Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 48 | 48 | 59 | 48 | 61 | 58 |
| Tmin | 60 | 69 | 83 | 72 | 86 | 77 |
| Διάρκεια Ηλιοφάνειας | 59 | 69 | 83 | 72 | 85 | 76 |
| Υετός | 176 | 167 | 174 | 172 | 158 | 155 |
| Υγρασία/Ορατότητα | 62 | 65 | 73 | 67 | 65 | 62 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 59 | 61 | 53 | 42 | 46 | 53 |
| Tmin | 84 | 68 | 78 | 55 | 60 | 85 |
| Διάρκεια Ηλιοφάνειας | 85 | 66 | 79 | 55 | 60 | 85 |
| Υετός | 152 | 176 | 202 | 180 | 203 | 197 |
| Υγρασία/Ορατότητα | 64 | 67 | 83 | 65 | 57 | 78 |
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. |
