Columbia Threshold Days by Year (USC00221865)

16 fixed thresholds counted per year at Columbia (USC00221865): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Columbia Thresholds

Columbia: days with 10 mm (0.39 in) or more of precipitation in 119 years, most in 1949 with 65.
Columbia: days with 25 mm (0.98 in) or more of precipitation in 119 years, most in 1983 with 32.
Columbia: days with 50 mm (1.97 in) or more of precipitation in 117 years, most in 2021 with 15.
Columbia: days with a maximum temperature at or above 30 C (86 F) in 110 years, most in 1935 with 186.
16 fixed thresholds have at least one qualifying day at Columbia.

Days at or above 30 C (86 F)

110 years with a qualifying day

Days per year at Columbia with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 186 in 1935.

Days at or above 30 C (86 F) per year at Columbia
Year	Days	Decade average
1916	147	137.3
1917	125	137.3
1918	143	137.3
1919	134	137.3
1920	144	151.1
1921	143	151.1
1922	150	151.1
1923	132	151.1
1924	156	151.1
1925	165	151.1
1926	156	151.1
1927	171	151.1
1928	144	151.1
1929	150	151.1
1931	140	153.8
1932	140	153.8
1933	156	153.8
1934	152	153.8
1935	186	153.8
1936	172	153.8
1937	154	153.8
1938	135	153.8
1939	149	153.8
1940	130	139.1
1941	163	139.1
1942	130	139.1
1943	144	139.1
1944	147	139.1
1945	145	139.1
1946	124	139.1
1947	140	139.1
1948	136	139.1
1949	132	139.1
1950	124	137.6
1951	143	137.6
1952	130	137.6
1953	132	137.6
1954	147	137.6
1955	160	137.6
1956	132	137.6
1957	137	137.6
1958	135	137.6
1959	136	137.6
1960	142	140.6
1961	122	140.6
1962	165	140.6
1963	177	140.6
1964	132	140.6
1965	158	140.6
1966	124	140.6
1967	120	140.6
1968	132	140.6
1969	134	140.6
1970	141	138.5
1971	132	138.5
1972	152	138.5
1973	150	138.5
1974	134	138.5
1975	137	138.5
1976	124	138.5
1977	142	138.5
1978	142	138.5
1979	131	138.5
1980	137	131.9
1981	142	131.9
1982	148	131.9
1983	116	131.9
1984	146	131.9
1985	138	131.9
1986	148	131.9
1987	128	131.9
1988	93	131.9
1989	123	131.9
1990	142	129.3
1991	120	129.3
1992	115	129.3
1993	129	129.3
1994	120	129.3
1995	143	129.3
1996	120	129.3
1997	118	129.3
1998	140	129.3
1999	146	129.3
2000	130	136.1
2001	119	136.1
2002	132	136.1
2003	121	136.1
2004	139	136.1
2005	148	136.1
2006	147	136.1
2007	147	136.1
2008	134	136.1
2009	144	136.1
2010	160	141
2011	143	141
2012	135	141
2013	128	141
2014	128	141
2015	135	141
2016	149	141
2017	132	141
2018	156	141
2019	144	141
2020	135	152.1
2021	130	152.1
2022	164	152.1
2023	166	152.1
2024	168	152.1
2025	167	152.1
2026	135	152.1

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

First to last qualifying date each year at Columbia
Year	First date	Last date
1916	1916-03-21	1916-10-15
1917	1917-04-24	1917-10-29
1918	1918-02-25	1918-10-08
1919	1919-04-23	1919-11-08
1920	1920-04-22	1920-10-21
1921	1921-03-17	1921-10-27
1922	1922-02-12	1922-11-06
1923	1923-03-12	1923-10-03
1924	1924-04-13	1924-11-10
1925	1925-03-11	1925-10-24
1926	1926-04-05	1926-10-24
1927	1927-04-01	1927-11-02
1928	1928-03-13	1928-10-15
1929	1929-03-23	1929-10-19
1931	1931-04-16	1931-10-26
1932	1932-02-09	1932-10-01
1933	1933-03-14	1933-11-04
1934	1934-04-03	1934-11-10
1935	1935-03-20	1935-11-10
1936	1936-03-15	1936-11-19
1937	1937-04-15	1937-10-30
1938	1938-03-03	1938-11-17
1939	1939-03-23	1939-10-27
1940	1940-04-01	1940-10-31
1941	1941-04-11	1941-10-31
1942	1942-04-18	1942-10-18
1943	1943-04-02	1943-09-15
1944	1944-03-14	1944-10-27
1945	1945-03-06	1945-11-09
1946	1946-03-31	1946-11-01
1947	1947-03-24	1947-10-24
1948	1948-03-20	1948-10-16
1949	1949-04-25	1949-10-24
1950	1950-04-25	1950-10-31
1951	1951-03-10	1951-10-21
1952	1952-04-01	1952-10-05
1953	1953-04-18	1953-10-23
1954	1954-03-24	1954-10-14
1955	1955-03-05	1955-11-15
1956	1956-03-06	1956-10-20
1957	1957-02-04	1957-09-25
1958	1958-04-04	1958-10-22
1959	1959-04-07	1959-10-13
1960	1960-04-07	1960-10-16
1961	1961-04-28	1961-10-13
1962	1962-04-11	1962-10-20
1963	1963-03-13	1963-10-28
1964	1964-04-22	1964-10-01
1965	1965-03-29	1965-10-17
1966	1966-04-01	1966-10-10
1967	1967-03-11	1967-10-06
1968	1968-04-19	1968-10-14
1969	1969-04-03	1969-10-19
1970	1970-04-17	1970-10-04
1971	1971-04-19	1971-10-05
1972	1972-04-07	1972-10-19
1973	1973-05-08	1973-10-26
1974	1974-03-29	1974-10-14
1975	1975-04-24	1975-10-29
1976	1976-03-05	1976-10-14
1977	1977-02-25	1977-10-02
1978	1978-03-31	1978-11-01
1979	1979-04-16	1979-11-09
1980	1980-04-22	1980-10-17
1981	1981-03-30	1981-09-30
1982	1982-03-15	1982-10-10
1983	1983-05-13	1983-10-21
1984	1984-04-20	1984-11-02
1985	1985-03-11	1985-10-24
1986	1986-03-10	1986-11-09
1987	1987-04-19	1987-10-19
1988	1988-04-05	1988-09-30
1989	1989-02-16	1989-10-16
1990	1990-04-23	1990-10-17
1991	1991-03-26	1991-10-23
1992	1992-04-13	1992-10-27
1993	1993-05-06	1993-10-21
1994	1994-04-28	1994-10-09
1995	1995-03-23	1995-10-28
1996	1996-05-05	1996-09-27
1997	1997-03-30	1997-10-13
1998	1998-05-08	1998-10-30
1999	1999-04-08	1999-10-16
2000	2000-04-20	2000-10-06
2001	2001-04-11	2001-09-24
2002	2002-03-17	2002-10-07
2003	2003-04-30	2003-11-05
2004	2004-04-11	2004-11-02
2005	2005-04-23	2005-11-08
2006	2006-04-02	2006-10-19
2007	2007-04-30	2007-10-19
2008	2008-03-16	2008-10-17
2009	2009-04-14	2009-10-30
2010	2010-04-06	2010-10-28
2011	2011-03-27	2011-10-18
2012	2012-04-02	2012-10-06
2013	2013-04-17	2013-10-15
2014	2014-04-27	2014-10-14
2015	2015-04-03	2015-10-23
2016	2016-04-01	2016-11-05
2017	2017-03-22	2017-10-16
2018	2018-02-23	2018-10-20
2019	2019-04-11	2019-10-31
2020	2020-03-26	2020-10-29
2021	2021-03-29	2021-10-22
2022	2022-03-19	2022-11-10
2023	2023-02-24	2023-10-30
2024	2024-04-14	2024-11-10
2025	2025-02-07	2025-11-23
2026	2026-02-20	2026-09-04

Every Fixed Threshold

Fixed thresholds at Columbia
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	110	186	1935	135
35 C (95 F): Days	109	91	1925	63
40 C (104 F): Days	16	15	1925	3
90 F (32.2 C): Days	110	145	1925	90
100 F (37.8 C): Days	64	44	1925	22
0 C (32 F): Ice days (max	20	4	1940	1
0 C (32 F): Frost days (min	101	70	1963	24
-10 C (14 F): Days with min	25	5	1940	2
20 C (68 F): Tropical nights (min	101	142	2018	98
25 C (77 F): Days with min	59	44	2023	11
10 mm (0.39 in): Days with 10 mm or more rain	119	65	1949	22
25 mm (0.98 in): Days with 25 mm or more rain	119	32	1983	16
50 mm (1.97 in): Days with 50 mm or more rain	117	15	2021	6
100 mm (3.94 in): Days with 100 mm or more rain	56	3	1947	1
200 mm (7.87 in): Days with 200 mm or more rain	6	1	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	2	1	1977	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.

Download the Data

Data for Columbia 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Columbia Threshold Days by Year (USC00221865)

Key Facts for Columbia Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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