Zumbrota Threshold Days by Year (USC00219249)

19 fixed thresholds counted per year at Zumbrota (USC00219249): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Zumbrota Thresholds

Zumbrota: nights with a minimum temperature at or below 0 C (32 F) in 116 years, most in 1917 with 190.
Zumbrota: nights with a minimum temperature at or below -10 C (14 F) in 116 years, most in 1950 with 100.
Zumbrota: nights with a minimum temperature at or below -20 C (-4 F) in 116 years, most in 1978 with 61.
Zumbrota: nights with a minimum temperature at or above 20 C (68 F) in 114 years, most in 1931 with 25.
19 fixed thresholds have at least one qualifying day at Zumbrota.

Days at or above 30 C (86 F)

111 years with a qualifying day

Days per year at Zumbrota with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 74 in 1936.

Days at or above 30 C (86 F) per year at Zumbrota
Year	Days	Decade average
1904	6	15
1905	13	15
1907	8	15
1908	23	15
1909	25	15
1912	18	20.3
1914	23	20.3
1915	4	20.3
1916	39	20.3
1917	14	20.3
1918	21	20.3
1919	23	20.3
1921	56	34
1922	35	34
1923	46	34
1924	12	34
1925	33	34
1928	21	34
1929	35	34
1930	46	52.5
1931	64	52.5
1932	36	52.5
1933	61	52.5
1934	47	52.5
1935	36	52.5
1936	74	52.5
1939	56	52.5
1940	35	35.3
1941	43	35.3
1942	18	35.3
1943	38	35.3
1944	27	35.3
1945	19	35.3
1946	26	35.3
1947	45	35.3
1948	48	35.3
1949	54	35.3
1950	23	33.4
1951	18	33.4
1952	43	33.4
1953	31	33.4
1954	31	33.4
1955	48	33.4
1956	33	33.4
1957	30	33.4
1958	28	33.4
1959	49	33.4
1960	37	36.4
1961	37	36.4
1962	24	36.4
1963	48	36.4
1964	51	36.4
1965	21	36.4
1966	52	36.4
1967	23	36.4
1968	34	36.4
1969	37	36.4
1970	50	37.1
1971	35	37.1
1972	30	37.1
1973	36	37.1
1974	30	37.1
1975	46	37.1
1976	47	37.1
1977	32	37.1
1978	41	37.1
1979	24	37.1
1980	52	41
1981	23	41
1982	33	41
1983	62	41
1984	33	41
1985	41	41
1986	28	41
1988	69	41
1989	28	41
1990	24	21.3
1991	34	21.3
1992	11	21.3
1993	8	21.3
1994	16	21.3
1995	33	21.3
1996	16	21.3
1997	18	21.3
1998	26	21.3
1999	27	21.3
2000	21	24.8
2001	38	24.8
2002	42	24.8
2003	27	24.8
2004	8	24.8
2005	39	24.8
2006	26	24.8
2007	33	24.8
2008	5	24.8
2009	9	24.8
2010	26	20.4
2011	21	20.4
2012	39	20.4
2013	24	20.4
2014	6	20.4
2015	10	20.4
2016	13	20.4
2017	19	20.4
2018	26	20.4
2021	26	26
2022	22	26
2023	40	26
2024	15	26
2025	25	26
2026	28	26

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

First to last qualifying date each year at Zumbrota
Year	First date	Last date
1904	1904-07-15	1904-08-24
1905	1905-06-04	1905-08-29
1907	1907-06-16	1907-08-31
1908	1908-05-16	1908-09-22
1909	1909-05-05	1909-08-27
1912	1912-06-25	1912-09-09
1914	1914-05-25	1914-08-17
1915	1915-07-12	1915-09-06
1916	1916-07-01	1916-09-06
1917	1917-05-18	1917-08-19
1918	1918-05-03	1918-08-26
1919	1919-05-28	1919-09-20
1921	1921-05-22	1921-09-03
1922	1922-06-06	1922-10-04
1923	1923-06-01	1923-09-05
1924	1924-06-14	1924-08-30
1925	1925-05-20	1925-09-20
1928	1928-05-09	1928-10-10
1929	1929-06-10	1929-09-04
1930	1930-06-02	1930-09-24
1931	1931-05-15	1931-09-20
1932	1932-05-14	1932-08-30
1933	1933-05-24	1933-09-09
1934	1934-04-30	1934-08-19
1935	1935-07-03	1935-09-24
1936	1936-05-16	1936-09-22
1939	1939-04-24	1939-09-22
1940	1940-06-01	1940-09-20
1941	1941-05-19	1941-09-21
1942	1942-06-05	1942-09-11
1943	1943-05-05	1943-09-27
1944	1944-05-29	1944-08-14
1945	1945-06-23	1945-09-07
1946	1946-06-07	1946-08-17
1947	1947-06-26	1947-10-21
1948	1948-05-20	1948-09-19
1949	1949-05-03	1949-08-27
1950	1950-05-23	1950-10-18
1951	1951-06-17	1951-08-31
1952	1952-04-28	1952-09-13
1953	1953-05-29	1953-10-16
1954	1954-06-11	1954-09-01
1955	1955-05-02	1955-09-18
1956	1956-06-07	1956-09-25
1957	1957-06-17	1957-09-02
1958	1958-05-10	1958-08-20
1959	1959-05-01	1959-09-09
1960	1960-07-08	1960-09-07
1961	1961-05-12	1961-09-10
1962	1962-04-25	1962-08-27
1963	1963-05-07	1963-10-06
1964	1964-05-18	1964-09-03
1965	1965-05-02	1965-08-18
1966	1966-05-26	1966-09-02
1967	1967-05-18	1967-08-25
1968	1968-05-01	1968-08-24
1969	1969-05-27	1969-09-02
1970	1970-04-29	1970-09-06
1971	1971-06-04	1971-09-30
1972	1972-05-17	1972-08-30
1973	1973-06-09	1973-09-02
1974	1974-06-04	1974-09-26
1975	1975-05-19	1975-08-24
1976	1976-06-06	1976-09-13
1977	1977-04-27	1977-08-28
1978	1978-05-25	1978-09-11
1979	1979-05-17	1979-09-01
1980	1980-04-21	1980-09-09
1981	1981-06-07	1981-09-11
1982	1982-06-28	1982-09-11
1983	1983-06-10	1983-09-10
1984	1984-06-02	1984-09-20
1985	1985-04-17	1985-09-20
1986	1986-05-30	1986-09-27
1988	1988-05-28	1988-09-18
1989	1989-06-06	1989-08-11
1990	1990-05-07	1990-09-13
1991	1991-04-06	1991-08-31
1992	1992-05-01	1992-10-03
1993	1993-08-10	1993-08-27
1994	1994-05-22	1994-09-15
1995	1995-06-16	1995-09-07
1996	1996-05-18	1996-09-05
1997	1997-06-22	1997-10-04
1998	1998-05-14	1998-09-20
1999	1999-06-05	1999-09-03
2000	2000-05-04	2000-09-18
2001	2001-05-14	2001-08-09
2002	2002-04-15	2002-09-10
2003	2003-04-14	2003-09-09
2004	2004-04-29	2004-07-22
2005	2005-06-07	2005-09-22
2006	2006-05-28	2006-08-01
2007	2007-05-11	2007-10-07
2008	2008-06-26	2008-07-31
2009	2009-05-20	2009-08-15
2010	2010-05-25	2010-10-10
2011	2011-05-11	2011-09-13
2012	2012-05-19	2012-09-12
2013	2013-05-15	2013-09-12
2014	2014-05-31	2014-09-02
2015	2015-06-10	2015-09-17
2016	2016-05-07	2016-08-11
2017	2017-06-03	2017-09-25
2018	2018-05-25	2018-09-18
2021	2021-06-04	2021-09-20
2022	2022-05-10	2022-09-21
2023	2023-04-13	2023-10-03
2024	2024-06-17	2024-09-19
2025	2025-05-12	2025-10-05
2026	2026-05-16	2026-10-13

Every Fixed Threshold

Fixed thresholds at Zumbrota
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	111	74	1936	28
35 C (95 F): Days	68	31	1936	1
40 C (104 F): Days	2	8	1936	8
90 F (32.2 C): Days	107	52	1936	11
100 F (37.8 C): Days	15	15	1936	4
0 C (32 F): Ice days (max	111	100	1978	40
0 C (32 F): Frost days (min	116	190	1917	101
-10 C (14 F): Days with min	116	100	1950	37
-20 C (-4 F): Days with min	116	61	1978	13
-30 C (-22 F): Days with min	87	14	1899	2
-40 C (-40 F): Days with min	3	1	1899	1
20 C (68 F): Tropical nights (min	114	25	1931	9
25 C (77 F): Days with min	19	8	1931	1
10 mm (0.39 in): Days with 10 mm or more rain	110	39	1986	10
25 mm (0.98 in): Days with 25 mm or more rain	110	13	1918	1
50 mm (1.97 in): Days with 50 mm or more rain	80	5	2002	2
100 mm (3.94 in): Days with 100 mm or more rain	14	2	1998	1
10 cm (3.9 in): Days with 10 cm or more snowfall	62	8	1983	1
25 cm (9.8 in): Days with 25 cm or more snowfall	14	2	1933	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.

Download the Data

Data for Zumbrota 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).

Zumbrota Threshold Days by Year (USC00219249)

Key Facts for Zumbrota Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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