Wine quality = 12.145 + 0.00117 winter rainfall + 0.0614 average growing season temperature - 0.00386 harvest rainfall This is the formula developed by Orley A

Wine quality = 12.145 + 0.00117 winter rainfall + 0.0614 average growing season temperature - 0.00386 harvest rainfall This is the formula developed by Orley Ashenfelter to predict the quality of wine, as described in the book Super Crunchers by Ian Ayres. It is the Moneyball of wine and he claims it does just as well as experts.