Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 756 | 682 | 761 | 738 | 770 | 740 |
Tmin | 757 | 691 | 750 | 743 | 770 | 744 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 157 | 141 | 157 | 151 | 158 | 150 |
Humidity/Visibility | 133 | 124 | 131 | 132 | 138 | 137 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 763 | 789 | 775 | 789 | 769 | 755 |
Tmin | 759 | 776 | 784 | 799 | 787 | 763 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 160 | 190 | 210 | 216 | 199 | 168 |
Humidity/Visibility | 139 | 157 | 174 | 176 | 168 | 138 |
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. |