Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 801 | 724 | 803 | 779 | 804 | 778 |
Tmin | 804 | 725 | 802 | 777 | 806 | 778 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 189 | 169 | 188 | 181 | 188 | 173 |
Humidity/Visibility | 182 | 165 | 183 | 177 | 183 | 177 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 804 | 804 | 805 | 827 | 803 | 835 |
Tmin | 805 | 806 | 806 | 827 | 807 | 834 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 163 | 184 | 202 | 208 | 200 | 201 |
Humidity/Visibility | 184 | 183 | 205 | 207 | 205 | 214 |
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. |