Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 506 | 448 | 490 | 491 | 495 | 495 |
| Tmin | 508 | 454 | 493 | 487 | 493 | 493 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 155 | 142 | 157 | 151 | 155 | 150 |
| Υγρασία/Ορατότητα | 151 | 137 | 143 | 148 | 149 | 148 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 497 | 497 | 501 | 537 | 522 | 550 |
| Tmin | 506 | 501 | 507 | 541 | 528 | 555 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 157 | 157 | 152 | 183 | 180 | 186 |
| Υγρασία/Ορατότητα | 151 | 151 | 149 | 175 | 171 | 177 |
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. |
