Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 316 | 282 | 317 | 310 | 323 | 308 |
| Tmin | 316 | 283 | 323 | 323 | 328 | 316 |
| Durata del soleggiamento | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitazione | 93 | 87 | 95 | 109 | 124 | 120 |
| Umidità/Visibilità | 92 | 83 | 92 | 103 | 122 | 119 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 317 | 316 | 308 | 339 | 333 | 341 |
| Tmin | 324 | 314 | 307 | 339 | 332 | 345 |
| Durata del soleggiamento | 0 | 0 | 0 | 0 | 0 | 0 |
| Precipitazione | 127 | 129 | 120 | 122 | 120 | 124 |
| Umidità/Visibilità | 122 | 121 | 118 | 117 | 117 | 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. |
