Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 135 | 112 | 105 | 108 | 108 | 98 |
| Tmin | 143 | 124 | 120 | 116 | 118 | 112 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 158 | 141 | 156 | 151 | 155 | 149 |
| Υγρασία/Ορατότητα | 143 | 125 | 144 | 136 | 142 | 136 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 101 | 78 | 105 | 106 | 115 | 114 |
| Tmin | 109 | 84 | 110 | 112 | 112 | 117 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 155 | 189 | 183 | 178 | 154 | 163 |
| Υγρασία/Ορατότητα | 141 | 160 | 166 | 157 | 135 | 145 |
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. |
