Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 773 | 698 | 774 | 749 | 774 | 761 |
| Tmin | 772 | 700 | 774 | 750 | 775 | 762 |
| Διάρκεια Ηλιοφάνειας | 217 | 198 | 186 | 210 | 310 | 240 |
| Υετός | 62 | 57 | 64 | 63 | 62 | 74 |
| Υγρασία/Ορατότητα | 61 | 55 | 60 | 58 | 61 | 70 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 803 | 803 | 779 | 802 | 774 | 804 |
| Tmin | 801 | 804 | 778 | 800 | 779 | 806 |
| Διάρκεια Ηλιοφάνειας | 310 | 217 | 270 | 279 | 240 | 279 |
| Υετός | 96 | 95 | 90 | 91 | 90 | 95 |
| Υγρασία/Ορατότητα | 91 | 90 | 88 | 86 | 87 | 91 |
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. |
