Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 1201 | 1100 | 1216 | 1172 | 1213 | 1189 |
| Tmin | 1196 | 1094 | 1206 | 1183 | 1207 | 1194 |
| Durata del soleggiamento | 348 | 169 | 288 | 281 | 285 | 315 |
| Precipitazione | 829 | 752 | 836 | 827 | 878 | 818 |
| Umidità/Visibilità | 105 | 92 | 101 | 105 | 115 | 121 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 1212 | 1205 | 1185 | 1228 | 1183 | 1243 |
| Tmin | 1208 | 1206 | 1183 | 1220 | 1180 | 1241 |
| Durata del soleggiamento | 186 | 224 | 269 | 250 | 210 | 263 |
| Precipitazione | 852 | 866 | 828 | 856 | 836 | 857 |
| Umidità/Visibilità | 112 | 104 | 123 | 113 | 105 | 129 |
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. |
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