Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 85 | 64 | 98 | 83 | 102 | 90 |
| Tmin | 77 | 67 | 79 | 87 | 105 | 95 |
| Διάρκεια Ηλιοφάνειας | 68 | 53 | 65 | 67 | 82 | 84 |
| Υετός | 139 | 126 | 147 | 165 | 163 | 172 |
| Υγρασία/Ορατότητα | 69 | 59 | 70 | 65 | 81 | 76 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 89 | 77 | 80 | 108 | 92 | 113 |
| Tmin | 102 | 98 | 85 | 107 | 79 | 104 |
| Διάρκεια Ηλιοφάνειας | 97 | 90 | 82 | 97 | 68 | 91 |
| Υετός | 180 | 185 | 185 | 168 | 168 | 199 |
| Υγρασία/Ορατότητα | 80 | 74 | 71 | 87 | 67 | 84 |
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. |
