Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 972 | 899 | 992 | 960 | 982 | 951 |
Tmin | 972 | 899 | 992 | 960 | 981 | 951 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 621 | 561 | 624 | 620 | 651 | 630 |
Humidity/Visibility | 92 | 84 | 90 | 102 | 122 | 119 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 992 | 991 | 960 | 993 | 954 | 987 |
Tmin | 992 | 991 | 959 | 992 | 954 | 986 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 653 | 654 | 632 | 648 | 630 | 652 |
Humidity/Visibility | 122 | 121 | 116 | 116 | 117 | 123 |
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. |