Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 2148 | 1943 | 2156 | 2089 | 2139 | 2082 |
| Tmin | 2157 | 1947 | 2164 | 2093 | 2139 | 2088 |
| Διάρκεια Ηλιοφάνειας | 93 | 86 | 93 | 90 | 155 | 180 |
| Υετός | 186 | 169 | 187 | 181 | 186 | 180 |
| Υγρασία/Ορατότητα | 184 | 166 | 184 | 177 | 182 | 177 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 2151 | 2155 | 2110 | 2188 | 2112 | 2188 |
| Tmin | 2162 | 2157 | 2115 | 2193 | 2124 | 2190 |
| Διάρκεια Ηλιοφάνειας | 186 | 155 | 150 | 124 | 90 | 93 |
| Υετός | 187 | 190 | 210 | 215 | 210 | 217 |
| Υγρασία/Ορατότητα | 181 | 183 | 204 | 207 | 205 | 216 |
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. |
