Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 833 | 751 | 835 | 809 | 830 | 810 |
Tmin | 836 | 754 | 835 | 807 | 835 | 804 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 168 | 186 | 181 | 186 | 180 |
Humidity/Visibility | 184 | 166 | 184 | 179 | 183 | 178 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 830 | 835 | 836 | 856 | 821 | 836 |
Tmin | 834 | 837 | 837 | 859 | 818 | 837 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 188 | 190 | 210 | 219 | 209 | 219 |
Humidity/Visibility | 183 | 184 | 206 | 208 | 192 | 211 |
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. |