Oakland Threshold Days by Year

20 fixed thresholds counted per year at Oakland (USC00136151): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Oakland Thresholds

Oakland: days with a maximum temperature at or above 30 C (86 F) in 98 years, most in 1936 with 108.
Oakland: days with a maximum temperature at or above 90 F (32.2 C) in 98 years, most in 1936 with 88.
Oakland: days with a maximum temperature at or below 0 C (32 F) in 98 years, most in 2010 with 81.
Oakland: nights with a minimum temperature at or below 0 C (32 F) in 98 years, most in 1952 with 171.
20 fixed thresholds have at least one qualifying day at Oakland.

Days at or above 30 C (86 F)

98 years with a qualifying day

Days per year at Oakland with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 108 in 1936.

Days at or above 30 C (86 F) per year at Oakland
Year	Days	Decade average
1919	65	65
1920	53	57.9
1921	88	57.9
1922	73	57.9
1924	32	57.9
1925	64	57.9
1926	62	57.9
1927	61	57.9
1928	45	57.9
1929	43	57.9
1930	60	75.9
1931	74	75.9
1932	44	75.9
1933	77	75.9
1934	92	75.9
1935	75	75.9
1936	108	75.9
1937	87	75.9
1938	51	75.9
1939	91	75.9
1940	59	62.6
1941	73	62.6
1942	62	62.6
1943	81	62.6
1946	48	62.6
1947	69	62.6
1948	60	62.6
1949	49	62.6
1950	29	54.1
1951	26	54.1
1952	52	54.1
1953	67	54.1
1954	72	54.1
1955	75	54.1
1956	80	54.1
1957	49	54.1
1958	36	54.1
1959	55	54.1
1960	46	49.1
1961	49	49.1
1962	60	49.1
1963	74	49.1
1964	48	49.1
1965	31	49.1
1966	48	49.1
1967	33	49.1
1968	61	49.1
1969	41	49.1
1970	63	53.7
1971	62	53.7
1972	49	53.7
1973	42	53.7
1974	52	53.7
1975	65	53.7
1976	53	53.7
1977	53	53.7
1978	59	53.7
1979	39	53.7
1980	70	53.5
1981	43	53.5
1982	35	53.5
1983	83	53.5
1986	33	53.5
1987	53	53.5
1988	69	53.5
1989	42	53.5
1990	45	40.1
1991	53	40.1
1992	14	40.1
1996	28	40.1
1997	57	40.1
1998	45	40.1
1999	39	40.1
2000	46	41.4
2001	46	41.4
2002	61	41.4
2003	45	41.4
2004	17	41.4
2007	66	41.4
2008	33	41.4
2009	17	41.4
2010	55	47.2
2011	53	47.2
2012	70	47.2
2013	42	47.2
2014	30	47.2
2015	33	47.2
2016	45	47.2
2017	49	47.2
2018	52	47.2
2019	43	47.2
2020	55	54
2021	57	54
2022	60	54
2023	51	54
2024	46	54
2025	59	54
2026	50	54

For each year, a bar from the first to the last day at Oakland meeting 30 C (86 F).

First to last qualifying date each year at Oakland
Year	First date	Last date
1919	1919-05-29	1919-10-02
1920	1920-05-22	1920-10-10
1921	1921-04-03	1921-09-23
1922	1922-05-03	1922-10-28
1924	1924-04-15	1924-08-21
1925	1925-05-20	1925-09-29
1926	1926-04-29	1926-09-22
1927	1927-04-26	1927-10-25
1928	1928-03-24	1928-10-11
1929	1929-04-04	1929-09-03
1930	1930-04-10	1930-10-11
1931	1931-04-07	1931-10-10
1932	1932-05-04	1932-09-18
1933	1933-05-19	1933-09-25
1934	1934-05-06	1934-10-12
1935	1935-06-10	1935-09-24
1936	1936-04-20	1936-09-22
1937	1937-05-28	1937-10-01
1938	1938-03-21	1938-10-17
1939	1939-04-23	1939-10-07
1940	1940-04-14	1940-10-25
1941	1941-05-14	1941-09-21
1942	1942-04-29	1942-09-16
1943	1943-05-28	1943-09-05
1946	1946-03-31	1946-08-20
1947	1947-05-14	1947-10-21
1948	1948-04-18	1948-09-19
1949	1949-05-03	1949-10-08
1950	1950-04-22	1950-09-19
1951	1951-06-27	1951-09-11
1952	1952-05-03	1952-09-30
1953	1953-05-24	1953-10-02
1954	1954-04-25	1954-10-03
1955	1955-04-18	1955-10-11
1956	1956-04-01	1956-10-12
1957	1957-06-05	1957-09-01
1958	1958-05-11	1958-09-24
1959	1959-05-01	1959-09-08
1960	1960-04-22	1960-10-11
1961	1961-04-20	1961-09-10
1962	1962-04-21	1962-10-10
1963	1963-05-08	1963-10-16
1964	1964-04-16	1964-09-09
1965	1965-04-30	1965-09-09
1966	1966-05-04	1966-10-14
1967	1967-04-16	1967-09-25
1968	1968-03-30	1968-09-02
1969	1969-05-26	1969-10-04
1970	1970-04-28	1970-09-20
1971	1971-06-03	1971-10-01
1972	1972-04-06	1972-09-19
1973	1973-05-21	1973-09-21
1974	1974-05-20	1974-09-26
1975	1975-05-18	1975-10-13
1976	1976-05-20	1976-10-02
1977	1977-04-09	1977-08-27
1978	1978-05-19	1978-09-18
1979	1979-05-17	1979-09-05
1980	1980-04-20	1980-09-20
1981	1981-04-25	1981-09-30
1982	1982-05-04	1982-08-22
1983	1983-05-27	1983-10-02
1986	1986-03-29	1986-09-26
1987	1987-04-19	1987-09-26
1988	1988-05-12	1988-09-21
1989	1989-04-22	1989-09-02
1990	1990-06-06	1990-10-06
1991	1991-04-07	1991-09-14
1992	1992-05-01	1992-08-10
1996	1996-04-12	1996-09-05
1997	1997-05-17	1997-09-19
1998	1998-05-19	1998-09-30
1999	1999-05-29	1999-10-13
2000	2000-04-06	2000-09-19
2001	2001-05-02	2001-09-06
2002	2002-04-16	2002-10-01
2003	2003-04-02	2003-10-20
2004	2004-04-17	2004-09-20
2007	2007-04-30	2007-10-08
2008	2008-05-02	2008-09-02
2009	2009-04-25	2009-08-16
2010	2010-04-02	2010-10-09
2011	2011-05-10	2011-10-05
2012	2012-04-02	2012-09-12
2013	2013-05-15	2013-09-28
2014	2014-05-08	2014-09-05
2015	2015-06-10	2015-10-12
2016	2016-05-31	2016-09-25
2017	2017-05-09	2017-09-25
2018	2018-05-24	2018-10-04
2019	2019-04-22	2019-10-01
2020	2020-06-02	2020-10-10
2021	2021-04-05	2021-09-29
2022	2022-04-13	2022-09-21
2023	2023-04-13	2023-10-03
2024	2024-06-06	2024-10-06
2025	2025-05-11	2025-10-05
2026	2026-03-22	2026-10-12

Every Fixed Threshold

Fixed thresholds at Oakland
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	98	108	1936	50
35 C (95 F): Days	89	48	1936	2
40 C (104 F): Days	13	21	1936	1
45 C (113 F): Days	1	4	1936	4
90 F (32.2 C): Days	98	88	1936	18
100 F (37.8 C): Days	34	34	1936	1
110 F (43.3 C): Days	1	8	1936	8
0 C (32 F): Ice days (max	98	81	2010	25
0 C (32 F): Frost days (min	98	171	1952	85
-10 C (14 F): Days with min	98	76	1978	29
-20 C (-4 F): Days with min	96	34	1963	5
-30 C (-22 F): Days with min	33	6	1996	2
20 C (68 F): Tropical nights (min	98	50	1937	25
25 C (77 F): Days with min	20	7	1930	1
10 mm (0.39 in): Days with 10 mm or more rain	95	43	2010	27
25 mm (0.98 in): Days with 25 mm or more rain	95	15	2007	9
50 mm (1.97 in): Days with 50 mm or more rain	73	6	1998	3
100 mm (3.94 in): Days with 100 mm or more rain	10	3	2014	1
10 cm (3.9 in): Days with 10 cm or more snowfall	75	6	1961	1
25 cm (9.8 in): Days with 25 cm or more snowfall	6	1	1932	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1919.

Download the Data

Data for Oakland threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).

Oakland Threshold Days by Year

Key Facts for Oakland Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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