Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 118 | 110 | 122 | 141 | 153 | 149 |
| Tmin | 121 | 106 | 120 | 142 | 152 | 147 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 126 | 112 | 125 | 146 | 155 | 152 |
| Υγρασία/Ορατότητα | 121 | 111 | 122 | 143 | 153 | 148 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 151 | 150 | 144 | 143 | 144 | 154 |
| Tmin | 146 | 154 | 146 | 147 | 147 | 150 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 157 | 156 | 152 | 154 | 153 | 155 |
| Υγρασία/Ορατότητα | 152 | 151 | 146 | 148 | 146 | 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. |
