Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 830 | 748 | 836 | 805 | 833 | 808 |
| Tmin | 831 | 754 | 836 | 804 | 830 | 803 |
| Διάρκεια Ηλιοφάνειας | 272 | 242 | 298 | 288 | 295 | 289 |
| Υετός | 188 | 169 | 187 | 186 | 186 | 180 |
| Υγρασία/Ορατότητα | 180 | 165 | 183 | 176 | 183 | 177 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 829 | 829 | 834 | 854 | 831 | 859 |
| Tmin | 834 | 835 | 827 | 853 | 834 | 860 |
| Διάρκεια Ηλιοφάνειας | 302 | 300 | 312 | 283 | 317 | 323 |
| Υετός | 188 | 190 | 216 | 218 | 214 | 226 |
| Υγρασία/Ορατότητα | 182 | 183 | 204 | 206 | 204 | 209 |
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. |
