Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 80 | 38 | 49 | 25 | 8 | 0 |
| Tmin | 85 | 55 | 53 | 57 | 36 | 28 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 123 | 107 | 123 | 122 | 101 | 90 |
| Humidity/Visibility | 147 | 0 | 3668992 | 8 | 3670016 | 8 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 0 | 0 | 0 | 3 | 29 | 27 |
| Tmin | 24 | 18 | 29 | 23 | 23 | 28 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 91 | 122 | 119 | 109 | 90 | 97 |
| Humidity/Visibility | 3671040 | 8 | 3672064 | 8 | 3673088 | 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. |
