Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 651 | 588 | 652 | 630 | 651 | 633 |
Tmin | 712 | 644 | 710 | 702 | 716 | 689 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 559 | 506 | 558 | 555 | 587 | 569 |
Humidity/Visibility | 37 | 34 | 37 | 42 | 49 | 49 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 651 | 651 | 630 | 651 | 630 | 651 |
Tmin | 710 | 705 | 684 | 708 | 689 | 710 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 591 | 590 | 570 | 585 | 570 | 590 |
Humidity/Visibility | 55 | 50 | 46 | 46 | 44 | 53 |
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. |