Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 72 | 70 | 63 | 81 | 88 | 98 |
| Tmin | 88 | 76 | 91 | 99 | 121 | 114 |
| Διάρκεια Ηλιοφάνειας | 62 | 60 | 51 | 75 | 79 | 78 |
| Υετός | 99 | 95 | 97 | 107 | 130 | 121 |
| Υγρασία/Ορατότητα | 63 | 57 | 60 | 74 | 88 | 88 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 103 | 97 | 90 | 84 | 86 | 94 |
| Tmin | 114 | 119 | 118 | 118 | 111 | 115 |
| Διάρκεια Ηλιοφάνειας | 99 | 84 | 80 | 76 | 78 | 74 |
| Υετός | 128 | 129 | 121 | 123 | 122 | 139 |
| Υγρασία/Ορατότητα | 90 | 85 | 87 | 83 | 82 | 80 |
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. |
