Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 71 | 78 | 84 | 116 | 121 | 116 |
| Tmin | 90 | 82 | 91 | 115 | 120 | 116 |
| Διάρκεια Ηλιοφάνειας | 217 | 197 | 248 | 240 | 217 | 270 |
| Υετός | 101 | 89 | 96 | 127 | 126 | 121 |
| Υγρασία/Ορατότητα | 87 | 83 | 90 | 116 | 120 | 118 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 113 | 114 | 83 | 84 | 82 | 68 |
| Tmin | 116 | 120 | 118 | 118 | 111 | 119 |
| Διάρκεια Ηλιοφάνειας | 217 | 93 | 150 | 155 | 210 | 186 |
| Υετός | 130 | 129 | 121 | 122 | 124 | 129 |
| Υγρασία/Ορατότητα | 121 | 120 | 116 | 114 | 115 | 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. |
