Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 217 | 196 | 217 | 210 | 217 | 210 |
| Tmin | 292 | 253 | 293 | 282 | 279 | 280 |
| Διάρκεια Ηλιοφάνειας | 53 | 50 | 53 | 44 | 31 | 38 |
| Υετός | 100 | 90 | 107 | 119 | 121 | 118 |
| Υγρασία/Ορατότητα | 28 | 16 | 23 | 25 | 24 | 26 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 217 | 217 | 210 | 217 | 210 | 217 |
| Tmin | 261 | 271 | 285 | 294 | 279 | 309 |
| Διάρκεια Ηλιοφάνειας | 32 | 39 | 52 | 62 | 52 | 76 |
| Υετός | 107 | 112 | 117 | 109 | 126 | 124 |
| Υγρασία/Ορατότητα | 15 | 16 | 24 | 23 | 21 | 33 |
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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