Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 771 | 696 | 773 | 748 | 771 | 748 |
| Tmin | 774 | 697 | 772 | 748 | 772 | 747 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 775 | 700 | 775 | 751 | 775 | 750 |
| Υγρασία/Ορατότητα | 184 | 167 | 183 | 179 | 184 | 178 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 770 | 774 | 776 | 796 | 776 | 805 |
| Tmin | 775 | 774 | 778 | 797 | 777 | 804 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 775 | 780 | 781 | 803 | 780 | 806 |
| Υγρασία/Ορατότητα | 184 | 184 | 205 | 209 | 207 | 214 |
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. |
