Rockford Weather Records

Rockford, Illinois weather averages and records from 1893–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Rockford, Illinois was 112 °F which occurred on July 14, 1936.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Rockford, Illinois was -31 °F which occurred on January 31, 2019.
Lowest Temperatures: All-Time By Year
Rockford Weather by Month
Averages based on the years 1991–2020
Month Average (°F) Record (°F) Average (inches)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧 Snow ❄️
January 29.2 13.9 63 -31 1.6 10.7
February 33.6 17.2 78 -25 1.6 8.9
March 46.6 27.6 85 -11 2.4 4.9
April 59.8 37.9 93 5 3.7 0.8
May 71.3 49.0 106 24 4.2 0.0
June 80.8 59.1 106 35 5.2 0.0
July 84.0 63.1 112 43 3.8 0.0
August 82.1 61.2 104 35 4.2 0.0
September 75.4 53.0 103 24 3.6 0.0
October 62.4 41.2 91 7 2.6 0.2
November 47.2 30.0 81 -10 2.3 2.3
December 34.4 19.7 69 -24 1.9 9.0
Entire year 59.0 39.5 112 -31 37.2 37.9
More Rockford Weather Records
1893–2024
Highest daily low 80 °F July 19, 2019
Lowest daily high -14 °F January 18, 1994
Greatest daily range
(Difference of high and low)
52 °F March 23, 1939
Greatest difference in daily high
over two conscutive days
50 °F Jan 18–19, 1996
Most daily precipitation 5.7 inches August 14, 1987
Most monthly precipitation 14.2 inches June 2018
Most yearly precipitation 56.5 inches 1973
Most yearly days with precipitation 149 2019
Earliest snow in season October 12 1909
Latest snow in season May 11 1966
Most daily snow 13.5 inches March 31, 1926
Most monthly snow 32.0 inches January 1943
Most yearly snow 84.3 inches 2008
Most snow in a winter 74.5 inches 1978–1979
Greatest snow accumulation 27.0 inches January 16, 1979
Earliest freeze September 14 1923
Earliest day ≥ 80 °F March 15 2012
Earliest day ≥ 90 °F April 10 1930
Earliest day ≥ 100 °F May 31 1934
Latest freeze May 27 1992
Latest day ≥ 80 °F November 1 1933
Latest day ≥ 90 °F October 9 2010
Latest day ≥ 100 °F September 15 1939
Most days in a year < 0 °F 45 1963
Most days in a year < 32 °F 165 1976
Most days in a year ≥ 80 °F 127 1895
Most days in a year ≥ 90 °F 62 1921
Most days in a year ≥ 100 °F 15 1936
Most days in a year ≥ 110 °F 2 1936
Rockford Weather Streaks
Most consecutive days...
With precipitation 10 days Jun 5–14, 1955
Without precipitation 39 days Feb 9 – Mar 19, 1969
With snow 9 days Jan 6–14, 2024
High temperature at or
below freezing
46 days Jan 9 – Feb 23, 1978
High temperature ≥ 80 °F 86 days Jun 6 – Aug 30, 1895
High temperature ≥ 90 °F 21 days Jun 28 – Jul 18, 1921
High temperature ≥ 100 °F 9 days Jul 6–14, 1936
Plant Hardiness Zone
5B
Rockford is in plant hardiness zone 5B
based on average yearly minimum temperature from 1991–2020
Rockford Weather by Year
More Rockford Weather
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Weather Station Details
Years Station Coordinates
1951–2024 Greater Rockford Airport location
1893–1950 Rockford location