Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 2156 | 1952 | 2157 | 2090 | 2151 | 2084 |
| Tmin | 2164 | 1957 | 2163 | 2091 | 2152 | 2095 |
| Διάρκεια Ηλιοφάνειας | 62 | 57 | 62 | 60 | 124 | 150 |
| Υετός | 187 | 169 | 187 | 181 | 186 | 180 |
| Υγρασία/Ορατότητα | 184 | 165 | 183 | 176 | 179 | 175 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 2155 | 2162 | 2115 | 2187 | 2118 | 2182 |
| Tmin | 2167 | 2164 | 2122 | 2190 | 2123 | 2183 |
| Διάρκεια Ηλιοφάνειας | 155 | 93 | 90 | 93 | 60 | 62 |
| Υετός | 187 | 190 | 210 | 215 | 210 | 217 |
| Υγρασία/Ορατότητα | 178 | 181 | 201 | 205 | 203 | 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. |
