Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 680 | 615 | 682 | 672 | 689 | 659 |
| Tmin | 802 | 723 | 803 | 774 | 805 | 778 |
| Διάρκεια Ηλιοφάνειας | 173 | 149 | 173 | 163 | 170 | 171 |
| Υετός | 651 | 592 | 651 | 637 | 651 | 630 |
| Υγρασία/Ορατότητα | 121 | 123 | 136 | 137 | 139 | 121 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 681 | 682 | 682 | 694 | 657 | 680 |
| Tmin | 804 | 803 | 803 | 824 | 803 | 833 |
| Διάρκεια Ηλιοφάνειας | 167 | 168 | 189 | 190 | 188 | 202 |
| Υετός | 651 | 657 | 662 | 680 | 664 | 219 |
| Υγρασία/Ορατότητα | 136 | 130 | 157 | 155 | 152 | 154 |
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. |
