Average October Temperature in St. Helena by Year

This page contains a list of the average monthly high and low temperatures in St. Helena, California for the month of October each year between 1908 and 2021. It is based on NOAA data.

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What Was the Hottest October Ever in St. Helena?

2015 was the warmest October in the history of St. Helena, California. The average daily high temperature was 83.9 °F, and the average low was 52.7 °F.

What Was the Coldest October Ever in St. Helena?

1920 was the coolest October in the history of St. Helena, California. The average daily high temperature was 60.0 °F, and the average low was 42.8 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2021	36	76.4	48.4
2019	65	79.8	41.9
2018	5	80.1	51.1
2017	4	82.5	48.8
2016	44	72.9	51.1
2015	1	83.9	52.7
2014	2	81.3	51.5
2013	51	78.3	45.4
2011	20	76.2	51.5
2010	33	74.4	51.3
2009	39	74.2	50.2
2008	8	80.6	49.6
2007	64	73.8	47.9
2006	42	75.8	48.3
2004	73	72.3	48.3
2003	6	82.6	48.6
2002	27	78.3	47.9
2001	3	80.1	51.5
2000	46	75.6	48.4
1999	16	80.3	47.9
1998	62	75.9	46.2
1997	30	77.0	48.8
1996	37	77.1	47.8
1995	7	82.3	48.1
1994	48	77.1	46.7
1993	23	77.6	49.6
1992	10	79.4	50.2
1991	9	82.1	47.6
1990	11	82.9	46.3
1989	72	74.6	46.0
1988	26	77.9	48.4
1986	31	76.7	49.0
1985	56	75.5	47.4
1984	82	72.9	46.1
1983	19	79.9	47.9
1982	49	77.6	46.2
1981	83	74.2	44.8
1978	17	82.2	46.0
1977	43	77.5	46.6
1976	29	81.1	44.9
1975	98	71.9	45.4
1974	34	79.4	46.1
1973	55	77.4	45.5
1972	80	70.4	48.9
1971	99	75.7	40.4
1970	95	74.4	43.3
1969	77	74.1	46.2
1968	63	76.4	45.4
1967	18	81.1	46.8
1966	28	81.8	44.3
1965	13	83.9	45.0
1964	12	82.6	46.3
1963	54	74.6	48.8
1962	57	74.4	48.4
1958	14	82.7	45.7
1957	92	71.1	46.9
1956	90	74.7	43.7
1955	52	79.7	43.8
1954	79	77.1	42.7
1953	75	77.0	43.5
1952	40	78.8	45.4
1951	78	75.5	44.8
1950	66	75.4	46.2
1949	87	77.9	40.8
1948	69	76.3	44.7
1947	70	73.1	47.9
1946	94	76.1	41.7
1945	41	75.6	48.5
1944	59	78.3	44.4
1943	74	76.9	43.6
1942	67	78.5	43.0
1941	85	76.2	42.6
1940	61	78.6	44.0
1939	58	82.2	40.6
1938	88	74.2	44.3
1937	38	79.4	45.2
1936	45	81.4	42.6
1935	93	75.3	42.6
1934	68	75.3	46.1
1933	24	82.0	44.8
1932	71	79.5	41.5
1931	101	73.1	42.0
1930	47	81.3	42.5
1929	53	83.9	39.6
1928	96	78.1	39.4
1927	81	78.2	40.9
1926	50	78.7	45.0
1925	102	75.3	39.6
1924	103	69.6	44.2
1923	76	77.3	43.1
1922	86	73.5	45.3
1921	35	81.0	44.3
1920	105	60.0	42.8
1919	97	78.7	38.7
1918	25	80.9	45.7
1917	21	84.1	43.6
1916	104	68.7	42.9
1915	22	84.8	42.6
1914	60	77.3	45.4
1913	15	83.0	45.2
1912	100	74.3	40.9
1911	89	76.9	41.6
1910	32	80.2	45.5
1909	91	73.4	45.0
1908	84	77.0	42.0

Weather Station Details

Years	Station	Coordinates
1907–2023	Saint Helena	location