Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 0 | 0 | 1024 | 0 | 1074791425 | 1074791425 |
| Tmin | 1313416789 | 842878790 | 826102310 | 1311125558 | 1195725391 | 1028542281 |
| Διάρκεια Ηλιοφάνειας | 1 | 0 | -2134672216 | 0 | 5625285 | 0 |
| Υετός | 0 | 0 | 0 | 0 | 0 | 0 |
| Υγρασία/Ορατότητα | -1610799350 | 2044235459 | -1971661888 | 0 | 0 | 0 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1074791425 | 1074791425 | -2134673344 | 0 | -2134673848 | 0 |
| Tmin | 1163001904 | 1397052753 | 1048576 | 1073741824 | 1073741824 | 1073741824 |
| Διάρκεια Ηλιοφάνειας | 255 | 0 | 0 | 240 | 0 | 0 |
| Υετός | 0 | 0 | 0 | 0 | 0 | 0 |
| Υγρασία/Ορατότητα | 0 | 0 | -2134673408 | 0 | -1971889892 | 0 |
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. |
