Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1198 | 1117 | 1240 | 1196 | 1228 | 1196 |
Tmin | 1201 | 1121 | 1239 | 1198 | 1229 | 1195 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 650 | 584 | 657 | 629 | 645 | 623 |
Humidity/Visibility | 152 | 137 | 152 | 146 | 153 | 146 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1235 | 1259 | 1215 | 1240 | 1178 | 1205 |
Tmin | 1239 | 1263 | 1222 | 1241 | 1179 | 1202 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 646 | 654 | 625 | 650 | 636 | 635 |
Humidity/Visibility | 156 | 177 | 172 | 170 | 165 | 176 |
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. |