Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 76 | 74 | 72 | 67 | 79 | 89 |
| Tmin | 88 | 81 | 83 | 84 | 88 | 95 |
| Διάρκεια Ηλιοφάνειας | 74 | 71 | 74 | 65 | 80 | 76 |
| Υετός | 104 | 98 | 105 | 105 | 98 | 114 |
| Υγρασία/Ορατότητα | 61 | 58 | 60 | 58 | 64 | 69 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 77 | 90 | 105 | 114 | 97 | 98 |
| Tmin | 88 | 97 | 117 | 117 | 107 | 114 |
| Διάρκεια Ηλιοφάνειας | 66 | 90 | 104 | 115 | 95 | 99 |
| Υετός | 115 | 122 | 122 | 128 | 129 | 131 |
| Υγρασία/Ορατότητα | 62 | 69 | 83 | 84 | 78 | 81 |
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. |
