Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 3429 | 3095 | 3430 | 3320 | 3413 | 3313 |
| Tmin | 3437 | 3106 | 3437 | 3325 | 3412 | 3314 |
| Διάρκεια Ηλιοφάνειας | 62 | 57 | 62 | 60 | 124 | 150 |
| Υετός | 186 | 169 | 187 | 181 | 186 | 180 |
| Υγρασία/Ορατότητα | 184 | 166 | 184 | 177 | 181 | 177 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 3427 | 3429 | 3348 | 3457 | 3348 | 3462 |
| Tmin | 3429 | 3424 | 3353 | 3464 | 3351 | 3468 |
| Διάρκεια Ηλιοφάνειας | 155 | 124 | 120 | 93 | 60 | 62 |
| Υετός | 188 | 190 | 210 | 215 | 210 | 217 |
| Υγρασία/Ορατότητα | 182 | 183 | 205 | 209 | 205 | 214 |
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. |
