Portage Wwtp Threshold Days by Year (USC00476718)

19 fixed thresholds counted per year at Portage Wwtp (USC00476718): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Portage Wwtp Thresholds

Portage Wwtp: days with 10 mm (0.39 in) or more of precipitation in 132 years, most in 2018 with 46.
Portage Wwtp: days with 25 mm (0.98 in) or more of precipitation in 132 years, most in 2018 with 16.
Portage Wwtp: days with a maximum temperature at or above 30 C (86 F) in 129 years, most in 1921 with 69.
Portage Wwtp: days with a maximum temperature at or below 0 C (32 F) in 129 years, most in 2014 with 91.
19 fixed thresholds have at least one qualifying day at Portage Wwtp.

Days at or above 30 C (86 F)

129 years with a qualifying day

Days per year at Portage Wwtp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 69 in 1921.

Days at or above 30 C (86 F) per year at Portage Wwtp
Year	Days	Decade average
1897	32	33
1898	32	33
1899	35	33
1900	31	17.8
1901	44	17.8
1902	10	17.8
1903	7	17.8
1904	5	17.8
1905	11	17.8
1906	12	17.8
1907	3	17.8
1908	29	17.8
1909	26	17.8
1910	54	39.5
1911	53	39.5
1912	30	39.5
1913	39	39.5
1914	48	39.5
1915	14	39.5
1916	48	39.5
1917	22	39.5
1918	36	39.5
1919	51	39.5
1920	37	37.4
1921	69	37.4
1922	45	37.4
1923	51	37.4
1924	13	37.4
1925	42	37.4
1926	22	37.4
1927	30	37.4
1928	27	37.4
1929	38	37.4
1930	54	52.4
1931	65	52.4
1932	41	52.4
1933	61	52.4
1934	58	52.4
1935	38	52.4
1936	64	52.4
1937	56	52.4
1938	33	52.4
1939	54	52.4
1940	30	34.5
1941	38	34.5
1942	25	34.5
1943	47	34.5
1944	44	34.5
1945	20	34.5
1946	28	34.5
1947	37	34.5
1948	41	34.5
1949	35	34.5
1950	14	25.9
1951	7	25.9
1952	49	25.9
1954	21	25.9
1955	47	25.9
1956	18	25.9
1957	24	25.9
1958	24	25.9
1959	29	25.9
1960	29	30.9
1961	40	30.9
1962	26	30.9
1963	49	30.9
1964	38	30.9
1965	19	30.9
1966	28	30.9
1967	18	30.9
1968	34	30.9
1969	28	30.9
1970	49	36.5
1971	42	36.5
1972	40	36.5
1973	31	36.5
1974	23	36.5
1975	46	36.5
1976	51	36.5
1977	37	36.5
1978	30	36.5
1979	16	36.5
1980	35	32.8
1981	24	32.8
1982	18	32.8
1983	55	32.8
1984	30	32.8
1985	30	32.8
1986	19	32.8
1987	38	32.8
1988	54	32.8
1989	25	32.8
1990	16	21.7
1991	34	21.7
1992	12	21.7
1993	12	21.7
1994	14	21.7
1995	35	21.7
1996	15	21.7
1997	17	21.7
1998	30	21.7
1999	32	21.7
2000	7	24.9
2001	33	24.9
2002	40	24.9
2003	34	24.9
2004	7	24.9
2005	41	24.9
2006	25	24.9
2007	39	24.9
2008	13	24.9
2009	10	24.9
2010	24	26
2011	34	26
2012	58	26
2013	27	26
2014	12	26
2015	16	26
2016	24	26
2017	19	26
2018	30	26
2019	16	26
2020	26	27.1
2021	31	27.1
2022	23	27.1
2023	29	27.1
2024	23	27.1
2025	30	27.1
2026	28	27.1

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

First to last qualifying date each year at Portage Wwtp
Year	First date	Last date
1897	1897-05-06	1897-09-14
1898	1898-06-03	1898-09-03
1899	1899-06-03	1899-09-05
1900	1900-05-12	1900-09-10
1901	1901-04-29	1901-09-06
1902	1902-05-19	1902-07-30
1903	1903-06-07	1903-07-28
1904	1904-05-21	1904-08-12
1905	1905-07-16	1905-10-09
1906	1906-05-17	1906-08-25
1907	1907-06-17	1907-08-10
1908	1908-05-20	1908-09-26
1909	1909-05-05	1909-08-26
1910	1910-06-13	1910-08-25
1911	1911-05-10	1911-09-16
1912	1912-06-22	1912-09-10
1913	1913-06-13	1913-09-12
1914	1914-05-25	1914-09-20
1915	1915-04-24	1915-09-19
1916	1916-05-26	1916-09-06
1917	1917-05-17	1917-08-26
1918	1918-05-03	1918-09-07
1919	1919-05-27	1919-09-09
1920	1920-06-08	1920-09-25
1921	1921-05-20	1921-09-01
1922	1922-05-09	1922-10-05
1923	1923-06-01	1923-09-05
1924	1924-07-15	1924-08-31
1925	1925-05-20	1925-09-19
1926	1926-06-12	1926-09-17
1927	1927-06-08	1927-09-17
1928	1928-05-09	1928-08-27
1929	1929-05-28	1929-09-05
1930	1930-04-10	1930-09-25
1931	1931-06-11	1931-09-21
1932	1932-05-14	1932-09-19
1933	1933-05-19	1933-09-09
1934	1934-05-06	1934-08-19
1935	1935-06-14	1935-09-24
1936	1936-05-06	1936-09-22
1937	1937-05-30	1937-09-23
1938	1938-06-20	1938-09-05
1939	1939-05-19	1939-09-28
1940	1940-05-13	1940-09-20
1941	1941-05-20	1941-09-21
1942	1942-04-30	1942-09-12
1943	1943-06-03	1943-09-05
1944	1944-05-29	1944-09-03
1945	1945-06-23	1945-09-07
1946	1946-06-16	1946-08-17
1947	1947-06-28	1947-09-19
1948	1948-05-20	1948-09-20
1949	1949-05-03	1949-08-26
1950	1950-05-24	1950-08-17
1951	1951-05-18	1951-08-01
1952	1952-04-27	1952-09-29
1954	1954-06-11	1954-09-06
1955	1955-06-30	1955-09-19
1956	1956-05-22	1956-08-27
1957	1957-06-16	1957-09-01
1958	1958-06-30	1958-09-03
1959	1959-05-02	1959-09-09
1960	1960-06-27	1960-09-08
1961	1961-06-05	1961-09-10
1962	1962-04-26	1962-08-30
1963	1963-05-08	1963-10-06
1964	1964-05-22	1964-09-09
1965	1965-05-02	1965-09-10
1966	1966-06-21	1966-09-01
1967	1967-05-18	1967-07-31
1968	1968-06-05	1968-09-04
1969	1969-05-28	1969-08-31
1970	1970-04-29	1970-09-07
1971	1971-06-04	1971-10-01
1972	1972-05-18	1972-08-31
1973	1973-06-08	1973-09-02
1974	1974-05-21	1974-08-27
1975	1975-05-18	1975-10-14
1976	1976-06-07	1976-10-02
1977	1977-05-13	1977-08-28
1978	1978-05-26	1978-09-19
1979	1979-05-10	1979-08-31
1980	1980-04-22	1980-08-26
1981	1981-06-05	1981-09-12
1982	1982-05-10	1982-09-11
1983	1983-06-11	1983-09-30
1984	1984-06-06	1984-09-25
1985	1985-04-18	1985-09-08
1986	1986-04-27	1986-08-19
1987	1987-04-21	1987-08-16
1988	1988-05-29	1988-09-18
1989	1989-05-25	1989-08-23
1990	1990-04-25	1990-09-07
1991	1991-04-07	1991-09-10
1992	1992-05-02	1992-08-26
1993	1993-06-24	1993-08-27
1994	1994-06-15	1994-09-16
1995	1995-06-16	1995-09-06
1996	1996-05-18	1996-09-06
1997	1997-06-21	1997-08-03
1998	1998-05-15	1998-09-14
1999	1999-05-30	1999-09-05
2000	2000-06-09	2000-09-02
2001	2001-05-16	2001-08-10
2002	2002-04-16	2002-09-10
2003	2003-04-15	2003-09-12
2004	2004-06-08	2004-08-04
2005	2005-06-08	2005-09-22
2006	2006-05-29	2006-08-05
2007	2007-04-30	2007-10-08
2008	2008-07-12	2008-09-03
2009	2009-06-23	2009-09-14
2010	2010-05-24	2010-08-30
2011	2011-05-31	2011-09-02
2012	2012-05-19	2012-09-05
2013	2013-05-01	2013-09-20
2014	2014-06-01	2014-08-30
2015	2015-06-10	2015-09-07
2016	2016-05-07	2016-09-07
2017	2017-06-04	2017-09-26
2018	2018-05-25	2018-09-18
2019	2019-06-27	2019-07-29
2020	2020-05-27	2020-08-28
2021	2021-05-02	2021-09-20
2022	2022-05-11	2022-09-02
2023	2023-05-31	2023-10-02
2024	2024-05-19	2024-09-20
2025	2025-05-16	2025-10-05
2026	2026-05-27	2026-10-13

Every Fixed Threshold

Fixed thresholds at Portage Wwtp
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	129	69	1921	28
35 C (95 F): Days	73	24	1931	2
40 C (104 F): Days	4	6	1936	6
90 F (32.2 C): Days	127	51	1921	13
100 F (37.8 C): Days	22	11	1901	1
110 F (43.3 C): Days	1	1	1936	1
0 C (32 F): Ice days (max	129	91	2014	38
0 C (32 F): Frost days (min	127	190	1976	91
-10 C (14 F): Days with min	127	93	1978	34
-20 C (-4 F): Days with min	126	37	1917	6
-30 C (-22 F): Days with min	46	8	1979	4
20 C (68 F): Tropical nights (min	127	36	1921	15
25 C (77 F): Days with min	26	4	1931	2
10 mm (0.39 in): Days with 10 mm or more rain	132	46	2018	24
25 mm (0.98 in): Days with 25 mm or more rain	132	16	2018	12
50 mm (1.97 in): Days with 50 mm or more rain	82	5	2010	2
100 mm (3.94 in): Days with 100 mm or more rain	10	2	2008	1
10 cm (3.9 in): Days with 10 cm or more snowfall	105	9	2008	1
25 cm (9.8 in): Days with 25 cm or more snowfall	15	1	1903	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.

Download the Data

Data for Portage 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).

Portage Wwtp Threshold Days by Year (USC00476718)

Key Facts for Portage Wwtp Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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