Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 598 | 559 | 614 | 592 | 615 | 591 |
| Tmin | 601 | 560 | 615 | 595 | 619 | 599 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 187 | 169 | 187 | 181 | 190 | 180 |
| Υγρασία/Ορατότητα | 184 | 167 | 185 | 178 | 183 | 179 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 617 | 618 | 612 | 614 | 597 | 618 |
| Tmin | 615 | 618 | 612 | 614 | 596 | 619 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 186 | 189 | 211 | 214 | 213 | 217 |
| Υγρασία/Ορατότητα | 184 | 185 | 206 | 209 | 206 | 216 |
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. |
