Rockford, IL: records

4 October 2026: The hottest day on record in Rockford, IL: 112°F on Tuesday 14 July 1936.

The record begins: 1893

All-time records

Hottest day: 112°F; 14 July 1936
Coldest night: -31°F; 31 January 2019
Wettest day: 5.70 in; 14 August 1987
Warmest night: 80°F; 19 July 2019, 6 August 1918
Coldest day: -14°F; 18 January 1994, 6 January 1912

Daily records by decade

New daily records set in Rockford, IL by decade since the 1920s: the most record highs, 142, came in the 1930s; the most record lows, 61, in the 1930s.

Record highs
Record lows

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1890s	0	0	7
1900s	0	0	10
1910s	0	0	10
1920s	4	15	10
1930s	142	61	10
1940s	48	53	10
1950s	41	50	10
1960s	17	52	10
1970s	27	51	10
1980s	44	54	10
1990s	27	20	10
2000s	24	17	10
2010s	34	14	10
2020s	34	4	7

Records by month

Month	Highest	Lowest	Wettest day
January	63°F 7 January 2008, 31 January 1989	-31°F 31 January 2019	2.46 in 12 January 1960
February	78°F 27 February 2024	-25°F 9 February 1933	1.65 in 9 February 1966
March	85°F 29 March 1986	-11°F 3 March 2014, 4 March 2002, 1 March 1962	2.50 in 4 March 1976
April	93°F 10 April 1930	5°F 7 April 1982	3.38 in 21 April 1973
May	106°F 31 May 1934	24°F 10 May 1966	4.77 in 28 May 1996
June	106°F 1 June 1934	35°F 5 June 1945, 4 June 1945	4.67 in 14 June 1926
July	112°F 14 July 1936	43°F 5 July 1967, 21 July 1944, 31 July 1918	4.99 in 8 July 1951
August	104°F 16 August 1988, 5 August 1918	35°F 30 August 1915	5.70 in 14 August 1987
September	103°F 7 September 1939	24°F 28 September 1942	5.56 in 13 September 1961
October	91°F 2 October 1922	7°F 30 October 1925	4.78 in 10 October 1954
November	81°F 1 November 1933	-10°F 26 November 1977	2.70 in 17 November 1928
December	69°F 15 December 2021, 3 December 2012	-24°F 24 December 1983	2.33 in 30 December 1936

Streaks, months and years

Longest heat streak	21 days	28 June to 18 July 1921	A high of 90°F or above
Longest cold streak	46 days	9 January to 23 February 1978	A high of 32°F or below
Wettest month	14.23 in	June 2018
Driest month	0.01 in	October 1952
Wettest year	56.48 in	1973
Driest year	23.25 in	1976

Every record in words

The coldest night on record in Rockford, IL: a low of -31°F on Thursday 31 January 2019.
The wettest day on record in Rockford, IL: 5.70 in on Friday 14 August 1987.
The warmest night on record in Rockford, IL: a low of 80°F on Friday 19 July 2019 and Tuesday 6 August 1918.
The coldest day on record in Rockford, IL: a high of -14°F on Tuesday 18 January 1994 and Saturday 6 January 1912.
The longest run of days with a high of 90°F or above in Rockford, IL: 21 days, from Tuesday 28 June to Monday 18 July 1921.
The longest run of days with a high of 32°F or below in Rockford, IL: 46 days, from Monday 9 January to Thursday 23 February 1978.
The wettest month on record in Rockford, IL: June 2018, with 14.23 in of precipitation.
The driest month on record in Rockford, IL: October 1952, with 0.01 in of precipitation.
The wettest year on record in Rockford, IL: 1973, with 56.48 in of precipitation.
The driest year on record in Rockford, IL: 1976, with 23.25 in of precipitation.

Rockford, IL the day's answers