Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 1147 | 1036 | 1147 | 1125 | 1178 | 1140 |
| Tmin | 1145 | 1036 | 1145 | 1125 | 1177 | 1140 |
| Durata del soleggiamento | 124 | 113 | 124 | 120 | 124 | 120 |
| Precipitazione | 93 | 85 | 95 | 107 | 124 | 120 |
| Umidità/Visibilità | 92 | 84 | 92 | 104 | 123 | 119 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 1178 | 1177 | 1140 | 1174 | 1138 | 1178 |
| Tmin | 1174 | 1176 | 1139 | 1172 | 1139 | 1177 |
| Durata del soleggiamento | 124 | 124 | 120 | 124 | 120 | 124 |
| Precipitazione | 126 | 126 | 124 | 121 | 120 | 124 |
| Umidità/Visibilità | 122 | 122 | 118 | 118 | 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. |
