Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 108 | 100 | 106 | 113 | 120 | 113 |
| Tmin | 114 | 95 | 101 | 111 | 114 | 113 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 128 | 114 | 130 | 124 | 129 | 131 |
| Υγρασία/Ορατότητα | 102 | 82 | 81 | 86 | 93 | 93 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 119 | 117 | 114 | 112 | 116 | 119 |
| Tmin | 114 | 114 | 114 | 108 | 118 | 120 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 134 | 134 | 124 | 122 | 125 | 139 |
| Υγρασία/Ορατότητα | 100 | 93 | 92 | 89 | 100 | 97 |
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. |
