Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 132 | 121 | 128 | 124 | 138 | 128 |
Tmin | 107 | 94 | 90 | 103 | 118 | 106 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 192 | 186 | 212 | 205 | 226 | 224 |
Humidity/Visibility | 111 | 99 | 104 | 101 | 111 | 106 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 108 | 75 | 92 | 81 | 77 | 88 |
Tmin | 112 | 62 | 85 | 63 | 65 | 60 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 225 | 203 | 228 | 247 | 244 | 264 |
Humidity/Visibility | 102 | 76 | 106 | 119 | 112 | 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. |