Average September Temperature in Merced by Year

This page contains a list of the average monthly high and low temperatures in Merced, California for the month of September each year between 1899 and 2023. It is based on NOAA data.

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What Was the Hottest September Ever in Merced?

2022 was the warmest September in the history of Merced, California. The average daily high temperature was 94.5 °F, and the average low was 62.8 °F.

What Was the Coldest September Ever in Merced?

1965 was the coolest September in the history of Merced, California. The average daily high temperature was 86.1 °F, and the average low was 49.9 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	56	87.0	58.7
2022	1	94.5	62.8
2021	12	93.5	57.9
2020	9	92.9	59.7
2019	66	88.7	56.1
2018	62	90.7	54.5
2017	32	89.2	58.5
2016	76	90.2	53.9
2015	25	90.4	58.6
2014	6	92.0	61.1
2013	50	88.1	58.1
2012	4	94.9	59.1
2011	3	94.8	59.6
2010	78	89.4	54.3
2009	15	92.3	58.1
2008	19	92.7	56.9
2007	108	84.3	54.9
2006	86	88.5	54.2
2005	103	86.5	53.1
2004	79	89.3	54.4
2003	13	92.6	58.6
2002	58	90.3	55.4
2001	60	89.5	56.0
2000	85	87.4	55.5
1999	44	90.2	56.2
1998	63	86.5	58.5
1997	10	92.1	60.1
1996	74	90.7	53.5
1995	28	92.1	56.2
1994	37	90.9	55.9
1993	48	91.9	54.4
1992	33	93.2	54.4
1991	7	94.9	57.9
1990	43	90.1	56.4
1989	83	88.1	54.9
1988	70	91.9	52.7
1987	35	91.3	55.8
1986	118	84.4	52.9
1985	116	84.6	53.4
1984	2	95.4	59.6
1983	22	91.3	57.9
1982	96	86.4	54.2
1981	40	90.6	56.0
1979	34	94.6	52.8
1978	111	87.5	51.3
1977	82	89.3	53.8
1976	81	86.5	56.7
1975	27	92.6	55.9
1974	18	93.9	55.7
1973	90	88.3	53.5
1972	77	88.4	55.6
1971	38	91.1	55.6
1970	42	92.9	53.6
1969	24	93.5	55.5
1968	51	91.5	54.6
1967	8	92.8	59.9
1966	41	90.7	55.8
1965	121	86.1	49.9
1964	95	89.3	51.7
1963	20	91.9	57.7
1962	72	91.0	53.4
1961	73	90.0	54.3
1960	36	92.9	54.0
1959	98	86.9	53.1
1958	57	90.7	55.0
1957	80	91.0	52.4
1956	55	91.4	54.6
1955	49	92.3	54.0
1954	94	88.8	52.5
1953	16	91.1	58.6
1952	30	92.3	55.6
1951	47	92.9	53.5
1950	88	87.1	55.0
1949	71	90.7	53.7
1948	101	89.7	50.2
1947	54	92.5	53.4
1946	87	90.1	52.2
1945	68	90.9	53.9
1944	61	92.2	53.1
1943	67	91.0	53.8
1942	92	89.5	52.2
1941	115	87.5	50.7
1940	102	85.5	54.3
1939	53	90.3	55.7
1938	31	91.9	55.9
1937	75	89.6	54.6
1936	39	92.4	54.2
1935	64	90.1	54.8
1934	65	90.7	54.2
1933	110	86.2	52.7
1932	26	92.4	56.3
1931	109	86.0	52.9
1930	100	86.4	53.5
1928	45	93.3	53.1
1927	105	87.4	52.1
1926	113	87.0	51.5
1925	120	83.3	52.8
1924	46	91.4	55.0
1923	21	91.2	58.1
1922	11	95.5	56.4
1921	107	86.6	52.6
1920	104	84.6	55.1
1919	93	87.0	54.3
1918	106	82.4	57.0
1917	52	89.8	56.2
1916	91	87.7	53.9
1915	89	88.1	53.8
1914	117	85.1	52.7
1913	17	92.5	57.2
1912	29	87.8	60.4
1911	119	77.8	58.4
1910	99	81.0	59.0
1909	97	90.7	49.7
1908	84	88.9	54.0
1906	59	92.7	52.8
1905	112	94.5	44.2
1904	5	91.6	61.9
1903	69	93.2	51.4
1902	23	92.7	56.3
1901	114	87.0	51.4
1899	14	95.9	55.3

Weather Station Details

Years	Station	Coordinates
1998–2024	Merced Municipal Airport	location
1899–1998	Merced	location