Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 1267 | 1150 | 1265 | 1225 | 1267 | 1220 |
| Tmin | 1240 | 1124 | 1237 | 1195 | 1238 | 1194 |
| Durata del soleggiamento | 186 | 169 | 186 | 240 | 186 | 180 |
| Precipitazione | 186 | 169 | 186 | 179 | 186 | 177 |
| Umidità/Visibilità | 167 | 151 | 164 | 156 | 161 | 157 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 1262 | 1271 | 1256 | 1296 | 1257 | 1271 |
| Tmin | 1235 | 1241 | 1224 | 1267 | 1227 | 1264 |
| Durata del soleggiamento | 155 | 186 | 240 | 217 | 120 | 124 |
| Precipitazione | 187 | 189 | 210 | 215 | 212 | 191 |
| Umidità/Visibilità | 161 | 167 | 184 | 184 | 186 | 184 |
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. |
