Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 785 | 714 | 794 | 773 | 799 | 768 |
| Tmin | 791 | 717 | 793 | 775 | 802 | 772 |
| Durata del soleggiamento | 371 | 366 | 411 | 325 | 413 | 430 |
| Precipitazione | 161 | 143 | 154 | 151 | 156 | 150 |
| Umidità/Visibilità | 131 | 123 | 137 | 133 | 139 | 135 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 798 | 819 | 789 | 807 | 796 | 772 |
| Tmin | 792 | 809 | 788 | 810 | 796 | 772 |
| Durata del soleggiamento | 338 | 361 | 409 | 436 | 302 | 323 |
| Precipitazione | 159 | 186 | 182 | 183 | 180 | 162 |
| Umidità/Visibilità | 138 | 155 | 152 | 154 | 151 | 138 |
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. |
