Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 831 | 753 | 836 | 809 | 835 | 809 |
Tmin | 836 | 752 | 835 | 808 | 834 | 804 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 773 | 706 | 775 | 751 | 777 | 752 |
Humidity/Visibility | 178 | 161 | 182 | 175 | 176 | 169 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 831 | 836 | 833 | 857 | 834 | 865 |
Tmin | 835 | 838 | 831 | 855 | 836 | 863 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 777 | 778 | 781 | 804 | 780 | 806 |
Humidity/Visibility | 173 | 179 | 198 | 191 | 183 | 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. |