Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 83 | 61 | 71 | 89 | 89 | 101 |
Tmin | 84 | 71 | 70 | 86 | 81 | 90 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 150 | 136 | 153 | 175 | 177 | 180 |
Humidity/Visibility | 62 | 58 | 67 | 80 | 80 | 81 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 92 | 92 | 88 | 76 | 79 | 75 |
Tmin | 92 | 88 | 92 | 88 | 95 | 85 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 184 | 197 | 184 | 179 | 154 | 170 |
Humidity/Visibility | 86 | 82 | 85 | 77 | 67 | 74 |
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. |