Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1873 | 1696 | 1875 | 1815 | 1860 | 1814 |
Tmin | 1881 | 1697 | 1884 | 1820 | 1867 | 1817 |
Duration of sunshine | 93 | 86 | 93 | 90 | 124 | 150 |
Precipitation | 186 | 169 | 187 | 181 | 186 | 180 |
Humidity/Visibility | 183 | 162 | 181 | 175 | 178 | 173 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1874 | 1873 | 1845 | 1906 | 1845 | 1912 |
Tmin | 1883 | 1875 | 1850 | 1914 | 1857 | 1915 |
Duration of sunshine | 155 | 124 | 120 | 124 | 90 | 93 |
Precipitation | 187 | 190 | 210 | 215 | 210 | 217 |
Humidity/Visibility | 174 | 176 | 197 | 206 | 203 | 215 |
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. |