Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 704 | 638 | 707 | 684 | 705 | 683 |
Tmin | 700 | 636 | 705 | 681 | 709 | 683 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 681 | 616 | 682 | 661 | 682 | 659 |
Humidity/Visibility | 148 | 136 | 150 | 144 | 148 | 145 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 703 | 709 | 683 | 701 | 678 | 709 |
Tmin | 700 | 706 | 681 | 701 | 683 | 707 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 681 | 683 | 661 | 679 | 660 | 681 |
Humidity/Visibility | 147 | 149 | 145 | 145 | 139 | 149 |
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. |