Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 672 | 607 | 670 | 646 | 671 | 643 |
| Tmin | 561 | 511 | 558 | 545 | 561 | 545 |
| Durata del soleggiamento | 0 | 56 | 31 | 30 | 31 | 30 |
| Precipitazione | 132 | 115 | 126 | 123 | 127 | 125 |
| Umidità/Visibilità | 110 | 103 | 111 | 104 | 111 | 107 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 671 | 672 | 640 | 664 | 644 | 661 |
| Tmin | 560 | 567 | 543 | 560 | 540 | 560 |
| Durata del soleggiamento | 62 | 31 | 30 | 31 | 60 | 62 |
| Precipitazione | 129 | 129 | 120 | 126 | 130 | 132 |
| Umidità/Visibilità | 111 | 111 | 103 | 101 | 103 | 113 |
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. |
