Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 794 | 712 | 791 | 767 | 788 | 762 |
Tmin | 761 | 690 | 769 | 744 | 756 | 743 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 190 | 173 | 193 | 182 | 203 | 180 |
Humidity/Visibility | 157 | 144 | 162 | 152 | 153 | 157 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 787 | 792 | 798 | 824 | 790 | 795 |
Tmin | 767 | 761 | 772 | 799 | 763 | 798 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 191 | 189 | 210 | 215 | 217 | 199 |
Humidity/Visibility | 159 | 162 | 187 | 188 | 181 | 182 |
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. |