Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 695 | 635 | 703 | 699 | 736 | 714 |
Tmin | 704 | 636 | 705 | 701 | 732 | 709 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 724 | 655 | 718 | 722 | 753 | 724 |
Humidity/Visibility | 114 | 106 | 119 | 135 | 146 | 145 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 737 | 736 | 716 | 731 | 713 | 738 |
Tmin | 735 | 738 | 713 | 723 | 704 | 729 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 745 | 750 | 724 | 747 | 734 | 165 |
Humidity/Visibility | 149 | 148 | 145 | 144 | 141 | 149 |
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. |