Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 597 | 535 | 602 | 568 | 592 | 575 |
| Tmin | 589 | 533 | 601 | 585 | 597 | 580 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 198 | 167 | 188 | 183 | 193 | 185 |
| Υγρασία/Ορατότητα | 119 | 111 | 127 | 123 | 122 | 115 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 602 | 599 | 596 | 611 | 590 | 619 |
| Tmin | 595 | 611 | 604 | 620 | 610 | 640 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 191 | 192 | 200 | 213 | 221 | 234 |
| Υγρασία/Ορατότητα | 127 | 125 | 135 | 138 | 138 | 147 |
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. |
