Cortez Threshold Days by Year (USC00051886)

16 fixed thresholds counted per year at Cortez (USC00051886): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cortez Thresholds

Cortez: days with 10 mm (0.39 in) or more of precipitation in 95 years, most in 1941 with 19.
Cortez: days with a maximum temperature at or above 30 C (86 F) in 93 years, most in 2024 with 100.
Cortez: days with a maximum temperature at or above 90 F (32.2 C) in 93 years, most in 2020 with 73.
Cortez: nights with a minimum temperature at or below 0 C (32 F) in 93 years, most in 1932 with 207.
16 fixed thresholds have at least one qualifying day at Cortez.

Days at or above 30 C (86 F)

93 years with a qualifying day

Days per year at Cortez with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 100 in 2024.

Days at or above 30 C (86 F) per year at Cortez
Year	Days	Decade average
1914	34	34
1930	49	65.4
1931	62	65.4
1932	64	65.4
1933	62	65.4
1934	65	65.4
1935	77	65.4
1936	71	65.4
1937	83	65.4
1938	55	65.4
1939	66	65.4
1940	65	65
1941	43	65
1942	67	65
1943	77	65
1944	73	65
1945	72	65
1946	75	65
1947	52	65
1948	68	65
1949	58	65
1950	62	67.1
1951	78	67.1
1952	73	67.1
1953	68	67.1
1954	57	67.1
1955	59	67.1
1956	76	67.1
1957	43	67.1
1958	76	67.1
1959	79	67.1
1960	83	56.7
1961	64	56.7
1962	65	56.7
1963	50	56.7
1964	46	56.7
1965	38	56.7
1966	67	56.7
1967	51	56.7
1968	38	56.7
1969	65	56.7
1970	61	55.7
1971	61	55.7
1972	54	55.7
1973	46	55.7
1974	70	55.7
1978	56	55.7
1979	42	55.7
1980	62	45.8
1981	56	45.8
1982	21	45.8
1983	37	45.8
1984	55	45.8
1985	36	45.8
1987	49	45.8
1988	53	45.8
1989	43	45.8
1990	61	60.6
1991	57	60.6
1992	44	60.6
1993	46	60.6
1994	81	60.6
1995	66	60.6
1996	86	60.6
1998	63	60.6
1999	41	60.6
2000	81	71.9
2001	75	71.9
2002	81	71.9
2003	79	71.9
2004	63	71.9
2005	49	71.9
2006	75	71.9
2007	80	71.9
2008	74	71.9
2009	62	71.9
2010	73	80.2
2011	78	80.2
2012	93	80.2
2013	85	80.2
2014	81	80.2
2015	67	80.2
2016	72	80.2
2017	79	80.2
2018	96	80.2
2019	78	80.2
2020	93	88
2021	90	88
2022	79	88
2023	73	88
2024	100	88
2025	84	88
2026	97	88

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

First to last qualifying date each year at Cortez
Year	First date	Last date
1914	1914-06-17	1914-09-19
1930	1930-06-07	1930-08-31
1931	1931-06-12	1931-09-06
1932	1932-04-18	1932-09-06
1933	1933-05-27	1933-09-17
1934	1934-05-21	1934-09-05
1935	1935-06-07	1935-09-21
1936	1936-06-07	1936-09-09
1937	1937-05-14	1937-09-21
1938	1938-05-27	1938-08-30
1939	1939-06-03	1939-09-04
1940	1940-06-12	1940-09-07
1941	1941-06-16	1941-09-06
1942	1942-06-17	1942-09-03
1943	1943-05-01	1943-10-07
1944	1944-06-09	1944-09-23
1945	1945-06-20	1945-09-14
1946	1946-06-03	1946-09-13
1947	1947-05-02	1947-09-06
1948	1948-05-16	1948-09-15
1949	1949-06-15	1949-09-22
1950	1950-06-15	1950-09-03
1951	1951-05-26	1951-09-18
1952	1952-06-06	1952-09-18
1953	1953-06-09	1953-09-15
1954	1954-06-17	1954-09-22
1955	1955-06-07	1955-09-08
1956	1956-05-18	1956-09-20
1957	1957-06-03	1957-09-08
1958	1958-05-24	1958-09-11
1959	1959-05-12	1959-09-12
1960	1960-06-01	1960-09-13
1961	1961-06-08	1961-08-29
1962	1962-06-19	1962-09-19
1963	1963-06-20	1963-08-25
1964	1964-06-15	1964-08-25
1965	1965-07-02	1965-08-28
1966	1966-06-14	1966-09-23
1967	1967-05-23	1967-09-05
1968	1968-06-02	1968-09-11
1969	1969-05-26	1969-09-07
1970	1970-06-18	1970-09-02
1971	1971-06-15	1971-09-13
1972	1972-06-01	1972-08-24
1973	1973-06-09	1973-08-24
1974	1974-05-27	1974-09-11
1978	1978-06-11	1978-09-07
1979	1979-06-13	1979-09-10
1980	1980-06-10	1980-09-19
1981	1981-06-07	1981-08-31
1982	1982-06-24	1982-09-06
1983	1983-06-19	1983-09-07
1984	1984-05-14	1984-09-15
1985	1985-06-08	1985-09-03
1987	1987-06-08	1987-09-02
1988	1988-06-05	1988-09-10
1989	1989-05-25	1989-09-03
1990	1990-06-05	1990-09-16
1991	1991-06-10	1991-09-04
1992	1992-06-19	1992-09-11
1993	1993-06-14	1993-08-25
1994	1994-05-31	1994-09-10
1995	1995-06-13	1995-09-07
1996	1996-05-12	1996-09-10
1998	1998-06-02	1998-09-08
1999	1999-06-17	1999-09-10
2000	2000-05-23	2000-09-18
2001	2001-05-26	2001-09-29
2002	2002-05-30	2002-09-06
2003	2003-05-23	2003-09-28
2004	2004-06-03	2004-09-13
2005	2005-05-21	2005-09-03
2006	2006-05-15	2006-09-06
2007	2007-06-04	2007-09-10
2008	2008-05-20	2008-09-09
2009	2009-06-23	2009-09-10
2010	2010-05-28	2010-10-03
2011	2011-06-05	2011-09-30
2012	2012-05-22	2012-09-11
2013	2013-06-03	2013-09-08
2014	2014-05-29	2014-09-27
2015	2015-06-01	2015-10-02
2016	2016-06-04	2016-09-20
2017	2017-06-04	2017-09-14
2018	2018-05-09	2018-09-18
2019	2019-06-13	2019-09-15
2020	2020-05-19	2020-09-22
2021	2021-05-30	2021-09-19
2022	2022-05-16	2022-09-20
2023	2023-06-20	2023-09-11
2024	2024-05-29	2024-10-05
2025	2025-05-29	2025-09-11
2026	2026-03-22	2026-09-14

Every Fixed Threshold

Fixed thresholds at Cortez
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	93	100	2024	97
35 C (95 F): Days	81	26	2018	44
90 F (32.2 C): Days	93	73	2020	75
100 F (37.8 C): Days	19	7	2021	5
0 C (32 F): Ice days (max	91	31	1979	3
0 C (32 F): Frost days (min	93	207	1932	76
-10 C (14 F): Days with min	93	73	1989	9
-20 C (-4 F): Days with min	63	21	1937	1
-30 C (-22 F): Days with min	6	2	1963	1
20 C (68 F): Tropical nights (min	22	7	1943	2
25 C (77 F): Days with min	1	1	1943	1
10 mm (0.39 in): Days with 10 mm or more rain	95	19	1941	11
25 mm (0.98 in): Days with 25 mm or more rain	56	5	1957	1
50 mm (1.97 in): Days with 50 mm or more rain	2	1	2003	1
10 cm (3.9 in): Days with 10 cm or more snowfall	60	6	1968	1
25 cm (9.8 in): Days with 25 cm or more snowfall	7	2	1964	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.

Download the Data

Data for Cortez 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).

Cortez Threshold Days by Year (USC00051886)

Key Facts for Cortez Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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