Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 652 | 628 | 696 | 678 | 702 | 667 |
Tmin | 663 | 637 | 704 | 682 | 700 | 680 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 99 | 91 | 111 | 105 | 105 | 94 |
Humidity/Visibility | 84 | 79 | 79 | 68 | 65 | 78 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 695 | 695 | 680 | 706 | 680 | 701 |
Tmin | 698 | 689 | 680 | 699 | 680 | 700 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 98 | 115 | 121 | 142 | 136 | 158 |
Humidity/Visibility | 54 | 48 | 77 | 107 | 103 | 110 |
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. |