Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 743 | 671 | 715 | 719 | 742 | 719 |
| Tmin | 741 | 671 | 718 | 720 | 742 | 716 |
| Durata del soleggiamento | 248 | 197 | 217 | 240 | 155 | 210 |
| Precipitazione | 94 | 87 | 95 | 126 | 124 | 120 |
| Umidità/Visibilità | 91 | 84 | 65 | 88 | 90 | 88 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 767 | 773 | 746 | 771 | 749 | 772 |
| Tmin | 769 | 775 | 749 | 770 | 744 | 775 |
| Durata del soleggiamento | 186 | 217 | 240 | 248 | 240 | 124 |
| Precipitazione | 127 | 128 | 123 | 122 | 122 | 126 |
| Umidità/Visibilità | 118 | 121 | 117 | 116 | 117 | 123 |
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. |
