Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1252 | 1146 | 1258 | 1219 | 1263 | 1224 |
| Tmin | 1256 | 1148 | 1271 | 1228 | 1266 | 1227 |
| Διάρκεια Ηλιοφάνειας | 420 | 401 | 444 | 442 | 475 | 461 |
| Υετός | 187 | 171 | 194 | 185 | 186 | 182 |
| Υγρασία/Ορατότητα | 182 | 166 | 178 | 175 | 184 | 177 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1260 | 1259 | 1238 | 1281 | 1247 | 1294 |
| Tmin | 1269 | 1270 | 1250 | 1291 | 1253 | 1297 |
| Διάρκεια Ηλιοφάνειας | 475 | 444 | 487 | 476 | 441 | 456 |
| Υετός | 186 | 190 | 214 | 215 | 217 | 226 |
| Υγρασία/Ορατότητα | 182 | 182 | 199 | 204 | 201 | 209 |
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. |
