Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1530 | 1396 | 1517 | 1462 | 1497 | 1437 |
| Tmin | 1503 | 1368 | 1483 | 1431 | 1465 | 1407 |
| Διάρκεια Ηλιοφάνειας | 277 | 244 | 272 | 261 | 256 | 234 |
| Υετός | 190 | 172 | 194 | 187 | 186 | 182 |
| Υγρασία/Ορατότητα | 181 | 165 | 181 | 173 | 183 | 177 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1485 | 1461 | 1429 | 1441 | 1399 | 1453 |
| Tmin | 1452 | 1431 | 1398 | 1410 | 1368 | 1423 |
| Διάρκεια Ηλιοφάνειας | 244 | 221 | 227 | 216 | 210 | 216 |
| Υετός | 186 | 194 | 212 | 215 | 212 | 217 |
| Υγρασία/Ορατότητα | 183 | 183 | 205 | 209 | 205 | 211 |
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. |
