Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 669 | 604 | 665 | 644 | 666 | 640 |
| Tmin | 647 | 585 | 647 | 626 | 651 | 628 |
| Διάρκεια Ηλιοφάνειας | 62 | 113 | 93 | 150 | 155 | 60 |
| Υετός | 188 | 165 | 184 | 177 | 179 | 173 |
| Υγρασία/Ορατότητα | 153 | 139 | 150 | 147 | 153 | 147 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 664 | 668 | 679 | 695 | 680 | 678 |
| Tmin | 648 | 650 | 657 | 676 | 653 | 673 |
| Διάρκεια Ηλιοφάνειας | 155 | 124 | 120 | 124 | 90 | 93 |
| Υετός | 182 | 181 | 207 | 211 | 208 | 200 |
| Υγρασία/Ορατότητα | 154 | 155 | 177 | 177 | 176 | 178 |
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. |
