Sioux Ctr 2 SE Threshold Days by Year (USC00137700)

18 fixed thresholds counted per year at Sioux Ctr 2 SE (USC00137700): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sioux Ctr 2 SE Thresholds

Sioux Ctr 2 SE: days with 10 mm (0.39 in) or more of precipitation in 108 years, most in 2018 with 37.
Sioux Ctr 2 SE: days with 25 mm (0.98 in) or more of precipitation in 108 years, most in 2018 with 15.
Sioux Ctr 2 SE: days with a maximum temperature at or above 30 C (86 F) in 103 years, most in 2012 with 91.
Sioux Ctr 2 SE: days with a maximum temperature at or below 0 C (32 F) in 103 years, most in 1978 with 99.
18 fixed thresholds have at least one qualifying day at Sioux Ctr 2 SE.

Days at or above 30 C (86 F)

103 years with a qualifying day

Days per year at Sioux Ctr 2 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 91 in 2012.

Days at or above 30 C (86 F) per year at Sioux Ctr 2 SE
Year	Days	Decade average
1900	55	27.6
1902	18	27.6
1903	14	27.6
1904	15	27.6
1905	29	27.6
1906	24	27.6
1907	27	27.6
1908	32	27.6
1909	34	27.6
1910	31	37.4
1911	51	37.4
1912	30	37.4
1913	56	37.4
1914	43	37.4
1915	3	37.4
1916	36	37.4
1917	31	37.4
1918	44	37.4
1919	49	37.4
1923	37	31.3
1924	9	31.3
1926	45	31.3
1927	29	31.3
1928	31	31.3
1929	37	31.3
1930	50	58.1
1931	78	58.1
1932	50	58.1
1933	56	58.1
1934	63	58.1
1935	46	58.1
1936	74	58.1
1937	53	58.1
1938	53	58.1
1956	66	55
1957	43	55
1959	56	55
1960	37	40.7
1961	36	40.7
1962	29	40.7
1963	54	40.7
1964	52	40.7
1965	38	40.7
1966	45	40.7
1967	39	40.7
1968	42	40.7
1969	35	40.7
1970	74	53.2
1971	43	53.2
1972	46	53.2
1973	48	53.2
1974	46	53.2
1975	48	53.2
1976	74	53.2
1977	55	53.2
1978	56	53.2
1979	42	53.2
1980	65	50.2
1981	36	50.2
1982	30	50.2
1983	71	50.2
1984	35	50.2
1985	42	50.2
1986	40	50.2
1987	62	50.2
1988	77	50.2
1989	44	50.2
1990	53	41.5
1991	58	41.5
1992	19	41.5
1993	25	41.5
1994	43	41.5
1995	50	41.5
1996	25	41.5
1997	49	41.5
1998	49	41.5
1999	44	41.5
2000	57	53.8
2001	56	53.8
2002	62	53.8
2003	53	53.8
2004	36	53.8
2005	62	53.8
2006	70	53.8
2007	71	53.8
2008	41	53.8
2009	30	53.8
2010	62	55.8
2011	64	55.8
2012	91	55.8
2013	61	55.8
2014	23	55.8
2015	46	55.8
2016	56	55.8
2017	52	55.8
2018	47	55.8
2020	62	59.9
2021	58	59.9
2022	71	59.9
2023	65	59.9
2024	40	59.9
2025	63	59.9
2026	60	59.9

For each year, a bar from the first to the last day at Sioux Ctr 2 SE meeting 30 C (86 F).

First to last qualifying date each year at Sioux Ctr 2 SE
Year	First date	Last date
1900	1900-05-11	1900-10-03
1902	1902-05-17	1902-08-04
1903	1903-06-28	1903-08-24
1904	1904-05-22	1904-09-17
1905	1905-06-03	1905-09-11
1906	1906-04-24	1906-09-10
1907	1907-05-12	1907-09-18
1908	1908-06-21	1908-09-23
1909	1909-05-05	1909-08-27
1910	1910-04-28	1910-09-17
1911	1911-05-09	1911-09-17
1912	1912-06-25	1912-09-08
1913	1913-04-30	1913-09-07
1914	1914-05-25	1914-09-05
1915	1915-05-11	1915-07-13
1916	1916-05-05	1916-09-05
1917	1917-05-18	1917-08-26
1918	1918-05-03	1918-10-12
1919	1919-06-17	1919-09-19
1923	1923-06-01	1923-09-26
1924	1924-05-05	1924-08-30
1926	1926-04-29	1926-09-17
1927	1927-06-08	1927-09-17
1928	1928-05-09	1928-10-10
1929	1929-04-04	1929-09-03
1930	1930-06-02	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	1934-04-30	1934-10-12
1935	1935-07-02	1935-09-24
1936	1936-05-05	1936-10-05
1937	1937-06-19	1937-09-22
1938	1938-06-05	1938-10-03
1956	1956-05-18	1956-10-12
1957	1957-06-04	1957-09-02
1959	1959-05-01	1959-09-08
1960	1960-04-21	1960-09-07
1961	1961-05-12	1961-09-09
1962	1962-04-21	1962-08-27
1963	1963-05-07	1963-10-06
1964	1964-04-16	1964-09-10
1965	1965-04-29	1965-08-17
1966	1966-05-04	1966-08-30
1967	1967-04-16	1967-10-03
1968	1968-03-30	1968-08-24
1969	1969-05-15	1969-08-30
1970	1970-04-26	1970-09-21
1971	1971-06-03	1971-09-08
1972	1972-05-17	1972-09-20
1973	1973-05-20	1973-08-31
1974	1974-05-20	1974-09-27
1975	1975-06-26	1975-10-14
1976	1976-05-19	1976-10-01
1977	1977-04-09	1977-09-09
1978	1978-05-25	1978-09-12
1979	1979-05-17	1979-09-11
1980	1980-04-20	1980-10-08
1981	1981-04-25	1981-09-30
1982	1982-05-03	1982-08-20
1983	1983-05-27	1983-09-27
1984	1984-06-22	1984-09-20
1985	1985-04-17	1985-09-08
1986	1986-05-31	1986-08-26
1987	1987-04-18	1987-09-27
1988	1988-04-07	1988-09-17
1989	1989-04-27	1989-09-01
1990	1990-04-22	1990-10-06
1991	1991-04-05	1991-09-08
1992	1992-04-30	1992-10-03
1993	1993-06-10	1993-10-07
1994	1994-04-18	1994-09-15
1995	1995-06-06	1995-10-12
1996	1996-05-17	1996-08-26
1997	1997-05-16	1997-10-07
1998	1998-05-05	1998-09-27
1999	1999-05-28	1999-09-25
2000	2000-05-04	2000-10-01
2001	2001-05-09	2001-10-03
2002	2002-04-15	2002-10-01
2003	2003-04-15	2003-10-20
2004	2004-04-16	2004-09-19
2005	2005-06-06	2005-10-05
2006	2006-04-13	2006-10-04
2007	2007-04-29	2007-10-07
2008	2008-06-02	2008-09-26
2009	2009-04-23	2009-08-15
2010	2010-05-22	2010-10-09
2011	2011-05-09	2011-10-05
2012	2012-04-01	2012-09-12
2013	2013-05-14	2013-09-27
2014	2014-05-07	2014-09-20
2015	2015-05-04	2015-10-12
2016	2016-05-06	2016-09-24
2017	2017-05-08	2017-09-24
2018	2018-05-17	2018-10-04
2020	2020-05-02	2020-09-23
2021	2021-05-01	2021-09-29
2022	2022-05-11	2022-09-21
2023	2023-04-12	2023-10-03
2024	2024-04-13	2024-09-30
2025	2025-03-29	2025-10-05
2026	2026-03-21	2026-10-12

Every Fixed Threshold

Fixed thresholds at Sioux Ctr 2 SE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	103	91	2012	60
35 C (95 F): Days	82	40	1936	2
40 C (104 F): Days	6	5	1936	2
90 F (32.2 C): Days	102	61	1936	28
100 F (37.8 C): Days	27	15	1936	3
0 C (32 F): Ice days (max	103	99	1978	26
0 C (32 F): Frost days (min	103	189	1907	86
-10 C (14 F): Days with min	103	88	1978	27
-20 C (-4 F): Days with min	103	42	1936	6
-30 C (-22 F): Days with min	45	15	1936	2
20 C (68 F): Tropical nights (min	103	33	1983	19
25 C (77 F): Days with min	8	4	1936	2
10 mm (0.39 in): Days with 10 mm or more rain	108	37	2018	17
25 mm (0.98 in): Days with 25 mm or more rain	108	15	2018	5
50 mm (1.97 in): Days with 50 mm or more rain	72	4	1926	2
100 mm (3.94 in): Days with 100 mm or more rain	7	2	1900	1
10 cm (3.9 in): Days with 10 cm or more snowfall	74	7	1936	3
25 cm (9.8 in): Days with 25 cm or more snowfall	6	1	1959	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1900.

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Data for Sioux Ctr 2 SE 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).

Sioux Ctr 2 SE Threshold Days by Year (USC00137700)

Key Facts for Sioux Ctr 2 SE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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