Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1617 | 1476 | 1624 | 1577 | 1604 | 1575 |
| Tmin | 1626 | 1482 | 1638 | 1581 | 1607 | 1582 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 186 | 169 | 187 | 181 | 186 | 180 |
| Υγρασία/Ορατότητα | 177 | 160 | 176 | 171 | 174 | 171 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1624 | 1627 | 1609 | 1658 | 1611 | 1668 |
| Tmin | 1634 | 1632 | 1613 | 1664 | 1618 | 1667 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 188 | 190 | 210 | 215 | 210 | 217 |
| Υγρασία/Ορατότητα | 171 | 175 | 193 | 202 | 201 | 215 |
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. |
