Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1164 | 1059 | 1167 | 1160 | 1199 | 1165 |
Tmin | 1163 | 1062 | 1168 | 1159 | 1198 | 1162 |
Duration of sunshine | 248 | 197 | 248 | 240 | 310 | 270 |
Precipitation | 629 | 569 | 632 | 640 | 655 | 635 |
Humidity/Visibility | 86 | 79 | 87 | 113 | 117 | 114 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1191 | 1196 | 1159 | 1194 | 1161 | 1195 |
Tmin | 1195 | 1194 | 1157 | 1196 | 1155 | 1201 |
Duration of sunshine | 217 | 279 | 270 | 310 | 180 | 217 |
Precipitation | 657 | 662 | 632 | 656 | 643 | 128 |
Humidity/Visibility | 119 | 115 | 114 | 108 | 112 | 119 |
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. |