Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 1142 | 1062 | 1177 | 1139 | 1176 | 1137 |
| Tmin | 1143 | 1065 | 1176 | 1138 | 1177 | 1139 |
| Durata del soleggiamento | 395 | 363 | 431 | 448 | 367 | 418 |
| Precipitazione | 186 | 169 | 187 | 181 | 188 | 180 |
| Umidità/Visibilità | 181 | 166 | 184 | 179 | 184 | 179 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 1168 | 1169 | 1168 | 1201 | 1165 | 1168 |
| Tmin | 1169 | 1167 | 1167 | 1201 | 1167 | 1167 |
| Durata del soleggiamento | 355 | 453 | 443 | 445 | 416 | 433 |
| Precipitazione | 184 | 190 | 212 | 215 | 212 | 195 |
| Umidità/Visibilità | 177 | 175 | 207 | 206 | 193 | 187 |
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. |
