Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1257 | 1143 | 1287 | 1243 | 1263 | 1234 |
| Tmin | 1231 | 1132 | 1267 | 1221 | 1245 | 1193 |
| Διάρκεια Ηλιοφάνειας | 286 | 181 | 263 | 250 | 287 | 217 |
| Υετός | 232 | 210 | 232 | 232 | 256 | 241 |
| Υγρασία/Ορατότητα | 156 | 138 | 165 | 152 | 140 | 134 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1274 | 1250 | 1244 | 1277 | 1251 | 1289 |
| Tmin | 1232 | 1232 | 1228 | 1249 | 1213 | 1278 |
| Διάρκεια Ηλιοφάνειας | 314 | 284 | 327 | 328 | 200 | 338 |
| Υετός | 246 | 240 | 269 | 264 | 265 | 265 |
| Υγρασία/Ορατότητα | 137 | 123 | 160 | 153 | 158 | 173 |
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. |
