Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 673 | 609 | 684 | 665 | 728 | 712 |
Tmin | 679 | 611 | 688 | 661 | 728 | 710 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 124 | 116 | 128 | 152 | 155 | 155 |
Humidity/Visibility | 88 | 78 | 97 | 94 | 141 | 142 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 738 | 730 | 686 | 698 | 676 | 695 |
Tmin | 737 | 733 | 685 | 702 | 678 | 694 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 159 | 157 | 150 | 151 | 152 | 151 |
Humidity/Visibility | 148 | 144 | 115 | 114 | 108 | 107 |
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. |