May 16 | Weekly Markets and Climate Review
The second full week in May brought summer heat to the Midwest. Average temperatures this week ranged from the high 50s in northern Illinois to the low 70s in southern Illinois, between 2 and 8 degrees above normal. Significant early season heat late in the week was noteworthy, as temperatures reached into the low to mid 90s statewide. Combined with high humidity, heat index values approached the triple digits. Thursday’s high of 93 degrees broke the previous May 15th record at O’Hare Airport,…