Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 680 | 613 | 693 | 644 | 668 | 640 |
| Tmin | 775 | 703 | 786 | 765 | 787 | 744 |
| Διάρκεια Ηλιοφάνειας | 148 | 141 | 161 | 160 | 160 | 128 |
| Υετός | 185 | 167 | 185 | 181 | 185 | 177 |
| Υγρασία/Ορατότητα | 124 | 116 | 131 | 121 | 122 | 99 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 650 | 659 | 638 | 672 | 662 | 669 |
| Tmin | 779 | 787 | 789 | 790 | 780 | 818 |
| Διάρκεια Ηλιοφάνειας | 152 | 161 | 182 | 157 | 174 | 192 |
| Υετός | 185 | 182 | 216 | 199 | 215 | 212 |
| Υγρασία/Ορατότητα | 112 | 103 | 126 | 123 | 133 | 138 |
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. |
