Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 132 | 110 | 101 | 98 | 108 | 99 |
| Tmin | 130 | 124 | 117 | 115 | 120 | 109 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 156 | 137 | 150 | 147 | 152 | 144 |
| Υγρασία/Ορατότητα | 134 | 126 | 143 | 135 | 139 | 135 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 110 | 129 | 127 | 126 | 118 | 117 |
| Tmin | 111 | 139 | 139 | 135 | 116 | 121 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 151 | 187 | 179 | 172 | 148 | 155 |
| Υγρασία/Ορατότητα | 137 | 158 | 163 | 155 | 135 | 142 |
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. |
