Santaquin Chlorinator Threshold Days by Year (USC00427686)

18 fixed thresholds counted per year at Santaquin Chlorinator (USC00427686): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Santaquin Chlorinator Thresholds

Santaquin Chlorinator: nights with a minimum temperature at or below 0 C (32 F) in 102 years, most in 1975 with 178.
Santaquin Chlorinator: nights with a minimum temperature at or below -10 C (14 F) in 102 years, most in 1964 with 72.
Santaquin Chlorinator: days with a maximum temperature at or above 30 C (86 F) in 99 years, most in 2001 with 100.
Santaquin Chlorinator: days with a maximum temperature at or above 90 F (32.2 C) in 99 years, most in 2007 with 79.
18 fixed thresholds have at least one qualifying day at Santaquin Chlorinator.

Days at or above 30 C (86 F)

99 years with a qualifying day

Days per year at Santaquin Chlorinator with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 100 in 2001.

Days at or above 30 C (86 F) per year at Santaquin Chlorinator
Year	Days	Decade average
1914	55	44.8
1915	45	44.8
1916	55	44.8
1917	24	44.8
1920	25	40.4
1921	40	40.4
1926	46	40.4
1927	39	40.4
1928	52	40.4
1930	36	64.1
1931	64	64.1
1932	59	64.1
1933	63	64.1
1934	83	64.1
1935	75	64.1
1936	65	64.1
1937	70	64.1
1938	57	64.1
1939	69	64.1
1940	79	67.7
1941	51	67.7
1942	67	67.7
1943	71	67.7
1944	70	67.7
1945	50	67.7
1946	76	67.7
1947	63	67.7
1948	75	67.7
1949	75	67.7
1950	61	71.3
1951	52	71.3
1952	68	71.3
1953	75	71.3
1954	67	71.3
1955	67	71.3
1956	84	71.3
1957	72	71.3
1958	91	71.3
1959	76	71.3
1960	80	67.8
1961	75	67.8
1962	71	67.8
1963	76	67.8
1964	61	67.8
1965	39	67.8
1966	80	67.8
1967	70	67.8
1968	50	67.8
1969	76	67.8
1971	63	65.3
1972	66	65.3
1973	56	65.3
1974	90	65.3
1975	60	65.3
1978	57	65.3
1983	59	65.3
1984	62	65.3
1985	60	65.3
1986	62	65.3
1987	60	65.3
1988	84	65.3
1989	70	65.3
1990	81	69.2
1991	67	69.2
1992	70	69.2
1993	42	69.2
1994	86	69.2
1995	66	69.2
1996	84	69.2
1997	64	69.2
1998	64	69.2
1999	68	69.2
2000	91	83.9
2001	100	83.9
2002	87	83.9
2003	90	83.9
2004	75	83.9
2005	80	83.9
2006	96	83.9
2007	95	83.9
2008	63	83.9
2009	62	83.9
2010	71	68.7
2011	57	68.7
2012	69	68.7
2013	70	68.7
2014	59	68.7
2015	72	68.7
2016	75	68.7
2017	78	68.7
2018	72	68.7
2019	64	68.7
2020	92	79
2021	79	79
2022	79	79
2023	48	79
2024	90	79
2025	80	79
2026	85	79

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

First to last qualifying date each year at Santaquin Chlorinator
Year	First date	Last date
1914	1914-05-30	1914-09-21
1915	1915-05-17	1915-09-22
1916	1916-04-24	1916-09-02
1917	1917-06-08	1917-09-19
1920	1920-06-22	1920-08-24
1921	1921-06-10	1921-08-27
1926	1926-06-05	1926-08-30
1927	1927-05-15	1927-09-03
1928	1928-05-29	1928-09-18
1930	1930-06-07	1930-09-21
1931	1931-06-12	1931-09-12
1932	1932-06-22	1932-09-17
1933	1933-05-30	1933-09-29
1934	1934-05-06	1934-09-18
1935	1935-06-07	1935-09-22
1936	1936-05-13	1936-09-09
1937	1937-05-17	1937-09-19
1938	1938-06-02	1938-09-27
1939	1939-05-29	1939-09-21
1940	1940-06-01	1940-09-27
1941	1941-05-11	1941-09-11
1942	1942-05-25	1942-09-16
1943	1943-05-26	1943-09-18
1944	1944-06-24	1944-09-22
1945	1945-06-21	1945-09-15
1946	1946-06-03	1946-09-13
1947	1947-05-03	1947-09-28
1948	1948-05-16	1948-09-15
1949	1949-06-11	1949-09-24
1950	1950-06-05	1950-10-13
1951	1951-05-06	1951-09-17
1952	1952-06-05	1952-09-28
1953	1953-06-10	1953-09-30
1954	1954-05-19	1954-09-22
1955	1955-06-07	1955-09-14
1956	1956-05-31	1956-09-26
1957	1957-06-03	1957-09-30
1958	1958-05-19	1958-09-22
1959	1959-06-05	1959-09-10
1960	1960-05-11	1960-09-28
1961	1961-05-28	1961-09-06
1962	1962-06-10	1962-09-19
1963	1963-06-20	1963-10-03
1964	1964-05-16	1964-09-08
1965	1965-06-21	1965-08-28
1966	1966-05-27	1966-09-25
1967	1967-05-22	1967-09-21
1968	1968-05-29	1968-09-10
1969	1969-05-25	1969-09-29
1971	1971-06-16	1971-09-11
1972	1972-05-15	1972-09-17
1973	1973-06-07	1973-09-19
1974	1974-05-08	1974-10-02
1975	1975-06-06	1975-10-05
1978	1978-05-14	1978-08-31
1983	1983-05-26	1983-09-19
1984	1984-05-13	1984-09-19
1985	1985-06-08	1985-09-04
1986	1986-05-30	1986-09-09
1987	1987-06-05	1987-09-13
1988	1988-05-25	1988-09-11
1989	1989-05-08	1989-09-30
1990	1990-06-05	1990-09-20
1991	1991-06-12	1991-09-06
1992	1992-04-30	1992-10-02
1993	1993-05-13	1993-09-12
1994	1994-05-07	1994-09-29
1995	1995-06-12	1995-09-18
1996	1996-05-14	1996-10-11
1997	1997-05-18	1997-09-15
1998	1998-06-29	1998-09-18
1999	1999-06-15	1999-09-07
2000	2000-05-06	2000-10-02
2001	2001-05-13	2001-09-29
2002	2002-05-19	2002-09-16
2003	2003-05-23	2003-09-30
2004	2004-05-05	2004-09-19
2005	2005-05-21	2005-09-21
2006	2006-05-16	2006-09-14
2007	2007-04-30	2007-09-22
2008	2008-05-19	2008-08-31
2009	2009-05-19	2009-09-29
2010	2010-06-06	2010-09-29
2011	2011-06-24	2011-10-02
2012	2012-05-22	2012-09-11
2013	2013-06-03	2013-09-07
2014	2014-05-28	2014-09-26
2015	2015-05-31	2015-09-29
2016	2016-06-03	2016-09-20
2017	2017-06-04	2017-09-13
2018	2018-06-05	2018-09-19
2019	2019-06-26	2019-09-16
2020	2020-05-30	2020-09-26
2021	2021-06-03	2021-09-17
2022	2022-05-27	2022-09-13
2023	2023-07-01	2023-09-10
2024	2024-06-06	2024-10-05
2025	2025-04-12	2025-09-11
2026	2026-03-26	2026-10-05

Every Fixed Threshold

Fixed thresholds at Santaquin Chlorinator
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	99	100	2001	85
35 C (95 F): Days	96	54	2007	34
40 C (104 F): Days	4	3	2002	2
90 F (32.2 C): Days	99	79	2007	61
100 F (37.8 C): Days	37	14	2007	8
0 C (32 F): Ice days (max	99	47	2013	2
0 C (32 F): Frost days (min	102	178	1975	66
-10 C (14 F): Days with min	102	72	1964	5
-20 C (-4 F): Days with min	53	15	1949	1
-30 C (-22 F): Days with min	1	1	1963	1
20 C (68 F): Tropical nights (min	94	25	2003	26
25 C (77 F): Days with min	9	2	1931	2
10 mm (0.39 in): Days with 10 mm or more rain	81	22	1945	7
25 mm (0.98 in): Days with 25 mm or more rain	64	5	2008	1
50 mm (1.97 in): Days with 50 mm or more rain	3	1	1946	1
10 cm (3.9 in): Days with 10 cm or more snowfall	76	14	1951	4
25 cm (9.8 in): Days with 25 cm or more snowfall	34	3	1952	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1989	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 Santaquin Chlorinator 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).

Santaquin Chlorinator Threshold Days by Year (USC00427686)

Key Facts for Santaquin Chlorinator Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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