Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 536 | 504 | 554 | 560 | 582 | 555 |
| Tmin | 539 | 501 | 558 | 561 | 584 | 553 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 128 | 120 | 124 | 154 | 161 | 156 |
| Υγρασία/Ορατότητα | 119 | 109 | 123 | 143 | 149 | 135 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 579 | 583 | 567 | 574 | 558 | 579 |
| Tmin | 583 | 585 | 569 | 579 | 558 | 583 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 163 | 159 | 152 | 155 | 160 | 159 |
| Υγρασία/Ορατότητα | 148 | 150 | 146 | 147 | 138 | 148 |
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. |
