Severe Thunderstorms in the Southern Plains; Heavy to Excessive Rainfall in South Central Texas

Widespread rain may produce flash flooding across the Southern Plains into the Ozarks today. Numerous instances of flash flooding are expected in south-central Texas, including the Hill Country. There will also be a risk of isolated severe thunderstorms across the southern Plains today, where an instance or two of severe wind, hail, or a brief tornado may occur. Read More >

4th of July Weather for Northern Illinois: Statistics for Chicago and Rockford

Chicago:
The following statistics comprises 145 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 July 4th's from 1872-Present, click here.

Frequency distribution of high temperatures for Chicago. This dataset shows that the most frequent range of high temperatures on the 4^th of July is in between 80 and 89 degrees, which is the warmest of all the holidays. The normal high for the 4^th is 84 degrees, which falls in the range of the most frequent highs. The record high is 102 degrees set in 2012 and also 1911. The coldest high temperature on the 4^th is 62 degrees which occurred in 1920. In 2016, the high temperature was 79 degrees.

Frequency distribution of low temperatures for Chicago. This dataset shows that the most frequent range of low temperatures on the 4^th of July is in between 60 and 69 degrees, which is the warmest of all the holidays. The normal low for the 4^th is 63 degrees, which falls in the range of the most frequent lows. The record low is 50 which occurred in 1972. The highest low temperature for the 4^th was 80 degrees in 1921. In 2016, the low temperature was 66 degrees.

Frequency distribution of precipitation for Chicago. This dataset shows that the most frequent amount of precipitation recorded on the 4^th of July is 0.00”, which accounts for 49% of the days in the dataset. The next most frequent range is the 0.02” to 0.25”, closely followed by a trace of precipitation. The record amount of rainfall on the 4^th of July occurred in 1995 when 1.72” of rain fell. There have been 4 instances dating back to 1872 where over an inch of rain fell on the 4^th of July. In 2016 no rain fell.

ADDITIONAL 4th OF JULY CLIMATE DATA ( * MEANS LAST OCCURRENCE)

MAX TEMP WARMEST	MIN TEMP WARMEST	PCPN WETTEST
102 2012 *	80 1921	1.72 1995
98 1949	79 2012 *	1.60 1883
96 1990 *	78 1911 *	1.38 1873
95 1921 *	77 1990 *	1.02 1888
94 2003 *	75 1993 *	0.91 1942
93 1999	74 1994 *	0.90 1958
92 1955	73 2003 *	0.85 1899
91 2010 *	72 1955	0.74 1973
90 2002 *	71 1975 *	0.60 1915
89 2011 *	70 2004	0.48 1880

MAX TEMP COLDEST	MIN TEMP COLDEST	PCPN DRIEST
62 1920	50 1972	0.00 2016 *
63 1909 *	51 1996	T 2012 *
64 1967 *	52 2008 *	0.01 2004 *
65 1890	53 1967	0.03 1909 *
66 1997 *	55 1942 *	0.05 1992 *
67 1961	56 2013 *	0.06 1959
68 1972 *	57 1992 *	0.07 1956
69 1956 *	58 2014 *	0.08 1997 *
70 1872	59 2015 *	0.09 1991 *
71 1970 *	60 1986 *	0.10 2005 *

Updated 6/24/2017

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Severe Thunderstorms in the Southern Plains; Heavy to Excessive Rainfall in South Central Texas

Climate Data for Chicago and Rockford on the 4th of July