Three-Month Temperature Outlook
Issued: April 2015

CHICAGO OHARE INTL AP, IL
COOK County, Coop ID: 111549 Elevation: 658 ft. Latitude: 41° 59' N Longitude: 87° 56' W

Temperature Range for 99% Confidence Interval

 		MJJ		JJA		JAS		ASO		SON		OND		NDJ		DJF		JFM		FMA		MAM		AMJ		MJJ		
Median		67.4		71.8		69.9		62.8		52.5		40.2		30.6		26.5		29.9		38.4		48.7		59.0		67.4		
99%		72.6/62.2	77.5/66.1	74.5/65.3	67.2/58.4	57.1/47.9	46.6/33.8	38.8/22.4	35.3/17.7	37.6/22.2	44.6/32.2	54.9/42.5	63.9/54.1	72.6/62.2