Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1624 | 1465 | 1616 | 1557 | 1617 | 1563 |
Tmin | 947 | 859 | 944 | 932 | 959 | 920 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 121 | 117 | 122 | 119 | 115 | 122 |
Humidity/Visibility | 51 | 45 | 46 | 46 | 50 | 49 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1635 | 1641 | 1583 | 1629 | 1568 | 1617 |
Tmin | 946 | 969 | 946 | 985 | 935 | 961 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 167 | 152 | 150 | 153 | 152 | 150 |
Humidity/Visibility | 58 | 68 | 66 | 67 | 57 | 52 |
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. |