Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1629 | 1479 | 1632 | 1615 | 1668 | 1612 |
| Tmin | 1640 | 1483 | 1641 | 1615 | 1668 | 1617 |
| Διάρκεια Ηλιοφάνειας | 155 | 197 | 248 | 270 | 279 | 240 |
| Υετός | 94 | 88 | 95 | 122 | 130 | 124 |
| Υγρασία/Ορατότητα | 88 | 83 | 89 | 116 | 120 | 116 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1661 | 1667 | 1614 | 1667 | 1613 | 1668 |
| Tmin | 1668 | 1671 | 1614 | 1669 | 1613 | 1670 |
| Διάρκεια Ηλιοφάνειας | 186 | 217 | 180 | 155 | 150 | 186 |
| Υετός | 129 | 127 | 124 | 123 | 126 | 125 |
| Υγρασία/Ορατότητα | 121 | 120 | 116 | 115 | 117 | 122 |
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. |
