Frost line depth in La Crosse County, WI
How deep the ground freezes in La Crosse County, WI
46 in. Dig to 47 in, just below the frost. Nearest NOAA station: La Crosse Wfo, 7.1 mi.
Your building department sets the legal frost line depth (IRC Table R301.2(1)); footings must go below it (R403.1.4.1). Call them before you dig.