Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 60 | 48 | 59 | 55 | 59 | 32 |
| Tmin | 73 | 69 | 81 | 83 | 87 | 51 |
| Διάρκεια Ηλιοφάνειας | 73 | 70 | 81 | 82 | 87 | 50 |
| Υετός | 173 | 164 | 179 | 183 | 181 | 164 |
| Υγρασία/Ορατότητα | 62 | 64 | 70 | 72 | 75 | 52 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 58 | 62 | 54 | 57 | 56 | 57 |
| Tmin | 77 | 84 | 84 | 77 | 63 | 85 |
| Διάρκεια Ηλιοφάνειας | 78 | 84 | 84 | 77 | 63 | 86 |
| Υετός | 177 | 165 | 203 | 179 | 200 | 190 |
| Υγρασία/Ορατότητα | 66 | 70 | 88 | 74 | 69 | 76 |
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. |
