Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 597 | 536 | 591 | 583 | 586 | 566 |
Tmin | 593 | 535 | 592 | 582 | 587 | 567 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 586 | 526 | 579 | 570 | 589 | 595 |
Humidity/Visibility | 53 | 49 | 53 | 59 | 56 | 66 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 596 | 608 | 583 | 605 | 588 | 603 |
Tmin | 595 | 608 | 580 | 605 | 586 | 606 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 607 | 591 | 580 | 580 | 586 | 601 |
Humidity/Visibility | 71 | 77 | 75 | 68 | 66 | 66 |
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. |