Three-Month Temperature Outlook
Issued: November 2017

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

 		DJF		JFM		FMA		MAM		AMJ		MJJ		JJA		JAS		ASO		SON		OND		NDJ		DJF		
Median		26.5		29.5		38.3		48.7		59.1		67.5		71.8		70.4		63.1		53.0		40.9		31.3		26.5		
99%		35.3/17.7	37.2/21.8	44.5/32.1	54.9/42.5	64.0/54.2	72.7/62.3	77.5/66.1	75.0/65.8	67.5/58.7	57.6/48.4	47.3/34.5	39.5/23.1	35.3/17.7