Tropical Moisture Will Bring Heavy to Excessive Rainfall with Possible Flooding This Week

Tropical moisture from the remnants of Odalys and Hurricane Polo will surge over the southwest into the central U.S. this week with several days of heavy to excessive rainfall which may bring limited to considerable flooding. Flood Watches have been issued through Wednesday in the southwest U.S. and moderate risk outlooks have been issued today through Thursday. 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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Tropical Moisture Will Bring Heavy to Excessive Rainfall with Possible Flooding This Week

September Precipitation Rankings for Chicago