Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1188 | 1081 | 1206 | 1167 | 1205 | 1166 |
| Tmin | 1186 | 1082 | 1201 | 1164 | 1201 | 1163 |
| Διάρκεια Ηλιοφάνειας | 454 | 377 | 453 | 443 | 456 | 440 |
| Υετός | 198 | 186 | 193 | 189 | 194 | 190 |
| Υγρασία/Ορατότητα | 178 | 156 | 183 | 175 | 180 | 177 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1200 | 1207 | 1189 | 1221 | 1180 | 1235 |
| Tmin | 1196 | 1205 | 1182 | 1221 | 1177 | 1231 |
| Διάρκεια Ηλιοφάνειας | 483 | 459 | 466 | 475 | 454 | 482 |
| Υετός | 194 | 204 | 220 | 228 | 213 | 225 |
| Υγρασία/Ορατότητα | 179 | 182 | 202 | 204 | 204 | 212 |
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. |
