Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 21 | 7 | 0 | 0 | 0 | 0 |
| Tmin | 30 | 15 | 0 | 0 | 0 | 0 |
| Διάρκεια Ηλιοφάνειας | 62 | 28 | 31 | 60 | 93 | 90 |
| Υετός | 91 | 82 | 61 | 56 | 60 | 28 |
| Υγρασία/Ορατότητα | 81 | 71 | 54 | 46 | 53 | 22 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 0 | 0 | 0 | 0 | 0 | 0 |
| Tmin | 0 | 0 | 0 | 0 | 0 | 0 |
| Διάρκεια Ηλιοφάνειας | 31 | 62 | 120 | 93 | 30 | 93 |
| Υετός | 30 | 61 | 56 | 51 | 58 | 61 |
| Υγρασία/Ορατότητα | 25 | 48 | 48 | 41 | 51 | 56 |
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. |
