Oakland 1 SE Threshold Days by Year (USC00186620)

18 fixed thresholds counted per year at Oakland 1 SE (USC00186620): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Oakland 1 SE Thresholds

Oakland 1 SE: days with a maximum temperature at or below 0 C (32 F) in 122 years, most in 2010 with 69.
Oakland 1 SE: nights with a minimum temperature at or below 0 C (32 F) in 119 years, most in 1904 with 182.
Oakland 1 SE: nights with a minimum temperature at or below -10 C (14 F) in 119 years, most in 1895 with 58.
Oakland 1 SE: days with a maximum temperature at or above 30 C (86 F) in 116 years, most in 1936 with 38.
18 fixed thresholds have at least one qualifying day at Oakland 1 SE.

Days at or above 30 C (86 F)

116 years with a qualifying day

Days per year at Oakland 1 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 38 in 1936.

Days at or above 30 C (86 F) per year at Oakland 1 SE
Year	Days	Decade average
1894	4	6.5
1895	9	6.5
1904	6	7.6
1905	3	7.6
1906	3	7.6
1908	19	7.6
1909	7	7.6
1910	8	14.7
1911	25	14.7
1912	8	14.7
1913	21	14.7
1914	23	14.7
1915	12	14.7
1916	12	14.7
1917	10	14.7
1918	15	14.7
1919	13	14.7
1921	10	11.3
1922	11	11.3
1923	6	11.3
1924	11	11.3
1925	17	11.3
1926	12	11.3
1927	16	11.3
1928	5	11.3
1929	14	11.3
1930	35	20.8
1931	35	20.8
1932	10	20.8
1933	21	20.8
1934	23	20.8
1935	11	20.8
1936	38	20.8
1937	20	20.8
1938	7	20.8
1939	8	20.8
1940	12	14.6
1941	20	14.6
1942	14	14.6
1943	18	14.6
1944	25	14.6
1945	12	14.6
1946	10	14.6
1947	10	14.6
1948	10	14.6
1949	15	14.6
1950	2	15.3
1951	10	15.3
1952	29	15.3
1953	32	15.3
1954	16	15.3
1955	20	15.3
1956	3	15.3
1957	19	15.3
1958	3	15.3
1959	19	15.3
1960	4	6.7
1961	6	6.7
1962	5	6.7
1963	3	6.7
1964	11	6.7
1965	13	6.7
1966	12	6.7
1967	4	6.7
1968	5	6.7
1969	4	6.7
1970	1	3.1
1971	2	3.1
1972	6	3.1
1973	7	3.1
1974	2	3.1
1975	4	3.1
1976	1	3.1
1977	5	3.1
1978	1	3.1
1979	2	3.1
1980	10	9.9
1981	1	9.9
1982	3	9.9
1984	12	9.9
1985	2	9.9
1986	2	9.9
1987	14	9.9
1988	35	9.9
1990	2	9.7
1991	15	9.7
1993	19	9.7
1994	9	9.7
1995	15	9.7
1996	4	9.7
1997	2	9.7
1998	2	9.7
1999	19	9.7
2001	3	8.3
2002	12	8.3
2006	13	8.3
2007	11	8.3
2008	9	8.3
2009	2	8.3
2010	20	16.4
2011	16	16.4
2012	22	16.4
2013	6	16.4
2014	8	16.4
2015	11	16.4
2016	23	16.4
2017	14	16.4
2018	24	16.4
2019	20	16.4
2020	23	18.7
2021	25	18.7
2022	14	18.7
2023	3	18.7
2024	27	18.7
2025	23	18.7
2026	16	18.7

For each year, a bar from the first to the last day at Oakland 1 SE meeting 30 C (86 F).

First to last qualifying date each year at Oakland 1 SE
Year	First date	Last date
1894	1894-06-23	1894-07-20
1895	1895-05-30	1895-09-20
1904	1904-05-25	1904-09-12
1905	1905-06-18	1905-07-18
1906	1906-07-20	1906-09-09
1908	1908-06-23	1908-09-24
1909	1909-06-21	1909-08-13
1910	1910-06-20	1910-08-18
1911	1911-05-11	1911-08-17
1912	1912-07-08	1912-09-09
1913	1913-05-05	1913-09-07
1914	1914-05-25	1914-09-22
1915	1915-04-26	1915-09-16
1916	1916-07-08	1916-08-22
1917	1917-06-26	1917-08-29
1918	1918-06-05	1918-08-24
1919	1919-05-30	1919-09-07
1921	1921-04-25	1921-09-02
1922	1922-06-08	1922-09-10
1923	1923-06-18	1923-06-23
1924	1924-06-19	1924-09-01
1925	1925-04-24	1925-09-12
1926	1926-07-02	1926-08-12
1927	1927-05-22	1927-10-06
1928	1928-07-08	1928-08-29
1929	1929-06-19	1929-09-08
1930	1930-06-03	1930-09-26
1931	1931-05-28	1931-09-21
1932	1932-06-05	1932-09-02
1933	1933-06-07	1933-09-08
1934	1934-05-21	1934-07-27
1935	1935-07-01	1935-08-15
1936	1936-05-11	1936-09-23
1937	1937-05-31	1937-09-03
1938	1938-07-08	1938-08-16
1939	1939-05-25	1939-09-16
1940	1940-06-07	1940-08-18
1941	1941-04-20	1941-09-09
1942	1942-05-01	1942-09-15
1943	1943-06-04	1943-08-12
1944	1944-05-12	1944-08-16
1945	1945-06-14	1945-08-31
1946	1946-06-30	1946-09-09
1947	1947-06-10	1947-10-22
1948	1948-05-11	1948-08-29
1949	1949-05-05	1949-08-11
1950	1950-06-26	1950-08-17
1951	1951-06-02	1951-08-31
1952	1952-06-15	1952-09-14
1953	1953-06-09	1953-09-30
1954	1954-06-09	1954-09-07
1955	1955-07-03	1955-09-17
1956	1956-06-14	1956-09-01
1957	1957-04-27	1957-09-02
1958	1958-07-04	1958-07-30
1959	1959-06-29	1959-09-28
1960	1960-07-03	1960-08-30
1961	1961-06-12	1961-09-14
1962	1962-05-18	1962-09-01
1963	1963-06-26	1963-07-17
1964	1964-06-23	1964-09-11
1965	1965-07-09	1965-09-22
1966	1966-06-25	1966-07-27
1967	1967-06-13	1967-06-17
1968	1968-07-18	1968-08-23
1969	1969-06-26	1969-06-30
1970	1970-09-14	1970-09-14
1971	1971-06-28	1971-06-29
1972	1972-07-19	1972-08-24
1973	1973-08-28	1973-09-03
1974	1974-05-14	1974-07-04
1975	1975-07-23	1975-08-03
1976	1976-04-18	1976-04-18
1977	1977-07-15	1977-09-01
1978	1978-06-27	1978-06-27
1979	1979-07-31	1979-08-01
1980	1980-06-28	1980-08-11
1981	1981-07-19	1981-07-19
1982	1982-07-16	1982-07-18
1984	1984-05-21	1984-08-09
1985	1985-08-13	1985-08-14
1986	1986-07-18	1986-07-27
1987	1987-06-14	1987-08-17
1988	1988-06-21	1988-08-28
1990	1990-07-09	1990-07-10
1991	1991-05-26	1991-08-31
1993	1993-07-06	1993-09-02
1994	1994-06-13	1994-07-07
1995	1995-07-13	1995-08-17
1996	1996-05-19	1996-08-08
1997	1997-07-15	1997-08-16
1998	1998-09-14	1998-09-15
1999	1999-06-09	1999-08-18
2001	2001-07-25	2001-08-10
2002	2002-06-25	2002-09-10
2006	2006-05-29	2006-08-25
2007	2007-05-25	2007-09-07
2008	2008-06-06	2008-09-05
2009	2009-04-28	2009-08-18
2010	2010-06-28	2010-09-08
2011	2011-05-31	2011-09-04
2012	2012-05-27	2012-09-01
2013	2013-07-16	2013-09-12
2014	2014-05-14	2014-09-06
2015	2015-05-12	2015-09-09
2016	2016-06-12	2016-09-10
2017	2017-05-01	2017-08-23
2018	2018-05-16	2018-09-07
2019	2019-05-02	2019-10-03
2020	2020-06-10	2020-08-25
2021	2021-06-22	2021-08-31
2022	2022-06-14	2022-08-30
2023	2023-07-07	2023-09-07
2024	2024-06-18	2024-09-01
2025	2025-06-23	2025-08-18
2026	2026-05-19	2026-09-05

Every Fixed Threshold

Fixed thresholds at Oakland 1 SE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	116	38	1936	16
35 C (95 F): Days	10	4	1936	2
90 F (32.2 C): Days	63	20	1988	4
100 F (37.8 C): Days	1	2	1918	2
0 C (32 F): Ice days (max	122	69	2010	30
0 C (32 F): Frost days (min	119	182	1904	84
-10 C (14 F): Days with min	119	58	1895	30
-20 C (-4 F): Days with min	112	19	1904	8
-30 C (-22 F): Days with min	20	2	1912	2
-40 C (-40 F): Days with min	1	1	1912	1
20 C (68 F): Tropical nights (min	67	11	2016	3
10 mm (0.39 in): Days with 10 mm or more rain	116	62	2018	32
25 mm (0.98 in): Days with 25 mm or more rain	116	17	2017	9
50 mm (1.97 in): Days with 50 mm or more rain	64	6	1985	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1912	1
10 cm (3.9 in): Days with 10 cm or more snowfall	76	22	2010	8
25 cm (9.8 in): Days with 25 cm or more snowfall	35	5	2010	1
50 cm (19.7 in): Days with 50 cm or more snowfall	3	1	1995	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Oakland 1 SE 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Oakland 1 SE Threshold Days by Year (USC00186620)

Key Facts for Oakland 1 SE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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