Average July 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 July each year between 1908 and 2022. It is based on NOAA data.

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What Was the Hottest July Ever in St. Helena?

1996 was the warmest July in the history of St. Helena, California. The average daily high temperature was 94.9 °F, and the average low was 56.0 °F.

What Was the Coldest July Ever in St. Helena?

1930 was the coolest July in the history of St. Helena, California. The average daily high temperature was 84.6 °F, and the average low was 45.2 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2022	43	88.1	54.9
2021	29	89.8	54.2
2020	12	91.8	55.0
2019	42	89.4	53.6
2018	4	92.4	57.3
2017	2	93.8	57.0
2016	34	88.9	54.8
2015	13	88.1	58.4
2014	11	88.7	58.2
2013	23	88.5	56.2
2012	44	87.7	55.2
2011	54	85.9	56.3
2010	82	84.8	54.2
2009	48	88.4	54.3
2008	39	88.0	55.5
2007	25	88.3	56.1
2006	3	92.5	58.1
2005	8	90.9	57.2
2004	70	85.3	55.7
2003	7	91.8	56.5
2002	36	88.5	55.2
2001	61	86.6	55.2
2000	78	85.9	53.9
1999	81	85.8	53.3
1997	15	90.4	55.6
1996	1	94.9	56.0
1995	14	89.8	56.3
1994	85	85.6	53.0
1993	24	90.0	54.6
1992	17	89.7	55.7
1991	28	89.0	55.0
1990	18	89.8	55.5
1989	20	91.7	53.5
1986	65	87.9	53.7
1985	6	91.5	57.4
1984	9	92.5	55.5
1983	59	88.4	53.4
1982	77	87.6	52.4
1981	45	89.9	53.1
1978	40	90.6	52.5
1977	49	91.0	51.6
1976	60	89.0	52.7
1975	91	86.5	51.6
1974	47	89.5	53.4
1973	67	90.1	51.1
1972	31	90.8	53.1
1971	69	89.3	51.8
1970	52	90.2	52.3
1969	63	89.7	52.1
1968	57	89.3	52.7
1967	41	89.8	53.2
1966	100	86.4	50.2
1965	89	87.7	50.6
1964	56	90.3	51.8
1963	92	86.9	50.9
1962	90	88.9	49.2
1961	10	94.0	53.6
1960	22	91.9	52.8
1959	16	93.4	52.5
1958	66	86.0	55.5
1957	58	89.5	52.4
1953	38	92.3	51.2
1952	26	90.0	54.3
1951	75	89.2	51.1
1950	30	91.6	52.4
1949	79	89.7	49.8
1948	80	87.8	51.6
1947	87	88.3	50.2
1946	51	90.3	52.2
1945	21	93.0	52.2
1944	88	86.7	51.7
1943	76	89.3	51.0
1942	53	90.5	51.9
1941	35	90.3	53.4
1940	84	89.6	49.3
1939	46	93.0	49.9
1938	71	90.3	50.6
1937	68	88.6	52.6
1936	74	89.9	50.5
1935	99	88.6	48.6
1934	94	89.1	48.5
1933	72	92.6	48.2
1931	27	94.8	49.5
1930	104	84.6	45.2
1929	101	86.3	50.2
1928	102	85.5	49.0
1927	86	90.1	48.5
1926	62	94.5	47.3
1925	64	95.3	46.3
1924	103	88.6	44.2
1923	98	90.7	46.8
1922	50	92.0	50.6
1921	19	94.3	50.9
1918	96	90.1	47.5
1917	37	91.7	51.8
1916	32	92.8	51.1
1915	55	89.6	52.6
1914	95	86.7	50.8
1913	5	93.6	55.5
1912	97	87.0	50.4
1911	73	90.3	50.5
1910	83	90.2	48.7
1909	93	89.8	48.0
1908	33	94.0	49.8

Weather Station Details

Years	Station	Coordinates
1907–2023	Saint Helena	location