Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 82 | 64 | 84 | 82 | 89 | 73 |
| Tmin | 96 | 73 | 87 | 81 | 89 | 81 |
| Durata del soleggiamento | 103 | 78 | 90 | 86 | 91 | 83 |
| Precipitazione | 157 | 140 | 175 | 169 | 165 | 149 |
| Umidità/Visibilità | 139 | 125 | 135 | 117 | 119 | 130 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 87 | 104 | 88 | 82 | 80 | 85 |
| Tmin | 84 | 100 | 86 | 83 | 74 | 85 |
| Durata del soleggiamento | 86 | 104 | 88 | 83 | 80 | 85 |
| Precipitazione | 157 | 192 | 201 | 186 | 168 | 166 |
| Umidità/Visibilità | 110 | 131 | 158 | 157 | 128 | 143 |
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. |
