Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 503 | 461 | 514 | 500 | 519 | 488 |
| Tmin | 515 | 466 | 518 | 504 | 525 | 503 |
| Durata del soleggiamento | 126 | 120 | 130 | 128 | 133 | 128 |
| Precipitazione | 164 | 146 | 168 | 166 | 175 | 180 |
| Umidità/Visibilità | 141 | 131 | 143 | 134 | 133 | 128 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 513 | 537 | 538 | 541 | 519 | 485 |
| Tmin | 518 | 538 | 550 | 553 | 531 | 492 |
| Durata del soleggiamento | 134 | 149 | 181 | 154 | 99 | 94 |
| Precipitazione | 176 | 202 | 244 | 215 | 214 | 182 |
| Umidità/Visibilità | 129 | 144 | 172 | 180 | 153 | 135 |
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. |
