Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 788 | 715 | 799 | 775 | 804 | 778 |
Tmin | 757 | 683 | 763 | 739 | 753 | 723 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 810 | 730 | 806 | 781 | 806 | 780 |
Humidity/Visibility | 99 | 88 | 106 | 105 | 110 | 109 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 800 | 820 | 811 | 828 | 792 | 792 |
Tmin | 742 | 764 | 757 | 769 | 759 | 754 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 811 | 838 | 839 | 857 | 826 | 159 |
Humidity/Visibility | 110 | 121 | 137 | 127 | 116 | 102 |
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. |