Peak Heat Index Values from Sunday

Oppressive dew point values in the lower 80s on Sunday, July 24, resulted in extreme levels of heat index across much of central and southeast Illinois. Here are some of the highest values reported in our area. Formal records of heat index are not kept, as this is a calculated item (based on temperature and relative humidity), rather than something that is directly measured with a weather instrument.

Peak heat index map from Sunday, July 24, 2016

Location	Heat Index	Time
Lincoln (Logan Co. Airport)	121	5:55 pm
Bondville	119	5:00 pm
Jacksonville Municipal Airport	116	4:15 pm
East Peoria	116	5:30 pm
Peoria Int'l Airport	116	4:54 pm
Springfield (Abraham Lincoln Capital Airport)	115	3:52 pm
Flora (airport)	114	3:35 pm
Taylorville (airport)	113	4:15 pm
Lacon (Marshall Co. Airport)	112	4:15 pm
Decatur Airport	112	3:54 pm
Galesburg Municipal Airport	111	3:15 pm
Effingham (airport)	111	4:55 pm
Danville (Vermilion Regional Airport)	111	3:35 pm
Bloomington (Central Illinois Regional Airport)	110	12:50 pm
Paris (Edgar Co. Airport)	109	4:15 pm
Olney-Noble Airport	109	5:35 pm
Rantoul (airport)	108	1:35 pm
Robinson (Crawford Co. Airport)	108	5:15 pm
Lawrenceville-Vincennes Int'l Airport	108	4:53 pm
Mount Carmel (airport)	108	3:35 pm
Champaign (Willard Airport)	105	2:53 pm
Mattoon (Coles Co. Airport)	102	5:53 pm