Eureka, CA: August

31 August 2026: August 2026 averaged 59.1°F in Eureka, CA, the warmest August since 2025, tied 31st warmest of 140 (with 2017, 2014 and 1992).

August 2026

Mean temperature: 59.1°F; Warmest since 2025; 31st warmest of 140
Precipitation: 0.07 in; Wettest since 2024; 61st wettest of 140

A normal August in Eureka, CA (1991 to 2020): a mean temperature of 59.1°F, between 56.9°F and 61.4°F in eight years of ten and 0.08 in of precipitation, between 0.00 in and 0.47 in in eight years of ten.

The mean temperature of every August in Eureka, CA since 1887: 59.1°F in 2026; the highest is 61.9°F, in 2019 and 1983.

Normal range, 56.9 to 61.4°F

Every year, ranked, as a table

Every August 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	59.1	31	64.1	33	54	30	0.07	61
2025	59.6	20	65.3	18	53.9	33	0.06	70
2024	59.4	24	65.5	15	53.3	55	1.47	6
2023	60.5	8	65.8	9	55.2	5	0.11	50
2022	60.2	10	65.7	11	54.7	15	0.11	50
2021	57.5	64	63.4	42	51.7	98	0.03	86
2020	59.5	22	66.2	8	52.8	66	0.08	56
2019	61.9	1	68.7	1	55.1	9	0.18	40
2018	58.5	42	63.1	46	53.9	33	0.05	75
2017	59.1	31	64.1	33	54.2	27	0.05	75
2016	56.9	79	62.3	60	51.5	104	0.04	81
2015	61.5	3	67.2	4	55.7	2	0.41	25
2014	59.1	31	63.8	38	54.5	20	0.02	92
2013	59.7	18	65.6	12	53.9	33	0.08	56
2012	56.7	89	61.7	71	51.6	100	0.07	61
2011	58	52	63	49	53	61	0.04	81
2010	56.6	92	61.8	70	51.5	104	0.15	43
2009	59	35	65	19	52.9	65	0.02	92
2008	58.7	40	63.8	38	53.6	46	0.47	22
2007	59.6	20	65.5	15	53.7	40	0.08	56
2006	56.8	85	62	65	51.6	100	trace	114
2005	56.9	79	61.7	71	52.2	84	0.07	61
2004	61.1	6	67	6	55.2	5	0.43	23
2003	61.1	6	67.2	4	55.1	9	0.49	20
2002	57	74	62.9	51	51.1	122	0.01	101
2001	59.4	24	64.9	23	54	30	0.21	35
2000	59	35	65	19	53	61	trace	114
1999	60	12	65.4	17	54.7	15	0.30	31
1998	58.8	38	63.8	38	53.7	40	0.01	101
1997	61.4	4	68.1	3	54.7	15	0.84	9
1996	58.1	50	64.2	31	51.9	92	trace	114
1995	58.4	45	64.9	23	51.9	92	0.22	34
1994	61.4	4	67	6	55.8	1	trace	114
1993	59.8	16	65	19	54.6	18	0.54	15
1992	59.1	31	64.2	31	53.9	33	0.01	101
1991	59.9	13	64.6	26	55.2	5	0.37	27
1990	60.4	9	65.6	12	55.1	9	0.71	10
1989	59.2	30	64.1	33	54.4	23	0.13	45
1988	57.7	59	62.5	55	52.8	66	trace	114
1987	58.5	42	63.1	46	53.8	37	0.06	70
1986	57.1	71	63.1	46	51.2	118	trace	114
1985	58.5	42	64.4	28	52.5	76	0.52	18
1984	60.2	10	65.8	9	54.5	20	0.05	75
1983	61.9	1	68.3	2	55.5	3	3.42	1
1982	59.5	22	65.6	12	53.5	49	0.03	86
1981	58.1	50	62.5	55	53.7	40	0.01	101
1980	55	127	59.4	124	50.6	133	0.07	61
1979	59.4	24	64.5	27	54.3	26	0.13	45
1978	57	74	62.3	60	51.6	100	0.59	12
1977	58.3	46	62.6	54	54	30	0.20	38
1976	57.9	55	61.9	66	53.8	37	1.70	5
1975	55.3	121	59.6	117	51	124	0.58	13
1974	57.7	59	61.6	76	53.7	40	0.32	29
1973	54.8	130	58.9	130	50.7	131	0.08	56
1972	58.2	49	63	49	53.4	52	0.07	61
1971	59.9	13	64.7	25	55.2	5	0.55	14
1970	55.3	121	59.7	115	50.9	126	trace	114
1969	55.7	116	60.3	104	51.2	118	trace	114
1968	59.3	28	64	37	54.5	20	1.98	3
1967	56.7	89	60.9	92	52.6	73	trace	114
1966	55.9	105	60.5	101	51.3	115	0.50	19
1965	58.9	37	63.4	42	54.4	23	0.36	28
1964	57	74	61.7	71	52.2	84	0.03	86
1963	57.1	71	61.1	88	53.1	59	0.07	61
1962	57.7	59	62.1	63	53.3	55	1.92	4
1961	57.1	71	61.2	84	53.1	59	0.30	31
1960	55.3	121	59.9	112	50.8	130	0.04	81
1959	56.1	101	60.2	109	52	89	0.01	101
1958	57.6	63	61.7	71	53.5	49	trace	114
1957	58.3	46	62.5	55	54.1	29	0.02	92
1956	56.8	85	61.2	84	52.4	80	trace	114
1955	53.4	139	56.9	140	49.9	137	trace	114
1954	56.7	89	60.6	97	52.8	66	1.24	7
1953	58.8	38	63.2	44	54.4	23	0.41	25
1952	55.9	105	60.3	104	51.5	104	0.01	101
1951	55.4	119	59.1	127	51.7	98	0.02	92
1950	57.3	65	61.6	76	53	61	0.07	61
1949	58.7	40	63.2	44	54.2	27	0.02	92
1948	58	52	62.5	55	53.5	49	0.13	45
1947	58.3	46	62.8	52	53.7	40	0.10	53
1946	55.9	105	59.5	120	52.2	84	0.01	101
1945	55.5	117	59.5	120	51.6	100	0.10	53
1944	56.8	85	61	91	52.5	76	0.19	39
1943	57.2	69	61.4	81	53	61	0.21	35
1942	57.3	65	60.9	92	53.8	37	0.06	70
1941	59.3	28	63.8	38	54.8	13	0.18	40
1940	58	52	62.5	55	53.6	46	0.00	135
1939	56.9	79	61.2	84	52.5	76	0.06	70
1938	55.9	105	60	110	51.8	96	trace	114
1937	56.3	98	61.3	82	51.4	112	0.05	75
1936	56.5	94	60.7	95	52.3	82	trace	114
1935	55.5	117	60	110	50.9	126	trace	114
1934	57	74	60.6	97	53.4	52	0.01	101
1933	55.3	121	59.5	120	51.1	122	0.05	75
1932	56.8	85	61.3	82	52.4	80	0.03	86
1931	55.3	121	59.4	124	51.2	118	0.01	101
1930	59.8	16	64.3	29	55.3	4	trace	114
1929	57.8	57	62.7	53	52.8	66	0.01	101
1928	55	127	58.9	130	51	124	0.05	75
1927	56.5	94	60.9	92	52.2	84	0.02	92
1926	57.7	59	61.7	71	53.6	46	0.54	15
1925	56.2	100	60.5	101	51.9	92	0.25	33
1924	56.5	94	60.3	104	52.6	73	1.03	8
1923	59.7	18	64.3	29	55.1	9	0.02	92
1922	56.9	79	61.9	66	51.9	92	0.03	86
1921	55.8	113	59.9	112	51.8	96	0.01	101
1920	56.1	101	60.7	95	51.5	104	0.49	20
1919	55.9	105	60.3	104	51.5	104	0.01	101
1918	56.6	92	61.9	66	51.4	112	0.21	35
1917	54	136	57.5	138	50.5	135	0.02	92
1916	56	104	60.4	103	51.5	104	0.12	49
1915	57.9	55	62.1	63	53.7	40	0.00	135
1914	54.5	133	57.8	135	51.3	115	trace	114
1913	57.8	57	62.3	60	53.4	52	0.03	86
1912	57.2	69	61.5	78	52.8	66	0.04	81
1911	55.8	113	59.4	124	52.2	84	0.08	56
1910	53.4	139	57.5	138	49.3	138	0.00	135
1909	54.8	130	59	129	50.6	133	trace	114
1908	53.7	138	58.1	134	49.3	138	0.16	42
1907	55.8	113	59.6	117	52	89	2.66	2
1906	54.4	135	57.8	135	50.9	126	0.01	101
1905	56.9	79	61.2	84	52.6	73	0.00	135
1904	54.5	133	57.8	135	51.3	115	trace	114
1903	56.1	101	59.6	117	52.5	76	0.53	17
1902	56.9	79	60.6	97	53.3	55	trace	114
1901	55	127	58.7	132	51.2	118	trace	114
1900	57	74	61.1	88	52.8	66	0.07	61
1899	55.9	105	59.8	114	52	89	0.42	24
1898	55.9	105	59.5	120	52.3	82	0.06	70
1897	56.5	94	61.5	78	51.5	104	0.15	43
1896	59.9	13	65	19	54.8	13	0.70	11
1895	54	136	59.1	127	49	140	0.11	50
1894	57.3	65	61.9	66	52.7	72	0.04	81
1893	55.2	126	59.7	115	50.7	131	0.00	135
1892	56.3	98	61.1	88	51.4	112	0.09	55
1891	59.4	24	64.1	33	54.6	18	0.31	30
1890	55.9	105	60.3	104	51.5	104	0.02	92
1889	55.4	119	60.6	97	50.3	136	0.13	45
1888	57.3	65	61.5	78	53.2	58	0.00	135
1887	54.8	130	58.7	132	50.9	126	0.07	61

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2019	61.9
1983	61.9
2015	61.5
1997	61.4
1994	61.4
2004	61.1
2003	61.1
2023	60.5
1990	60.4
2022	60.2
More years share the last value

Coldest
Year	Mean, °F
1955	53.4
1910	53.4
1908	53.7
1917	54
1895	54
1906	54.4
1914	54.5
1904	54.5
1973	54.8
1909	54.8
More years share the last value

Wettest
Year	Precipitation, in
1983	3.42
1907	2.66
1968	1.98
1962	1.92
1976	1.70
2024	1.47
1954	1.24
1924	1.03
1997	0.84
1990	0.71

Driest
Year	Precipitation, in
1940	0.00
1915	0.00
1910	0.00
1905	0.00
1893	0.00
1888	0.00
2006	trace
2000	trace
1996	trace
1994	trace
More years share the last value

The hottest, coldest and wettest days

Hottest day: 69°F; 22 August 2026, 1 August 2026
Coldest night: 49°F; 3 August 2026
Wettest day: 0.01 in; 28 August 2026, 27 August 2026, 25 August 2026, 20 August 2026, 14 August 2026, 13 August 2026, 7 August 2026

Every month, season and year

Months

Seasons

Years

Eureka, CA the day's answers

All-time records

Every answer in words

August 2026 brought 0.07 in of precipitation in Eureka, CA, the wettest August since 2024, tied 61st wettest of 140 (with 2012, 2005, 1980 and 5 other years).
The hottest day of August 2026 in Eureka, CA: 69°F on Saturday 22 August 2026 and Saturday 1 August 2026.
The coldest night of August 2026 in Eureka, CA: a low of 49°F on Monday 3 August 2026.
The wettest day of August 2026 in Eureka, CA: 0.01 in on Friday 28 August 2026, Thursday 27 August 2026, Tuesday 25 August 2026 and 4 other days.