Number of days available for climatic review
| Παράμετρος | Ιαν | Φεβ | Μαρ | Απρ | Ιουν | Ιουλ |
| Tmax | 1253 | 1149 | 1265 | 1227 | 1260 | 1223 |
| Tmin | 1251 | 1147 | 1263 | 1218 | 1254 | 1211 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 186 | 169 | 187 | 181 | 186 | 180 |
| Υγρασία/Ορατότητα | 174 | 155 | 172 | 164 | 170 | 162 |
| Παράμετρος | Αυγ | Σεπ | Οκτ | Νοε | Δεκ | (null) |
| Tmax | 1265 | 1267 | 1245 | 1290 | 1254 | 1273 |
| Tmin | 1246 | 1258 | 1239 | 1280 | 1248 | 1271 |
| Διάρκεια Ηλιοφάνειας | 0 | 0 | 0 | 0 | 0 | 0 |
| Υετός | 188 | 191 | 207 | 214 | 210 | 191 |
| Υγρασία/Ορατότητα | 169 | 170 | 179 | 186 | 182 | 182 |
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. |
