Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 124 | 114 | 125 | 120 | 124 | 121 |
| Tmin | 216 | 180 | 200 | 200 | 197 | 205 |
| Διάρκεια Ηλιοφάνειας | 173 | 171 | 151 | 110 | 70 | 123 |
| Υετός | 114 | 104 | 112 | 127 | 137 | 122 |
| Υγρασία/Ορατότητα | 51 | 34 | 40 | 37 | 42 | 42 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 124 | 124 | 120 | 124 | 120 | 124 |
| Tmin | 203 | 207 | 206 | 216 | 182 | 211 |
| Διάρκεια Ηλιοφάνειας | 153 | 130 | 171 | 145 | 56 | 91 |
| Υετός | 133 | 135 | 150 | 136 | 128 | 134 |
| Υγρασία/Ορατότητα | 42 | 40 | 47 | 47 | 29 | 45 |
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. |
