Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1061 | 1002 | 1103 | 1101 | 1134 | 1105 |
Tmin | 1064 | 1002 | 1105 | 1093 | 1129 | 1098 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 125 | 119 | 126 | 145 | 156 | 156 |
Humidity/Visibility | 121 | 108 | 121 | 140 | 149 | 144 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1138 | 1142 | 1093 | 1136 | 1106 | 1142 |
Tmin | 1139 | 1140 | 1084 | 1134 | 1103 | 1135 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 158 | 158 | 152 | 152 | 152 | 158 |
Humidity/Visibility | 150 | 150 | 146 | 148 | 145 | 152 |
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. |