Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 141 | 102 | 121 | 119 | 123 | 120 |
| Tmin | 150 | 113 | 123 | 117 | 121 | 118 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 155 | 142 | 156 | 151 | 155 | 150 |
| Υγρασία/Ορατότητα | 147 | 134 | 153 | 148 | 153 | 148 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 126 | 149 | 139 | 141 | 141 | 122 |
| Tmin | 126 | 145 | 145 | 137 | 144 | 119 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 160 | 188 | 179 | 184 | 179 | 163 |
| Υγρασία/Ορατότητα | 156 | 176 | 169 | 171 | 162 | 151 |
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. |
