Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 583 | 524 | 577 | 561 | 584 | 564 |
Tmin | 572 | 512 | 557 | 543 | 569 | 546 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 607 | 551 | 598 | 601 | 628 | 590 |
Humidity/Visibility | 60 | 52 | 56 | 57 | 62 | 57 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 595 | 598 | 588 | 596 | 578 | 607 |
Tmin | 578 | 563 | 545 | 589 | 570 | 577 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 639 | 643 | 613 | 627 | 596 | 261 |
Humidity/Visibility | 72 | 64 | 66 | 78 | 74 | 79 |
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. |