Average September Temperature in Modesto by Year

This page contains a list of the average monthly high and low temperatures in Modesto, California for the month of September each year between 1927 and 2023. It is based on NOAA data.

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What Was the Hottest September Ever in Modesto?

1984 was the warmest September in the history of Modesto, California. The average daily high temperature was 93.8 °F, and the average low was 61.2 °F.

What Was the Coldest September Ever in Modesto?

1927 was the coolest September in the history of Modesto, California. The average daily high temperature was 82.8 °F, and the average low was 49.3 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	58	84.0	59.1
2022	2	90.9	63.5
2021	22	89.3	58.9
2020	3	91.4	62.1
2019	35	87.3	59.3
2018	36	88.7	57.7
2017	11	89.8	61.7
2016	17	90.4	58.6
2015	8	91.1	61.3
2014	15	88.8	60.6
2013	44	86.2	58.8
2012	12	90.8	59.4
2011	6	92.4	60.4
2010	29	89.0	58.1
2009	7	91.6	61.0
2008	10	92.0	59.7
2007	43	85.9	59.2
2006	38	88.5	57.4
2005	72	85.7	55.8
2004	39	88.2	57.7
2003	13	90.4	59.8
2002	21	89.6	58.7
2001	33	88.6	58.2
2000	49	87.0	57.5
1999	46	87.3	57.6
1998	14	88.0	61.9
1997	4	91.2	62.2
1996	45	87.2	57.8
1995	24	88.2	59.7
1994	26	87.8	59.6
1993	27	88.7	58.6
1992	16	89.7	59.5
1991	9	90.9	61.3
1990	31	87.2	59.7
1989	65	84.1	57.9
1988	34	89.8	56.9
1987	52	89.1	55.0
1986	94	82.1	52.1
1985	82	83.7	55.1
1984	1	93.8	61.2
1983	18	88.6	60.1
1982	71	84.2	57.3
1981	28	89.4	57.9
1980	59	87.2	55.8
1979	5	93.4	59.6
1978	70	85.3	56.6
1977	53	86.7	57.3
1976	54	86.1	57.7
1975	32	89.4	57.5
1974	25	90.9	56.8
1973	76	85.4	55.2
1972	81	84.9	54.5
1971	48	88.5	56.2
1970	61	89.2	53.6
1969	19	90.0	58.4
1968	66	87.0	55.0
1967	20	89.2	59.1
1966	78	87.3	52.6
1965	93	83.2	51.2
1964	91	85.7	50.3
1963	30	89.6	57.4
1962	68	88.1	53.8
1961	80	87.1	52.5
1960	55	89.8	53.8
1959	77	85.9	54.2
1958	23	91.7	56.3
1957	62	86.7	55.5
1956	67	87.0	54.9
1955	63	88.3	53.9
1954	89	84.9	52.3
1953	42	87.6	57.8
1952	41	88.5	57.1
1951	56	87.8	55.8
1950	74	84.8	56.3
1949	86	85.7	52.0
1948	85	85.7	52.1
1947	37	91.4	54.8
1946	64	88.2	53.9
1945	69	87.2	54.6
1944	47	90.0	54.8
1943	57	88.8	54.5
1942	88	84.7	52.7
1941	87	84.9	52.7
1940	83	83.6	55.1
1939	40	89.9	55.8
1938	50	88.3	56.2
1937	75	87.5	53.4
1936	60	88.8	54.0
1935	79	86.6	53.3
1934	73	88.5	52.9
1933	92	83.4	51.3
1932	51	89.8	54.3
1931	95	83.3	50.3
1930	96	80.8	51.5
1929	90	86.4	50.8
1928	84	88.1	50.4
1927	97	82.8	49.3

Weather Station Details

Years	Station	Coordinates
1906–2024	Modesto City-County Airport	location