Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1159 | 1060 | 1224 | 1189 | 1218 | 1191 |
| Tmin | 1132 | 1029 | 1195 | 1157 | 1189 | 1154 |
| Διάρκεια Ηλιοφάνειας | 62 | 28 | 62 | 60 | 62 | 30 |
| Υετός | 155 | 140 | 180 | 176 | 186 | 177 |
| Υγρασία/Ορατότητα | 132 | 123 | 152 | 157 | 165 | 157 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1220 | 1200 | 1174 | 1225 | 1194 | 1202 |
| Tmin | 1186 | 1174 | 1144 | 1187 | 1168 | 1203 |
| Διάρκεια Ηλιοφάνειας | 62 | 62 | 0 | 62 | 60 | 62 |
| Υετός | 185 | 187 | 206 | 197 | 206 | 188 |
| Υγρασία/Ορατότητα | 168 | 170 | 179 | 170 | 176 | 165 |
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. |
