Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 462 | 391 | 425 | 414 | 428 | 414 |
| Tmin | 462 | 398 | 424 | 409 | 431 | 415 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 384 | 344 | 387 | 379 | 374 | 370 |
| Υγρασία/Ορατότητα | 136 | 123 | 130 | 123 | 126 | 128 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 435 | 436 | 412 | 417 | 414 | 428 |
| Tmin | 435 | 440 | 414 | 422 | 412 | 432 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 374 | 410 | 400 | 410 | 375 | 394 |
| Υγρασία/Ορατότητα | 135 | 155 | 147 | 141 | 128 | 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. |
