Buttonwillow Threshold Days by Year

15 fixed thresholds counted per year at Buttonwillow (USC00041244): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Buttonwillow Thresholds

Buttonwillow: days with a maximum temperature at or above 30 C (86 F) in 81 years, most in 2001 with 162.
Buttonwillow: days with a maximum temperature at or above 35 C (95 F) in 81 years, most in 1947 with 105.
Buttonwillow: days with a maximum temperature at or above 90 F (32.2 C) in 81 years, most in 1946 with 136.
Buttonwillow: days with a maximum temperature at or above 100 F (37.8 C) in 81 years, most in 1945 with 79.
15 fixed thresholds have at least one qualifying day at Buttonwillow.

Days at or above 30 C (86 F)

81 years with a qualifying day

Days per year at Buttonwillow with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 162 in 2001.

Days at or above 30 C (86 F) per year at Buttonwillow
Year	Days	Decade average
1940	153	145.6
1941	139	145.6
1942	149	145.6
1944	142	145.6
1945	141	145.6
1946	157	145.6
1947	146	145.6
1948	138	145.6
1949	145	145.6
1950	132	128.2
1951	142	128.2
1952	124	128.2
1953	111	128.2
1954	134	128.2
1955	128	128.2
1956	119	128.2
1957	124	128.2
1958	140	128.2
1959	128	128.2
1960	141	136.5
1961	135	136.5
1962	141	136.5
1963	115	136.5
1964	136	136.5
1965	135	136.5
1966	151	136.5
1967	143	136.5
1968	134	136.5
1969	134	136.5
1970	138	136.8
1971	131	136.8
1972	129	136.8
1973	146	136.8
1974	144	136.8
1975	136	136.8
1976	116	136.8
1977	137	136.8
1978	141	136.8
1979	150	136.8
1980	132	132.9
1981	138	132.9
1982	126	132.9
1983	125	132.9
1984	144	132.9
1985	115	132.9
1986	123	132.9
1987	149	132.9
1988	138	132.9
1989	139	132.9
1990	132	134.1
1991	139	134.1
1992	149	134.1
1993	124	134.1
1994	137	134.1
1995	122	134.1
1996	146	134.1
1997	140	134.1
1998	103	134.1
1999	149	134.1
2000	151	143.2
2001	162	143.2
2002	139	143.2
2003	151	143.2
2004	150	143.2
2005	122	143.2
2006	139	143.2
2007	141	143.2
2008	141	143.2
2009	136	143.2
2010	125	132.9
2011	126	132.9
2012	117	132.9
2013	143	132.9
2014	156	132.9
2015	148	132.9
2016	135	132.9
2017	123	132.9
2018	134	132.9
2019	122	132.9
2020	142	135
2026	128	135

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

First to last qualifying date each year at Buttonwillow
Year	First date	Last date
1940	1940-04-11	1940-10-20
1941	1941-05-07	1941-11-07
1942	1942-04-19	1942-10-23
1944	1944-04-01	1944-10-28
1945	1945-04-17	1945-11-04
1946	1946-03-09	1946-10-25
1947	1947-03-15	1947-10-20
1948	1948-04-14	1948-10-23
1949	1949-04-11	1949-11-07
1950	1950-04-18	1950-10-17
1951	1951-04-11	1951-10-15
1952	1952-04-05	1952-10-14
1953	1953-04-06	1953-10-11
1954	1954-04-16	1954-10-19
1955	1955-05-11	1955-10-18
1956	1956-04-10	1956-10-02
1957	1957-04-06	1957-10-10
1958	1958-05-02	1958-10-31
1959	1959-04-03	1959-10-26
1960	1960-03-20	1960-10-06
1961	1961-04-03	1961-10-19
1962	1962-04-08	1962-10-24
1963	1963-05-17	1963-10-15
1964	1964-03-30	1964-10-23
1965	1965-04-26	1965-11-01
1966	1966-04-01	1966-11-04
1967	1967-05-08	1967-11-04
1968	1968-03-30	1968-10-29
1969	1969-03-30	1969-10-02
1970	1970-05-02	1970-10-13
1971	1971-04-05	1971-10-15
1972	1972-03-17	1972-10-08
1973	1973-04-12	1973-11-11
1974	1974-04-15	1974-10-21
1975	1975-05-10	1975-10-07
1976	1976-05-02	1976-11-08
1977	1977-04-07	1977-10-17
1978	1978-04-12	1978-10-25
1979	1979-04-06	1979-10-26
1980	1980-04-13	1980-10-25
1981	1981-04-24	1981-10-25
1982	1982-04-25	1982-10-24
1983	1983-05-16	1983-10-29
1984	1984-03-21	1984-10-11
1985	1985-05-01	1985-10-07
1986	1986-03-28	1986-10-11
1987	1987-04-11	1987-10-17
1988	1988-04-07	1988-10-24
1989	1989-04-06	1989-10-20
1990	1990-04-11	1990-10-26
1991	1991-04-08	1991-10-22
1992	1992-04-21	1992-10-14
1993	1993-04-30	1993-10-31
1994	1994-04-13	1994-10-11
1995	1995-04-25	1995-10-22
1996	1996-04-07	1996-10-13
1997	1997-03-26	1997-11-07
1998	1998-04-22	1998-10-23
1999	1999-04-16	1999-11-03
2000	2000-03-23	2000-10-10
2001	2001-03-21	2001-10-18
2002	2002-04-01	2002-10-11
2003	2003-04-01	2003-10-30
2004	2004-03-19	2004-10-16
2005	2005-04-07	2005-10-16
2006	2006-04-28	2006-10-24
2007	2007-03-13	2007-10-25
2008	2008-04-12	2008-10-24
2009	2009-04-06	2009-10-18
2010	2010-04-26	2010-11-05
2011	2011-04-01	2011-10-24
2012	2012-04-21	2012-10-30
2013	2013-04-13	2013-10-07
2014	2014-04-08	2014-10-14
2015	2015-03-15	2015-10-16
2016	2016-04-06	2016-11-11
2017	2017-03-15	2017-10-28
2018	2018-04-10	2018-10-17
2019	2019-04-19	2019-10-25
2020	2020-05-05	2020-10-21
2026	2026-03-16	2026-08-31

Every Fixed Threshold

Fixed thresholds at Buttonwillow
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	81	162	2001	128
35 C (95 F): Days	81	105	1947	81
40 C (104 F): Days	80	55	1945	24
45 C (113 F): Days	8	3	1950	1
90 F (32.2 C): Days	81	136	1946	105
100 F (37.8 C): Days	81	79	1945	55
110 F (43.3 C): Days	23	11	1961	1
0 C (32 F): Ice days (max	1	1	1962	1
0 C (32 F): Frost days (min	81	71	1948	5
-10 C (14 F): Days with min	3	3	1990	3
20 C (68 F): Tropical nights (min	81	62	2017	32
25 C (77 F): Days with min	22	6	1999	2
10 mm (0.39 in): Days with 10 mm or more rain	74	13	1998	2
25 mm (0.98 in): Days with 25 mm or more rain	20	2	1962	2
50 mm (1.97 in): Days with 50 mm or more rain	2	1	1978	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.

Download the Data

Data for Buttonwillow 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Buttonwillow Threshold Days by Year

Key Facts for Buttonwillow Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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