Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 787 | 708 | 788 | 793 | 820 | 786 |
| Tmin | 795 | 712 | 792 | 795 | 819 | 796 |
| Διάρκεια Ηλιοφάνειας | 312 | 277 | 245 | 238 | 371 | 257 |
| Υετός | 657 | 590 | 661 | 662 | 686 | 665 |
| Υγρασία/Ορατότητα | 113 | 104 | 115 | 136 | 141 | 134 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 823 | 821 | 778 | 808 | 787 | 818 |
| Tmin | 827 | 823 | 791 | 812 | 783 | 814 |
| Διάρκεια Ηλιοφάνειας | 271 | 333 | 348 | 318 | 285 | 296 |
| Υετός | 693 | 694 | 670 | 704 | 678 | 165 |
| Υγρασία/Ορατότητα | 143 | 141 | 131 | 131 | 126 | 133 |
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. |
