Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 652 | 588 | 651 | 638 | 682 | 660 |
Tmin | 652 | 588 | 651 | 637 | 680 | 657 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 620 | 560 | 620 | 600 | 620 | 600 |
Humidity/Visibility | 0 | 0 | 0 | 0 | 0 | 0 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 682 | 682 | 660 | 694 | 687 | 710 |
Tmin | 678 | 677 | 657 | 692 | 681 | 701 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 620 | 620 | 600 | 620 | 600 | 620 |
Humidity/Visibility | 0 | 0 | 0 | 0 | 0 | 0 |
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. |