Storm Lake Threshold Days by Year (USC00137979)

18 fixed thresholds counted per year at Storm Lake (USC00137979): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Storm Lake Thresholds

Storm Lake: days with a maximum temperature at or above 30 C (86 F) in 115 years, most in 1936 with 79.
Storm Lake: days with a maximum temperature at or below 0 C (32 F) in 115 years, most in 1969 with 95.
Storm Lake: nights with a minimum temperature at or below 0 C (32 F) in 113 years, most in 1966 with 188.
Storm Lake: nights with a minimum temperature at or below -10 C (14 F) in 113 years, most in 1978 with 95.
18 fixed thresholds have at least one qualifying day at Storm Lake.

Days at or above 30 C (86 F)

115 years with a qualifying day

Days per year at Storm Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 1936.

Days at or above 30 C (86 F) per year at Storm Lake
Year	Days	Decade average
1893	52	41
1899	30	41
1900	33	23.3
1901	56	23.3
1902	6	23.3
1903	7	23.3
1904	10	23.3
1905	22	23.3
1908	20	23.3
1909	32	23.3
1910	40	40.1
1911	58	40.1
1912	34	40.1
1913	57	40.1
1914	48	40.1
1915	4	40.1
1916	50	40.1
1917	28	40.1
1918	46	40.1
1919	36	40.1
1920	31	38.3
1921	59	38.3
1922	35	38.3
1923	38	38.3
1924	14	38.3
1925	50	38.3
1926	44	38.3
1927	39	38.3
1928	30	38.3
1929	43	38.3
1930	42	56.3
1931	64	56.3
1932	35	56.3
1933	62	56.3
1936	79	56.3
1937	65	56.3
1938	46	56.3
1939	57	56.3
1940	35	35.6
1941	43	35.6
1942	26	35.6
1943	38	35.6
1944	28	35.6
1945	25	35.6
1946	27	35.6
1947	52	35.6
1948	41	35.6
1949	41	35.6
1950	12	35.6
1951	11	35.6
1953	41	35.6
1954	37	35.6
1955	60	35.6
1956	62	35.6
1957	34	35.6
1958	23	35.6
1959	40	35.6
1960	26	26.9
1961	22	26.9
1962	17	26.9
1963	34	26.9
1964	39	26.9
1965	30	26.9
1966	32	26.9
1967	13	26.9
1968	31	26.9
1969	25	26.9
1970	47	36
1971	29	36
1972	27	36
1973	34	36
1974	32	36
1975	43	36
1976	57	36
1977	29	36
1978	39	36
1979	23	36
1980	44	34.4
1981	20	34.4
1982	15	34.4
1983	49	34.4
1984	30	34.4
1985	21	34.4
1986	22	34.4
1987	56	34.4
1988	59	34.4
1989	28	34.4
1990	30	20.4
1991	35	20.4
1992	12	20.4
1993	14	20.4
1994	18	20.4
1995	21	20.4
1996	13	20.4
2004	18	27.2
2005	42	27.2
2007	49	27.2
2008	14	27.2
2009	13	27.2
2010	42	31.2
2011	32	31.2
2012	63	31.2
2014	8	31.2
2015	14	31.2
2016	28	31.2
2017	38	31.2
2018	32	31.2
2019	24	31.2
2020	46	40.3
2021	42	40.3
2022	44	40.3
2023	40	40.3
2024	30	40.3
2025	40	40.3
2026	40	40.3

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

First to last qualifying date each year at Storm Lake
Year	First date	Last date
1893	1893-06-11	1893-09-24
1899	1899-06-12	1899-10-12
1900	1900-05-11	1900-09-09
1901	1901-06-14	1901-09-06
1902	1902-06-14	1902-08-02
1903	1903-06-30	1903-08-24
1904	1904-07-16	1904-09-09
1905	1905-06-04	1905-10-04
1908	1908-07-10	1908-10-15
1909	1909-05-05	1909-08-27
1910	1910-04-28	1910-10-16
1911	1911-05-09	1911-09-05
1912	1912-06-25	1912-09-09
1913	1913-05-28	1913-09-07
1914	1914-05-25	1914-09-05
1915	1915-05-12	1915-08-07
1916	1916-05-06	1916-09-06
1917	1917-05-18	1917-08-26
1918	1918-05-03	1918-09-01
1919	1919-06-16	1919-09-20
1920	1920-06-09	1920-10-10
1921	1921-05-20	1921-09-23
1922	1922-06-06	1922-09-08
1923	1923-06-01	1923-09-05
1924	1924-05-05	1924-08-30
1925	1925-05-20	1925-09-20
1926	1926-04-30	1926-09-17
1927	1927-04-26	1927-10-27
1928	1928-05-09	1928-10-10
1929	1929-04-04	1929-09-03
1930	1930-04-10	1930-09-13
1931	1931-05-24	1931-09-20
1932	1932-05-13	1932-09-18
1933	1933-05-18	1933-09-25
1936	1936-05-06	1936-09-22
1937	1937-05-29	1937-10-29
1938	1938-06-05	1938-10-04
1939	1939-05-04	1939-09-22
1940	1940-05-12	1940-09-22
1941	1941-05-14	1941-09-21
1942	1942-05-29	1942-10-02
1943	1943-05-29	1943-08-31
1944	1944-05-14	1944-08-13
1945	1945-06-27	1945-09-07
1946	1946-06-07	1946-09-05
1947	1947-06-27	1947-10-06
1948	1948-05-20	1948-09-19
1949	1949-04-25	1949-08-26
1950	1950-05-23	1950-08-16
1951	1951-07-07	1951-08-30
1953	1953-05-29	1953-10-02
1954	1954-04-14	1954-09-05
1955	1955-05-06	1955-09-18
1956	1956-05-21	1956-10-12
1957	1957-06-05	1957-09-01
1958	1958-06-05	1958-09-09
1959	1959-05-02	1959-09-09
1960	1960-04-23	1960-09-08
1961	1961-06-11	1961-09-03
1962	1962-05-14	1962-09-13
1963	1963-05-09	1963-10-07
1964	1964-05-18	1964-09-10
1965	1965-05-01	1965-08-26
1966	1966-06-21	1966-08-31
1967	1967-05-19	1967-08-01
1968	1968-05-03	1968-08-24
1969	1969-05-28	1969-08-31
1970	1970-04-29	1970-09-21
1971	1971-06-05	1971-09-13
1972	1972-05-21	1972-09-20
1973	1973-06-08	1973-08-31
1974	1974-05-29	1974-09-19
1975	1975-05-20	1975-10-14
1976	1976-05-21	1976-10-04
1977	1977-05-17	1977-09-07
1978	1978-05-20	1978-09-12
1979	1979-05-30	1979-09-11
1980	1980-04-21	1980-09-20
1981	1981-04-28	1981-09-30
1982	1982-06-25	1982-08-04
1983	1983-05-28	1983-09-10
1984	1984-06-02	1984-09-20
1985	1985-04-19	1985-09-19
1986	1986-06-19	1986-08-26
1987	1987-04-20	1987-09-27
1988	1988-05-15	1988-09-18
1989	1989-04-22	1989-09-01
1990	1990-05-08	1990-09-27
1991	1991-04-07	1991-09-14
1992	1992-05-01	1992-10-03
1993	1993-06-11	1993-09-13
1994	1994-04-19	1994-09-15
1995	1995-06-17	1995-08-31
1996	1996-05-18	1996-08-07
2004	2004-04-17	2004-09-20
2005	2005-06-07	2005-10-05
2007	2007-04-30	2007-10-07
2008	2008-06-08	2008-08-09
2009	2009-05-20	2009-09-17
2010	2010-04-02	2010-10-09
2011	2011-05-10	2011-10-05
2012	2012-04-02	2012-09-12
2014	2014-05-08	2014-08-22
2015	2015-06-10	2015-09-07
2016	2016-06-10	2016-09-24
2017	2017-05-09	2017-09-25
2018	2018-05-24	2018-09-21
2019	2019-05-17	2019-10-01
2020	2020-05-02	2020-09-26
2021	2021-05-02	2021-09-29
2022	2022-05-10	2022-09-21
2023	2023-05-31	2023-10-03
2024	2024-06-04	2024-10-01
2025	2025-05-12	2025-10-05
2026	2026-03-22	2026-08-31

Every Fixed Threshold

Fixed thresholds at Storm Lake
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	115	79	1936	40
35 C (95 F): Days	78	41	1936	1
40 C (104 F): Days	4	11	1936	11
90 F (32.2 C): Days	112	63	1936	14
100 F (37.8 C): Days	20	23	1936	2
0 C (32 F): Ice days (max	115	95	1969	32
0 C (32 F): Frost days (min	113	188	1966	89
-10 C (14 F): Days with min	113	95	1978	31
-20 C (-4 F): Days with min	113	42	1978	7
-30 C (-22 F): Days with min	35	14	1905	2
20 C (68 F): Tropical nights (min	111	41	1921	27
25 C (77 F): Days with min	27	7	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	62	41	1951	15
25 mm (0.98 in): Days with 25 mm or more rain	62	18	1992	3
50 mm (1.97 in): Days with 50 mm or more rain	46	4	1969	1
100 mm (3.94 in): Days with 100 mm or more rain	11	1	1954	1
10 cm (3.9 in): Days with 10 cm or more snowfall	91	8	1983	5
25 cm (9.8 in): Days with 25 cm or more snowfall	9	2	1982	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 Storm Lake 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Storm Lake Threshold Days by Year (USC00137979)

Key Facts for Storm Lake Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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