Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 1134 | 1029 | 1141 | 1104 | 1135 | 1095 |
| Tmin | 1135 | 1036 | 1143 | 1105 | 1141 | 1104 |
| Durata del soleggiamento | 303 | 332 | 364 | 385 | 335 | 351 |
| Precipitazione | 155 | 143 | 156 | 153 | 155 | 150 |
| Umidità/Visibilità | 150 | 138 | 152 | 147 | 152 | 146 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 1133 | 1143 | 1117 | 1159 | 1134 | 1169 |
| Tmin | 1131 | 1144 | 1123 | 1167 | 1130 | 1172 |
| Durata del soleggiamento | 360 | 456 | 446 | 424 | 410 | 367 |
| Precipitazione | 157 | 160 | 180 | 186 | 182 | 187 |
| Umidità/Visibilità | 152 | 152 | 174 | 176 | 176 | 182 |
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. |
