Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 490 | 436 | 492 | 469 | 481 | 465 |
| Tmin | 479 | 439 | 490 | 467 | 489 | 472 |
| Durata del soleggiamento | 62 | 29 | 62 | 30 | 62 | 60 |
| Precipitazione | 189 | 169 | 186 | 181 | 184 | 180 |
| Umidità/Visibilità | 175 | 155 | 176 | 160 | 162 | 164 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 485 | 491 | 480 | 481 | 475 | 491 |
| Tmin | 488 | 485 | 477 | 481 | 472 | 490 |
| Durata del soleggiamento | 62 | 93 | 90 | 62 | 30 | 31 |
| Precipitazione | 188 | 190 | 211 | 220 | 209 | 221 |
| Umidità/Visibilità | 166 | 166 | 172 | 190 | 193 | 203 |
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. |
