Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 61 | 57 | 59 | 74 | 73 | 65 |
| Tmin | 61 | 56 | 61 | 72 | 84 | 83 |
| Durata del soleggiamento | 59 | 53 | 61 | 71 | 79 | 81 |
| Precipitazione | 63 | 58 | 62 | 76 | 93 | 90 |
| Umidità/Visibilità | 61 | 56 | 60 | 74 | 78 | 74 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 89 | 91 | 70 | 62 | 55 | 75 |
| Tmin | 85 | 90 | 83 | 81 | 65 | 76 |
| Durata del soleggiamento | 82 | 89 | 83 | 74 | 61 | 74 |
| Precipitazione | 97 | 99 | 92 | 93 | 100 | 104 |
| Umidità/Visibilità | 90 | 90 | 74 | 71 | 62 | 77 |
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. |
