Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 1046 | 958 | 1056 | 1025 | 1085 | 1054 |
| Tmin | 1048 | 954 | 1056 | 1032 | 1088 | 1058 |
| Durata del soleggiamento | 124 | 169 | 186 | 210 | 186 | 240 |
| Precipitazione | 93 | 85 | 94 | 108 | 124 | 120 |
| Umidità/Visibilità | 92 | 84 | 92 | 104 | 123 | 119 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 1061 | 1067 | 1022 | 1083 | 1065 | 1085 |
| Tmin | 1066 | 1066 | 1024 | 1085 | 1062 | 1089 |
| Durata del soleggiamento | 217 | 217 | 210 | 186 | 180 | 186 |
| Precipitazione | 127 | 127 | 120 | 122 | 120 | 124 |
| Umidità/Visibilità | 123 | 121 | 118 | 117 | 118 | 124 |
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. |
