Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 602 | 553 | 617 | 596 | 601 | 600 |
Tmin | 603 | 558 | 618 | 598 | 603 | 599 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 116 | 122 | 136 | 136 | 160 | 154 |
Humidity/Visibility | 162 | 141 | 165 | 159 | 160 | 155 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 609 | 610 | 626 | 644 | 627 | 647 |
Tmin | 613 | 611 | 627 | 645 | 628 | 648 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 158 | 163 | 190 | 162 | 190 | 163 |
Humidity/Visibility | 148 | 147 | 173 | 186 | 183 | 188 |
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. |