Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 305 | 276 | 303 | 326 | 331 | 319 |
| Tmin | 305 | 279 | 309 | 325 | 336 | 327 |
| Διάρκεια Ηλιοφάνειας | 186 | 197 | 248 | 240 | 310 | 300 |
| Υετός | 97 | 87 | 95 | 130 | 131 | 122 |
| Υγρασία/Ορατότητα | 90 | 83 | 90 | 113 | 119 | 116 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 325 | 332 | 325 | 331 | 325 | 335 |
| Tmin | 337 | 337 | 326 | 334 | 326 | 337 |
| Διάρκεια Ηλιοφάνειας | 186 | 217 | 210 | 279 | 90 | 279 |
| Υετός | 130 | 131 | 123 | 123 | 123 | 132 |
| Υγρασία/Ορατότητα | 120 | 119 | 117 | 114 | 115 | 120 |
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. |
