Rockford, IL Official Extreme Weather Records

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Christmas Climate Data for Chicago and Rockford

Last Updated: 7/13/2020

Temperature (in degrees Fahrenheit)
Highest Temperature	112 degrees on July 14, 1936
Lowest Temperature	-31 degrees on January 31, 2019

Warmest Month	80.6 degrees in August 1921
Coldest Month	4.7 degrees in January 1912

Warmest Season	76.1 degrees in Summer of 1921
Coldest Season	14.1 degrees in Winter of 1978-79

Warmest Year	52.8 degrees in 1921 and 1931
Coldest Year	44.9 degrees in 1917

Highest Dew Point	Missing for now

Precipitation (in inches)
Wettest Year	56.48 in 1973
Driest Year	22.87 in 1910

Wettest Season	25.76 Summer (Jun – Aug) of 1972
Driest Season	1.28 Winter (Dec – Feb) of 2002 - 2003

Wettest Month	14.23 in June 2018
Driest Month	0.01 in October 1952

Greatest in 24 Hours	7.43 on July 17 – 18, 1996
Greatest Calendar Day	5.70 on August 15, 1987

Snowfall (in inches)
Seasonal (Jul – Jun) Greatest	74.5 in 1978 - 1979
Seasonal (Jul – Jun) Least	2.8 in 1906 - 1907

Winter (Dec – Feb) Greatest	65.1 in 2007 – 2008
Winter (Dec – Feb) Least	1.3 in 1906 - 1907

Greatest Total:
Month	36.1 in January, 1918
Storm	16.3 on January 6 – 7, 1918
24 Hours	16.3 on January 6 – 7, 1918
Calendar Day	13.5 on March 31, 1926
Snow Depth	27 inches in January 1979

Pressure (in inches of Mercury)
Highest	30.98 on Feb 16, 1989 and Feb 1, 1979
Lowest	28.78 on April 3, 1982

Wind (in mph)
Highest Gust	Missing for now
Coldest Wind Chill	-72 on January 20, 1985

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