Merced, CA: May

31 May 2026: May 2026 averaged 68.4°F in Merced, CA, the warmest May since 2025, tied 29th warmest of 113 (with 2017 and 1954).

May 2026

Mean temperature: 68.4°F; Warmest since 2025; 29th warmest of 113
Precipitation: 0.15 in; Driest since 2025; 49th driest of 112

A normal May in Merced, CA (1991 to 2020): a mean temperature of 67.6°F, between 63.9°F and 70.9°F in eight years of ten and 0.33 in of precipitation, between 0.01 in and 1.14 in in eight years of ten.

The mean temperature of every May in Merced, CA since 1900: 68.4°F in 2026; the highest is 73.1°F, in 2001.

Normal range, 63.9 to 70.9°F

Every year, ranked, as a table

Every May in Merced, CA from 1900 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	68.4	29	83.6	47	53.1	26	0.15	63	0
2025	69.5	17	85.7	24	53.2	24	0.00	89	0
2024	68.7	24	85	29	52.5	31	0.56	31	0
2023	66.6	58	80.5	83	52.7	29	0.77	23	0
2022	68.7	24	84.9	32	52.5	31	0.00	89	0
2021	69.6	16	86.9	15	52.4	35	0.00	89	0
2020	70.3	11	86.1	20	54.5	10	0.20	55	0
2019	64.4	86	77.4	105	51.5	50	1.40	7	0
2018	67.3	47	82.2	67	52.5	31	0.15	63	0
2017	68.4	29	83.6	47	53.3	21	0.19	56	0
2016	68.3	32	83	56	53.6	16	0.11	65	0
2015	65.7	75	79.7	92	51.6	48	0.74	25	0
2014	70.7	9	87	13	54.4	11	0.06	73	0
2013	70.1	12	85	29	55.3	6	0.10	67	0
2012	69.9	14	86.4	19	53.3	21	0.01	78	0
2011	62.6	101	77.5	104	47.7	101	0.77	23	2
2010	61.6	107	75.5	111	47.6	104	0.46	38	0
2009	71.5	4	87	13	56.1	3	0.46	38	0
2008	68.9	23	83.9	42	53.8	15	0.07	71	0
2007	67.9	35	84	40	51.8	43	0.01	78	0
2006	68.5	28	83.9	42	53.2	24	1.07	13	0
2005	66.5	62	80.5	83	52.5	31	1.11	11	0
2004	67.8	38	83.6	47	51.9	41	0.19	56	0
2003	65.8	74	81.5	74	50.6	65	0.94	18	1
2002	65.9	71	82.3	64	49.4	80	0.47	37	0
2001	73.1	1	90.5	1	55.7	4	0.00	89	0
2000	67.4	44	81.6	73	53.1	26	0.79	22	1
1999	64.6	83	80	90	49.2	82	0.19	56	0
1998	61.3	110	74.3	115	48.5	95	2.13	1	2
1997					56.5	2	0.01	78	4
1996	67.9	35	84.5	36	51	58	1.03	16	3
1995	64.5	85	79	97	50	74	1.10	12	0
1994	66.7	56	81.7	72	51.9	41	1.38	8	1
1993					51.6	48	1.06	14	4
1992	72.7	2	90.4	2	55	8	0.00	89	0
1991	64.7	82	80.7	82	48.6	90	0.09	70	1
1990	67.1	51	82.7	60	51.5	50	1.65	4	1
1988	66.6	58	82.8	58	50.3	71	0.38	46	2
1986	67	53	84.7	35	49.3	81	0.25	54	0
1985	66.7	56	83.1	53	50.1	73	0.00	89	1
1984	70.8	8	88	6	53.5	18	0.00	89	0
1983	66.6	58	81.8	70	51.8	43	0.44	43	3
1981	67.9	35	83.9	42	51.8	43	0.10	67	1
1980	63.7	92	79.5	93	48.6	90	0.46	38	2
1979			86.7	17			0.19	56	10
1978	65.2	80	84.3	37	46.2	113	0.00	89	0
1977	61.1	111	75.8	110	46.3	112	0.90	20	0
1976	69.2	22	87.4	11	51	58	0.00	89	0
1975	68.6	26	85.6	26	51.7	46	0.00	89	0
1974	67.4	44	85	29	49.8	75	0.00	89	0
1973	71.3	6	88.5	4	54.2	12	0.00	89	0
1972	70.4	10	86.7	17	54.1	13	0.00	89	0
1971	63.7	92	78.3	100	49.1	83	1.22	10	0
1970	70	13	87.5	10	52.4	35	0.00	89	0
1969					51.7	46	0.00	89	8
1968	66.9	55	83.4	51	50.4	68	0.01	78	0
1967	66.1	70	83.1	53	49.1	83	0.73	26	3
1966	69.3	21	87.3	12	51.3	54	0.19	56	0
1965	65.9	71	84.1	38	47.7	101	0.01	78	0
1964	64.1	89	80.4	86	47.7	101	0.27	51	1
1963	66.6	58	80.9	81	52.4	35	0.46	38	1
1962	63.7	92	80.2	88	47.3	107	0.02	76	0
1961	64	90	79.2	96	48.8	88	0.87	21	1
1960	65.3	79	82.6	63	48.1	98	0.00	89	0
1959	65.6	77	82.7	60	48.6	90	0.06	73	3
1958	69.5	17	86	21	52.7	29	0.70	28	1
1957	65.6	77	81	80	50.2	72	1.32	9	2
1956	66.3	66	82.8	58	49.8	75	0.52	34	0
1955									10
1954	68.4	29	85.8	23	50.9	61	0.33	49	0
1953	62.5	102	76.9	107	48.1	98	0.26	52	0
1952	68.6	26	85.7	24	51.5	50	0.16	61	0
1951	67.2	49	83.3	52	51.1	56	0.43	45	0
1950									6
1949	65.9	71	81.3	77	50.4	68	0.44	43	1
1948	62.7	99	78	101	47.5	106	1.65	4	0
1947			87.7	9	53.4	19	0.11	65	4
1946	65.7	75	81.8	70	49.6	78	1.06	14	0
1945	64.3	88	80.1	89	48.6	90	0.58	30	0
1944	66.4	64	83.9	42	48.9	86	0.54	33	0
1943	67.5	41	86	21	48.9	86	0.00	89	0
1942	63.3	97	81.1	79	45.5	114	1.45	6	0
1941	67.2	49	82.3	64	52.1	38	trace	83	0
1940	69.4	19	86.8	16	52	40	trace	83	0
1939	67.4	44	84.1	38	50.7	64	0.30	50	0
1938	66.4	64	82.3	64	50.5	66	0.06	73	0
1937	67	53	83.1	53	50.9	61	0.00	89	0
1936	67.7	39	84	40	51.2	55	0.16	61	1
1935	65.1	81	80.5	83	49.7	77	0.00	89	2
1934	69.4	19	84.8	33	54.1	13	0.63	29	0
1933			74.5	113			0.72	27	6
1932	67.3	47	81.3	77	53.4	19	0.26	52	0
1931	71.4	5	88	6	54.8	9	0.52	34	0
1930	62.3	104	76.8	108	47.8	100	0.45	42	0
1929	68	34	85.6	26	50.4	68	0.00	89	0
1928	71.9	3	88.8	3	55.1	7	0.00	89	0
1927	67.7	39	82.1	68	53.3	21	0.07	71	0
1926	69.7	15	83.8	46	55.6	5	0.10	67	0
1925	67.1	51	81.4	76	52.9	28			0
1924	71	7	88.4	5	53.6	16			0
1923	64.4	86	79.8	91	49	85			0
1922	66.3	66	82.1	68	50.5	66			0
1921	62.4	103	76.2	109	48.6	90			0
1920	66.3	66	83	56	49.5	79			0
1919	67.5	41	83.6	47	51.4	53			0
1918	62.3	104	77.6	103	47.2	108	trace	83	1
1917	60.8	112	74.4	114	47.1	109	0.34	48	0
1916	62.9	98	78.6	99	47.1	109	0.02	76	0
1915	61.5	109	72.3	117	50.8	63	1.99	3	0
1914	68.3	32	85.4	28	51	58	trace	83	1
1913	66.3	66	81.5	74	51.1	56	0.55	32	0
1912	67.5	41	77.9	102	56.7	1	0.35	47	1
1911	62.7	99	73.4	116	52.1	38	trace	83	0
1909	61.6	107	78.7	98	44.5	116	0.00	89	0
1908	60.1	113	74.9	112	45.2	115	0.94	18	0
1907	64.6	83	80.3	87	48.8	88	trace	83	1
1906	62.2	106	77.3	106	46.6	111	2.10	2	3
1905	64	90	79.3	94	48.4	96			3
1904			87.8	8			0.00	89	11
1903	66.5	62	84.8	33	48.3	97	0.00	89	0
1902	63.4	96	79.3	94	47.6	104	0.50	36	2
1900	63.6	95	82.7	60	44.5	116	0.97	17	1

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2001	73.1
1992	72.7
1928	71.9
2009	71.5
1931	71.4
1973	71.3
1924	71
1984	70.8
2014	70.7
1972	70.4

Coldest
Year	Mean, °F
1908	60.1
1917	60.8
1977	61.1
1998	61.3
1915	61.5
2010	61.6
1909	61.6
1906	62.2
1930	62.3
1918	62.3

Wettest
Year	Precipitation, in
1998	2.13
1906	2.10
1915	1.99
1990	1.65
1948	1.65
1942	1.45
2019	1.40
1994	1.38
1957	1.32
1971	1.22

Driest
Year	Precipitation, in
2025	0.00
2022	0.00
2021	0.00
2001	0.00
1992	0.00
1985	0.00
1984	0.00
1978	0.00
1976	0.00
1975	0.00
More years share the last value

The hottest, coldest and wettest days

Hottest day: 97°F; 11 May 2026
Coldest night: 48°F; 18 May 2026
Wettest day: 0.12 in; 28 May 2026

Every month, season and year

Months

Seasons

Years

Merced, CA the day's answers

All-time records

Every answer in words

May 2026 brought 0.15 in of precipitation in Merced, CA, the driest May since 2025, tied 49th driest of 112 (with 2018).
The hottest day of May 2026 in Merced, CA: 97°F on Monday 11 May 2026.
The coldest night of May 2026 in Merced, CA: a low of 48°F on Monday 18 May 2026.
The wettest day of May 2026 in Merced, CA: 0.12 in on Thursday 28 May 2026.