Altus Dam Threshold Days by Year (USC00340184)

18 fixed thresholds counted per year at Altus Dam (USC00340184): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Altus Dam Thresholds

Altus Dam: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 2015 with 40.
Altus Dam: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 2004 with 16.
Altus Dam: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 1956 with 165.
Altus Dam: days with a maximum temperature at or above 35 C (95 F) in 63 years, most in 1998 with 110.
18 fixed thresholds have at least one qualifying day at Altus Dam.

Days at or above 30 C (86 F)

63 years with a qualifying day

Days per year at Altus Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 165 in 1956.

Days at or above 30 C (86 F) per year at Altus Dam
Year	Days	Decade average
1946	105	118.5
1947	124	118.5
1948	133	118.5
1949	112	118.5
1950	116	135.4
1951	126	135.4
1952	134	135.4
1953	137	135.4
1954	143	135.4
1955	141	135.4
1956	165	135.4
1958	121	135.4
1967	137	127.5
1969	118	127.5
1970	132	114.3
1972	132	114.3
1973	106	114.3
1974	105	114.3
1975	107	114.3
1976	96	114.3
1977	115	114.3
1978	120	114.3
1979	116	114.3
1980	125	110.3
1981	122	110.3
1982	111	110.3
1983	89	110.3
1984	125	110.3
1985	108	110.3
1986	102	110.3
1987	87	110.3
1988	118	110.3
1989	116	110.3
1990	117	112.3
1991	119	112.3
1992	65	112.3
1993	110	112.3
1994	135	112.3
1995	103	112.3
1996	111	112.3
1997	107	112.3
1998	140	112.3
1999	116	112.3
2000	126	117.2
2001	124	117.2
2002	126	117.2
2003	126	117.2
2004	110	117.2
2005	124	117.2
2006	130	117.2
2007	101	117.2
2008	99	117.2
2009	106	117.2
2010	122	123.8
2011	140	123.8
2012	132	123.8
2013	125	123.8
2014	132	123.8
2015	120	123.8
2016	114	123.8
2017	104	123.8
2018	130	123.8
2019	119	123.8

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

First to last qualifying date each year at Altus Dam
Year	First date	Last date
1946	1946-03-30	1946-09-25
1947	1947-04-02	1947-10-21
1948	1948-04-07	1948-10-16
1949	1949-04-08	1949-10-09
1950	1950-04-02	1950-10-31
1951	1951-03-06	1951-10-21
1952	1952-04-07	1952-10-13
1953	1953-03-20	1953-10-12
1954	1954-02-14	1954-12-04
1955	1955-03-03	1955-12-25
1956	1956-03-05	1956-10-14
1958	1958-04-23	1958-09-26
1967	1967-03-10	1967-10-13
1969	1969-04-08	1969-10-03
1970	1970-04-26	1970-11-26
1972	1972-03-26	1972-10-17
1973	1973-05-09	1973-10-07
1974	1974-03-02	1974-09-27
1975	1975-03-20	1975-10-13
1976	1976-03-02	1976-10-04
1977	1977-03-18	1977-10-21
1978	1978-03-19	1978-10-21
1979	1979-04-25	1979-10-22
1980	1980-04-21	1980-11-09
1981	1981-02-21	1981-10-15
1982	1982-03-13	1982-10-19
1983	1983-04-27	1983-10-17
1984	1984-04-25	1984-10-09
1985	1985-05-12	1985-09-23
1986	1986-04-07	1986-09-29
1987	1987-04-17	1987-10-09
1988	1988-03-11	1988-11-10
1989	1989-03-11	1989-10-23
1990	1990-05-09	1990-10-17
1991	1991-03-06	1991-10-24
1992	1992-04-12	1992-10-14
1993	1993-04-13	1993-10-08
1994	1994-03-18	1994-11-04
1995	1995-03-20	1995-10-23
1996	1996-02-22	1996-10-17
1997	1997-03-22	1997-10-09
1998	1998-04-15	1998-10-15
1999	1999-04-21	1999-10-27
2000	2000-04-06	2000-10-04
2001	2001-04-09	2001-11-02
2002	2002-03-14	2002-10-04
2003	2003-03-25	2003-10-25
2004	2004-04-16	2004-10-22
2005	2005-03-13	2005-11-09
2006	2006-03-02	2006-10-07
2007	2007-06-03	2007-10-21
2008	2008-03-31	2008-10-05
2009	2009-03-06	2009-10-01
2010	2010-04-01	2010-10-18
2011	2011-03-18	2011-10-26
2012	2012-04-02	2012-11-03
2013	2013-04-09	2013-10-12
2014	2014-04-03	2014-10-28
2015	2015-03-26	2015-10-16
2016	2016-04-06	2016-10-18
2017	2017-02-12	2017-11-18
2018	2018-04-12	2018-10-06
2019	2019-04-10	2019-10-15

Every Fixed Threshold

Fixed thresholds at Altus Dam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	63	165	1956	119
35 C (95 F): Days	63	110	1998	48
40 C (104 F): Days	52	64	2011	1
45 C (113 F): Days	1	1	1994	1
90 F (32.2 C): Days	63	137	1956	85
100 F (37.8 C): Days	62	84	2011	15
110 F (43.3 C): Days	12	10	2011	4
0 C (32 F): Ice days (max	63	25	1978	6
0 C (32 F): Frost days (min	60	106	1993	85
-10 C (14 F): Days with min	59	22	1979	3
-20 C (-4 F): Days with min	4	2	1947	1
20 C (68 F): Tropical nights (min	60	113	1998	98
25 C (77 F): Days with min	58	63	2011	18
10 mm (0.39 in): Days with 10 mm or more rain	64	40	2015	25
25 mm (0.98 in): Days with 25 mm or more rain	64	16	2004	13
50 mm (1.97 in): Days with 50 mm or more rain	54	7	2015	2
100 mm (3.94 in): Days with 100 mm or more rain	11	2	1980	1
10 cm (3.9 in): Days with 10 cm or more snowfall	13	2	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 1946.

Download the Data

Data for Altus Dam 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Altus Dam Threshold Days by Year (USC00340184)

Key Facts for Altus Dam Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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