Three-Month Temperature Outlook
Issued: April 2013

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		67.5		72.2		70.8		63.3		52.7		40.3		30.9		26.8		30.0		38.5		48.7		59.0		67.4		
99%		72.7/62.3	77.9/66.5	75.4/66.2	67.7/58.9	57.3/48.1	46.7/33.9	39.1/22.7	35.6/18.0	37.7/22.3	44.7/32.3	54.9/42.5	63.9/54.1	72.6/62.2