Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 103 | 97 | 99 | 118 | 132 | 125 |
| Tmin | 119 | 109 | 120 | 143 | 152 | 142 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 132 | 120 | 130 | 150 | 157 | 162 |
| Υγρασία/Ορατότητα | 86 | 79 | 85 | 102 | 109 | 104 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 132 | 147 | 146 | 144 | 144 | 146 |
| Tmin | 144 | 149 | 144 | 141 | 145 | 141 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 161 | 165 | 154 | 167 | 160 | 177 |
| Υγρασία/Ορατότητα | 108 | 111 | 109 | 107 | 108 | 108 |
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. |
