Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 122 | 97 | 93 | 138 | 153 | 146 |
| Tmin | 120 | 89 | 95 | 137 | 152 | 147 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 129 | 106 | 96 | 143 | 155 | 153 |
| Υγρασία/Ορατότητα | 120 | 98 | 91 | 137 | 153 | 146 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 147 | 150 | 148 | 143 | 148 | 153 |
| Tmin | 152 | 153 | 148 | 145 | 148 | 150 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 160 | 158 | 153 | 153 | 150 | 156 |
| Υγρασία/Ορατότητα | 149 | 151 | 147 | 147 | 148 | 153 |
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. |
