Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 87 | 78 | 82 | 108 | 115 | 116 |
| Tmin | 86 | 75 | 87 | 106 | 120 | 110 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 93 | 84 | 92 | 116 | 123 | 124 |
| Υγρασία/Ορατότητα | 88 | 78 | 88 | 107 | 117 | 114 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 119 | 119 | 116 | 109 | 112 | 114 |
| Tmin | 113 | 115 | 108 | 109 | 109 | 119 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 125 | 124 | 120 | 119 | 117 | 124 |
| Υγρασία/Ορατότητα | 118 | 118 | 112 | 113 | 111 | 118 |
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. |
