Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 834 | 751 | 835 | 809 | 834 | 808 |
Tmin | 835 | 754 | 835 | 808 | 836 | 808 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 168 | 186 | 181 | 186 | 180 |
Humidity/Visibility | 184 | 166 | 184 | 179 | 184 | 178 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 833 | 834 | 838 | 858 | 820 | 861 |
Tmin | 835 | 839 | 839 | 860 | 820 | 864 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 186 | 190 | 210 | 215 | 207 | 216 |
Humidity/Visibility | 184 | 184 | 206 | 209 | 190 | 210 |
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. |