Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 742 | 671 | 766 | 750 | 771 | 722 |
Tmin | 743 | 672 | 744 | 720 | 744 | 719 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 93 | 85 | 118 | 121 | 124 | 92 |
Humidity/Visibility | 92 | 83 | 102 | 104 | 106 | 90 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 739 | 741 | 717 | 765 | 749 | 772 |
Tmin | 744 | 742 | 718 | 766 | 749 | 773 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 93 | 95 | 90 | 118 | 121 | 124 |
Humidity/Visibility | 91 | 90 | 88 | 110 | 117 | 123 |
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. |