Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1151 | 1061 | 1176 | 1135 | 1177 | 1137 |
Tmin | 1155 | 1065 | 1175 | 1137 | 1178 | 1137 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 729 | 673 | 759 | 736 | 770 | 744 |
Humidity/Visibility | 178 | 160 | 173 | 168 | 171 | 166 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1168 | 1166 | 1157 | 1197 | 1153 | 1181 |
Tmin | 1168 | 1166 | 1156 | 1198 | 1157 | 1179 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 743 | 750 | 751 | 767 | 723 | 747 |
Humidity/Visibility | 169 | 167 | 199 | 201 | 199 | 180 |
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. |