Marion Threshold Days by Year (USC00395228)

21 fixed thresholds counted per year at Marion (USC00395228): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Marion Thresholds

Marion: days with 10 mm (0.39 in) or more of precipitation in 114 years, most in 1915 with 33.
Marion: days with 25 mm (0.98 in) or more of precipitation in 112 years, most in 1984 with 14.
Marion: days with a maximum temperature at or above 30 C (86 F) in 92 years, most in 1936 with 97.
Marion: days with a maximum temperature at or above 90 F (32.2 C) in 92 years, most in 1931 with 73.
21 fixed thresholds have at least one qualifying day at Marion.

Days at or above 30 C (86 F)

92 years with a qualifying day

Days per year at Marion with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 97 in 1936.

Days at or above 30 C (86 F) per year at Marion
Year	Days	Decade average
1902	31	33.5
1903	20	33.5
1904	22	33.5
1905	35	33.5
1908	56	33.5
1909	37	33.5
1911	62	49.7
1912	29	49.7
1913	71	49.7
1914	55	49.7
1915	13	49.7
1916	60	49.7
1917	39	49.7
1918	57	49.7
1919	61	49.7
1920	49	54
1921	72	54
1922	65	54
1923	37	54
1924	31	54
1925	75	54
1926	62	54
1927	50	54
1928	49	54
1929	50	54
1930	53	77.2
1931	88	77.2
1932	61	77.2
1933	78	77.2
1934	87	77.2
1935	71	77.2
1936	97	77.2
1937	68	77.2
1938	72	77.2
1939	97	77.2
1940	62	58.7
1941	79	58.7
1942	48	58.7
1943	69	58.7
1944	46	58.7
1945	42	58.7
1946	49	58.7
1947	66	58.7
1948	54	58.7
1949	72	58.7
1950	34	54.1
1951	26	54.1
1952	58	54.1
1953	53	54.1
1954	46	54.1
1955	79	54.1
1956	67	54.1
1957	44	54.1
1958	60	54.1
1959	74	54.1
1960	48	47.5
1961	54	47.5
1962	29	47.5
1963	54	47.5
1964	58	47.5
1965	36	47.5
1966	49	47.5
1967	53	47.5
1968	54	47.5
1969	40	47.5
1970	77	48.8
1971	54	48.8
1972	46	48.8
1974	50	48.8
1975	43	48.8
1976	64	48.8
1977	37	48.8
1978	41	48.8
1979	27	48.8
1980	55	47.1
1981	53	47.1
1982	35	47.1
1983	66	47.1
1984	26	47.1
1985	35	47.1
1986	32	47.1
1987	55	47.1
1988	67	47.1
1990	47	26.9
1992	9	26.9
1993	11	26.9
1994	19	26.9
1995	45	26.9
1996	16	26.9
1997	25	26.9
1998	35	26.9
1999	35	26.9

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

First to last qualifying date each year at Marion
Year	First date	Last date
1902	1902-04-20	1902-08-18
1903	1903-06-27	1903-09-25
1904	1904-05-22	1904-09-17
1905	1905-06-03	1905-10-04
1908	1908-04-12	1908-10-15
1909	1909-05-05	1909-09-12
1911	1911-05-08	1911-09-16
1912	1912-05-09	1912-10-05
1913	1913-04-30	1913-10-03
1914	1914-06-05	1914-09-05
1915	1915-05-10	1915-08-16
1916	1916-05-05	1916-10-03
1917	1917-05-16	1917-08-27
1918	1918-05-02	1918-10-16
1919	1919-05-28	1919-09-26
1920	1920-05-24	1920-09-21
1921	1921-04-02	1921-09-28
1922	1922-05-05	1922-10-04
1923	1923-04-19	1923-09-05
1924	1924-04-14	1924-10-18
1925	1925-05-19	1925-09-20
1926	1926-04-29	1926-09-16
1927	1927-06-08	1927-10-26
1928	1928-05-01	1928-10-10
1929	1929-05-14	1929-09-23
1930	1930-04-09	1930-09-11
1931	1931-04-08	1931-09-13
1932	1932-05-13	1932-10-01
1933	1933-05-16	1933-10-05
1934	1934-04-29	1934-10-12
1935	1935-06-12	1935-09-24
1936	1936-04-13	1936-09-25
1937	1937-05-24	1937-09-24
1938	1938-04-30	1938-10-04
1939	1939-04-23	1939-10-06
1940	1940-04-14	1940-10-26
1941	1941-05-14	1941-09-21
1942	1942-05-27	1942-10-07
1943	1943-03-30	1943-10-08
1944	1944-05-14	1944-09-17
1945	1945-05-25	1945-10-17
1946	1946-06-06	1946-09-25
1947	1947-06-25	1947-10-21
1948	1948-05-18	1948-09-19
1949	1949-04-25	1949-09-16
1950	1950-05-22	1950-10-30
1951	1951-06-16	1951-10-01
1952	1952-05-03	1952-09-30
1953	1953-05-25	1953-10-18
1954	1954-04-14	1954-09-26
1955	1955-05-01	1955-10-10
1956	1956-05-18	1956-10-12
1957	1957-06-04	1957-09-30
1958	1958-04-16	1958-10-15
1959	1959-04-30	1959-09-14
1960	1960-04-22	1960-09-20
1961	1961-05-31	1961-09-10
1962	1962-04-24	1962-09-07
1963	1963-04-01	1963-10-05
1964	1964-04-16	1964-09-09
1965	1965-04-29	1965-08-26
1966	1966-05-05	1966-08-31
1967	1967-05-22	1967-10-01
1968	1968-03-30	1968-09-14
1969	1969-05-03	1969-09-14
1970	1970-05-07	1970-09-29
1971	1971-05-14	1971-09-14
1972	1972-05-16	1972-09-20
1974	1974-06-04	1974-10-11
1975	1975-05-20	1975-09-11
1976	1976-05-20	1976-10-01
1977	1977-04-10	1977-09-09
1978	1978-05-26	1978-09-12
1979	1979-05-29	1979-09-18
1980	1980-05-26	1980-10-10
1981	1981-04-26	1981-09-20
1982	1982-06-27	1982-09-10
1983	1983-05-28	1983-10-28
1984	1984-06-23	1984-09-20
1985	1985-04-12	1985-09-08
1986	1986-06-16	1986-08-26
1987	1987-04-20	1987-09-27
1988	1988-04-08	1988-09-18
1990	1990-04-23	1990-10-06
1992	1992-05-01	1992-10-03
1993	1993-06-22	1993-09-13
1994	1994-04-19	1994-09-15
1995	1995-06-07	1995-09-16
1996	1996-05-18	1996-08-26
1997	1997-05-18	1997-10-03
1998	1998-05-15	1998-09-19
1999	1999-06-06	1999-09-04

Every Fixed Threshold

Fixed thresholds at Marion
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	92	97	1936	35
35 C (95 F): Days	86	57	1936	1
40 C (104 F): Days	19	25	1936	1
45 C (113 F): Days	2	2	1936	1
90 F (32.2 C): Days	92	73	1931	14
100 F (37.8 C): Days	58	37	1936	2
110 F (43.3 C): Days	6	7	1936	1
0 C (32 F): Ice days (max	92	96	1978	39
0 C (32 F): Frost days (min	91	186	1976	156
-10 C (14 F): Days with min	91	101	1978	37
-20 C (-4 F): Days with min	91	57	1978	11
-30 C (-22 F): Days with min	52	16	1936	4
-40 C (-40 F): Days with min	2	1	1905	1
20 C (68 F): Tropical nights (min	90	39	1936	16
25 C (77 F): Days with min	18	3	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	114	33	1915	16
25 mm (0.98 in): Days with 25 mm or more rain	112	14	1984	6
50 mm (1.97 in): Days with 50 mm or more rain	66	5	1911	3
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1905	1
10 cm (3.9 in): Days with 10 cm or more snowfall	75	8	1969	2
25 cm (9.8 in): Days with 25 cm or more snowfall	19	2	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1902.

Download the Data

Data for Marion 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).

Marion Threshold Days by Year (USC00395228)

Key Facts for Marion Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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