Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 759 | 687 | 760 | 742 | 762 | 746 |
Tmin | 763 | 683 | 768 | 738 | 765 | 738 |
Duration of sunshine | 93 | 84 | 93 | 90 | 93 | 90 |
Precipitation | 784 | 707 | 787 | 758 | 785 | 755 |
Humidity/Visibility | 176 | 159 | 179 | 172 | 176 | 175 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 764 | 771 | 773 | 793 | 761 | 794 |
Tmin | 762 | 765 | 768 | 786 | 769 | 791 |
Duration of sunshine | 93 | 124 | 90 | 124 | 120 | 93 |
Precipitation | 776 | 782 | 786 | 809 | 791 | 227 |
Humidity/Visibility | 178 | 181 | 202 | 206 | 200 | 209 |
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. |