Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 77 | 68 | 69 | 72 | 88 | 102 |
| Tmin | 75 | 64 | 74 | 73 | 83 | 93 |
| Durata del soleggiamento | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitazione | 95 | 89 | 98 | 99 | 97 | 106 |
| Umidità/Visibilità | 90 | 82 | 87 | 86 | 90 | 99 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 111 | 116 | 117 | 107 | 97 | 97 |
| Tmin | 114 | 112 | 113 | 109 | 102 | 100 |
| Durata del soleggiamento | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitazione | 129 | 128 | 121 | 120 | 120 | 128 |
| Umidità/Visibilità | 119 | 119 | 116 | 115 | 116 | 122 |
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. |
