Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Chicago, IL
Rockford, IL

4th of July Climate History for Chicago, IL

The following statistics comprises 148 years of data. Data collection began at the University of Chicago, then at Midway, and currently at O'Hare which is now the official station for Chicago.

To see the daily climate data for Chicago for 4th of July from 1872-Present, click here.

4th of July High Temperatures in Chicago

WARMEST HIGHS	COLDEST HIGHS
102 in 2012 *	62 in 1920
98 in 1949	63 in 1909 *
96 in 1990 *	64 in 1967 *
95 in 1921 *	65 in 1890
94 in 2003 *	66 in 1997 *
93 in 2018 *	67 in 1961
92 in 1955	68 in 1972 *
91 in 2019 *	69 in 1956 *
90 in 2002 *	70 in 1872
89 in 2011 *	71 in 1970 *

*Denotes a tie in previous year(s)

4th of July low temperatures in Chicago

WARMEST LOWS	COLDEST LOWS
80 in 1921	50 in 1972
79 in 2012 *	51 in 1996
78 in 1911 *	52 in 2008 *
77 in 1990 *	53 in 1967
76 in 2018	55 in 1942 *
75 in 1993 *	56 in 2013 *
74 in 1994 *	57 in 1992 *
73 in 2003 *	58 in 2014 *
72 in 1955	59 in 2015*
71 in 1975 *	60 in 1986*

*Denotes a tie in previous year(s)

4th of July Precipitation in Chicago

WETTEST

1.72" in 1995

1.60" in 1883

1.38" in 1873

1.02" in 1888

0.91" in 1942

0.90" in 1958

0.85" in 1899

0.74" in 1973

0.60" in 1915

0.48" in 1880

*Denotes a tie in previous year(s)

4th of July Climate History for Rockford, IL

The following statistics comprises 114 years of data. Data collection for Rockford was at the Greater Rockford Airport. Data is missing from 1920 and 1946.

To see the daily climate data for Rockford for 4th of July from 1905-Present, click here.

4th of July High Temperatures for Rockford

WARMEST HIGHS	COLDEST HIGHS
102 in 2012	62 in 1967
101 in 1911	66 in 1961 *
100 in 1921	68 in 1972
96 in 1949	69 in 1997 *
95 in 1990 *	70 in 2009 *
94 in 1977 *	73 in 1920 *
93 in 2002 *	74 in 1998 *
92 in 1999 *	75 in 1956 *
91 in 2003 *	76 in 1932
90 in 2018 *	77 in 2005 *

*Denotes a tie in previous year(s)

4th of July Low Temperatures for Rockford

WARMEST LOWS	COLDEST LOWS
77 in 1977	46 in 1967 *
76 in 1999	48 in 1940 *
75 in 2012	49 in 1941 *
73 in 2018 *	50 in 1972 *
72 in 1955 *	51 in 2008 *
71 in 1966 *	52 in 2014 *
70 in 2003 *	53 in 1916 *
69 in 2004 *	54 in 1907
68 in 2002 *	55 in 1997 *
67 in 2010*	56 in 2013 *