Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 867 | 784 | 866 | 838 | 865 | 838 |
Tmin | 868 | 784 | 866 | 839 | 867 | 840 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 126 | 116 | 125 | 125 | 125 | 120 |
Humidity/Visibility | 122 | 110 | 120 | 117 | 119 | 118 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 865 | 866 | 837 | 864 | 833 | 867 |
Tmin | 865 | 865 | 837 | 861 | 838 | 867 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 127 | 124 | 123 | 122 | 120 | 124 |
Humidity/Visibility | 122 | 122 | 115 | 116 | 115 | 123 |
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. |