Merced, CA: September

30 September 2026: September 2026 averaged 73.1°F in Merced, CA, the warmest September since 2025, tied 50th warmest of 123 (with 2013, 1955 and 1906).

September 2026

Mean temperature: 73.1°F; Warmest since 2025; 50th warmest of 123
Precipitation: 0.00 in; Ties the record; Driest of 115, provisional

A normal September in Merced, CA (1991 to 2020): a mean temperature of 73.2°F, between 71.5°F and 76.5°F in eight years of ten and 0.00 in of precipitation, between 0.00 in and 0.18 in in eight years of ten.

The mean temperature of every September in Merced, CA since 1899: 73.1°F in 2026; the highest is 78.7°F, in 2022.

Normal range, 71.5 to 76.5°F

Every year, ranked, as a table

Every September in Merced, CA from 1899 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	73.1	50	88.7	87	57.6	28	0.00	61	0
2025	76	12	90.4	64	61.6	3	0.10	33	0
2024	76.3	8	93.4	13	59.2	11	0.00	61	0
2023	72.9	58	87	102	58.7	14	0.03	42	0
2022	78.7	1	94.5	8	62.8	1	0.20	21	0
2021	75.7	14	93.5	11	57.9	25	0.00	61	0
2020	76.3	8	92.9	19	59.7	8	0.00	61	0
2019	72.4	66	88.7	87	56.1	40	trace	49	0
2018	72.6	62	90.7	56	54.5	66	0.00	61	0
2017	73.9	33	89.2	84	58.5	19	0.02	43	0
2016	72.1	75	90.2	68	53.9	82	0.00	61	0
2015	74.5	25	90.4	64	58.6	15	trace	49	0
2014	76.6	6	92.1	36	61.1	4	trace	49	0
2013	73.1	50	88.1	93	58.1	21	trace	49	0
2012	77	5	94.9	5	59.1	12	0.02	43	0
2011	77.2	4	94.8	7	59.6	10	trace	49	0
2010	71.9	78	89.4	79	54.3	70	0.00	61	0
2009	75.2	17	92.3	32	58.1	21	0.17	23	0
2008	74.8	19	92.7	23	56.9	31	trace	49	0
2007	69.6	109	84.3	120	54.9	60	0.25	17	0
2006	71.5	84	88.7	87	54.2	75	0.00	61	2
2005	69.8	105	86.5	109	53.1	97	0.22	18	0
2004	71.9	78	89.3	81	54.4	68	0.12	30	0
2003	75.6	15	92.6	25	58.6	15	0.02	43	0
2002	72.8	60	90.3	66	55.4	54	trace	49	0
2001	72.7	61	89.4	79	56	41	0.14	26	1
2000	71.4	86	87.3	101	55.5	53	0.10	33	1
1999	73.2	43	90.2	68	56.2	37	trace	49	0
1998	72.3	72	86.1	114	58.5	19	0.02	43	2
1997	76.2	11	92.6	25	60.1	6	0.07	36	3
1996	71.9	78	90.7	56	53.5	90	0.00	61	2
1995	74.3	29	92.3	32	56.2	37	0.00	61	1
1994	73.2	43	91.1	50	55.9	43	0.22	18	3
1993	73	54	91.8	40	54.4	68	0.00	61	1
1992	73.8	35	93.2	15	54.3	70	0.00	61	0
1991	76.5	7	95	4	57.9	25	0.00	61	0
1990	73.2	43	90.1	70	56.4	33	0.00	61	1
1989	71.4	86	88	95	54.8	62	1.34	3	1
1988	72.4	66	92	38	52.7	105	0.00	61	1
1987	73.6	36	91.3	45	55.7	47	0.00	61	3
1986	68.6	118	84.2	121	52.9	101	0.30	15	1
1985	68.6	118	84.2	121	53.4	94	0.00	61	2
1984	78.1	2	95.9	1	59.7	8	0.11	31	3
1983	74.7	23	91.3	45	58	24	0.58	9	1
1982	70.2	98	86.4	111	54.2	75	1.14	4	2
1981	73.3	39	90.6	62	56	41	0.00	61	0
1980			88.3	91			0.00	61	5
1979			94.9	5			0.00	61	6
1978	69.4	112	87.5	98	51.3	116	0.74	6	0
1977	71.6	82	89.3	81	53.8	85	0.00	61	0
1976	71.8	81	86.5	109	56.7	32	0.97	5	1
1975	74.3	29	92.6	25	55.9	43	0.02	43	1
1974	74.8	19	93.9	10	55.7	47	0.00	61	0
1973	70.9	92	88.2	92	53.5	90	0.00	61	0
1972	72	77	88.4	90	55.6	50	0.11	31	0
1971	73.4	38	91.1	50	55.6	50	0.06	38	0
1970	73.3	39	92.9	19	53.6	89	0.00	61	0
1969	74.4	27	93.5	11	55.4	54	0.00	61	1
1968	73.2	43	91.8	40	54.6	64	0.00	61	2
1967	76.3	8	92.8	22	59.9	7	0.06	38	0
1966	73.3	39	90.7	56	55.8	46	0.07	36	0
1965	68	122	86.1	114	49.9	121	0.00	61	0
1964	70.5	97	89.3	81	51.7	114	0.00	61	0
1963	74.8	19	91.8	40	57.7	27	0.38	13	0
1962	72.4	66	91.3	45	53.4	94	0.00	61	2
1961	72.2	73	90	74	54.3	70	0.13	28	0
1960	73.6	36	93.1	17	54	79	0.00	61	1
1959	70	100	86.9	107	53.1	97	1.40	2	0
1958	72.6	62	90.6	62	54.9	60	0.16	24	2
1957	71.4	86	90.9	54	52	113	0.14	26	2
1956	72.9	58	91.3	45	54.5	66	0.18	22	1
1955	73.1	50	92.3	32	54	79	0.00	61	0
1954	70.6	96	88.8	86	52.5	108	0.00	61	0
1953	74.9	18	91.1	50	58.6	15	0.00	61	0
1952	74	32	92.3	32	55.6	50	0.34	14	0
1951	73.2	43	92.9	19	53.5	90	0.00	61	0
1950	71	90	87	102	55	58	0.40	12	1
1949	72.2	73	90.7	56	53.7	88	0.00	61	0
1948	69.9	103	89.7	76	50.2	120	0.00	61	0
1947	73	54	92.5	28	53.4	94	0.01	48	0
1946	71.2	89	90.1	70	52.2	110			0
1945	72.4	66	90.9	54	53.9	82	0.04	40	0
1944	72.6	62	92.1	36	53.1	97	0.08	35	0
1943	72.4	66	91	53	53.8	85	0.00	61	0
1942	70.8	93	89.5	78	52.2	110	0.00	61	0
1941	69.1	116	87.5	98	50.4	119	0.00	61	1
1940	69.9	103	85.5	117	54.3	70	trace	49	0
1939	73	54	90.3	66	55.7	47	0.63	8	0
1938	73.9	33	91.9	39	55.9	43	0.21	20	0
1937	72.1	75	89.6	77	54.6	64	0.00	61	0
1936	73.3	39	92.4	30	54.2	75	0.00	61	0
1935	72.5	65	90.1	70	54.8	62	trace	49	0
1934	72.4	66	90.7	56	54.2	75	0.16	24	0
1933	69.2	115	86.2	113	52.4	109	0.00	61	1
1932	74.4	27	92.4	30	56.3	35	0.00	61	0
1931	69.5	111	86	116	52.9	101	0.00	61	0
1930	70	100	86.4	111	53.5	90	0.04	40	0
1929			90.1	70			0.00	61	30
1928	73.2	43	93.3	14	53.1	97	0.00	61	0
1927	69.7	107	87.4	100	52.1	112	trace	49	0
1926	69.3	113	87	102	51.5	115	0.00	61	0
1925	68	122	83.3	123	52.8	103	0.00	61	0
1924	73.2	43	91.4	44	55	58			0
1923	74.6	24	91.2	49	58.1	21			0
1922	76	12	95.5	3	56.4	33			0
1921	69.6	109	86.6	108	52.6	107			0
1920	69.8	105	84.6	119	55.1	57			0
1919	70.7	94	87	102	54.3	70			0
1918	69.7	107	82.4	124	57	30			0
1917	73	54	89.8	75	56.2	37			0
1916	70.7	94	87.8	96	53.9	82			1
1915	71	90	88.1	93	53.8	85			0
1914	68.9	117	85.1	118	52.7	105	0.45	11	0
1913	74.8	19	92.5	28	57.2	29	trace	49	0
1912	74.2	31	87.8	96	60.4	5	0.13	28	1
1911	68.1	121	77.8	126	58.6	15	0.00	61	1
1910	70	100	81	125	59	13	0.27	16	0
1909	70.2	98	90.7	56	49.7	122	0.00	61	0
1908	71.5	84	88.9	85	54	79	0.48	10	0
1906	73.1	50	93.1	17	52.8	103	0.00	61	2
1905	69.3	113	94.5	8	44.2	123	0.00	61	0
1904	77.4	3	91.7	43	62.1	2	1.80	1	3
1903	71.6	82	93.2	15	50.9	117	0.00	61	2
1902	74.5	25	92.7	23	56.3	35	0.00	61	0
1901	68.6	118	87	102	50.9	117	0.65	7	3
1899	75.6	15	95.9	1	55.2	56	0.00	61	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2022	78.7
1984	78.1
1904	77.4
2011	77.2
2012	77
2014	76.6
1991	76.5
2024	76.3
2020	76.3
1967	76.3

Coldest
Year	Mean, °F
1965	68
1925	68
1911	68.1
1986	68.6
1985	68.6
1901	68.6
1914	68.9
1941	69.1
1933	69.2
1926	69.3
More years share the last value

Wettest
Year	Precipitation, in
1904	1.80
1959	1.40
1989	1.34
1982	1.14
1976	0.97
1978	0.74
1901	0.65
1939	0.63
1983	0.58
1908	0.48

Driest
Year	Precipitation, in
2026	0.00
2024	0.00
2021	0.00
2020	0.00
2018	0.00
2016	0.00
2010	0.00
2006	0.00
1996	0.00
1995	0.00
More years share the last value

The hottest, coldest and wettest days

Hottest day: 105°F; 10 September 2026
Coldest night: 50°F; 15 September 2026

Every month, season and year

Months

Seasons

Years

Merced, CA the day's answers

All-time records

Every answer in words

September 2026 brought 0.00 in of precipitation in Merced, CA, tying the record for the driest September, set in 2024, 2021, 2020 and 51 other years, in 115 years since 1899 (1900 excluded: 30 of 30 days missing; 1907 excluded: 30 of 30 days missing; 1915 excluded: 30 of 30 days missing; 10 more years excluded for missing days); provisional.
The hottest day of September 2026 in Merced, CA: 105°F on Thursday 10 September 2026.
The coldest night of September 2026 in Merced, CA: a low of 50°F on Tuesday 15 September 2026.