Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1259 | 1145 | 1271 | 1229 | 1265 | 1209 |
| Tmin | 1260 | 1144 | 1271 | 1229 | 1266 | 1208 |
| Διάρκεια Ηλιοφάνειας | 372 | 336 | 402 | 418 | 465 | 449 |
| Υετός | 186 | 169 | 187 | 181 | 186 | 180 |
| Υγρασία/Ορατότητα | 185 | 167 | 185 | 179 | 185 | 179 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1261 | 1270 | 1250 | 1265 | 1228 | 1271 |
| Tmin | 1260 | 1273 | 1249 | 1266 | 1226 | 1271 |
| Διάρκεια Ηλιοφάνειας | 427 | 405 | 409 | 393 | 355 | 372 |
| Υετός | 184 | 190 | 210 | 215 | 209 | 217 |
| Υγρασία/Ορατότητα | 181 | 185 | 207 | 210 | 205 | 215 |
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. |
