Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 215 | 196 | 217 | 209 | 216 | 209 |
Tmin | 217 | 195 | 217 | 209 | 216 | 208 |
Duration of sunshine | 186 | 165 | 183 | 179 | 183 | 178 |
Precipitation | 0 | 0 | 16 | 0 | 0 | 0 |
Humidity/Visibility | 0 | 0 | 0 | 0 | 0 | 0 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 216 | 213 | 208 | 208 | 205 | 218 |
Tmin | 215 | 217 | 209 | 208 | 207 | 217 |
Duration of sunshine | 184 | 189 | 208 | 208 | 207 | 216 |
Precipitation | 0 | 0 | 0 | 0 | 30 | 9 |
Humidity/Visibility | 0 | 0 | 0 | 0 | 0 | 0 |
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. |