Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 55 | 54 | 56 | 62 | 76 | 71 |
Tmin | 68 | 54 | 69 | 69 | 76 | 85 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 116 | 101 | 114 | 118 | 131 | 128 |
Humidity/Visibility | 56 | 51 | 63 | 60 | 72 | 76 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 86 | 74 | 73 | 93 | 79 | 78 |
Tmin | 87 | 90 | 89 | 102 | 91 | 93 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 150 | 140 | 127 | 130 | 138 | 156 |
Humidity/Visibility | 87 | 82 | 82 | 92 | 79 | 89 |
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. |