Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 791 | 718 | 794 | 790 | 804 | 791 |
| Tmin | 798 | 718 | 792 | 789 | 802 | 796 |
| Διάρκεια Ηλιοφάνειας | 339 | 306 | 277 | 298 | 371 | 317 |
| Υετός | 626 | 564 | 626 | 624 | 634 | 639 |
| Υγρασία/Ορατότητα | 117 | 108 | 119 | 132 | 128 | 136 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 811 | 820 | 792 | 812 | 783 | 820 |
| Tmin | 793 | 798 | 793 | 808 | 774 | 811 |
| Διάρκεια Ηλιοφάνειας | 292 | 295 | 321 | 351 | 277 | 357 |
| Υετός | 665 | 661 | 642 | 675 | 646 | 169 |
| Υγρασία/Ορατότητα | 123 | 129 | 135 | 130 | 119 | 137 |
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. |
