Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1177 | 1060 | 1177 | 1135 | 1174 | 1139 |
| Tmin | 1175 | 1065 | 1173 | 1138 | 1178 | 1137 |
| Διάρκεια Ηλιοφάνειας | 0 | 28 | 93 | 90 | 93 | 30 |
| Υετός | 126 | 113 | 124 | 122 | 124 | 120 |
| Υγρασία/Ορατότητα | 121 | 110 | 121 | 114 | 120 | 116 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1174 | 1177 | 1138 | 1168 | 1137 | 1175 |
| Tmin | 1172 | 1174 | 1137 | 1173 | 1139 | 1176 |
| Διάρκεια Ηλιοφάνειας | 93 | 62 | 90 | 62 | 60 | 62 |
| Υετός | 128 | 127 | 120 | 122 | 123 | 126 |
| Υγρασία/Ορατότητα | 120 | 120 | 116 | 114 | 118 | 122 |
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. |
