Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 755 | 678 | 756 | 735 | 757 | 732 |
| Tmin | 755 | 675 | 752 | 735 | 767 | 726 |
| Διάρκεια Ηλιοφάνειας | 248 | 226 | 248 | 240 | 248 | 270 |
| Υετός | 659 | 587 | 651 | 649 | 673 | 679 |
| Υγρασία/Ορατότητα | 107 | 85 | 99 | 98 | 105 | 102 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 769 | 758 | 737 | 771 | 755 | 755 |
| Tmin | 765 | 755 | 735 | 779 | 753 | 753 |
| Διάρκεια Ηλιοφάνειας | 217 | 217 | 270 | 248 | 210 | 279 |
| Υετός | 684 | 695 | 685 | 708 | 674 | 137 |
| Υγρασία/Ορατότητα | 119 | 101 | 109 | 120 | 117 | 106 |
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. |
