Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1085 | 1035 | 1143 | 1133 | 1158 | 1131 |
Tmin | 1086 | 1034 | 1141 | 1132 | 1152 | 1129 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 130 | 113 | 126 | 146 | 157 | 153 |
Humidity/Visibility | 117 | 109 | 119 | 141 | 153 | 141 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1160 | 1169 | 1120 | 1135 | 1103 | 1117 |
Tmin | 1159 | 1167 | 1118 | 1136 | 1100 | 1115 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 162 | 160 | 151 | 155 | 149 | 157 |
Humidity/Visibility | 150 | 151 | 141 | 116 | 112 | 93 |
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. |