Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1167 | 1089 | 1206 | 1190 | 1229 | 1199 |
Tmin | 1168 | 1087 | 1204 | 1183 | 1228 | 1195 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 124 | 114 | 125 | 148 | 156 | 150 |
Humidity/Visibility | 122 | 110 | 121 | 140 | 151 | 148 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1233 | 1234 | 1187 | 1229 | 1190 | 1235 |
Tmin | 1231 | 1233 | 1186 | 1225 | 1193 | 1236 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 160 | 158 | 153 | 152 | 152 | 156 |
Humidity/Visibility | 149 | 150 | 146 | 146 | 145 | 151 |
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. |