Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 833 | 752 | 831 | 781 | 801 | 777 |
| Tmin | 836 | 751 | 835 | 780 | 804 | 778 |
| Durata del soleggiamento | 306 | 241 | 275 | 234 | 240 | 236 |
| Precipitazione | 188 | 170 | 186 | 185 | 188 | 180 |
| Umidità/Visibilità | 181 | 164 | 181 | 175 | 182 | 176 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 797 | 757 | 740 | 744 | 720 | 744 |
| Tmin | 806 | 757 | 737 | 742 | 719 | 744 |
| Durata del soleggiamento | 243 | 225 | 194 | 215 | 204 | 212 |
| Precipitazione | 186 | 194 | 214 | 217 | 216 | 219 |
| Umidità/Visibilità | 179 | 180 | 199 | 206 | 203 | 213 |
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. |
