Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 773 | 688 | 790 | 769 | 802 | 776 |
Tmin | 771 | 693 | 786 | 766 | 790 | 772 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 589 | 532 | 589 | 570 | 589 | 570 |
Humidity/Visibility | 0 | 0 | 0 | 0 | 0 | 0 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 796 | 794 | 768 | 797 | 771 | 776 |
Tmin | 793 | 783 | 754 | 786 | 764 | 774 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 589 | 589 | 570 | 589 | 570 | 589 |
Humidity/Visibility | 0 | 0 | 0 | 0 | 0 | 0 |
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. |