Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 147 | 0 | 2466787 | 0 | 200 | 0 |
| Tmin | 551638896 | 8 | 5419552 | 0 | 551639104 | 8 |
| Duration of sunshine | 551639024 | 8 | 735779006 | 8 | -1635406829 | -1297686017 |
| Precipitation | 558573576 | 8 | 558574600 | 8 | 558575624 | 8 |
| Humidity/Visibility | 147 | 0 | 558556168 | 8 | 558557192 | 8 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 949820672 | 8 | 0 | 0 | 2412846 | 0 |
| Tmin | 735230254 | 8 | 0 | 0 | 551644745 | 8 |
| Duration of sunshine | 255 | 0 | 24 | 48 | 551639488 | 8 |
| Precipitation | 558576648 | 8 | 558577672 | 8 | 558578696 | 8 |
| Humidity/Visibility | 558558216 | 8 | 558571528 | 8 | 558572552 | 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. |
