Los Angeles Intl AP Threshold Days by Year (USW00023174)

13 fixed thresholds counted per year at Los Angeles Intl AP (USW00023174): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Los Angeles Intl AP Thresholds

Los Angeles Intl AP: days with 10 mm (0.39 in) or more of precipitation in 82 years, most in 1998 with 23.
Los Angeles Intl AP: days with a maximum temperature at or above 30 C (86 F) in 81 years, most in 1958 with 24.
Los Angeles Intl AP: days with a maximum temperature at or above 90 F (32.2 C) in 77 years, most in 2017 with 12.
Los Angeles Intl AP: nights with a minimum temperature at or above 20 C (68 F) in 75 years, most in 2018 with 52.
13 fixed thresholds have at least one qualifying day at Los Angeles Intl AP.

Days at or above 30 C (86 F)

81 years with a qualifying day

Days per year at Los Angeles Intl AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 24 in 1958.

Days at or above 30 C (86 F) per year at Los Angeles Intl AP
Year	Days	Decade average
1945	7	6.8
1946	3	6.8
1947	7	6.8
1948	2	6.8
1949	15	6.8
1950	8	12.8
1951	7	12.8
1952	5	12.8
1953	15	12.8
1954	12	12.8
1955	11	12.8
1956	14	12.8
1957	10	12.8
1958	24	12.8
1959	22	12.8
1960	7	8.1
1961	7	8.1
1962	3	8.1
1963	10	8.1
1964	8	8.1
1965	14	8.1
1966	8	8.1
1967	14	8.1
1968	8	8.1
1969	2	8.1
1970	10	11.6
1971	18	11.6
1972	12	11.6
1973	11	11.6
1974	6	11.6
1975	8	11.6
1976	15	11.6
1977	4	11.6
1978	17	11.6
1979	15	11.6
1980	7	11.8
1981	16	11.8
1982	15	11.8
1983	14	11.8
1984	14	11.8
1985	15	11.8
1986	8	11.8
1987	8	11.8
1988	10	11.8
1989	11	11.8
1990	15	9.8
1991	7	9.8
1992	5	9.8
1993	3	9.8
1994	16	9.8
1995	9	9.8
1996	12	9.8
1997	16	9.8
1998	6	9.8
1999	9	9.8
2000	2	10
2002	6	10
2003	5	10
2004	13	10
2005	13	10
2006	11	10
2007	9	10
2008	20	10
2009	11	10
2010	7	13.8
2011	3	13.8
2012	10	13.8
2013	9	13.8
2014	22	13.8
2015	18	13.8
2016	19	13.8
2017	21	13.8
2018	13	13.8
2019	16	13.8
2020	19	11
2021	12	11
2022	15	11
2023	3	11
2024	5	11
2025	3	11
2026	20	11

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

First to last qualifying date each year at Los Angeles Intl AP
Year	First date	Last date
1945	1945-08-17	1945-11-03
1946	1946-09-18	1946-10-11
1947	1947-04-12	1947-12-26
1948	1948-09-11	1948-09-27
1949	1949-06-03	1949-11-18
1950	1950-09-03	1950-11-23
1951	1951-01-25	1951-11-06
1952	1952-03-27	1952-11-04
1953	1953-01-23	1953-12-14
1954	1954-01-31	1954-11-21
1955	1955-03-07	1955-10-29
1956	1956-05-15	1956-11-26
1957	1957-06-04	1957-10-27
1958	1958-01-17	1958-12-10
1959	1959-03-11	1959-12-02
1960	1960-04-02	1960-10-05
1961	1961-09-04	1961-11-05
1962	1962-01-07	1962-10-30
1963	1963-02-03	1963-09-29
1964	1964-03-17	1964-11-30
1965	1965-07-30	1965-10-25
1966	1966-04-15	1966-11-02
1967	1967-05-14	1967-10-31
1968	1968-04-09	1968-10-24
1969	1969-08-10	1969-10-07
1970	1970-05-02	1970-10-02
1971	1971-01-18	1971-11-03
1972	1972-03-04	1972-10-06
1973	1973-06-20	1973-10-30
1974	1974-09-22	1974-11-24
1975	1975-01-14	1975-11-13
1976	1976-01-15	1976-11-08
1977	1977-02-12	1977-11-25
1978	1978-03-16	1978-10-23
1979	1979-05-12	1979-12-04
1980	1980-06-28	1980-12-30
1981	1981-04-05	1981-11-02
1982	1982-08-06	1982-10-23
1983	1983-01-12	1983-10-26
1984	1984-05-08	1984-09-19
1985	1985-04-01	1985-10-15
1986	1986-01-11	1986-11-02
1987	1987-03-04	1987-10-27
1988	1988-02-11	1988-10-10
1989	1989-04-04	1989-11-20
1990	1990-06-26	1990-11-11
1991	1991-05-05	1991-11-12
1992	1992-07-08	1992-10-23
1993	1993-05-09	1993-11-02
1994	1994-03-13	1994-10-11
1995	1995-02-02	1995-10-02
1996	1996-01-11	1996-11-10
1997	1997-03-10	1997-11-03
1998	1998-08-30	1998-10-06
1999	1999-04-17	1999-10-31
2000	2000-09-12	2000-09-13
2002	2002-02-21	2002-11-21
2003	2003-01-31	2003-10-27
2004	2004-03-08	2004-09-23
2005	2005-07-20	2005-11-20
2006	2006-01-06	2006-11-20
2007	2007-02-05	2007-11-15
2008	2008-04-12	2008-11-17
2009	2009-04-19	2009-10-26
2010	2010-09-26	2010-11-05
2011	2011-05-03	2011-10-13
2012	2012-03-04	2012-11-05
2013	2013-05-03	2013-11-14
2014	2014-01-17	2014-11-27
2015	2015-03-14	2015-11-22
2016	2016-02-08	2016-11-13
2017	2017-05-20	2017-12-09
2018	2018-01-13	2018-11-02
2019	2019-07-25	2019-11-18
2020	2020-02-28	2020-11-16
2021	2021-01-15	2021-11-21
2022	2022-02-12	2022-10-20
2023	2023-09-10	2023-11-01
2024	2024-09-05	2024-09-09
2025	2025-02-27	2025-10-29
2026	2026-02-04	2026-10-07

Every Fixed Threshold

Fixed thresholds at Los Angeles Intl AP
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	81	24	1958	20
35 C (95 F): Days	53	6	2017	4
40 C (104 F): Days	9	3	1963	1
90 F (32.2 C): Days	77	12	2017	9
100 F (37.8 C): Days	26	4	1963	3
110 F (43.3 C): Days	1	1	1963	1
0 C (32 F): Frost days (min	5	3	1949	1
20 C (68 F): Tropical nights (min	75	52	2018	61
25 C (77 F): Days with min	5	2	1963	2
10 mm (0.39 in): Days with 10 mm or more rain	82	23	1998	6
25 mm (0.98 in): Days with 25 mm or more rain	75	11	2023	1
50 mm (1.97 in): Days with 50 mm or more rain	32	3	2023	2
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1956	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

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Data for Los Angeles Intl AP 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).

Los Angeles Intl AP Threshold Days by Year (USW00023174)

Key Facts for Los Angeles Intl AP Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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