Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 700 | 634 | 737 | 731 | 740 | 716 |
Tmin | 677 | 611 | 695 | 683 | 703 | 680 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 589 | 532 | 589 | 570 | 589 | 570 |
Humidity/Visibility | 0 | 0 | 0 | 0 | 0 | 0 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 731 | 742 | 711 | 747 | 738 | 712 |
Tmin | 699 | 699 | 685 | 715 | 716 | 711 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 589 | 589 | 570 | 589 | 570 | 0 |
Humidity/Visibility | 0 | 0 | 0 | 0 | 0 | 0 |
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. |