Eureka October 21 Weather Records

Daily averages and all-time records for weather in Eureka, California for the date of October 21.

October 21 All-Time Records
1941–2024

73 °F

38 °F

48 °F

Highest daily low

61 °F

1.27 inches

Most snow

none

October 21 Average Weather
1991–2020 ¹

Average high

61.6 °F

Average low

46.7 °F

Chance precipitation

29.0%

Chance snow

Year	High (°F)	Low (°F)	Precip. (inches)
2023	71	54	0.00
2022	62	50	0.07
2021	73	51	0.84
2020	60	49	0.00
2019	61	45	0.00
2018	53	47	0.00
2017	62	47	0.02
2016	59	51	0.03
2015	62	52	0.00
2014	67	54	0.00
2013	48	45	0.01
2012	60	39	0.64
2011	64	50	0.00
2010	66	48	0.03
2009	64	50	0.00
2008	59	45	0.00
2007	60	38	0.00
2006	72	42	0.00
2005	52	48	0.00
2004	60	47	0.00
2003	65	56	0.01
2002	58	50	0.03
2001	56	47	0.00
2000	58	43	0.00
1999	53	41	0.00
1998	73	45	0.00
1997	54	49	0.00
1996	64	38	0.00
1995	59	47	0.00
1994	61	46	0.00
1993	60	50	0.00
1992	65	51	0.11
1991	61	49	0.00
1990	65	44	0.16
1989	67	55	0.36
1988	58	52	0.00
1987	62	51	0.00
1986	54	48	0.01
1985	59	46	0.12
1984	60	47	0.00
1983	67	51	0.00
1982	68	61	0.13
1981	54	47	0.00
1980	58	48	0.00
1979	66	45	0.00
1978	57	48	0.00
1977	60	42	0.00
1976	55	49	0.00
1975	63	46	0.25
1974	57	45	0.00
1973	59	53	1.27
1972	60	48	0.00
1971	57	41	0.00
1970	58	49	0.31
1969	69	51	0.00
1968	59	44	0.00
1967	67	53	0.40
1966	56	42	0.00
1965	60	46	0.00
1964	51	45	0.00
1963	69	57	0.02
1962	53	50	0.00
1961	56	45	0.05
1960	58	48	0.00
1959	61	52	0.30
1958	61	44	0.00
1957	63	47	0.00
1956	57	50	0.06
1955	54	47	0.00
1954	70	51	0.20
1953	56	44	0.00
1952	55	48	0.00
1951	58	45	0.02
1950	64	55	0.00
1949	55	40	0.00
1948	56	46	0.00
1947	58	47	0.00
1946	65	53	0.12
1945	56	47	0.12
1944	67	52	0.00
1943	59	48	0.02
1942	71	53	0.00

What's the all-time high for Eureka on 10/21?

For the date of Oct 21, the highest temperature ever reached in Eureka history is 73 °F which has happened 2 times, most recently in 2021.

Highest Temperatures in Eureka on October 21

What's the all-time low for Eureka on 10/21?

For the date of Oct 21, the lowest temperature ever reached in Eureka history is 38 °F which has happened 2 times, most recently in 2007.

Lowest Temperatures in Eureka on October 21

Lowest High Temperatures in Eureka on October 21

What's the most it has ever rained in Eureka on 10/21?

For the date of Oct 21, the most precipitation ever recorded in Eureka history is 1.27 inches which happened in 1973.

All-Time Most Precipitation in Eureka on October 21

Weather Station Details

Years	Station	Coordinates
1941–2024	Eureka Woodley Island	location