DEMOGRAPHICS / CLIMATE

Chicago Southland is characterized by the warm summers and cold winters associated with a Midwestern climate in close proximity to the Great Lakes. Changes in the weather can be sudden and strong breezes are common in late fall and early spring. The lowest temperatures occur when air flows southward to Lake Superior before moving into Northwest Indiana. The higher temperatures occur during the summer months when the air flow is from the south or southwest.

Temperatures & Precipitation

Northwest Indiana
Average winter temperature       25 F
Average summer temperature    74 F
Annual total rain                        35 inches
Annual total snow                      39 inches

South Chicago Suburbs
Average winter temperature       26 F
Average summer temperature    75 F
Average annual rainfall              33 inches
Average annual snowfall            39 inches