Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 755 | 701 | 775 | 765 | 806 | 779 |
Tmin | 757 | 702 | 775 | 764 | 806 | 778 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 93 | 85 | 95 | 109 | 124 | 120 |
Humidity/Visibility | 92 | 84 | 92 | 104 | 123 | 119 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 803 | 804 | 761 | 795 | 779 | 801 |
Tmin | 805 | 806 | 761 | 796 | 778 | 806 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 126 | 127 | 120 | 122 | 120 | 124 |
Humidity/Visibility | 122 | 122 | 118 | 117 | 118 | 124 |
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. |