Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 705 | 626 | 699 | 672 | 698 | 698 |
| Tmin | 708 | 638 | 701 | 677 | 702 | 713 |
| Διάρκεια Ηλιοφάνειας | 93 | 140 | 186 | 150 | 186 | 150 |
| Υετός | 62 | 61 | 62 | 62 | 85 | 90 |
| Υγρασία/Ορατότητα | 59 | 54 | 59 | 54 | 67 | 85 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 717 | 706 | 688 | 712 | 686 | 721 |
| Tmin | 732 | 721 | 686 | 719 | 689 | 728 |
| Διάρκεια Ηλιοφάνειας | 186 | 248 | 240 | 217 | 210 | 186 |
| Υετός | 101 | 110 | 107 | 92 | 100 | 99 |
| Υγρασία/Ορατότητα | 88 | 76 | 75 | 78 | 74 | 86 |
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. |
