Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1067 | 971 | 1059 | 1038 | 1072 | 1042 |
Tmin | 1067 | 967 | 1070 | 1034 | 1071 | 1049 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 106 | 97 | 114 | 112 | 103 | 111 |
Humidity/Visibility | 81 | 74 | 76 | 81 | 83 | 92 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1093 | 1101 | 1067 | 1093 | 1061 | 1092 |
Tmin | 1099 | 1106 | 1072 | 1096 | 1060 | 1103 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 132 | 136 | 125 | 131 | 136 | 139 |
Humidity/Visibility | 106 | 111 | 108 | 100 | 94 | 107 |
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. |