Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 794 | 713 | 799 | 773 | 799 | 773 |
Tmin | 779 | 712 | 766 | 756 | 797 | 767 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 190 | 169 | 189 | 187 | 200 | 180 |
Humidity/Visibility | 129 | 119 | 132 | 127 | 139 | 139 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 799 | 799 | 790 | 822 | 799 | 820 |
Tmin | 794 | 802 | 781 | 818 | 794 | 812 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 190 | 200 | 215 | 214 | 225 |
Humidity/Visibility | 145 | 145 | 153 | 161 | 155 | 153 |
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. |