Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 740 | 666 | 735 | 732 | 768 | 742 |
| Tmin | 741 | 667 | 736 | 735 | 772 | 746 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 131 | 116 | 136 | 146 | 161 | 159 |
| Υγρασία/Ορατότητα | 88 | 79 | 84 | 97 | 111 | 106 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 763 | 765 | 742 | 760 | 744 | 761 |
| Tmin | 770 | 769 | 746 | 761 | 742 | 767 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 159 | 160 | 159 | 156 | 159 | 164 |
| Υγρασία/Ορατότητα | 109 | 107 | 105 | 104 | 105 | 106 |
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. |
