Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 680 | 615 | 682 | 656 | 682 | 658 |
| Tmin | 677 | 617 | 677 | 658 | 681 | 659 |
| Durata del soleggiamento | 327 | 279 | 329 | 294 | 369 | 386 |
| Precipitazione | 124 | 113 | 124 | 121 | 124 | 120 |
| Umidità/Visibilità | 122 | 111 | 121 | 116 | 123 | 119 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 679 | 677 | 656 | 669 | 644 | 680 |
| Tmin | 676 | 678 | 653 | 671 | 647 | 679 |
| Durata del soleggiamento | 337 | 368 | 325 | 301 | 283 | 303 |
| Precipitazione | 127 | 126 | 120 | 122 | 122 | 124 |
| Umidità/Visibilità | 122 | 121 | 116 | 117 | 118 | 123 |
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. |
