Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 129 | 124 | 126 | 117 | 128 | 121 |
Tmin | 96 | 90 | 94 | 106 | 118 | 106 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 196 | 196 | 207 | 203 | 218 | 222 |
Humidity/Visibility | 111 | 101 | 101 | 97 | 106 | 102 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 109 | 70 | 108 | 116 | 124 | 132 |
Tmin | 113 | 60 | 90 | 96 | 102 | 99 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 232 | 204 | 233 | 240 | 240 | 274 |
Humidity/Visibility | 101 | 68 | 99 | 118 | 114 | 124 |
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. |