Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1253 | 1136 | 1264 | 1227 | 1267 | 1228 |
| Tmin | 1256 | 1142 | 1267 | 1224 | 1267 | 1226 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 185 | 171 | 187 | 181 | 186 | 180 |
| Υγρασία/Ορατότητα | 175 | 160 | 183 | 178 | 183 | 178 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1268 | 1269 | 1255 | 1291 | 1245 | 1285 |
| Tmin | 1269 | 1270 | 1254 | 1292 | 1250 | 1280 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 186 | 190 | 212 | 215 | 210 | 213 |
| Υγρασία/Ορατότητα | 183 | 185 | 205 | 209 | 199 | 203 |
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. |
