Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 1999 | 1809 | 2004 | 1946 | 1986 | 1945 |
| Tmin | 2033 | 1842 | 2036 | 1971 | 2024 | 1973 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 155 | 141 | 157 | 152 | 159 | 154 |
| Humidity/Visibility | 151 | 136 | 151 | 146 | 137 | 144 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 2002 | 2001 | 1940 | 2035 | 1972 | 2031 |
| Tmin | 2044 | 2034 | 1966 | 2067 | 2003 | 2072 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 157 | 157 | 156 | 185 | 182 | 188 |
| Humidity/Visibility | 151 | 145 | 145 | 177 | 175 | 182 |
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. |
