Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 103 | 78 | 101 | 99 | 109 | 104 |
| Tmin | 113 | 100 | 108 | 107 | 112 | 107 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 125 | 109 | 126 | 123 | 127 | 120 |
| Υγρασία/Ορατότητα | 91 | 79 | 88 | 82 | 91 | 88 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 106 | 126 | 125 | 124 | 97 | 101 |
| Tmin | 105 | 126 | 139 | 114 | 95 | 106 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 129 | 156 | 152 | 147 | 121 | 136 |
| Υγρασία/Ορατότητα | 94 | 102 | 114 | 102 | 83 | 92 |
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. |
