Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 862 | 810 | 900 | 891 | 913 | 866 |
| Tmin | 911 | 842 | 942 | 929 | 967 | 920 |
| Διάρκεια Ηλιοφάνειας | 103 | 83 | 195 | 148 | 191 | 164 |
| Υετός | 124 | 119 | 125 | 145 | 159 | 149 |
| Υγρασία/Ορατότητα | 58 | 71 | 85 | 102 | 109 | 95 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 895 | 889 | 867 | 900 | 899 | 924 |
| Tmin | 960 | 972 | 943 | 948 | 909 | 957 |
| Διάρκεια Ηλιοφάνειας | 187 | 196 | 251 | 107 | 130 | 179 |
| Υετός | 153 | 157 | 158 | 157 | 156 | 157 |
| Υγρασία/Ορατότητα | 102 | 105 | 111 | 97 | 99 | 112 |
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. |
