Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 729 | 652 | 727 | 697 | 723 | 708 |
| Tmin | 720 | 652 | 728 | 696 | 716 | 708 |
| Durata del soleggiamento | 274 | 251 | 280 | 180 | 245 | 223 |
| Precipitazione | 580 | 527 | 576 | 554 | 586 | 581 |
| Umidità/Visibilità | 81 | 69 | 82 | 70 | 69 | 78 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 740 | 742 | 715 | 728 | 716 | 739 |
| Tmin | 731 | 733 | 709 | 728 | 713 | 744 |
| Durata del soleggiamento | 256 | 197 | 342 | 376 | 312 | 330 |
| Precipitazione | 629 | 629 | 608 | 631 | 598 | 150 |
| Umidità/Visibilità | 88 | 91 | 91 | 82 | 84 | 90 |
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. |
