Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 2019 | 1801 | 2005 | 1941 | 2002 | 1926 |
| Tmin | 2016 | 1805 | 2008 | 1930 | 1995 | 1923 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 178 | 156 | 182 | 181 | 177 | 159 |
| Humidity/Visibility | 125 | 112 | 132 | 129 | 126 | 111 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 2010 | 2028 | 1966 | 2022 | 1966 | 2035 |
| Tmin | 2008 | 2010 | 1947 | 2013 | 1961 | 2030 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 171 | 202 | 206 | 217 | 220 | 231 |
| Humidity/Visibility | 125 | 157 | 152 | 148 | 148 | 157 |
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. |
