Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 97 | 78 | 89 | 99 | 88 | 83 |
| Tmin | 99 | 78 | 86 | 96 | 84 | 78 |
| Durata del soleggiamento | 186 | 112 | 186 | 210 | 155 | 240 |
| Precipitazione | 146 | 118 | 141 | 175 | 169 | 176 |
| Umidità/Visibilità | 113 | 102 | 110 | 126 | 139 | 135 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 73 | 77 | 86 | 70 | 54 | 61 |
| Tmin | 74 | 77 | 82 | 67 | 53 | 59 |
| Durata del soleggiamento | 248 | 217 | 210 | 217 | 210 | 186 |
| Precipitazione | 186 | 166 | 167 | 161 | 130 | 138 |
| Umidità/Visibilità | 134 | 122 | 131 | 131 | 105 | 118 |
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. |
