Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 116 | 89 | 111 | 109 | 109 | 94 |
| Tmin | 117 | 98 | 115 | 111 | 116 | 100 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 155 | 139 | 150 | 148 | 149 | 139 |
| Υγρασία/Ορατότητα | 135 | 126 | 143 | 135 | 139 | 133 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 102 | 130 | 132 | 127 | 108 | 111 |
| Tmin | 107 | 126 | 136 | 129 | 113 | 112 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 148 | 186 | 179 | 175 | 149 | 157 |
| Υγρασία/Ορατότητα | 138 | 158 | 164 | 158 | 137 | 144 |
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. |
