Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 121 | 108 | 120 | 142 | 148 | 147 |
| Tmin | 122 | 105 | 116 | 134 | 152 | 142 |
| Durata del soleggiamento | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitazione | 124 | 112 | 124 | 149 | 155 | 154 |
| Umidità/Visibilità | 122 | 111 | 122 | 141 | 152 | 147 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 151 | 148 | 147 | 141 | 147 | 153 |
| Tmin | 151 | 151 | 143 | 141 | 147 | 149 |
| Durata del soleggiamento | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitazione | 156 | 156 | 152 | 152 | 150 | 157 |
| Umidità/Visibilità | 153 | 151 | 147 | 147 | 148 | 152 |
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. |
