Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 1962 | 1783 | 1965 | 1929 | 1987 | 1934 |
| Tmin | 1970 | 1789 | 1969 | 1929 | 1992 | 1934 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 157 | 141 | 157 | 172 | 186 | 180 |
| Humidity/Visibility | 149 | 137 | 144 | 163 | 172 | 169 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 1993 | 1995 | 1934 | 2004 | 1941 | 2003 |
| Tmin | 2003 | 2001 | 1944 | 2004 | 1948 | 2008 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 187 | 188 | 183 | 184 | 181 | 189 |
| Humidity/Visibility | 172 | 171 | 169 | 174 | 174 | 180 |
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. |
