Owosso Wwtp Threshold Days by Year (USC00206300)

18 fixed thresholds counted per year at Owosso Wwtp (USC00206300): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Owosso Wwtp Thresholds

Owosso Wwtp: days with a maximum temperature at or above 30 C (86 F) in 113 years, most in 1933 with 70.
Owosso Wwtp: days with a maximum temperature at or below 0 C (32 F) in 113 years, most in 1978 with 82.
Owosso Wwtp: nights with a minimum temperature at or below 0 C (32 F) in 113 years, most in 1926 with 173.
Owosso Wwtp: nights with a minimum temperature at or below -10 C (14 F) in 113 years, most in 1912 with 69.
18 fixed thresholds have at least one qualifying day at Owosso Wwtp.

Days at or above 30 C (86 F)

113 years with a qualifying day

Days per year at Owosso Wwtp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 70 in 1933.

Days at or above 30 C (86 F) per year at Owosso Wwtp
Year	Days	Decade average
1896	30	40.7
1897	36	40.7
1898	56	40.7
1900	64	42.8
1901	52	42.8
1907	17	42.8
1908	45	42.8
1909	36	42.8
1910	42	37.6
1911	44	37.6
1912	36	37.6
1913	54	37.6
1915	12	37.6
1917	20	37.6
1918	41	37.6
1919	52	37.6
1920	24	36.6
1921	63	36.6
1922	36	36.6
1923	48	36.6
1924	11	36.6
1926	29	36.6
1927	32	36.6
1929	50	36.6
1930	65	54.8
1931	45	54.8
1933	70	54.8
1934	68	54.8
1935	34	54.8
1936	54	54.8
1937	55	54.8
1938	45	54.8
1939	57	54.8
1940	37	36.9
1941	50	36.9
1942	18	36.9
1943	29	36.9
1944	48	36.9
1945	29	36.9
1946	38	36.9
1947	41	36.9
1948	34	36.9
1949	45	36.9
1950	14	27.7
1951	16	27.7
1952	42	27.7
1953	42	27.7
1954	30	27.7
1955	42	27.7
1956	18	27.7
1957	20	27.7
1958	10	27.7
1959	43	27.7
1960	17	21
1961	25	21
1962	23	21
1963	32	21
1964	21	21
1965	13	21
1966	26	21
1967	15	21
1968	21	21
1969	17	21
1970	26	28.3
1971	37	28.3
1972	16	28.3
1973	27	28.3
1974	21	28.3
1975	31	28.3
1976	37	28.3
1977	37	28.3
1978	34	28.3
1979	17	28.3
1980	14	29.9
1981	17	29.9
1982	15	29.9
1983	54	29.9
1984	31	29.9
1986	15	29.9
1987	47	29.9
1988	46	29.9
1991	28	25
1996	12	25
1997	13	25
1998	38	25
1999	34	25
2000	7	20.8
2001	31	20.8
2002	47	20.8
2003	12	20.8
2004	8	20.8
2005	37	20.8
2006	15	20.8
2007	33	20.8
2008	12	20.8
2009	6	20.8
2010	36	28.2
2011	34	28.2
2012	45	28.2
2013	22	28.2
2014	10	28.2
2015	18	28.2
2016	35	28.2
2017	26	28.2
2018	37	28.2
2019	19	28.2
2020	37	28.4
2021	36	28.4
2022	30	28.4
2023	19	28.4
2024	23	28.4
2025	31	28.4
2026	23	28.4

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

First to last qualifying date each year at Owosso Wwtp
Year	First date	Last date
1896	1896-04-16	1896-08-11
1897	1897-06-13	1897-10-15
1898	1898-06-04	1898-10-03
1900	1900-05-13	1900-10-06
1901	1901-05-02	1901-09-07
1907	1907-06-16	1907-09-01
1908	1908-05-25	1908-09-27
1909	1909-06-21	1909-09-15
1910	1910-06-15	1910-08-22
1911	1911-05-17	1911-09-02
1912	1912-05-23	1912-09-11
1913	1913-05-03	1913-09-08
1915	1915-04-24	1915-09-16
1917	1917-06-12	1917-08-20
1918	1918-05-31	1918-08-26
1919	1919-05-28	1919-09-09
1920	1920-06-09	1920-09-27
1921	1921-05-20	1921-09-29
1922	1922-05-11	1922-10-05
1923	1923-06-01	1923-09-02
1924	1924-06-19	1924-09-22
1926	1926-05-07	1926-08-30
1927	1927-06-28	1927-09-18
1929	1929-05-28	1929-09-05
1930	1930-05-04	1930-09-20
1931	1931-05-18	1931-09-22
1933	1933-06-06	1933-09-26
1934	1934-05-19	1934-09-27
1935	1935-07-04	1935-09-25
1936	1936-05-07	1936-09-22
1937	1937-05-30	1937-09-24
1938	1938-05-03	1938-10-17
1939	1939-05-19	1939-10-09
1940	1940-05-14	1940-09-22
1941	1941-05-05	1941-09-22
1942	1942-04-30	1942-08-31
1943	1943-06-12	1943-09-03
1944	1944-05-26	1944-09-19
1945	1945-06-14	1945-09-08
1946	1946-06-16	1946-10-06
1947	1947-06-10	1947-10-17
1948	1948-06-02	1948-09-19
1949	1949-05-04	1949-09-04
1950	1950-06-08	1950-08-17
1951	1951-06-17	1951-10-04
1952	1952-05-05	1952-09-13
1953	1953-06-05	1953-10-21
1954	1954-06-09	1954-09-06
1955	1955-05-03	1955-09-19
1956	1956-06-10	1956-09-05
1957	1957-06-16	1957-09-19
1958	1958-06-30	1958-08-30
1959	1959-05-06	1959-09-09
1960	1960-06-11	1960-09-08
1961	1961-06-11	1961-09-11
1962	1962-05-14	1962-09-12
1963	1963-06-02	1963-08-21
1964	1964-06-09	1964-09-10
1965	1965-06-27	1965-08-16
1966	1966-06-22	1966-09-02
1967	1967-06-03	1967-08-17
1968	1968-06-06	1968-08-24
1969	1969-06-12	1969-08-31
1970	1970-06-10	1970-09-21
1971	1971-05-18	1971-10-02
1972	1972-05-21	1972-08-22
1973	1973-06-10	1973-09-04
1974	1974-06-20	1974-08-27
1975	1975-05-19	1975-08-12
1976	1976-06-07	1976-09-14
1977	1977-05-13	1977-08-31
1978	1978-05-26	1978-09-20
1979	1979-05-08	1979-08-07
1980	1980-06-25	1980-08-29
1981	1981-06-15	1981-08-13
1982	1982-05-14	1982-09-13
1983	1983-06-11	1983-09-19
1984	1984-06-06	1984-09-22
1986	1986-04-28	1986-08-19
1987	1987-05-22	1987-08-17
1988	1988-05-31	1988-08-11
1991	1991-05-13	1991-09-15
1996	1996-05-19	1996-08-23
1997	1997-06-23	1997-08-03
1998	1998-05-16	1998-09-27
1999	1999-05-18	1999-09-28
2000	2000-06-10	2000-09-02
2001	2001-06-14	2001-09-09
2002	2002-04-17	2002-10-02
2003	2003-06-24	2003-08-27
2004	2004-04-19	2004-09-24
2005	2005-06-06	2005-09-22
2006	2006-05-29	2006-08-03
2007	2007-05-24	2007-10-09
2008	2008-06-07	2008-09-03
2009	2009-06-24	2009-08-17
2010	2010-05-25	2010-09-24
2011	2011-05-23	2011-09-04
2012	2012-03-22	2012-09-04
2013	2013-05-20	2013-09-12
2014	2014-06-17	2014-09-06
2015	2015-05-08	2015-09-09
2016	2016-05-26	2016-09-08
2017	2017-05-17	2017-09-27
2018	2018-05-26	2018-09-19
2019	2019-06-28	2019-09-22
2020	2020-05-25	2020-08-28
2021	2021-05-21	2021-09-15
2022	2022-05-13	2022-09-04
2023	2023-05-30	2023-09-06
2024	2024-05-20	2024-09-22
2025	2025-06-04	2025-10-05
2026	2026-05-18	2026-10-13

Every Fixed Threshold

Fixed thresholds at Owosso Wwtp
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	113	70	1933	23
35 C (95 F): Days	60	21	1933	4
40 C (104 F): Days	2	3	1936	3
90 F (32.2 C): Days	109	53	1933	9
100 F (37.8 C): Days	17	7	1934	2
0 C (32 F): Ice days (max	113	82	1978	39
0 C (32 F): Frost days (min	113	173	1926	87
-10 C (14 F): Days with min	113	69	1912	34
-20 C (-4 F): Days with min	91	22	1912	6
-30 C (-22 F): Days with min	3	1	1907	1
20 C (68 F): Tropical nights (min	110	35	1921	9
25 C (77 F): Days with min	17	5	1933	2
10 mm (0.39 in): Days with 10 mm or more rain	110	36	2006	26
25 mm (0.98 in): Days with 25 mm or more rain	109	15	2011	6
50 mm (1.97 in): Days with 50 mm or more rain	55	5	2011	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1981	1
10 cm (3.9 in): Days with 10 cm or more snowfall	65	5	1901	2
25 cm (9.8 in): Days with 25 cm or more snowfall	8	1	1931	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

Data for Owosso Wwtp 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).

Owosso Wwtp Threshold Days by Year (USC00206300)

Key Facts for Owosso Wwtp Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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