Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 310 | 281 | 313 | 304 | 313 | 305 |
| Tmin | 310 | 279 | 311 | 310 | 320 | 305 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 93 | 85 | 95 | 108 | 124 | 120 |
| Υγρασία/Ορατότητα | 92 | 84 | 92 | 104 | 123 | 119 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 320 | 313 | 307 | 338 | 334 | 344 |
| Tmin | 323 | 319 | 305 | 341 | 333 | 342 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 127 | 127 | 120 | 122 | 120 | 124 |
| Υγρασία/Ορατότητα | 122 | 122 | 118 | 117 | 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. |
