Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 835 | 754 | 829 | 803 | 832 | 809 |
Tmin | 832 | 752 | 831 | 805 | 834 | 807 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 746 | 674 | 744 | 723 | 744 | 722 |
Humidity/Visibility | 183 | 166 | 180 | 173 | 183 | 179 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 835 | 833 | 831 | 854 | 835 | 867 |
Tmin | 834 | 835 | 833 | 854 | 836 | 862 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 744 | 748 | 752 | 775 | 750 | 775 |
Humidity/Visibility | 183 | 181 | 202 | 204 | 206 | 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. |