Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 340 | 305 | 341 | 344 | 372 | 360 |
| Tmin | 340 | 306 | 340 | 345 | 372 | 358 |
| Διάρκεια Ηλιοφάνειας | 248 | 254 | 279 | 240 | 310 | 300 |
| Υετός | 95 | 87 | 97 | 111 | 124 | 120 |
| Υγρασία/Ορατότητα | 92 | 83 | 91 | 104 | 123 | 119 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 368 | 369 | 358 | 365 | 357 | 368 |
| Tmin | 372 | 372 | 359 | 366 | 357 | 372 |
| Διάρκεια Ηλιοφάνειας | 310 | 248 | 300 | 310 | 210 | 279 |
| Υετός | 127 | 129 | 120 | 122 | 120 | 124 |
| Υγρασία/Ορατότητα | 122 | 121 | 118 | 117 | 117 | 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. |
