Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 710 | 641 | 719 | 692 | 690 | 691 |
| Tmin | 726 | 659 | 738 | 714 | 717 | 704 |
| Διάρκεια Ηλιοφάνειας | 186 | 198 | 217 | 150 | 155 | 240 |
| Υετός | 109 | 100 | 108 | 109 | 121 | 123 |
| Υγρασία/Ορατότητα | 93 | 87 | 102 | 97 | 82 | 92 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 720 | 686 | 669 | 724 | 693 | 724 |
| Tmin | 737 | 721 | 689 | 736 | 703 | 734 |
| Διάρκεια Ηλιοφάνειας | 248 | 186 | 210 | 248 | 120 | 217 |
| Υετός | 111 | 122 | 119 | 118 | 111 | 121 |
| Υγρασία/Ορατότητα | 100 | 81 | 77 | 94 | 81 | 103 |
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. |
