Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 104 | 89 | 96 | 102 | 96 | 69 |
Tmin | 113 | 100 | 113 | 108 | 108 | 84 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 156 | 141 | 155 | 149 | 154 | 145 |
Humidity/Visibility | 111 | 98 | 113 | 105 | 111 | 107 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 73 | 54 | 48 | 45 | 55 | 56 |
Tmin | 81 | 58 | 59 | 49 | 53 | 60 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 153 | 190 | 176 | 169 | 132 | 127 |
Humidity/Visibility | 108 | 105 | 107 | 93 | 76 | 84 |
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. |