 8 | 5419552 | 0 | 547564800 | 8 |
| Duration of sunshine | 547564720 | 8 | 697551038 | 8 | 1552069290 | -73508010 |
| Precipitation | 562739208 | 8 | 562740232 | 8 | 562741256 | 8 |
| Humidity/Visibility | 147 | 0 | 562721800 | 8 | 562722824 | 8 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 888057024 | 8 | 0 | 0 | 2412846 | 0 |
| Tmin | 697002286 | 8 | 0 | 0 | 547570441 | 8 |
| Duration of sunshine | 255 | 0 | 24 | 48 | 547565184 | 8 |
| Precipitation | 562742280 | 8 | 562743304 | 8 | 562744328 | 8 |
| Humidity/Visibility | 562723848 | 8 | 562737160 | 8 | 562738184 | 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. |
