Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 189 | 171 | 185 | 171 | 184 | 208 |
| Tmin | 199 | 178 | 192 | 177 | 187 | 210 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 155 | 143 | 159 | 169 | 191 | 189 |
| Υγρασία/Ορατότητα | 45 | 45 | 47 | 41 | 43 | 71 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 206 | 193 | 193 | 191 | 178 | 202 |
| Tmin | 224 | 200 | 196 | 199 | 185 | 211 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 194 | 212 | 204 | 200 | 196 | 110 |
| Υγρασία/Ορατότητα | 72 | 63 | 60 | 53 | 46 | 62 |
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. |
