Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 131 | 113 | 126 | 119 | 120 | 127 |
Tmin | 98 | 88 | 88 | 101 | 117 | 105 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 198 | 181 | 215 | 209 | 207 | 219 |
Humidity/Visibility | 107 | 94 | 102 | 95 | 104 | 106 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 108 | 63 | 96 | 114 | 115 | 131 |
Tmin | 108 | 59 | 83 | 85 | 100 | 104 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 223 | 201 | 219 | 250 | 242 | 271 |
Humidity/Visibility | 102 | 66 | 95 | 117 | 107 | 121 |
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. |