Number of Days of 100 °F in Rockford by Year

This page contains a list of the number of days in each year that the high temperature equaled or exceeded 100 degrees Fahrenheit in Rockford, Illinois, between 1893 and 2024.

Also see:

Which year had the most 100° days?

Based on NOAA records, the year 1936 holds the record for the most 100 °F days in Rockford history. There were 15 days with a high temperature of at least 100 degrees that year.

How many so far this year (2024)?

It has not reached 100 degrees Fahrenheit in Rockford so far in 2024. As of April 26, the highest temperature this year is 84 °F.

The last time it reached at least 100° F was June 21, 2022.

Years marked with a gold background have more than 5% incomplete data
Click column headers to sort

Year	Rank	Days >= 100 °F
2024	33	0
2023	33	0
2022	23	1
2021	33	0
2020	33	0
2019	33	0
2018	33	0
2017	33	0
2016	33	0
2015	33	0
2014	33	0
2013	33	0
2012	5	6
2011	19	2
2010	33	0
2009	33	0
2008	33	0
2007	33	0
2006	33	0
2005	33	0
2004	33	0
2003	33	0
2002	33	0
2001	33	0
2000	33	0
1999	33	0
1998	33	0
1997	33	0
1996	33	0
1995	33	0
1994	33	0
1993	33	0
1992	33	0
1991	33	0
1990	33	0
1989	23	1
1988	3	7
1987	33	0
1986	33	0
1985	33	0
1984	33	0
1983	33	0
1982	33	0
1981	33	0
1980	33	0
1979	33	0
1978	33	0
1977	33	0
1976	33	0
1975	33	0
1974	33	0
1973	33	0
1972	33	0
1971	33	0
1970	33	0
1969	33	0
1968	33	0
1967	33	0
1966	33	0
1965	33	0
1964	33	0
1963	33	0
1962	33	0
1961	33	0
1960	33	0
1959	33	0
1958	33	0
1957	33	0
1956	23	1
1955	10	3
1954	33	0
1953	10	3
1952	33	0
1951	33	0
1950	33	0
1949	33	0
1948	23	1
1947	5	6
1946	33	0
1945	33	0
1944	33	0
1943	33	0
1942	33	0
1941	10	3
1940	10	3
1939	10	3
1938	33	0
1937	23	1
1936	1	15
1935	23	1
1934	2	11
1933	19	2
1932	23	1
1931	5	6
1930	9	4
1929	33	0
1928	33	0
1927	33	0
1926	33	0
1925	19	2
1924	33	0
1923	23	1
1922	10	3
1921	8	5
1920	33	0
1919	33	0
1918	10	3
1917	19	2
1916	3	7
1915	33	0
1914	33	0
1913	10	3
1912	33	0
1911	10	3
1910	33	0
1909	33	0
1908	33	0
1907	33	0
1906	33	0
1905	33	0
1904	33	0
1903	33	0
1902	33	0
1901	33	0
1900	33	0
1899	33	0
1898	33	0
1897	23	1
1896	23	1
1895	33	0
1894	33	0
1893	33	0

Weather Station Details

Years	Station	Coordinates
1951–2024	Greater Rockford Airport	location
1893–1950	Rockford	location