Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 732 | 649 | 704 | 716 | 753 | 733 |
| Tmin | 733 | 650 | 700 | 730 | 762 | 738 |
| Διάρκεια Ηλιοφάνειας | 155 | 169 | 186 | 150 | 155 | 150 |
| Υετός | 115 | 107 | 98 | 129 | 156 | 154 |
| Υγρασία/Ορατότητα | 84 | 69 | 78 | 104 | 107 | 108 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 749 | 754 | 731 | 756 | 732 | 760 |
| Tmin | 763 | 759 | 736 | 761 | 726 | 753 |
| Διάρκεια Ηλιοφάνειας | 217 | 155 | 240 | 186 | 180 | 124 |
| Υετός | 136 | 145 | 140 | 128 | 158 | 158 |
| Υγρασία/Ορατότητα | 109 | 109 | 104 | 112 | 103 | 115 |
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. |
