Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 147 | 0 | 2466787 | 0 | 200 | 0 |
| Tmin | 555182304 | 8 | 5419552 | 0 | 555182512 | 8 |
| Duration of sunshine | 555182432 | 8 | 725379262 | 8 | -681844772 | 1439929989 |
| Precipitation | 566945800 | 8 | 566946824 | 8 | 566947848 | 8 |
| Humidity/Visibility | 147 | 0 | 566928392 | 8 | 566929416 | 8 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 888487552 | 8 | 0 | 0 | 2412846 | 0 |
| Tmin | 724830510 | 8 | 0 | 0 | 555188153 | 8 |
| Duration of sunshine | 255 | 0 | 24 | 48 | 555182896 | 8 |
| Precipitation | 566948872 | 8 | 566949896 | 8 | 566950920 | 8 |
| Humidity/Visibility | 566930440 | 8 | 566943752 | 8 | 566944776 | 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. |
