Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 1193 | 1112 | 1237 | 1196 | 1221 | 1198 |
| Tmin | 1008 | 947 | 1053 | 1020 | 1038 | 1020 |
| Durata del soleggiamento | 217 | 254 | 248 | 210 | 248 | 240 |
| Precipitazione | 186 | 165 | 186 | 178 | 183 | 178 |
| Umidità/Visibilità | 184 | 167 | 184 | 178 | 184 | 178 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 1237 | 1236 | 1214 | 1259 | 1226 | 1270 |
| Tmin | 1055 | 1054 | 1006 | 1050 | 1020 | 1054 |
| Durata del soleggiamento | 279 | 310 | 270 | 279 | 270 | 93 |
| Precipitazione | 185 | 185 | 208 | 211 | 207 | 216 |
| Umidità/Visibilità | 183 | 184 | 206 | 210 | 206 | 213 |
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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