Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1100 | 1023 | 1139 | 1126 | 1165 | 1122 |
Tmin | 1099 | 1020 | 1134 | 1126 | 1163 | 1120 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 714 | 648 | 715 | 720 | 754 | 718 |
Humidity/Visibility | 122 | 107 | 117 | 137 | 145 | 144 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1168 | 1164 | 1107 | 1164 | 1134 | 1166 |
Tmin | 1164 | 1166 | 1096 | 1161 | 1135 | 1163 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 744 | 748 | 723 | 747 | 719 | 154 |
Humidity/Visibility | 146 | 148 | 142 | 145 | 146 | 145 |
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. |