Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 389 | 349 | 385 | 384 | 398 | 398 |
| Tmin | 388 | 349 | 388 | 382 | 399 | 391 |
| Διάρκεια Ηλιοφάνειας | 62 | 84 | 93 | 60 | 62 | 60 |
| Υετός | 98 | 89 | 98 | 96 | 95 | 103 |
| Υγρασία/Ορατότητα | 89 | 80 | 88 | 87 | 90 | 99 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 421 | 424 | 412 | 417 | 400 | 417 |
| Tmin | 409 | 423 | 408 | 411 | 404 | 416 |
| Διάρκεια Ηλιοφάνειας | 31 | 31 | 30 | 93 | 30 | 93 |
| Υετός | 136 | 130 | 124 | 122 | 122 | 126 |
| Υγρασία/Ορατότητα | 115 | 118 | 114 | 114 | 115 | 121 |
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. |
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