Napa August 4 Weather Records

August 4 All-Time Records 1901–2024
Highest temperature	106 °F	1998
Lowest temperature	46 °F	2007
Lowest daily high	68 °F	1991
Highest daily low	64 °F	1998
Most precipitation	none	-

August 4 Average Weather 1991–2020 ¹
Average high	80.1 °F
Average low	54.1 °F
Chance precipitation	0.5%

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	78	59	0.00	n/a
2022	80	60	0.00	n/a
2021	75	53	0.00	n/a
2020	75	58	0.00	n/a
2019	80	58	0.00	n/a
2018	90	49	0.00	n/a
2017	81	61	0.00	n/a
2016	72	53	0.00	n/a
2015	76	55	0.00	n/a
2014	73	57	0.00	n/a
2013	71	54	0.00	0.0
2012	74	53	0.00	n/a
2011	73	57	0.00	n/a
2010	69	52	0.00	n/a
2009	81	55	0.00	n/a
2008	71	50	0.00	n/a
2007	82	46	0.00	n/a
2006	74	57	0.00	n/a
2005	82	53	0.00	n/a
2004	78	56	0.00	n/a
2003	82	54	0.00	n/a
2002	71	54	0.00	n/a
2001	82	56	0.00	n/a
2000	78	54	0.00	n/a
1999	74	53	0.00	n/a
1998	106	64	0.00	0.0
1997	94	55	0.00	0.0
1996	83	53	0.00	0.0
1995	81	57	0.00	0.0
1994	85	57	0.00	0.0
1993	83	58	0.00	0.0
1992	83	53	0.00	0.0
1991	68	54	0.00	0.0
1990	78	56	0.00	0.0
1989	84	56	0.00	0.0
1988	79	55	0.00	0.0
1987	85	53	0.00	0.0
1986	83	56	0.00	0.0
1985	78	57	0.00	0.0
1984	85	62	0.00	0.0
1983	83	58	0.00	0.0
1982	81	48	0.00	0.0
1981	76	52	0.00	0.0
1980	77	53	0.00	0.0
1979	74	54	0.00	0.0
1978	84	58	0.00	0.0
1977	84	51	0.00	0.0
1976	79	49	0.00	0.0
1975	86	52	0.00	0.0
1974	80	55	0.00	0.0
1973	80	51	0.00	0.0
1972	76	58	0.00	0.0
1971	85	59	0.00	0.0
1970	71	52	0.00	0.0
1969	94	56	0.00	0.0
1968	76	55	0.00	0.0
1967	83	54	0.00	0.0
1966	89	52	0.00	0.0
1965	88	55	0.00	0.0
1964	85	52	0.00	0.0
1963	84	54	0.00	0.0
1962	74	51	0.00	0.0
1961	80	57	0.00	0.0
1960	83	54	0.00	0.0
1959	71	49	0.00	0.0
1958	89	58	0.00	0.0
1957	73	53	0.00	0.0
1956	79	50	0.00	0.0
1955	81	51	0.00	0.0
1954	72	50	0.00	0.0
1953	80	50	0.00	0.0
1952	78	52	0.00	0.0
1951	71	52	0.00	0.0
1950	72	52	0.00	0.0
1949	85	46	0.00	0.0
1948	74	52	0.00	0.0
1947	99	54	0.00	n/a
1946	75	50	0.00	n/a
1945	78	51	0.00	n/a
1944	90	51	0.00	n/a
1943	78	52	0.00	n/a
1942	91	49	0.00	n/a
1941	85	53	0.00	n/a
1940	80	52	0.00	n/a
1939	80	51	0.00	n/a
1938	87	51	0.00	n/a
1937	84	54	0.00	n/a
1936	84	54	0.00	n/a
1935	73	50	0.00	n/a
1934	82	52	0.00	n/a
1933	n/a	n/a	0.00	n/a
1932	91	46	0.00	n/a
1931	79	52	0.00	n/a
1930	81	50	0.00	n/a
1929	87	55	0.00	n/a
1928	74	46	0.00	n/a
1927	74	53	0.00	n/a
1926	89	47	0.00	n/a
1925	74	51	0.00	n/a
1924	70	52	0.00	n/a
1923	71	48	0.00	n/a
1922	79	50	0.00	n/a
1921	88	49	0.00	n/a
1920	77	50	0.00	n/a
1919	74	54	0.00	n/a
1918	83	46	0.00	n/a
1917	81	49	0.00	n/a
1916	n/a	n/a	n/a	n/a
1915	n/a	n/a	n/a	n/a
1914	88	50	0.00	n/a
1913	80	55	0.00	n/a
1912	93	57	n/a	n/a
1911	69	52	0.00	n/a
1910	76	50	0.00	n/a
1909	88	54	0.00	n/a
1908	72	55	0.00	n/a
1907	88	58	0.00	n/a
1906	91	57	0.00	n/a
1905	80	57	0.00	n/a
1904	78	52	0.00	n/a
1903	70	51	0.00	n/a
1902	84	55	0.00	n/a
1901	82	55	0.00	n/a

Years	Station	Coordinates
1999–2024	Napa County Airport	location
1901–1998	Napa State Hospital	location

Rank	Temperature	Year
1	106 °F	1998
2	99 °F	1947
3	94 °F	1997
3	94 °F	1969
5	93 °F	1912
6	91 °F	1942
6	91 °F	1932
6	91 °F	1906
9	90 °F	1944
9	90 °F	2018

Rank	Temperature	Year
1	68 °F	1991
2	69 °F	2010
2	69 °F	1911
4	70 °F	1924
4	70 °F	1903
6	71 °F	1951
6	71 °F	1970
6	71 °F	1923
6	71 °F	2008
6	71 °F	2013
6	71 °F	2002
6	71 °F	1959

Napa August 4 Weather Records

Napa August 4 Weather by Year