Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 849 | 775 | 843 | 834 | 839 | 828 |
Tmin | 857 | 777 | 846 | 833 | 845 | 831 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 156 | 141 | 164 | 156 | 162 | 152 |
Humidity/Visibility | 152 | 137 | 151 | 146 | 150 | 144 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 821 | 834 | 832 | 880 | 856 | 885 |
Tmin | 835 | 836 | 834 | 877 | 853 | 890 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 157 | 157 | 152 | 185 | 182 | 188 |
Humidity/Visibility | 148 | 147 | 145 | 177 | 173 | 181 |
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. |