Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 58 | 56 | 57 | 57 | 59 | 72 |
Tmin | 61 | 57 | 59 | 59 | 62 | 72 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 94 | 85 | 97 | 94 | 97 | 104 |
Humidity/Visibility | 44 | 41 | 44 | 43 | 45 | 52 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 83 | 90 | 84 | 85 | 78 | 84 |
Tmin | 86 | 90 | 82 | 84 | 80 | 86 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 128 | 128 | 128 | 122 | 124 | 128 |
Humidity/Visibility | 63 | 66 | 63 | 62 | 60 | 65 |
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. |