Superheated July matches whole summer's 90-degree days By JESSE GARZA and TOM HELDof the Journal Sentinel staff Last Updated: July 31, 2002 Much of Wisconsin remained in the grip of sweltering heat Wednesday, ending a month in which Milwaukee saw the mercury reach 90 degrees nine different days, about the same number of days above 90 the state's largest city sees during a typical summer. Even upstate, in Chippewa Falls, it got so hot Tuesday that a traveling load of yeast-filled pizza dough expanded, breaking out the back of a semitrailer truck and creating a 25- to 35-mile oozing, intermittent...