Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Tmax | 2029 | 1842 | 2035 | 1994 | 2040 | 1995 |
| Tmin | 2034 | 1839 | 2038 | 1992 | 2048 | 1999 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 155 | 141 | 159 | 176 | 190 | 185 |
| Humidity/Visibility | 149 | 135 | 150 | 165 | 167 | 170 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Tmax | 2065 | 2066 | 2001 | 2064 | 1997 | 2064 |
| Tmin | 2073 | 2065 | 2006 | 2068 | 1997 | 2063 |
| Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitation | 188 | 187 | 182 | 185 | 183 | 190 |
| Humidity/Visibility | 180 | 176 | 175 | 176 | 173 | 181 |
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. |
