Napa June 18 Weather Records

June 18 All-Time Records 1901–2024
Highest temperature	110 °F	1920
Lowest temperature	38 °F	1929
Lowest daily high	66 °F	1953
Highest daily low	69 °F	1981
Most precipitation	0.02 inches	1909

June 18 Average Weather 1991–2020 ¹
Average high	79.1 °F
Average low	51.7 °F
Chance precipitation	3.4%

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	82	54	0.00	n/a
2022	76	44	0.00	n/a
2021	91	55	0.00	n/a
2020	92	49	0.00	n/a
2019	77	55	0.00	n/a
2018	76	52	0.00	n/a
2017	103	63	0.00	n/a
2016	81	51	0.00	n/a
2015	76	48	0.00	n/a
2014	90	43	0.00	n/a
2013	75	52	0.00	n/a
2012	68	54	0.00	n/a
2011	70	51	0.00	n/a
2010	70	49	0.00	n/a
2009	87	57	0.00	n/a
2008	92	44	0.00	n/a
2007	84	51	0.00	n/a
2006	79	51	0.00	n/a
2005	70	53	0.00	n/a
2004	72	58	0.00	n/a
2003	81	51	0.00	n/a
2002	83	59	0.00	n/a
2001	94	53	0.00	n/a
2000	73	56	0.00	n/a
1999	75	51	0.00	n/a
1998	81	53	0.00	0.0
1997	80	57	0.00	0.0
1996	85	49	0.00	0.0
1995	70	55	0.00	0.0
1994	84	49	0.00	0.0
1993	95	60	0.00	0.0
1992	76	56	0.00	0.0
1991	76	50	0.00	0.0
1990	74	53	0.00	0.0
1989	87	50	0.00	0.0
1988	96	54	0.00	0.0
1987	76	51	0.00	0.0
1986	81	51	0.00	0.0
1985	80	55	0.00	0.0
1984	84	51	0.00	0.0
1983	79	47	0.00	0.0
1982	72	58	0.00	0.0
1981	100	69	0.00	0.0
1980	79	53	0.00	0.0
1979	78	44	0.00	0.0
1978	78	52	0.00	0.0
1977	70	48	0.00	0.0
1976	75	52	0.00	0.0
1975	72	47	0.00	0.0
1974	72	59	0.00	0.0
1973	89	49	0.00	0.0
1972	82	55	0.00	0.0
1971	85	56	0.00	0.0
1970	80	44	0.00	0.0
1969	75	55	0.00	0.0
1968	79	52	0.00	0.0
1967	69	52	0.00	0.0
1966	86	51	0.00	0.0
1965	81	52	0.00	0.0
1964	77	47	0.00	0.0
1963	79	56	0.00	0.0
1962	100	52	0.00	0.0
1961	82	50	0.00	0.0
1960	75	50	0.00	0.0
1959	85	52	0.00	0.0
1958	72	57	0.00	0.0
1957	98	55	0.00	0.0
1956	88	53	0.00	0.0
1955	79	49	0.00	0.0
1954	86	46	0.00	0.0
1953	66	54	0.00	0.0
1952	72	51	0.00	0.0
1951	78	50	0.00	0.0
1950	78	52	0.00	0.0
1949	66	51	0.00	0.0
1948	80	48	0.00	n/a
1947	97	55	0.00	n/a
1946	100	51	0.00	n/a
1945	103	54	0.00	n/a
1944	68	50	0.00	n/a
1943	94	56	0.00	n/a
1942	83	45	0.00	n/a
1941	80	56	0.00	n/a
1940	76	53	0.00	n/a
1939	86	47	0.00	n/a
1938	86	47	0.00	n/a
1937	72	49	0.00	n/a
1936	78	46	0.00	n/a
1935	90	52	0.00	n/a
1934	74	52	0.00	n/a
1933	n/a	n/a	n/a	n/a
1932	75	46	0.00	n/a
1931	76	46	0.00	n/a
1930	75	49	0.00	n/a
1929	87	38	n/a	n/a
1928	69	49	0.00	n/a
1927	70	53	0.00	n/a
1926	76	48	0.00	n/a
1925	71	50	0.00	n/a
1924	72	46	0.00	n/a
1923	70	45	0.00	n/a
1922	96	48	0.00	n/a
1921	81	47	0.00	n/a
1920	110	52	0.00	n/a
1919	89	58	0.00	n/a
1918	95	52	0.00	n/a
1917	100	48	0.00	n/a
1916	n/a	n/a	n/a	n/a
1915	n/a	n/a	n/a	n/a
1914	72	54	0.00	n/a
1913	71	53	0.00	n/a
1912	93	55	n/a	n/a
1911	87	51	0.00	0.0
1910	73	43	n/a	0.0
1909	66	52	0.02	n/a
1908	80	49	n/a	n/a
1907	95	55	0.00	n/a
1906	91	56	n/a	n/a
1905	70	56	0.00	n/a
1904	80	50	0.00	n/a
1903	83	50	0.00	n/a
1902	89	53	0.00	n/a
1901	79	52	0.00	n/a

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

Rank	Temperature	Year
1	110 °F	1920
2	103 °F	2017
2	103 °F	1945
4	100 °F	1946
4	100 °F	1962
4	100 °F	1917
4	100 °F	1981
8	98 °F	1957
9	97 °F	1947
10	96 °F	1988
10	96 °F	1922

Rank	Temperature	Year
1	38 °F	1929
2	43 °F	2014
2	43 °F	1910
4	44 °F	1979
4	44 °F	2008
4	44 °F	1970
4	44 °F	2022
8	45 °F	1923
8	45 °F	1942
10	46 °F	1924
10	46 °F	1936
10	46 °F	1932
10	46 °F	1954
10	46 °F	1931

Napa June 18 Weather Records

Napa June 18 Weather by Year