Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 821 | 756 | 830 | 806 | 865 | 831 |
Tmin | 824 | 754 | 831 | 809 | 865 | 837 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 66 | 62 | 82 | 81 | 123 | 114 |
Humidity/Visibility | 58 | 53 | 49 | 41 | 58 | 75 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 859 | 840 | 825 | 859 | 827 | 859 |
Tmin | 861 | 842 | 825 | 855 | 832 | 859 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 101 | 113 | 104 | 101 | 136 | 117 |
Humidity/Visibility | 55 | 47 | 74 | 83 | 80 | 83 |
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. |