Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1139 | 1035 | 1144 | 1115 | 1174 | 1138 |
| Tmin | 1111 | 1008 | 1114 | 1095 | 1144 | 1109 |
| Διάρκεια Ηλιοφάνειας | 82 | 76 | 85 | 88 | 119 | 113 |
| Υετός | 93 | 89 | 97 | 114 | 131 | 122 |
| Υγρασία/Ορατότητα | 86 | 80 | 87 | 96 | 116 | 115 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1171 | 1171 | 1137 | 1168 | 1135 | 1169 |
| Tmin | 1143 | 1146 | 1108 | 1142 | 1103 | 1144 |
| Διάρκεια Ηλιοφάνειας | 117 | 114 | 111 | 106 | 106 | 111 |
| Υετός | 127 | 127 | 124 | 127 | 128 | 126 |
| Υγρασία/Ορατότητα | 119 | 119 | 116 | 111 | 110 | 118 |
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. |
