Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 459 | 410 | 461 | 443 | 457 | 445 |
| Tmin | 459 | 416 | 457 | 443 | 463 | 444 |
| Durata del soleggiamento | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitazione | 155 | 141 | 155 | 150 | 157 | 150 |
| Umidità/Visibilità | 148 | 129 | 145 | 139 | 148 | 147 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 459 | 451 | 445 | 454 | 444 | 454 |
| Tmin | 455 | 448 | 443 | 454 | 441 | 451 |
| Durata del soleggiamento | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitazione | 155 | 157 | 154 | 153 | 150 | 157 |
| Umidità/Visibilità | 147 | 138 | 142 | 145 | 141 | 142 |
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. |
