Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1184 | 1102 | 1216 | 1184 | 1215 | 1187 |
Tmin | 1180 | 1084 | 1207 | 1174 | 1211 | 1180 |
Duration of sunshine | 186 | 197 | 186 | 210 | 279 | 270 |
Precipitation | 761 | 699 | 773 | 751 | 776 | 750 |
Humidity/Visibility | 154 | 146 | 162 | 153 | 157 | 158 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1221 | 1213 | 1203 | 1250 | 1215 | 1244 |
Tmin | 1213 | 1208 | 1205 | 1244 | 1201 | 1244 |
Duration of sunshine | 217 | 248 | 240 | 279 | 240 | 279 |
Precipitation | 777 | 776 | 775 | 801 | 782 | 212 |
Humidity/Visibility | 151 | 152 | 177 | 179 | 173 | 182 |
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. |