Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1182 | 1089 | 1207 | 1189 | 1232 | 1196 |
Tmin | 1183 | 1093 | 1206 | 1189 | 1234 | 1194 |
Duration of sunshine | 217 | 226 | 248 | 270 | 279 | 270 |
Precipitation | 124 | 114 | 127 | 148 | 155 | 150 |
Humidity/Visibility | 122 | 110 | 121 | 142 | 152 | 147 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1214 | 1199 | 1173 | 1223 | 1195 | 1237 |
Tmin | 1214 | 1208 | 1178 | 1230 | 1198 | 1232 |
Duration of sunshine | 248 | 279 | 300 | 279 | 270 | 279 |
Precipitation | 155 | 157 | 151 | 152 | 150 | 159 |
Humidity/Visibility | 147 | 148 | 141 | 146 | 147 | 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. |