Altus Irig Rsch STN Threshold Days by Year (USC00340179)

19 fixed thresholds counted per year at Altus Irig Rsch STN (USC00340179): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Altus Irig Rsch STN Thresholds

Altus Irig Rsch STN: nights with a minimum temperature at or below 0 C (32 F) in 91 years, most in 2000 with 101.
Altus Irig Rsch STN: nights with a minimum temperature at or above 20 C (68 F) in 91 years, most in 1954 with 100.
Altus Irig Rsch STN: days with 10 mm (0.39 in) or more of precipitation in 91 years, most in 1941 with 42.
Altus Irig Rsch STN: days with 25 mm (0.98 in) or more of precipitation in 91 years, most in 1919 with 17.
19 fixed thresholds have at least one qualifying day at Altus Irig Rsch STN.

Days at or above 30 C (86 F)

85 years with a qualifying day

Days per year at Altus Irig Rsch STN with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 181 in 1963.

Days at or above 30 C (86 F) per year at Altus Irig Rsch STN
Year	Days	Decade average
1914	123	124.2
1915	98	124.2
1916	144	124.2
1917	140	124.2
1918	140	124.2
1919	100	124.2
1920	108	128.9
1921	138	128.9
1922	135	128.9
1923	117	128.9
1924	132	128.9
1926	116	128.9
1927	138	128.9
1928	147	128.9
1930	137	139.4
1931	125	139.4
1932	133	139.4
1933	146	139.4
1935	118	139.4
1936	145	139.4
1938	152	139.4
1939	159	139.4
1940	135	126
1941	116	126
1942	114	126
1943	146	126
1944	133	126
1945	122	126
1946	113	126
1947	144	126
1948	124	126
1949	113	126
1950	108	139.4
1951	131	139.4
1952	140	139.4
1953	142	139.4
1954	153	139.4
1955	153	139.4
1956	167	139.4
1957	121	139.4
1960	135	139
1961	131	139
1962	146	139
1963	181	139
1964	141	139
1965	128	139
1966	128	139
1967	146	139
1968	135	139
1969	119	139
1970	136	133.4
1971	140	133.4
1972	156	133.4
1973	125	133.4
1974	126	133.4
1975	126	133.4
1976	110	133.4
1977	135	133.4
1978	142	133.4
1979	138	133.4
1980	144	133.8
1981	138	133.8
1985	125	133.8
1986	126	133.8
1988	142	133.8
1989	128	133.8
1990	126	128.6
1993	121	128.6
1994	142	128.6
1995	120	128.6
1996	137	128.6
1997	112	128.6
1998	147	128.6
1999	124	128.6
2000	132	127.2
2001	133	127.2
2002	122	127.2
2003	127	127.2
2004	120	127.2
2005	136	127.2
2006	146	127.2
2007	113	127.2
2008	130	127.2
2009	113	127.2
2010	132	132

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

First to last qualifying date each year at Altus Irig Rsch STN
Year	First date	Last date
1914	1914-04-15	1914-11-06
1915	1915-03-24	1915-10-29
1916	1916-03-05	1916-10-08
1917	1917-02-25	1917-10-28
1918	1918-02-23	1918-10-08
1919	1919-05-03	1919-10-25
1920	1920-04-16	1920-10-12
1921	1921-03-05	1921-11-04
1922	1922-04-09	1922-10-28
1923	1923-04-07	1923-09-30
1924	1924-02-14	1924-11-06
1926	1926-05-01	1926-10-01
1927	1927-03-18	1927-11-10
1928	1928-03-12	1928-10-19
1930	1930-04-06	1930-10-11
1931	1931-05-15	1931-10-11
1932	1932-02-09	1932-10-22
1933	1933-04-04	1933-10-12
1935	1935-03-22	1935-10-19
1936	1936-02-23	1936-10-20
1938	1938-03-20	1938-10-31
1939	1939-04-09	1939-10-26
1940	1940-02-29	1940-10-24
1941	1941-04-17	1941-10-13
1942	1942-04-02	1942-11-09
1943	1943-03-15	1943-10-29
1944	1944-04-08	1944-11-01
1945	1945-03-27	1945-11-06
1946	1946-03-25	1946-09-25
1947	1947-03-31	1947-10-21
1948	1948-04-06	1948-10-16
1949	1949-04-08	1949-10-09
1950	1950-03-25	1950-10-30
1951	1951-03-06	1951-10-21
1952	1952-03-30	1952-11-01
1953	1953-03-20	1953-10-12
1954	1954-02-14	1954-12-04
1955	1955-03-03	1955-12-24
1956	1956-02-24	1956-10-14
1957	1957-02-09	1957-10-05
1960	1960-03-31	1960-10-11
1961	1961-04-04	1961-10-22
1962	1962-02-11	1962-10-22
1963	1963-02-01	1963-11-16
1964	1964-03-13	1964-10-21
1965	1965-04-03	1965-11-25
1966	1966-03-17	1966-10-13
1967	1967-01-22	1967-10-19
1968	1968-04-13	1968-10-30
1969	1969-04-08	1969-10-10
1970	1970-04-26	1970-11-26
1971	1971-03-13	1971-10-16
1972	1972-02-28	1972-10-18
1973	1973-05-09	1973-11-01
1974	1974-03-01	1974-10-17
1975	1975-03-20	1975-10-20
1976	1976-03-01	1976-10-11
1977	1977-05-04	1977-10-26
1978	1978-03-18	1978-10-22
1979	1979-04-24	1979-10-26
1980	1980-04-06	1980-11-08
1981	1981-02-20	1981-10-15
1985	1985-04-19	1985-10-08
1986	1986-02-19	1986-09-29
1988	1988-03-20	1988-11-09
1989	1989-03-10	1989-10-23
1990	1990-05-08	1990-11-01
1993	1993-04-10	1993-10-07
1994	1994-03-17	1994-10-19
1995	1995-03-19	1995-11-10
1996	1996-02-21	1996-10-20
1997	1997-03-21	1997-10-08
1998	1998-03-25	1998-10-14
1999	1999-04-19	1999-10-29
2000	2000-03-26	2000-10-05
2001	2001-04-02	2001-11-03
2002	2002-03-13	2002-10-03
2003	2003-02-02	2003-10-30
2004	2004-03-19	2004-10-24
2005	2005-03-12	2005-11-08
2006	2006-01-03	2006-10-08
2007	2007-04-24	2007-10-20
2008	2008-03-15	2008-10-11
2009	2009-02-27	2009-10-01
2010	2010-03-31	2010-11-01

Every Fixed Threshold

Fixed thresholds at Altus Irig Rsch STN
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	85	181	1963	132
35 C (95 F): Days	85	110	1956	69
40 C (104 F): Days	78	47	1998	2
45 C (113 F): Days	7	5	1936	1
90 F (32.2 C): Days	85	152	1963	101
100 F (37.8 C): Days	85	76	1998	18
110 F (43.3 C): Days	27	13	1936	1
120 F (48.9 C): Days	1	2	1936	2
0 C (32 F): Ice days (max	76	15	1949	8
0 C (32 F): Frost days (min	91	101	2000	98
-10 C (14 F): Days with min	83	17	1918	4
-20 C (-4 F): Days with min	8	2	1930	1
20 C (68 F): Tropical nights (min	91	100	1954	93
25 C (77 F): Days with min	73	22	1947	3
10 mm (0.39 in): Days with 10 mm or more rain	91	42	1941	27
25 mm (0.98 in): Days with 25 mm or more rain	91	17	1919	9
50 mm (1.97 in): Days with 50 mm or more rain	73	5	1974	2
100 mm (3.94 in): Days with 100 mm or more rain	12	2	1965	1
10 cm (3.9 in): Days with 10 cm or more snowfall	9	3	1966	2

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

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Data for Altus Irig Rsch STN 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 Irig Rsch STN Threshold Days by Year (USC00340179)

Key Facts for Altus Irig Rsch STN Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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