Average September Temperature in Ottawa by Year

This page contains a list of the average monthly high and low temperatures in Ottawa, Kansas for the month of September each year between 1895 and 2023. It is based on NOAA data.

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What Was the Hottest September Ever in Ottawa?

1939 was the warmest September in the history of Ottawa, Kansas. The average daily high temperature was 91.8 °F, and the average low was 63.9 °F.

What Was the Coldest September Ever in Ottawa?

1902 was the coolest September in the history of Ottawa, Kansas. The average daily high temperature was 75.2 °F, and the average low was 49.6 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	41	85.8	56.0
2022	53	84.7	56.0
2021	32	84.0	59.2
2020	113	77.6	54.2
2019	8	84.6	63.8
2018	62	80.3	59.6
2017	61	82.0	58.0
2016	48	81.4	59.6
2015	27	83.6	61.0
2014	101	78.3	55.4
2013	50	83.4	57.4
2012	96	79.8	55.0
2011	117	79.3	51.5
2010	71	81.5	57.4
2009	120	75.0	55.5
2006	122	76.7	53.5
2005	20	84.2	62.5
2004	44	83.8	57.5
2003	110	78.3	54.1
2002	6	88.4	60.6
2001	88	80.0	56.1
2000	7	89.1	59.4
1999	102	78.6	55.0
1998	3	87.7	64.0
1997	33	83.4	59.5
1996	106	77.8	55.0
1995	90	79.2	56.7
1994	85	80.2	56.6
1993	111	77.9	54.2
1992	75	80.6	57.9
1991	52	82.3	58.4
1990	15	87.6	59.9
1989	119	77.4	53.1
1988	38	84.8	57.4
1987	82	80.7	56.6
1986	22	82.7	63.3
1985	80	79.5	58.0
1984	77	82.8	55.3
1983	34	85.2	57.6
1982	65	81.4	58.1
1981	43	83.0	58.6
1980	24	86.2	58.8
1979	57	84.9	55.4
1978	13	87.2	60.6
1977	39	81.9	60.1
1976	60	83.4	56.7
1975	104	77.7	55.2
1974	125	74.8	50.2
1973	68	77.6	61.6
1972	40	80.7	61.2
1971	47	82.3	58.7
1970	67	80.5	58.6
1969	58	81.3	58.9
1968	83	81.4	55.4
1967	112	77.6	54.3
1966	109	77.6	55.0
1965	76	79.7	58.3
1964	73	80.2	58.7
1963	23	85.4	60.3
1962	105	75.7	57.2
1961	107	77.6	55.2
1960	28	84.3	59.2
1959	45	81.8	59.3
1958	63	80.2	59.5
1957	99	80.4	54.1
1956	17	90.6	56.4
1955	19	86.7	60.0
1954	4	90.9	60.4
1953	11	90.8	57.3
1952	49	87.7	53.3
1951	116	76.2	54.9
1950	98	78.4	56.1
1949	124	76.5	51.4
1948	36	84.7	57.6
1947	12	87.4	60.6
1946	92	79.5	56.1
1945	55	82.7	57.7
1944	78	80.6	57.4
1943	118	79.1	51.6
1942	103	76.6	56.6
1941	46	81.4	59.7
1940	79	79.8	58.1
1939	1	91.8	63.9
1938	35	84.0	58.6
1937	30	83.7	59.6
1936	10	84.7	63.4
1935	94	80.0	55.3
1934	108	78.7	54.1
1933	9	85.3	62.9
1932	91	81.7	54.2
1931	2	90.9	64.5
1930	25	84.9	59.9
1929	87	80.6	55.8
1928	115	77.9	53.3
1927	66	80.3	59.0
1926	64	77.9	61.6
1925	14	84.3	63.3
1924	123	76.0	53.4
1923	81	79.0	58.5
1922	29	84.2	59.1
1921	16	84.7	62.5
1920	70	81.3	57.8
1919	26	85.5	59.3
1917	100	79.6	54.8
1916	84	80.7	56.1
1915	59	79.4	60.7
1914	31	82.4	60.8
1913	56	82.6	57.7
1912	95	79.6	55.4
1911	5	87.2	64.1
1910	72	81.4	57.5
1909	86	83.6	53.2
1908	74	85.4	53.4
1907	89	82.9	53.1
1906	37	83.5	58.8
1905	54	82.5	58.0
1904	51	83.3	57.4
1903	114	80.0	51.6
1902	126	75.2	49.6
1901	93	81.0	54.4
1900	42	81.8	59.9
1899	97	81.9	52.6
1898	69	82.3	56.8
1897	18	89.0	58.0
1896	121	77.2	53.1
1895	21	84.3	62.3

Weather Station Details

Years	Station	Coordinates
1895–2024	Ottawa	location