Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 340 | 306 | 341 | 345 | 369 | 360 |
| Tmin | 341 | 306 | 340 | 346 | 372 | 356 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 93 | 87 | 95 | 111 | 124 | 122 |
| Υγρασία/Ορατότητα | 92 | 84 | 91 | 104 | 122 | 119 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 369 | 366 | 359 | 362 | 357 | 368 |
| Tmin | 372 | 371 | 359 | 364 | 358 | 372 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 127 | 129 | 122 | 124 | 120 | 124 |
| Υγρασία/Ορατότητα | 123 | 122 | 118 | 116 | 118 | 124 |
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. |
