Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 2039 | 1838 | 2034 | 1973 | 2026 | 1974 |
| Tmin | 2037 | 1845 | 2038 | 1974 | 2027 | 1976 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 186 | 169 | 187 | 181 | 186 | 180 |
| Humidity/Visibility | 183 | 165 | 182 | 177 | 176 | 174 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 2036 | 2040 | 2002 | 2066 | 2007 | 2065 |
| Tmin | 2039 | 2044 | 2002 | 2066 | 2009 | 2069 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 187 | 190 | 210 | 215 | 210 | 213 |
| Humidity/Visibility | 176 | 179 | 199 | 205 | 205 | 208 |
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. |
