Los Alamos Threshold Days by Year (USC00295084)

14 fixed thresholds counted per year at Los Alamos (USC00295084): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Los Alamos Thresholds

Los Alamos: days with 10 mm (0.39 in) or more of precipitation in 101 years, most in 1919 with 27.
Los Alamos: days with 25 mm (0.98 in) or more of precipitation in 85 years, most in 1952 with 6.
Los Alamos: days with 10 cm (3.9 in) or more of snowfall in 85 years, most in 1987 with 18.
Los Alamos: days with a maximum temperature at or below 0 C (32 F) in 83 years, most in 1949 with 46.
14 fixed thresholds have at least one qualifying day at Los Alamos.

Days at or above 30 C (86 F)

82 years with a qualifying day

Days per year at Los Alamos with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 2023.

Days at or above 30 C (86 F) per year at Los Alamos
Year	Days	Decade average
1919	9	9
1925	7	5
1926	3	5
1942	8	13.5
1948	19	13.5
1950	29	14.9
1951	16	14.9
1952	24	14.9
1953	24	14.9
1954	15	14.9
1955	4	14.9
1956	12	14.9
1957	12	14.9
1958	11	14.9
1959	2	14.9
1960	15	6.2
1961	3	6.2
1962	5	6.2
1963	11	6.2
1964	6	6.2
1965	1	6.2
1966	5	6.2
1967	1	6.2
1968	8	6.2
1969	7	6.2
1970	7	11.1
1971	8	11.1
1972	3	11.1
1973	15	11.1
1974	9	11.1
1975	2	11.1
1976	11	11.1
1977	18	11.1
1978	15	11.1
1979	23	11.1
1980	44	18.1
1981	25	18.1
1982	12	18.1
1983	17	18.1
1984	16	18.1
1985	16	18.1
1986	15	18.1
1987	12	18.1
1988	7	18.1
1989	17	18.1
1990	16	9.1
1991	5	9.1
1992	3	9.1
1993	12	9.1
1994	15	9.1
1995	12	9.1
1996	9	9.1
1997	5	9.1
1998	9	9.1
1999	5	9.1
2000	25	23.5
2001	17	23.5
2002	40	23.5
2003	33	23.5
2004	14	23.5
2005	31	23.5
2006	21	23.5
2007	27	23.5
2008	15	23.5
2009	12	23.5
2010	21	25.8
2011	38	25.8
2012	44	25.8
2013	19	25.8
2014	11	25.8
2015	10	25.8
2016	37	25.8
2017	23	25.8
2018	31	25.8
2019	24	25.8
2020	44	38.9
2021	31	38.9
2022	20	38.9
2023	46	38.9
2024	34	38.9
2025	38	38.9
2026	59	38.9

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

First to last qualifying date each year at Los Alamos
Year	First date	Last date
1919	1919-06-10	1919-07-26
1925	1925-07-14	1925-07-25
1926	1926-07-19	1926-08-27
1942	1942-06-18	1942-08-02
1948	1948-07-08	1948-09-07
1950	1950-05-31	1950-09-03
1951	1951-05-27	1951-08-15
1952	1952-06-08	1952-09-06
1953	1953-06-11	1953-08-10
1954	1954-06-19	1954-08-03
1955	1955-06-08	1955-07-10
1956	1956-05-31	1956-09-17
1957	1957-06-26	1957-07-09
1958	1958-06-24	1958-08-11
1959	1959-06-12	1959-07-11
1960	1960-06-18	1960-07-30
1961	1961-06-25	1961-08-08
1962	1962-08-08	1962-08-15
1963	1963-06-26	1963-07-31
1964	1964-07-02	1964-07-07
1965	1965-07-20	1965-07-20
1966	1966-06-25	1966-08-01
1967	1967-07-01	1967-07-01
1968	1968-06-20	1968-07-21
1969	1969-06-28	1969-08-07
1970	1970-06-24	1970-07-13
1971	1971-07-05	1971-07-18
1972	1972-07-14	1972-07-31
1973	1973-06-25	1973-08-19
1974	1974-06-14	1974-06-30
1975	1975-06-29	1975-06-30
1976	1976-06-20	1976-07-10
1977	1977-05-30	1977-09-08
1978	1978-06-20	1978-08-12
1979	1979-06-28	1979-09-10
1980	1980-06-13	1980-09-04
1981	1981-06-07	1981-08-26
1982	1982-06-24	1982-08-16
1983	1983-06-18	1983-09-06
1984	1984-05-22	1984-09-09
1985	1985-06-07	1985-07-13
1986	1986-06-16	1986-08-22
1987	1987-06-23	1987-08-19
1988	1988-06-21	1988-08-14
1989	1989-06-16	1989-08-05
1990	1990-06-05	1990-08-29
1991	1991-06-25	1991-07-07
1992	1992-07-05	1992-07-07
1993	1993-06-25	1993-07-27
1994	1994-06-17	1994-08-13
1995	1995-07-08	1995-09-05
1996	1996-06-05	1996-08-14
1997	1997-06-30	1997-07-14
1998	1998-06-02	1998-08-23
1999	1999-06-28	1999-07-05
2000	2000-05-23	2000-09-16
2001	2001-06-10	2001-08-27
2002	2002-05-30	2002-08-27
2003	2003-06-28	2003-08-21
2004	2004-06-07	2004-08-04
2005	2005-05-21	2005-08-10
2006	2006-06-04	2006-07-25
2007	2007-06-19	2007-08-25
2008	2008-06-02	2008-08-04
2009	2009-07-11	2009-08-22
2010	2010-06-05	2010-07-21
2011	2011-06-06	2011-08-31
2012	2012-06-01	2012-09-06
2013	2013-06-08	2013-09-01
2014	2014-06-03	2014-09-03
2015	2015-06-20	2015-07-26
2016	2016-06-08	2016-07-28
2017	2017-06-10	2017-09-04
2018	2018-06-05	2018-08-06
2019	2019-06-30	2019-09-06
2020	2020-06-04	2020-09-07
2021	2021-06-10	2021-09-13
2022	2022-05-27	2022-09-05
2023	2023-06-22	2023-09-08
2024	2024-06-05	2024-08-23
2025	2025-06-14	2025-08-22
2026	2026-06-10	2026-09-08

Every Fixed Threshold

Fixed thresholds at Los Alamos
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	82	46	2023	59
35 C (95 F): Days	8	2	1998	2
90 F (32.2 C): Days	57	23	2023	22
0 C (32 F): Ice days (max	83	46	1949	4
0 C (32 F): Frost days (min	83	184	1976	62
-10 C (14 F): Days with min	83	46	1964	3
-20 C (-4 F): Days with min	28	5	1971	1
20 C (68 F): Tropical nights (min	9	5	1950	3
10 mm (0.39 in): Days with 10 mm or more rain	101	27	1919	4
25 mm (0.98 in): Days with 25 mm or more rain	85	6	1952	1
50 mm (1.97 in): Days with 50 mm or more rain	14	2	1957	1
10 cm (3.9 in): Days with 10 cm or more snowfall	85	18	1987	7
25 cm (9.8 in): Days with 25 cm or more snowfall	37	4	1975	1
50 cm (19.7 in): Days with 50 cm or more snowfall	4	3	1987	3

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 Los Alamos 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 Alamos Threshold Days by Year (USC00295084)

Key Facts for Los Alamos Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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