Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 942 | 868 | 959 | 900 | 922 | 896 |
| Tmin | 945 | 866 | 956 | 899 | 926 | 894 |
| Διάρκεια Ηλιοφάνειας | 182 | 158 | 179 | 170 | 180 | 174 |
| Υετός | 188 | 168 | 186 | 183 | 190 | 180 |
| Υγρασία/Ορατότητα | 176 | 159 | 169 | 163 | 169 | 177 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 910 | 926 | 942 | 981 | 952 | 989 |
| Tmin | 912 | 925 | 940 | 976 | 952 | 992 |
| Διάρκεια Ηλιοφάνειας | 182 | 181 | 204 | 202 | 202 | 213 |
| Υετός | 186 | 190 | 218 | 217 | 212 | 217 |
| Υγρασία/Ορατότητα | 183 | 184 | 204 | 208 | 204 | 214 |
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. |
