Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 738 | 672 | 738 | 716 | 740 | 714 |
| Tmin | 740 | 671 | 740 | 716 | 739 | 710 |
| Διάρκεια Ηλιοφάνειας | 279 | 279 | 304 | 291 | 273 | 257 |
| Υετός | 124 | 114 | 124 | 121 | 128 | 120 |
| Υγρασία/Ορατότητα | 120 | 110 | 119 | 113 | 117 | 114 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 739 | 740 | 712 | 736 | 712 | 741 |
| Tmin | 730 | 739 | 712 | 732 | 718 | 741 |
| Διάρκεια Ηλιοφάνειας | 297 | 273 | 319 | 301 | 235 | 272 |
| Υετός | 127 | 126 | 122 | 123 | 120 | 124 |
| Υγρασία/Ορατότητα | 118 | 118 | 111 | 113 | 115 | 119 |
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. |
