Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 103 | 85 | 103 | 101 | 108 | 96 |
| Tmin | 107 | 94 | 107 | 108 | 108 | 99 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 134 | 118 | 126 | 125 | 124 | 126 |
| Υγρασία/Ορατότητα | 108 | 98 | 108 | 96 | 107 | 104 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 107 | 130 | 129 | 121 | 89 | 108 |
| Tmin | 105 | 123 | 134 | 113 | 92 | 108 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 124 | 157 | 153 | 151 | 122 | 136 |
| Υγρασία/Ορατότητα | 107 | 121 | 132 | 123 | 102 | 112 |
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. |
