Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 133 | 108 | 128 | 127 | 131 | 113 |
| Tmin | 137 | 121 | 140 | 134 | 139 | 134 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 157 | 143 | 155 | 153 | 155 | 149 |
| Υγρασία/Ορατότητα | 115 | 96 | 113 | 104 | 111 | 106 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 123 | 145 | 146 | 120 | 93 | 103 |
| Tmin | 134 | 152 | 160 | 120 | 104 | 105 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 158 | 188 | 185 | 178 | 137 | 144 |
| Υγρασία/Ορατότητα | 108 | 127 | 134 | 125 | 98 | 109 |
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. |
