Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 686 | 615 | 690 | 670 | 668 | 632 |
Tmin | 695 | 630 | 699 | 673 | 680 | 644 |
Duration of sunshine | 106 | 85 | 99 | 108 | 82 | 71 |
Precipitation | 712 | 644 | 715 | 691 | 691 | 659 |
Humidity/Visibility | -1418784042 | -352819635 | -1966021696 | 0 | 0 | 0 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 661 | 691 | 667 | 674 | 639 | 665 |
Tmin | 666 | 684 | 678 | 681 | 652 | 668 |
Duration of sunshine | 40 | 61 | 76 | 57 | 69 | 72 |
Precipitation | 682 | 714 | 690 | 699 | 659 | 682 |
Humidity/Visibility | 0 | 0 | -2133736624 | 0 | -1966249700 | 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. |