Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1615 | 1476 | 1627 | 1578 | 1606 | 1575 |
Tmin | 1626 | 1480 | 1632 | 1578 | 1605 | 1584 |
Duration of sunshine | 124 | 113 | 124 | 120 | 155 | 180 |
Precipitation | 186 | 169 | 187 | 181 | 186 | 180 |
Humidity/Visibility | 183 | 166 | 184 | 176 | 182 | 177 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1629 | 1629 | 1593 | 1659 | 1608 | 1661 |
Tmin | 1636 | 1634 | 1596 | 1662 | 1614 | 1666 |
Duration of sunshine | 186 | 186 | 180 | 186 | 120 | 155 |
Precipitation | 188 | 190 | 210 | 215 | 210 | 217 |
Humidity/Visibility | 182 | 183 | 205 | 208 | 198 | 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. |