Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 55 | 45 | 44 | 72 | 81 | 77 |
| Tmin | 55 | 50 | 46 | 71 | 86 | 77 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 61 | 54 | 53 | 83 | 92 | 86 |
| Humidity/Visibility | -608159736 | 6744 | -608158712 | 6744 | -608141304 | 6744 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 68 | 55 | 51 | 51 | 44 | 54 |
| Tmin | 70 | 49 | 52 | 48 | 42 | 59 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 84 | 63 | 58 | 58 | 56 | 61 |
| Humidity/Visibility | -608140280 | 6744 | -608139256 | 6744 | -608138232 | 6744 |
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. |
