Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Chicago Temperature Rankings for each month
Jan	Feb	Mar	Apr	May	Jun	July	Aug	Sept	Oct	Nov	Dec

CHICAGO

MEAN MONTHLY TEMPERATURE
OCTOBER

Normal: 54.0 degrees

***Coldest to Warmest Official Chicago Temperature Data from 1872-2022***

45.0	1917	52.6	1893	55.5	1998
45.0	1925	52.6	1907	55.6	1877
46.1	1988	52.6	1932	55.6	1960
46.2	1895	52.7	2008	55.7	1968
47.2	1887	52.7	2018	55.8	1912
47.3	1987	52.8	1878	55.8	1970
48.1	1875	52.8	1906	56.0	1934
48.4	1980	52.8	1933	56.0	1939
48.6	1976	52.8	1983	56.0	2010
48.8	1952	52.9	1999	56.1	1881
48.9	2009	53.1	1929	56.1	1961
49.0	2006	53.1	2013	56.1	2000
49.1	1888	53.2	1982	56.4	1884
49.1	1981	53.2	1991	56.4	1915
49.4	1876	53.2	1997	56.5	1928
49.4	1889	53.3	1911	56.6	1975
49.5	1993	53.3	1913	56.9	1886
49.6	1873	53.3	1942	56.9	1941
49.6	1896	53.3	1966	56.9	2016
49.8	2002	53.3	1969	57.2	1919
50.2	1872	53.4	1904	57.2	1949
50.2	1972	53.4	1905	57.3	1962
50.4	1992	53.4	1944	57.4	1918
50.6	1898	53.4	1967	57.4	1940
50.6	1909	53.5	1974	57.5	1958
50.9	2019	53.6	1892	57.6	1922
51.1	1964	53.6	1903	57.6	2017
51.2	1937	53.6	1936	58.0	1882
51.4	1880	53.7	1874	58.0	1899
51.4	1890	53.7	1943	58.0	1927
51.4	1945	53.7	1986	58.4	1897
51.5	1948	53.7	1995	58.5	1946
51.5	2012	53.8	1979	58.5	1973
51.5	2020	53.9	2004	58.6	1910
51.6	1885	54.0	1965	58.8	1931
51.6	1930	54.0	1989	58.8	1938
51.6	1978	54.0	2022	59.0	1950
51.6	1990	54.2	1935	59.0	2007
51.8	1977	54.5	1916	59.4	1914
51.8	2003	54.7	1984	59.7	1953
51.9	1959	54.7	1994	59.7	2021
51.9	1996	54.7	2015	59.8	1924
52.0	1957	54.8	1921	60.8	1879
52.0	2014	54.9	1951	60.8	1956
52.1	1894	54.9	2011	61.4	1900
52.1	2001	55.2	1902	61.9	1920
52.2	1883	55.2	1908	62.1	1947
52.4	1926	55.2	2005	62.2	1971
52.5	1923	55.3	1954	64.3	1963
52.5	1985	55.4	1901
52.6	1891	55.5	1955

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Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

October Temperature Rankings for Chicago