Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1381 | 1246 | 1390 | 1344 | 1390 | 1331 |
| Tmin | 1383 | 1250 | 1387 | 1345 | 1393 | 1344 |
| Διάρκεια Ηλιοφάνειας | 135 | 123 | 137 | 128 | 139 | 134 |
| Υετός | 155 | 141 | 155 | 151 | 155 | 150 |
| Υγρασία/Ορατότητα | 144 | 132 | 149 | 140 | 149 | 146 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1383 | 1408 | 1367 | 1405 | 1369 | 1383 |
| Tmin | 1385 | 1403 | 1367 | 1401 | 1365 | 1386 |
| Διάρκεια Ηλιοφάνειας | 142 | 154 | 161 | 140 | 108 | 139 |
| Υετός | 160 | 186 | 180 | 184 | 179 | 159 |
| Υγρασία/Ορατότητα | 147 | 161 | 166 | 160 | 149 | 148 |
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. |
