Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1029 | 958 | 1056 | 1034 | 1061 | 1032 |
Tmin | 1028 | 956 | 1059 | 1028 | 1062 | 1030 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 93 | 85 | 94 | 108 | 126 | 120 |
Humidity/Visibility | 92 | 84 | 92 | 104 | 122 | 119 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1066 | 1062 | 1012 | 1080 | 1059 | 1080 |
Tmin | 1068 | 1061 | 1012 | 1089 | 1059 | 1086 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 127 | 127 | 120 | 122 | 120 | 124 |
Humidity/Visibility | 122 | 122 | 118 | 117 | 118 | 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. |