Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 712 | 644 | 710 | 686 | 708 | 683 |
Tmin | 712 | 640 | 710 | 690 | 711 | 690 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 715 | 645 | 713 | 691 | 713 | 690 |
Humidity/Visibility | 44 | 40 | 49 | 48 | 46 | 47 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 707 | 702 | 690 | 723 | 720 | 744 |
Tmin | 704 | 700 | 687 | 721 | 719 | 739 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 713 | 716 | 690 | 725 | 723 | 744 |
Humidity/Visibility | 39 | 37 | 43 | 51 | 72 | 65 |
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. |