Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1234 | 1138 | 1261 | 1227 | 1260 | 1222 |
| Tmin | 1237 | 1140 | 1261 | 1223 | 1267 | 1221 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 780 | 702 | 781 | 751 | 779 | 754 |
| Υγρασία/Ορατότητα | 167 | 144 | 164 | 173 | 173 | 168 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1261 | 1250 | 1245 | 1284 | 1245 | 1285 |
| Tmin | 1257 | 1255 | 1249 | 1282 | 1250 | 1281 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 775 | 789 | 784 | 818 | 782 | 809 |
| Υγρασία/Ορατότητα | 172 | 166 | 196 | 195 | 188 | 187 |
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. |
