Hartington Threshold Days by Year (USC00253630)

21 fixed thresholds counted per year at Hartington (USC00253630): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hartington Thresholds

Hartington: days with a maximum temperature at or above 30 C (86 F) in 122 years, most in 1936 with 102.
Hartington: days with a maximum temperature at or above 90 F (32.2 C) in 122 years, most in 1936 with 81.
Hartington: days with a maximum temperature at or below 0 C (32 F) in 122 years, most in 1978 with 87.
Hartington: days with 10 mm (0.39 in) or more of precipitation in 122 years, most in 1992 with 33.
21 fixed thresholds have at least one qualifying day at Hartington.

Days at or above 30 C (86 F)

122 years with a qualifying day

Days per year at Hartington with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 102 in 1936.

Days at or above 30 C (86 F) per year at Hartington
Year	Days	Decade average
1893	60	55.6
1894	90	55.6
1895	45	55.6
1896	39	55.6
1897	64	55.6
1898	49	55.6
1899	42	55.6
1900	54	48.9
1901	66	48.9
1902	31	48.9
1905	29	48.9
1906	49	48.9
1907	49	48.9
1908	66	48.9
1909	47	48.9
1910	63	63.1
1911	66	63.1
1912	52	63.1
1913	70	63.1
1914	74	63.1
1915	37	63.1
1916	63	63.1
1917	54	63.1
1918	78	63.1
1919	74	63.1
1920	46	59.1
1921	63	59.1
1922	67	59.1
1923	53	59.1
1924	29	59.1
1925	80	59.1
1926	82	59.1
1927	53	59.1
1928	58	59.1
1929	60	59.1
1930	66	80.2
1931	90	80.2
1932	64	80.2
1933	79	80.2
1934	87	80.2
1935	64	80.2
1936	102	80.2
1937	75	80.2
1938	80	80.2
1939	95	80.2
1940	62	55.8
1941	56	55.8
1942	53	55.8
1943	74	55.8
1944	47	55.8
1945	40	55.8
1946	57	55.8
1947	59	55.8
1948	62	55.8
1949	48	55.8
1950	31	63.3
1951	31	63.3
1952	64	63.3
1953	65	63.3
1954	60	63.3
1955	87	63.3
1956	93	63.3
1957	63	63.3
1958	59	63.3
1959	80	63.3
1960	57	66.1
1961	73	66.1
1962	62	66.1
1963	79	66.1
1964	69	66.1
1965	61	66.1
1966	63	66.1
1967	67	66.1
1968	74	66.1
1969	56	66.1
1970	85	72.6
1971	71	72.6
1972	63	72.6
1973	76	72.6
1974	69	72.6
1975	77	72.6
1976	83	72.6
1977	68	72.6
1978	73	72.6
1979	61	72.6
1980	89	61.6
1981	68	61.6
1982	52	61.6
1983	82	61.6
1984	41	61.6
1985	42	61.6
1986	41	61.6
1988	79	61.6
1989	60	61.6
1990	65	46.3
1991	65	46.3
1992	17	46.3
1993	29	46.3
1994	43	46.3
1995	57	46.3
1996	32	46.3
1997	51	46.3
1998	62	46.3
1999	42	46.3
2000	56	45.4
2001	50	45.4
2002	68	45.4
2003	47	45.4
2004	28	45.4
2005	56	45.4
2006	50	45.4
2007	54	45.4
2008	24	45.4
2009	21	45.4
2010	48	41.4
2011	47	41.4
2012	81	41.4
2013	40	41.4
2014	13	41.4
2015	32	41.4
2016	29	41.4
2021	64	64

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

First to last qualifying date each year at Hartington
Year	First date	Last date
1893	1893-05-22	1893-09-21
1894	1894-04-29	1894-09-29
1895	1895-05-04	1895-09-21
1896	1896-05-08	1896-09-08
1897	1897-05-06	1897-10-07
1898	1898-05-26	1898-09-28
1899	1899-04-12	1899-10-13
1900	1900-05-12	1900-10-06
1901	1901-04-27	1901-09-22
1902	1902-05-02	1902-09-08
1905	1905-06-03	1905-10-03
1906	1906-04-24	1906-09-10
1907	1907-05-12	1907-09-19
1908	1908-04-12	1908-10-13
1909	1909-05-05	1909-10-05
1910	1910-03-20	1910-10-16
1911	1911-05-08	1911-09-22
1912	1912-05-02	1912-10-05
1913	1913-04-30	1913-10-03
1914	1914-04-16	1914-10-17
1915	1915-04-14	1915-10-10
1916	1916-05-05	1916-10-04
1917	1917-05-16	1917-09-12
1918	1918-05-02	1918-10-16
1919	1919-05-28	1919-09-26
1920	1920-06-07	1920-09-25
1921	1921-05-20	1921-09-23
1922	1922-05-09	1922-10-04
1923	1923-04-19	1923-09-04
1924	1924-04-15	1924-10-11
1925	1925-04-12	1925-09-28
1926	1926-04-20	1926-10-17
1927	1927-04-26	1927-10-26
1928	1928-03-23	1928-10-10
1929	1929-04-04	1929-09-23
1930	1930-04-04	1930-10-10
1931	1931-04-08	1931-09-20
1932	1932-05-13	1932-10-02
1933	1933-05-16	1933-09-21
1934	1934-04-29	1934-10-08
1935	1935-06-14	1935-09-24
1936	1936-04-13	1936-09-23
1937	1937-05-29	1937-09-23
1938	1938-06-05	1938-10-16
1939	1939-04-22	1939-10-06
1940	1940-05-12	1940-09-22
1941	1941-05-14	1941-09-20
1942	1942-04-29	1942-10-07
1943	1943-03-30	1943-09-26
1944	1944-05-14	1944-09-17
1945	1945-06-13	1945-10-18
1946	1946-04-17	1946-09-26
1947	1947-06-26	1947-10-21
1948	1948-04-18	1948-09-19
1949	1949-04-26	1949-09-04
1950	1950-05-23	1950-10-31
1951	1951-06-17	1951-10-03
1952	1952-04-29	1952-10-01
1953	1953-05-26	1953-10-15
1954	1954-04-15	1954-09-28
1955	1955-04-20	1955-10-27
1956	1956-05-12	1956-10-16
1957	1957-05-07	1957-09-30
1958	1958-05-10	1958-10-19
1959	1959-04-30	1959-09-21
1960	1960-04-21	1960-10-11
1961	1961-05-11	1961-10-17
1962	1962-04-21	1962-10-14
1963	1963-04-01	1963-10-19
1964	1964-04-16	1964-09-09
1965	1965-04-22	1965-09-02
1966	1966-05-04	1966-10-08
1967	1967-04-16	1967-10-03
1968	1968-03-30	1968-09-21
1969	1969-05-14	1969-09-15
1970	1970-05-07	1970-09-29
1971	1971-05-16	1971-09-13
1972	1972-04-06	1972-09-20
1973	1973-05-20	1973-09-10
1974	1974-05-20	1974-10-10
1975	1975-05-05	1975-10-13
1976	1976-05-19	1976-09-30
1977	1977-04-09	1977-09-23
1978	1978-03-30	1978-10-20
1979	1979-05-28	1979-09-27
1980	1980-04-20	1980-10-09
1981	1981-04-02	1981-09-29
1982	1982-06-06	1982-09-11
1983	1983-05-27	1983-09-28
1984	1984-06-22	1984-09-19
1985	1985-04-11	1985-09-07
1986	1986-03-29	1986-09-03
1988	1988-04-07	1988-09-25
1989	1989-04-20	1989-10-13
1990	1990-04-22	1990-10-06
1991	1991-04-05	1991-10-22
1992	1992-04-30	1992-10-02
1993	1993-06-07	1993-10-06
1994	1994-04-17	1994-09-15
1995	1995-06-06	1995-10-11
1996	1996-05-17	1996-09-04
1997	1997-05-16	1997-10-02
1998	1998-05-04	1998-09-28
1999	1999-06-04	1999-10-27
2000	2000-05-04	2000-10-02
2001	2001-04-28	2001-10-02
2002	2002-04-15	2002-10-01
2003	2003-04-14	2003-10-19
2004	2004-04-18	2004-09-19
2005	2005-05-23	2005-10-19
2006	2006-04-14	2006-10-08
2007	2007-04-29	2007-10-08
2008	2008-06-25	2008-09-27
2009	2009-04-24	2009-08-25
2010	2010-05-23	2010-10-09
2011	2011-05-09	2011-10-07
2012	2012-03-26	2012-10-04
2013	2013-05-14	2013-09-28
2014	2014-05-31	2014-08-23
2015	2015-06-04	2015-10-12
2016	2016-06-09	2016-09-24
2021	2021-04-06	2021-09-29

Every Fixed Threshold

Fixed thresholds at Hartington
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	122	102	1936	64
35 C (95 F): Days	112	59	1936	9
40 C (104 F): Days	43	28	1936	1
45 C (113 F): Days	1	2	1936	2
90 F (32.2 C): Days	122	81	1936	36
100 F (37.8 C): Days	76	43	1936	2
110 F (43.3 C): Days	4	7	1936	1
0 C (32 F): Ice days (max	122	87	1978	42
0 C (32 F): Frost days (min	121	188	1907	148
-10 C (14 F): Days with min	121	95	1955	35
-20 C (-4 F): Days with min	119	41	1936	10
-30 C (-22 F): Days with min	37	6	1899	3
20 C (68 F): Tropical nights (min	121	53	1936	14
25 C (77 F): Days with min	41	14	1936	4
10 mm (0.39 in): Days with 10 mm or more rain	122	33	1992	18
25 mm (0.98 in): Days with 25 mm or more rain	121	14	1896	6
50 mm (1.97 in): Days with 50 mm or more rain	85	4	1999	2
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1900	1
10 cm (3.9 in): Days with 10 cm or more snowfall	108	9	1936	2
25 cm (9.8 in): Days with 25 cm or more snowfall	27	2	1917	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

Data for Hartington 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).

Hartington Threshold Days by Year (USC00253630)

Key Facts for Hartington Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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