Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Chicago Precipitation Rankings for each month

CHICAGO
MONTHLY TOTAL PRECIPITATION
SEPTEMBER

Normal: 3.19 inches

***Smallest to Greatest Official Chicago Precipitation Data from 1871 - 2022***

0.01	1979	1.89	1937	3.68	1968
0.26	2004	1.98	1893	3.74	1876
0.31	1940	1.99	1878	3.76	1874
0.32	1891	2.00	1950	3.78	1933
0.32	2017	2.01	1946	3.79	1988
0.46	1956	2.02	1877	3.84	1984
0.49	1939	2.02	1953	3.85	1919
0.74	1871	2.09	1908	3.90	1910
0.77	1962	2.15	1917	3.91	1989
0.83	1954	2.17	1959	4.00	1903
0.84	1897	2.17	1976	4.03	1887
0.89	1895	2.20	2022	4.03	1911
0.91	1882	2.24	1916	4.03	1934
0.92	1943	2.25	1880	4.18	1905
0.92	1966	2.29	1884	4.23	1973
0.94	1987	2.34	1998	4.31	1992
0.98	1888	2.38	1948	4.34	1881
1.03	1990	2.39	1899	4.37	1922
1.03	2009	2.50	1923	4.39	1875
1.04	1994	2.50	1964	4.47	1993
1.04	1995	2.51	1991	4.49	1907
1.08	1957	2.57	2013	4.64	2015
1.09	1975	2.63	1963	4.83	1902
1.12	1932	2.65	1904	5.03	1926
1.15	1982	2.66	2005	5.12	1942
1.18	1879	2.71	2014	5.14	1931
1.23	2007	2.73	1996	5.20	1941
1.23	2021	2.75	1889	5.29	1938
1.24	1949	2.78	2010	5.29	1951
1.27	1930	2.80	1978	5.41	1983
1.31	1969	2.92	1901	5.54	1906
1.34	1892	2.97	1885	5.65	1980
1.36	1883	3.03	1929	5.72	1921
1.39	1890	3.14	1924	5.75	1972
1.40	1960	3.16	1898	5.85	2006
1.47	1955	3.17	1967	6.01	1945
1.49	1913	3.18	2020	6.05	2001
1.53	1974	3.19	1925	6.21	1965
1.56	1900	3.25	1981	6.43	1872
1.56	1914	3.26	1912	6.70	1896
1.56	1944	3.26	1947	6.71	1970
1.61	1952	3.27	1999	6.72	1927
1.70	1997	3.28	1935	6.93	1886
1.72	2002	3.35	1920	7.12	1986
1.72	2003	3.45	2011	7.61	2019
1.76	2012	3.47	1971	8.28	1894
1.76	2016	3.53	1873	8.97	1936
1.82	1985	3.53	1915	9.44	1977
1.84	1918	3.59	2000	13.63	2008
1.86	1958	3.60	1909	14.17	1961
1.87	1928	3.65	2018

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Dangerous Heat and Heavy Rainfall into the Weekend

September Precipitation Rankings for Chicago