Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 574 | 511 | 576 | 549 | 576 | 576 |
Tmin | 582 | 522 | 566 | 549 | 576 | 587 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 561 | 512 | 571 | 559 | 586 | 578 |
Humidity/Visibility | 82 | 78 | 82 | 73 | 84 | 107 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 592 | 577 | 560 | 597 | 572 | 595 |
Tmin | 602 | 583 | 564 | 587 | 573 | 601 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 604 | 613 | 594 | 595 | 582 | 600 |
Humidity/Visibility | 108 | 94 | 96 | 100 | 100 | 108 |
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. |