Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 147 | 0 | 2466787 | 0 | 200 | 0 |
| Tmin | 542863472 | 8 | 5419552 | 0 | 542863680 | 8 |
| Duration of sunshine | 542863600 | 8 | 677746878 | 8 | 1903169490 | 488682007 |
| Precipitation | 546883592 | 8 | 546884616 | 8 | 546885640 | 8 |
| Humidity/Visibility | 147 | 0 | 546866184 | 8 | 546867208 | 8 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 881008896 | 8 | 0 | 0 | 2412846 | 0 |
| Tmin | 677198126 | 8 | 0 | 0 | 542869313 | 8 |
| Duration of sunshine | 255 | 0 | 24 | 48 | 542864064 | 8 |
| Precipitation | 546886664 | 8 | 546887688 | 8 | 546888712 | 8 |
| Humidity/Visibility | 546868232 | 8 | 546881544 | 8 | 546882568 | 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. |
