Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 681 | 616 | 705 | 683 | 709 | 676 |
Tmin | 677 | 615 | 703 | 685 | 707 | 686 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 624 | 561 | 657 | 632 | 651 | 630 |
Humidity/Visibility | 40 | 37 | 65 | 68 | 76 | 72 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 702 | 702 | 688 | 707 | 685 | 703 |
Tmin | 700 | 699 | 685 | 706 | 683 | 706 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 651 | 651 | 630 | 648 | 657 | 674 |
Humidity/Visibility | 65 | 61 | 66 | 64 | 61 | 60 |
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. |