Number of days available for climatic review
| Parametro | Gen | Feb | Mar | Apr | Mag | Giu |
| Tmax | 389 | 347 | 386 | 376 | 393 | 399 |
| Tmin | 388 | 345 | 384 | 375 | 392 | 391 |
| Durata del soleggiamento | 186 | 196 | 155 | 150 | 217 | 210 |
| Precipitazione | 95 | 89 | 98 | 96 | 97 | 104 |
| Umidità/Visibilità | 89 | 80 | 88 | 86 | 91 | 99 |
| Parametro | Lug | Ago | Set | Ott | Nov | Dic |
| Tmax | 426 | 428 | 414 | 418 | 407 | 412 |
| Tmin | 421 | 427 | 412 | 419 | 403 | 404 |
| Durata del soleggiamento | 248 | 279 | 210 | 248 | 120 | 155 |
| Precipitazione | 132 | 131 | 123 | 123 | 122 | 125 |
| Umidità/Visibilità | 118 | 119 | 116 | 115 | 116 | 122 |
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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