Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 2417 | 2183 | 2416 | 2353 | 2446 | 2367 |
Tmin | 2108 | 1905 | 2106 | 2051 | 2139 | 2070 |
Duration of sunshine | 60 | 55 | 59 | 71 | 89 | 88 |
Precipitation | 63 | 57 | 62 | 75 | 95 | 90 |
Humidity/Visibility | 61 | 56 | 61 | 74 | 91 | 87 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 2448 | 2442 | 2369 | 2443 | 2366 | 2447 |
Tmin | 2133 | 2134 | 2067 | 2133 | 2069 | 2138 |
Duration of sunshine | 85 | 89 | 86 | 84 | 84 | 91 |
Precipitation | 96 | 94 | 90 | 90 | 90 | 96 |
Humidity/Visibility | 89 | 90 | 88 | 86 | 87 | 91 |
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. |