Indianola 1SW Threshold Days by Year (USC00134063)

21 fixed thresholds counted per year at Indianola 1SW (USC00134063): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Indianola 1SW Thresholds

Indianola 1SW: nights with a minimum temperature at or below 0 C (32 F) in 122 years, most in 1979 with 162.
Indianola 1SW: nights with a minimum temperature at or below -10 C (14 F) in 122 years, most in 1978 with 70.
Indianola 1SW: nights with a minimum temperature at or above 20 C (68 F) in 122 years, most in 1934 with 53.
Indianola 1SW: days with 10 mm (0.39 in) or more of precipitation in 122 years, most in 2010 with 46.
21 fixed thresholds have at least one qualifying day at Indianola 1SW.

Days at or above 30 C (86 F)

121 years with a qualifying day

Days per year at Indianola 1SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 98 in 1934.

Days at or above 30 C (86 F) per year at Indianola 1SW
Year	Days	Decade average
1894	86	56.8
1896	42	56.8
1898	48	56.8
1899	51	56.8
1900	62	39.7
1901	71	39.7
1902	22	39.7
1903	25	39.7
1904	21	39.7
1905	35	39.7
1906	45	39.7
1907	31	39.7
1908	39	39.7
1909	46	39.7
1910	55	52.5
1911	78	52.5
1912	39	52.5
1913	69	52.5
1914	68	52.5
1915	17	52.5
1916	62	52.5
1917	31	52.5
1918	52	52.5
1919	54	52.5
1921	72	49.4
1922	50	49.4
1923	45	49.4
1924	27	49.4
1925	63	49.4
1926	53	49.4
1927	48	49.4
1928	40	49.4
1929	47	49.4
1930	75	78.4
1931	79	78.4
1932	48	78.4
1933	82	78.4
1934	98	78.4
1935	57	78.4
1936	92	78.4
1937	74	78.4
1938	85	78.4
1939	94	78.4
1940	67	64
1941	72	64
1942	59	64
1943	58	64
1944	76	64
1945	47	64
1946	46	64
1947	73	64
1948	71	64
1949	71	64
1950	43	60.3
1951	37	60.3
1952	68	60.3
1953	70	60.3
1954	75	60.3
1955	78	60.3
1956	88	60.3
1957	53	60.3
1958	40	60.3
1959	51	60.3
1960	43	50.2
1961	40	50.2
1962	51	50.2
1963	60	50.2
1964	51	50.2
1965	45	50.2
1966	55	50.2
1967	50	50.2
1968	58	50.2
1969	49	50.2
1970	70	63.6
1971	80	63.6
1972	59	63.6
1973	60	63.6
1974	47	63.6
1975	70	63.6
1976	59	63.6
1977	65	63.6
1978	66	63.6
1979	60	63.6
1980	78	47.6
1981	36	47.6
1982	29	47.6
1984	56	47.6
1985	52	47.6
1986	40	47.6
1989	42	47.6
1990	44	34.2
1991	59	34.2
1992	18	34.2
1993	26	34.2
1994	38	34.2
1995	33	34.2
1996	19	34.2
1997	39	34.2
1998	33	34.2
1999	33	34.2
2000	41	36.8
2001	31	36.8
2002	46	36.8
2003	40	36.8
2004	14	36.8
2005	61	36.8
2006	45	36.8
2007	53	36.8
2008	21	36.8
2009	16	36.8
2010	44	48.1
2011	45	48.1
2012	75	48.1
2013	51	48.1
2014	24	48.1
2015	26	48.1
2016	60	48.1
2018	64	48.1
2019	44	48.1
2020	59	61
2021	63	61

For each year, a bar from the first to the last day at Indianola 1SW meeting 30 C (86 F).

First to last qualifying date each year at Indianola 1SW
Year	First date	Last date
1894	1894-04-28	1894-09-27
1896	1896-04-15	1896-08-15
1898	1898-04-16	1898-09-29
1899	1899-06-01	1899-10-22
1900	1900-05-11	1900-10-04
1901	1901-05-02	1901-09-24
1902	1902-04-21	1902-08-02
1903	1903-06-29	1903-08-24
1904	1904-06-19	1904-09-28
1905	1905-06-04	1905-09-28
1906	1906-04-24	1906-09-16
1907	1907-03-21	1907-09-18
1908	1908-06-20	1908-09-22
1909	1909-05-05	1909-10-03
1910	1910-03-23	1910-09-18
1911	1911-05-09	1911-09-28
1912	1912-05-27	1912-10-05
1913	1913-05-28	1913-09-07
1914	1914-05-24	1914-09-05
1915	1915-05-12	1915-09-15
1916	1916-04-12	1916-10-07
1917	1917-05-18	1917-09-05
1918	1918-05-03	1918-09-02
1919	1919-06-13	1919-09-20
1921	1921-05-20	1921-09-22
1922	1922-06-08	1922-10-05
1923	1923-06-01	1923-09-05
1924	1924-05-05	1924-08-30
1925	1925-04-22	1925-09-20
1926	1926-04-30	1926-09-21
1927	1927-05-23	1927-10-25
1928	1928-05-09	1928-10-10
1929	1929-04-04	1929-09-27
1930	1930-04-10	1930-10-10
1931	1931-04-08	1931-09-20
1932	1932-05-13	1932-10-02
1933	1933-05-18	1933-09-25
1934	1934-05-05	1934-10-12
1935	1935-06-12	1935-09-24
1936	1936-04-30	1936-09-22
1937	1937-05-28	1937-10-29
1938	1938-03-21	1938-10-15
1939	1939-04-24	1939-10-25
1940	1940-05-13	1940-10-26
1941	1941-05-14	1941-09-20
1942	1942-04-29	1942-10-08
1943	1943-05-29	1943-09-05
1944	1944-05-14	1944-09-19
1945	1945-05-20	1945-09-24
1946	1946-06-06	1946-09-26
1947	1947-05-14	1947-10-21
1948	1948-04-18	1948-09-20
1949	1949-04-25	1949-10-08
1950	1950-04-22	1950-10-31
1951	1951-06-01	1951-10-03
1952	1952-04-28	1952-09-30
1953	1953-05-25	1953-10-15
1954	1954-04-24	1954-10-03
1955	1955-04-18	1955-09-18
1956	1956-05-09	1956-10-13
1957	1957-06-04	1957-09-01
1958	1958-05-11	1958-10-15
1959	1959-06-08	1959-09-20
1960	1960-04-22	1960-09-08
1961	1961-06-10	1961-09-10
1962	1962-05-05	1962-10-10
1963	1963-05-08	1963-10-10
1964	1964-04-16	1964-09-09
1965	1965-04-30	1965-09-09
1966	1966-05-05	1966-09-01
1967	1967-04-16	1967-10-03
1968	1968-05-02	1968-10-14
1969	1969-05-27	1969-10-04
1970	1970-04-28	1970-09-21
1971	1971-06-03	1971-10-02
1972	1972-04-06	1972-09-20
1973	1973-06-07	1973-09-22
1974	1974-05-20	1974-08-27
1975	1975-05-18	1975-10-14
1976	1976-05-20	1976-10-03
1977	1977-05-18	1977-09-09
1978	1978-05-25	1978-09-19
1979	1979-05-17	1979-09-12
1980	1980-04-20	1980-09-21
1981	1981-04-02	1981-09-30
1982	1982-06-25	1982-09-12
1984	1984-06-05	1984-09-24
1985	1985-04-18	1985-09-19
1986	1986-03-29	1986-09-27
1989	1989-04-24	1989-08-22
1990	1990-06-12	1990-10-05
1991	1991-03-26	1991-09-29
1992	1992-04-30	1992-08-24
1993	1993-06-17	1993-09-12
1994	1994-04-18	1994-10-01
1995	1995-06-08	1995-09-14
1996	1996-05-18	1996-09-05
1997	1997-05-19	1997-10-07
1998	1998-05-20	1998-09-27
1999	1999-06-08	1999-10-16
2000	2000-04-06	2000-09-19
2001	2001-06-12	2001-09-04
2002	2002-04-16	2002-10-01
2003	2003-04-02	2003-10-21
2004	2004-04-17	2004-09-15
2005	2005-06-07	2005-10-05
2006	2006-05-28	2006-10-04
2007	2007-04-30	2007-10-07
2008	2008-05-26	2008-09-03
2009	2009-06-18	2009-08-15
2010	2010-05-25	2010-10-10
2011	2011-04-04	2011-09-13
2012	2012-04-02	2012-09-13
2013	2013-05-01	2013-10-03
2014	2014-04-13	2014-09-05
2015	2015-06-10	2015-09-17
2016	2016-05-07	2016-10-18
2018	2018-05-24	2018-10-04
2019	2019-04-22	2019-10-02
2020	2020-06-02	2020-10-10
2021	2021-05-02	2021-09-30

Every Fixed Threshold

Fixed thresholds at Indianola 1SW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	121	98	1934	63
35 C (95 F): Days	103	57	1934	4
40 C (104 F): Days	17	19	1934	2
45 C (113 F): Days	1	1	1934	1
90 F (32.2 C): Days	121	82	1934	26
100 F (37.8 C): Days	37	31	1934	9
110 F (43.3 C): Days	3	5	1934	1
0 C (32 F): Ice days (max	121	74	2010	37
0 C (32 F): Frost days (min	122	162	1979	121
-10 C (14 F): Days with min	122	70	1978	40
-20 C (-4 F): Days with min	120	30	1936	14
-30 C (-22 F): Days with min	25	6	1996	2
20 C (68 F): Tropical nights (min	122	53	1934	23
25 C (77 F): Days with min	42	14	1934	2
10 mm (0.39 in): Days with 10 mm or more rain	122	46	2010	28
25 mm (0.98 in): Days with 25 mm or more rain	122	18	1993	12
50 mm (1.97 in): Days with 50 mm or more rain	100	6	2008	5
100 mm (3.94 in): Days with 100 mm or more rain	17	2	2015	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1977	1
10 cm (3.9 in): Days with 10 cm or more snowfall	83	6	2013	1
25 cm (9.8 in): Days with 25 cm or more snowfall	14	1	1910	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Indianola 1SW 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).

Indianola 1SW Threshold Days by Year (USC00134063)

Key Facts for Indianola 1SW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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