Eureka, CA: May

31 May 2026: May 2026 averaged 54°F in Eureka, CA, the warmest May since 2020, tied 31st warmest of 140 (with 1990, 1939 and 1890).

May 2026

Mean temperature: 54°F; Warmest since 2020; 31st warmest of 140
Precipitation: 0.44 in; Driest since 2021; 19th driest of 140

A normal May in Eureka, CA (1991 to 2020): a mean temperature of 53.9°F, between 51.9°F and 56.8°F in eight years of ten and 1.26 in of precipitation, between 0.50 in and 3.55 in in eight years of ten.

The mean temperature of every May in Eureka, CA since 1887: 54°F in 2026; the highest is 57.9°F, in 1993.

Normal range, 51.9 to 56.8°F

Every year, ranked, as a table

Every May in Eureka, CA from 1887 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
2026	54	31	58.8	45	49.2	25	0.44	121
2025	53.6	45	59.2	42	48	59	0.62	115
2024	52.6	75	59.6	31	45.6	130	3.00	24
2023	53.4	52	58.4	54	48.4	42	0.97	97
2022	52.7	71	58.6	52	46.8	97	1.36	74
2021	52	97	57.9	70	46.2	114	0.25	128
2020	55.7	12	61.9	10	49.5	21	4.73	7
2019	53.5	49	58.7	49	48.4	42	2.61	29
2018	54.1	27	58.9	44	49.2	25	0.79	105
2017	53.3	55	58.4	54	48.2	49	1.31	75
2016	55.2	16	60.7	20	49.6	17	0.76	107
2015	53.4	52	58	67	48.7	38	0.07	134
2014	56.6	7	62.5	5	50.7	6	0.58	117
2013	54.2	26	60.6	22	47.8	64	1.17	84
2012	51.8	101	57.9	70	45.6	130	0.77	106
2011	51.4	114	57.1	86	45.7	123	1.43	69
2010	51.9	100	58.1	64	45.7	123	3.51	18
2009	53.5	49	58.8	45	48.1	52	2.93	25
2008	53.6	45	59.6	31	47.5	76	0.04	138
2007	52.7	71	58.8	45	46.6	103	0.86	102
2006	54.1	27	60.8	19	47.5	76	1.03	93
2005	57.2	3	63.2	3	51.2	3	3.90	12
2004	56.7	5	63.2	3	50.2	12	1.37	73
2003	54.1	27	60.4	26	47.8	64	1.74	52
2002	52.3	84	58.8	45	45.7	123	0.55	118
2001	53.9	35	61.4	15	46.5	107	0.71	111
2000	55.2	16	61.5	13	49	34	1.86	49
1999	51.2	118	57.3	82	45.2	136	1.62	61
1998	53.9	35	60.1	29	47.7	70	3.12	23
1997	57.8	2	65.1	1	50.5	8	0.90	100
1996	53.7	43	60.3	27	47.1	91	2.40	37
1995	53.7	43	58.3	59	49.1	29	1.21	83
1994	55.5	14	60.7	20	50.3	11	1.10	89
1993	57.9	1	64.2	2	51.6	2	4.44	8
1992	56.7	5	62.5	5	50.9	5	0.06	136
1991	52.2	90	57.1	86	47.2	86	2.16	41
1990	54	31	59.5	34	48.5	41	3.74	13
1989	55.9	10	61.1	18	50.6	7	1.67	59
1988	56.2	9	62.5	5	50	14	2.70	26
1987	56.5	8	61.9	10	51.2	3	0.41	124
1986	53.9	35	60.5	24	47.3	83	2.34	38
1985	53.8	41	61.2	16	46.5	107	1.14	85
1984	55	20	62	8	47.9	62	2.51	35
1983	54.4	24	60.5	24	48.2	49	1.12	87
1982	52.7	71	59.4	37	46.1	117	0.07	134
1981	53.3	55	58.4	54	48.1	52	2.02	46
1980	52.3	84	57.1	86	47.5	76	1.70	56
1979	52.7	71	58.5	53	46.9	94	2.25	39
1978	53.2	60	59.5	34	47	93	0.82	104
1977	51.4	114	57.3	82	45.6	130	2.10	43
1976	51.1	119	56.5	105	45.7	123	0.54	119
1975	51.3	116	56.3	109	46.4	111	1.05	90
1974	51.1	119	55.6	121	46.5	107	0.42	123
1973	52	97	56.6	103	47.4	80	0.85	103
1972	51.1	119	55.5	122	46.8	97	1.11	88
1971	50.6	126	54.5	132	46.7	99	1.28	78
1970	52.3	84	57.3	82	47.2	86	1.38	71
1969	53.4	52	57.8	72	49	34	1.01	96
1968	52.4	81	56.9	94	47.8	64	1.04	91
1967	51.8	101	56.6	103	47.1	91	1.52	65
1966	50.4	129	54.6	130	46.2	114	0.06	136
1965	49.9	135	53.9	138	45.8	122	0.44	121
1964	50.3	131	54.6	130	46.1	117	1.59	62
1963	53.9	35	58.2	62	49.5	21	1.74	52
1962	52.3	84	56.7	101	47.8	64	0.60	116
1961	52.5	79	56.9	94	48.1	52	3.97	11
1960	53.3	55	58.3	59	48.3	47	6.05	3
1959	52.2	90	57.6	77	46.9	94	0.91	99
1958	55.2	16	59.9	30	50.4	10	1.26	79
1957	54.7	22	59.4	37	50.1	13	3.42	22
1956	53.2	60	58	67	48.4	42	1.58	63
1955	50.1	133	54.4	134	45.9	120	0.03	140
1954	51.5	108	56.5	105	46.5	107	0.16	130
1953	52	97	57.8	72	46.3	112	5.83	4
1952	52.6	75	57.8	72	47.4	80	1.77	51
1951	52.9	66	58	67	47.8	64	1.38	71
1950	49.7	137	54.2	135	45.1	138	1.30	77
1949	53.6	45	58.4	54	48.9	36	2.56	32
1948	52.1	94	56.9	94	47.2	86	2.16	41
1947	53.9	35	59.5	34	48.3	47	0.17	129
1946	52.3	84	56.8	98	47.9	62	1.26	79
1945	53.3	55	57.5	78	49.1	29	3.43	21
1944	51.8	101	56.2	115	47.5	76	3.49	20
1943	51.7	104	55.7	120	47.7	70	4.25	9
1942	53.1	62	58.1	64	48.1	52	5.43	5
1941	55.9	10	61.2	16	50.5	8	3.61	15
1940	55.2	16	60.6	22	49.8	15	2.54	33
1939	54	31	59.6	31	48.4	42	1.85	50
1938	51.6	106	56.1	116	47.2	86	0.31	125
1937	52.2	90	56.8	98	47.7	70	0.88	101
1936	55.7	12	61.8	12	49.6	17	2.23	40
1935	51.5	108	56.3	109	46.6	103	0.30	126
1934	56.9	4	62	8	51.7	1	1.23	82
1933	51	122	55.4	123	46.7	99	4.23	10
1932	52.6	75	57.1	86	48.1	52	1.41	70
1931	54.5	23	59.4	37	49.6	17	0.49	120
1930	51.5	108	56.3	109	46.7	99	1.04	91
1929	51.6	106	56	117	47.2	86	0.14	131
1928	52.8	67	57.5	78	48.1	52	0.12	132
1927	51.3	116	55.8	119	46.7	99	1.68	58
1926	55.4	15	61.5	13	49.4	23	1.13	86
1925	53.9	35	58.7	49	49.1	29	2.57	30
1924	52.4	81	57.1	86	47.7	70	0.08	133
1923	51.7	104	56.5	105	46.9	94	1.26	79
1922	50.9	123	56.3	109	45.6	130	0.95	98
1921	50.8	125	55	128	46.6	103	2.54	33
1920	49.3	140	54	137	44.6	140	0.04	138
1919	52.1	94	56.9	94	47.3	83	1.48	67
1918	50.5	128	55.4	123	45.7	123	0.29	127
1917	50	134	54.2	135	45.9	120	1.02	94
1916	50.4	129	55	128	45.7	123	1.48	67
1915	53.6	45	58.1	64	49.1	29	2.07	45
1914	53	63	57.2	85	48.7	38	0.70	112
1913	52.4	81	57	92	47.8	64	1.67	59
1912	52.1	94	56.8	98	47.4	80	1.98	48
1911	50.6	126	55.2	126	46	119	3.52	17
1910	53.8	41	59.3	40	48.2	49	0.64	114
1909	49.5	138	53.9	138	45.2	136	0.76	107
1908	49.9	135	55.2	126	44.7	139	2.57	30
1907	53	63	56.7	101	49.2	25	1.69	57
1906	52.5	79	57	92	48	59	3.57	16
1905	52.8	67	56.4	108	49.2	25	1.99	47
1904	52.6	75	57.1	86	48	59	1.02	94
1903	51.5	108	55.3	125	47.7	70	0.70	112
1902	54.1	27	58.7	49	49.6	17	2.70	26
1901	52.2	90	56	117	48.4	42	1.50	66
1900	54.4	24	59	43	49.7	16	2.08	44
1899	49.5	138	53.4	140	45.7	123	1.73	54
1898	50.3	131	54.5	132	46.2	114	2.62	28
1897	52.8	67	58.4	54	47.3	83	0.75	110
1896	51.5	108	57.5	78	45.5	135	6.22	2
1895	53	63	58.3	59	47.6	75	5.39	6
1894	50.9	123	56.3	109	45.6	130	1.31	75
1893	51.5	108	56.3	109	46.6	103	2.43	36
1892	52.8	67	57.5	78	48.1	52	3.63	14
1891	53.3	55	57.8	72	48.7	38	1.55	64
1890	54	31	59.3	40	48.8	37	1.71	55
1889	54.8	21	60.3	27	49.4	23	7.27	1
1888	53.5	49	57.8	72	49.1	29	0.76	107
1887	52.3	84	58.2	62	46.3	112	3.51	18

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1993	57.9
1997	57.8
2005	57.2
1934	56.9
2004	56.7
1992	56.7
2014	56.6
1987	56.5
1988	56.2
1989	55.9
More years share the last value

Coldest
Year	Mean, °F
1920	49.3
1909	49.5
1899	49.5
1950	49.7
1965	49.9
1908	49.9
1917	50
1955	50.1
1964	50.3
1898	50.3

Wettest
Year	Precipitation, in
1889	7.27
1896	6.22
1960	6.05
1953	5.83
1942	5.43
1895	5.39
2020	4.73
1993	4.44
1943	4.25
1933	4.23

Driest
Year	Precipitation, in
1955	0.03
2008	0.04
1920	0.04
1992	0.06
1966	0.06
2015	0.07
1982	0.07
1924	0.08
1928	0.12
1929	0.14

The hottest, coldest and wettest days

Hottest day: 63°F; 14 May 2026
Coldest night: 41°F; 18 May 2026
Wettest day: 0.21 in; 25 May 2026

Every month, season and year

Months

Seasons

Years

Eureka, CA the day's answers

All-time records

Every answer in words

May 2026 brought 0.44 in of precipitation in Eureka, CA, the driest May since 2021, tied 19th driest of 140 (with 1965).
The hottest day of May 2026 in Eureka, CA: 63°F on Thursday 14 May 2026.
The coldest night of May 2026 in Eureka, CA: a low of 41°F on Monday 18 May 2026.
The wettest day of May 2026 in Eureka, CA: 0.21 in on Monday 25 May 2026.