Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 95 | 92 | 94 | 107 | 114 | 106 |
| Tmin | 88 | 82 | 96 | 104 | 116 | 104 |
| Διάρκεια Ηλιοφάνειας | 93 | 142 | 155 | 150 | 93 | 60 |
| Υετός | 166 | 145 | 160 | 206 | 188 | 184 |
| Υγρασία/Ορατότητα | 93 | 92 | 97 | 105 | 111 | 107 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 126 | 105 | 90 | 83 | 80 | 111 |
| Tmin | 122 | 106 | 91 | 81 | 80 | 101 |
| Διάρκεια Ηλιοφάνειας | 124 | 124 | 180 | 124 | 60 | 62 |
| Υετός | 191 | 184 | 159 | 185 | 198 | 209 |
| Υγρασία/Ορατότητα | 122 | 103 | 90 | 86 | 80 | 108 |
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. |
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