Winnebago Threshold Days by Year (USC00219046)

19 fixed thresholds counted per year at Winnebago (USC00219046): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Winnebago Thresholds

Winnebago: nights with a minimum temperature at or below 0 C (32 F) in 122 years, most in 1967 with 183.
Winnebago: nights with a minimum temperature at or below -10 C (14 F) in 122 years, most in 1955 with 106.
Winnebago: nights with a minimum temperature at or below -20 C (-4 F) in 122 years, most in 1978 with 55.
Winnebago: nights with a minimum temperature at or above 20 C (68 F) in 121 years, most in 1921 with 36.
19 fixed thresholds have at least one qualifying day at Winnebago.

Days at or above 30 C (86 F)

120 years with a qualifying day

Days per year at Winnebago with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 66 in 1936.

Days at or above 30 C (86 F) per year at Winnebago
Year	Days	Decade average
1899	38	38
1903	12	25.7
1904	17	25.7
1905	36	25.7
1907	28	25.7
1908	30	25.7
1909	31	25.7
1911	51	44
1912	33	44
1913	55	44
1914	51	44
1915	29	44
1916	51	44
1917	38	44
1920	22	29.5
1921	39	29.5
1922	42	29.5
1923	41	29.5
1924	18	29.5
1925	36	29.5
1926	27	29.5
1927	24	29.5
1928	20	29.5
1929	26	29.5
1930	45	53.4
1931	62	53.4
1932	29	53.4
1933	55	53.4
1934	65	53.4
1935	46	53.4
1936	66	53.4
1937	56	53.4
1938	45	53.4
1939	65	53.4
1940	38	35.2
1941	51	35.2
1942	25	35.2
1943	35	35.2
1944	29	35.2
1945	26	35.2
1946	24	35.2
1947	45	35.2
1948	36	35.2
1949	43	35.2
1950	17	31.7
1951	13	31.7
1952	46	31.7
1953	34	31.7
1954	27	31.7
1955	50	31.7
1956	31	31.7
1957	23	31.7
1958	28	31.7
1959	48	31.7
1960	32	27.1
1961	31	27.1
1962	19	27.1
1963	36	27.1
1964	38	27.1
1965	16	27.1
1966	36	27.1
1967	13	27.1
1968	25	27.1
1969	25	27.1
1970	39	35.1
1971	28	35.1
1972	29	35.1
1973	35	35.1
1974	27	35.1
1975	49	35.1
1976	45	35.1
1977	38	35.1
1978	38	35.1
1979	23	35.1
1980	44	34.2
1981	21	34.2
1982	16	34.2
1983	47	34.2
1984	25	34.2
1985	30	34.2
1987	39	34.2
1988	61	34.2
1989	25	34.2
1990	26	18.6
1991	28	18.6
1992	7	18.6
1993	9	18.6
1994	14	18.6
1995	27	18.6
1996	12	18.6
1997	19	18.6
1998	19	18.6
1999	25	18.6
2000	21	28.9
2001	39	28.9
2002	40	28.9
2003	27	28.9
2004	14	28.9
2005	36	28.9
2006	37	28.9
2007	36	28.9
2008	22	28.9
2009	17	28.9
2010	43	30.6
2011	40	30.6
2012	52	30.6
2013	35	30.6
2014	10	30.6
2015	20	30.6
2016	23	30.6
2017	33	30.6
2018	29	30.6
2019	21	30.6
2020	34	38.6
2021	49	38.6
2022	37	38.6
2023	52	38.6
2024	29	38.6
2025	37	38.6
2026	32	38.6

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

First to last qualifying date each year at Winnebago
Year	First date	Last date
1899	1899-05-27	1899-09-12
1903	1903-05-22	1903-09-23
1904	1904-05-20	1904-09-17
1905	1905-06-01	1905-10-04
1907	1907-05-12	1907-09-18
1908	1908-07-10	1908-09-22
1909	1909-06-04	1909-09-10
1911	1911-05-08	1911-09-04
1912	1912-05-22	1912-10-05
1913	1913-04-30	1913-09-07
1914	1914-05-25	1914-09-30
1915	1915-05-11	1915-09-06
1916	1916-05-05	1916-10-07
1917	1917-05-16	1917-09-16
1920	1920-06-09	1920-09-25
1921	1921-06-16	1921-09-01
1922	1922-05-10	1922-10-04
1923	1923-06-02	1923-09-26
1924	1924-04-24	1924-08-30
1925	1925-05-20	1925-09-19
1926	1926-05-06	1926-09-17
1927	1927-06-24	1927-09-14
1928	1928-05-09	1928-10-11
1929	1929-05-28	1929-09-03
1930	1930-05-21	1930-10-10
1931	1931-04-08	1931-09-20
1932	1932-05-14	1932-08-30
1933	1933-05-18	1933-09-25
1934	1934-04-30	1934-10-11
1935	1935-06-13	1935-09-24
1936	1936-05-06	1936-09-22
1937	1937-05-29	1937-09-22
1938	1938-06-21	1938-09-23
1939	1939-04-24	1939-09-22
1940	1940-05-13	1940-09-21
1941	1941-05-15	1941-09-22
1942	1942-05-30	1942-09-17
1943	1943-05-29	1943-09-28
1944	1944-05-15	1944-09-18
1945	1945-06-23	1945-09-10
1946	1946-06-07	1946-08-17
1947	1947-06-10	1947-10-15
1948	1948-05-21	1948-09-20
1949	1949-04-26	1949-08-27
1950	1950-05-24	1950-08-17
1951	1951-07-08	1951-08-31
1952	1952-04-29	1952-09-28
1953	1953-05-30	1953-10-03
1954	1954-04-15	1954-09-02
1955	1955-05-03	1955-09-19
1956	1956-05-13	1956-10-13
1957	1957-05-02	1957-09-02
1958	1958-05-11	1958-10-16
1959	1959-05-02	1959-09-09
1960	1960-04-23	1960-09-08
1961	1961-05-12	1961-09-11
1962	1962-04-25	1962-08-28
1963	1963-05-08	1963-10-07
1964	1964-04-17	1964-09-10
1965	1965-05-03	1965-08-18
1966	1966-05-27	1966-09-02
1967	1967-05-19	1967-08-18
1968	1968-05-01	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	1972-05-18	1972-08-30
1973	1973-06-09	1973-09-02
1974	1974-06-04	1974-09-27
1975	1975-05-20	1975-10-14
1976	1976-05-20	1976-09-13
1977	1977-04-09	1977-09-08
1978	1978-05-20	1978-09-12
1979	1979-05-18	1979-09-06
1980	1980-04-22	1980-09-20
1981	1981-04-28	1981-09-11
1982	1982-05-05	1982-08-20
1983	1983-06-11	1983-09-09
1984	1984-06-27	1984-09-20
1985	1985-04-18	1985-09-20
1987	1987-04-20	1987-09-05
1988	1988-05-15	1988-09-19
1989	1989-06-07	1989-08-23
1990	1990-05-08	1990-09-14
1991	1991-04-07	1991-09-02
1992	1992-05-01	1992-08-10
1993	1993-06-12	1993-08-27
1994	1994-04-19	1994-09-15
1995	1995-06-16	1995-08-31
1996	1996-05-18	1996-08-07
1997	1997-06-16	1997-10-07
1998	1998-05-15	1998-09-20
1999	1999-05-29	1999-09-07
2000	2000-05-05	2000-09-15
2001	2001-05-15	2001-10-03
2002	2002-04-16	2002-09-10
2003	2003-04-15	2003-10-20
2004	2004-04-19	2004-09-20
2005	2005-06-08	2005-10-04
2006	2006-04-14	2006-10-04
2007	2007-04-30	2007-10-07
2008	2008-05-26	2008-09-27
2009	2009-04-24	2009-08-15
2010	2010-05-23	2010-10-10
2011	2011-05-11	2011-10-06
2012	2012-05-18	2012-09-12
2013	2013-05-15	2013-09-28
2014	2014-06-01	2014-09-05
2015	2015-05-04	2015-10-12
2016	2016-05-07	2016-09-23
2017	2017-05-15	2017-09-25
2018	2018-05-25	2018-09-17
2019	2019-04-22	2019-10-01
2020	2020-06-03	2020-09-26
2021	2021-04-06	2021-09-30
2022	2022-05-10	2022-09-21
2023	2023-04-13	2023-10-04
2024	2024-04-14	2024-10-01
2025	2025-05-10	2025-10-05
2026	2026-04-23	2026-10-13

Every Fixed Threshold

Fixed thresholds at Winnebago
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	120	66	1936	32
35 C (95 F): Days	92	24	1934	1
40 C (104 F): Days	4	4	1936	1
90 F (32.2 C): Days	118	48	1936	13
100 F (37.8 C): Days	23	11	1936	2
0 C (32 F): Ice days (max	120	104	1996	38
0 C (32 F): Frost days (min	122	183	1967	92
-10 C (14 F): Days with min	122	106	1955	38
-20 C (-4 F): Days with min	122	55	1978	10
-30 C (-22 F): Days with min	55	11	1936	1
20 C (68 F): Tropical nights (min	121	36	1921	14
25 C (77 F): Days with min	8	2	1937	1
10 mm (0.39 in): Days with 10 mm or more rain	119	42	2018	26
25 mm (0.98 in): Days with 25 mm or more rain	119	15	2024	9
50 mm (1.97 in): Days with 50 mm or more rain	82	5	2005	3
100 mm (3.94 in): Days with 100 mm or more rain	10	1	1925	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	2005	1
10 cm (3.9 in): Days with 10 cm or more snowfall	85	11	2018	1
25 cm (9.8 in): Days with 25 cm or more snowfall	14	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 1899.

Download the Data

Data for Winnebago 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).

Winnebago Threshold Days by Year (USC00219046)

Key Facts for Winnebago Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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