Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 727 | 675 | 749 | 729 | 736 | 728 |
| Tmin | 729 | 677 | 758 | 739 | 739 | 733 |
| Durata del soleggiamento | 217 | 254 | 217 | 240 | 186 | 210 |
| Precipitazione | 95 | 87 | 95 | 109 | 124 | 120 |
| Umidità/Visibilità | 92 | 83 | 91 | 104 | 123 | 119 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 752 | 751 | 713 | 769 | 752 | 774 |
| Tmin | 762 | 749 | 716 | 772 | 755 | 778 |
| Durata del soleggiamento | 248 | 217 | 180 | 248 | 180 | 217 |
| Precipitazione | 126 | 129 | 120 | 124 | 120 | 124 |
| Umidità/Visibilità | 122 | 121 | 118 | 117 | 118 | 124 |
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. |
