Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 87 | 77 | 90 | 102 | 121 | 117 |
| Tmin | 88 | 82 | 90 | 102 | 118 | 117 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 98 | 87 | 98 | 113 | 131 | 121 |
| Υγρασία/Ορατότητα | 89 | 81 | 90 | 102 | 119 | 117 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 120 | 117 | 119 | 117 | 113 | 119 |
| Tmin | 114 | 120 | 116 | 114 | 107 | 121 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 130 | 132 | 124 | 123 | 129 | 130 |
| Υγρασία/Ορατότητα | 121 | 117 | 116 | 114 | 112 | 121 |
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. |
