Eureka September 21 Weather Records

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

September 21 All-Time Records
1941–2024

80 °F

43 °F

53 °F

Highest daily low

59 °F

0.68 inches

Most snow

none

September 21 Average Weather
1991–2020 ¹

Average high

63.9 °F

Average low

50.5 °F

Chance precipitation

19.1%

Chance snow

Year	High (°F)	Low (°F)	Precip. (inches)
2023	64	44	0.00
2022	67	51	0.00
2021	77	49	0.00
2020	68	57	0.00
2019	66	52	0.00
2018	64	46	0.00
2017	63	45	0.00
2016	62	50	0.00
2015	61	55	0.00
2014	68	59	0.00
2013	68	55	0.22
2012	61	45	0.00
2011	61	47	0.00
2010	60	51	0.00
2009	76	52	0.00
2008	62	51	0.00
2007	65	46	0.00
2006	62	51	0.03
2005	59	47	0.00
2004	66	46	0.00
2003	68	47	0.00
2002	70	49	0.00
2001	60	47	0.00
2000	64	54	0.00
1999	60	49	0.01
1998	61	52	0.00
1997	70	50	0.00
1996	62	49	0.00
1995	69	52	0.00
1994	60	51	0.00
1993	59	45	0.00
1992	61	50	0.00
1991	64	47	0.00
1990	72	57	0.00
1989	57	50	0.00
1988	64	46	0.00
1987	56	50	0.00
1986	61	51	0.00
1985	63	51	0.00
1984	62	52	0.00
1983	78	56	0.00
1982	62	52	0.00
1981	64	49	0.00
1980	61	46	0.00
1979	65	59	0.00
1978	61	48	0.02
1977	61	50	0.00
1976	61	49	0.00
1975	62	51	0.00
1974	56	50	0.00
1973	63	52	0.00
1972	69	49	0.03
1971	58	49	0.00
1970	61	48	0.00
1969	59	51	0.00
1968	59	43	0.00
1967	61	54	0.00
1966	65	53	0.00
1965	57	45	0.00
1964	61	47	0.00
1963	62	52	0.00
1962	61	55	0.00
1961	60	46	0.00
1960	59	45	0.00
1959	61	49	0.00
1958	62	49	0.00
1957	66	51	0.00
1956	61	47	0.00
1955	57	45	0.00
1954	61	57	0.00
1953	67	55	0.02
1952	55	50	0.00
1951	53	48	0.00
1950	64	52	0.00
1949	64	46	0.00
1948	65	46	0.00
1947	80	56	0.00
1946	61	53	0.00
1945	61	51	0.68
1944	68	48	0.00
1943	70	54	0.00
1942	55	47	0.00

What's the all-time high for Eureka on 9/21?

For the date of Sep 21, the highest temperature ever reached in Eureka history is 80 °F which happened in 1947.

Highest Temperatures in Eureka on September 21

What's the all-time low for Eureka on 9/21?

For the date of Sep 21, the lowest temperature ever reached in Eureka history is 43 °F which happened in 1968.

Lowest Temperatures in Eureka on September 21

Lowest High Temperatures in Eureka on September 21

What's the most it has ever rained in Eureka on 9/21?

For the date of Sep 21, the most precipitation ever recorded in Eureka history is 0.68 inches which happened in 1945.

All-Time Most Precipitation in Eureka on September 21

Weather Station Details

Years	Station	Coordinates
1941–2024	Eureka Woodley Island	location