Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 63 | 40 | 52 | 50 | 57 | 44 |
| Tmin | 69 | 52 | 55 | 53 | 61 | 54 |
| Durata del soleggiamento | 72 | 53 | 59 | 56 | 61 | 54 |
| Precipitazione | 4 | 5 | 5 | 5 | 3 | 5 |
| Umidità/Visibilità | 109 | 98 | 112 | 103 | 112 | 106 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 57 | 77 | 58 | 54 | 56 | 57 |
| Tmin | 57 | 71 | 56 | 54 | 55 | 57 |
| Durata del soleggiamento | 55 | 75 | 60 | 54 | 56 | 59 |
| Precipitazione | 11 | 20 | 8 | 5 | 28 | 10 |
| Umidità/Visibilità | 110 | 128 | 133 | 126 | 102 | 114 |
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. |
