Onaway 4N Threshold Days by Year (USC00206184)

17 fixed thresholds counted per year at Onaway 4N (USC00206184): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Onaway 4N Thresholds

Onaway 4N: nights with a minimum temperature at or below 0 C (32 F) in 88 years, most in 1935 with 195.
Onaway 4N: nights with a minimum temperature at or below -10 C (14 F) in 88 years, most in 1929 with 82.
Onaway 4N: nights with a minimum temperature at or below -20 C (-4 F) in 88 years, most in 2014 with 30.
Onaway 4N: days with 10 mm (0.39 in) or more of precipitation in 88 years, most in 1951 with 34.
17 fixed thresholds have at least one qualifying day at Onaway 4N.

Days at or above 30 C (86 F)

86 years with a qualifying day

Days per year at Onaway 4N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 57 in 1955.

Days at or above 30 C (86 F) per year at Onaway 4N
Year	Days	Decade average
1929	20	20
1930	26	26.5
1931	40	26.5
1932	21	26.5
1933	48	26.5
1934	39	26.5
1935	24	26.5
1936	13	26.5
1937	28	26.5
1938	15	26.5
1939	11	26.5
1940	3	23
1943	24	23
1944	37	23
1945	24	23
1946	11	23
1947	31	23
1948	26	23
1949	28	23
1950	15	20.7
1951	6	20.7
1952	21	20.7
1953	23	20.7
1954	16	20.7
1955	57	20.7
1956	9	20.7
1957	17	20.7
1958	11	20.7
1959	32	20.7
1960	14	20.4
1961	19	20.4
1962	20	20.4
1963	23	20.4
1964	24	20.4
1965	11	20.4
1966	28	20.4
1968	22	20.4
1969	23	20.4
1970	28	20.9
1971	16	20.9
1972	10	20.9
1973	24	20.9
1974	14	20.9
1975	26	20.9
1977	31	20.9
1978	19	20.9
1979	20	20.9
1980	28	23
1981	11	23
1982	14	23
1985	16	23
1986	18	23
1987	36	23
1988	36	23
1989	25	23
1990	19	21.2
1991	31	21.2
1992	11	21.2
1993	24	21.2
1994	11	21.2
1995	30	21.2
1996	13	21.2
1997	17	21.2
1998	24	21.2
1999	32	21.2
2000	11	26.1
2002	37	26.1
2003	26	26.1
2004	21	26.1
2005	42	26.1
2006	25	26.1
2007	46	26.1
2008	14	26.1
2009	13	26.1
2010	27	20.2
2011	18	20.2
2012	41	20.2
2013	26	20.2
2014	9	20.2
2015	15	20.2
2016	22	20.2
2017	9	20.2
2018	27	20.2
2019	8	20.2
2020	19	16.5
2021	14	16.5

For each year, a bar from the first to the last day at Onaway 4N meeting 30 C (86 F).

First to last qualifying date each year at Onaway 4N
Year	First date	Last date
1929	1929-05-29	1929-09-04
1930	1930-05-05	1930-09-01
1931	1931-05-28	1931-09-14
1932	1932-05-15	1932-09-19
1933	1933-05-24	1933-09-25
1934	1934-05-01	1934-09-25
1935	1935-05-20	1935-09-25
1936	1936-05-08	1936-08-22
1937	1937-05-30	1937-09-23
1938	1938-06-15	1938-08-18
1939	1939-05-07	1939-08-07
1940	1940-07-24	1940-07-29
1943	1943-06-14	1943-09-02
1944	1944-05-28	1944-08-20
1945	1945-06-14	1945-09-08
1946	1946-06-23	1946-08-07
1947	1947-06-10	1947-09-14
1948	1948-05-20	1948-09-12
1949	1949-05-03	1949-08-27
1950	1950-06-06	1950-07-28
1951	1951-05-20	1951-09-12
1952	1952-06-06	1952-09-14
1953	1953-05-09	1953-10-03
1954	1954-06-13	1954-09-02
1955	1955-06-04	1955-09-18
1956	1956-05-11	1956-06-30
1957	1957-06-10	1957-09-02
1958	1958-05-17	1958-08-11
1959	1959-05-05	1959-09-09
1960	1960-07-10	1960-09-08
1961	1961-06-11	1961-09-10
1962	1962-05-15	1962-08-31
1963	1963-06-01	1963-08-22
1964	1964-05-22	1964-08-30
1965	1965-05-25	1965-08-15
1966	1966-06-22	1966-09-02
1968	1968-06-04	1968-09-05
1969	1969-05-16	1969-09-06
1970	1970-04-29	1970-09-07
1971	1971-06-04	1971-10-03
1972	1972-05-20	1972-08-30
1973	1973-06-10	1973-09-04
1974	1974-06-05	1974-09-12
1975	1975-05-19	1975-08-16
1977	1977-05-16	1977-08-31
1978	1978-05-27	1978-08-21
1979	1979-05-08	1979-09-27
1980	1980-05-22	1980-08-26
1981	1981-06-15	1981-08-01
1982	1982-05-11	1982-09-13
1985	1985-04-22	1985-09-19
1986	1986-04-27	1986-07-25
1987	1987-04-20	1987-09-06
1988	1988-05-30	1988-08-17
1989	1989-06-08	1989-08-06
1990	1990-04-24	1990-09-01
1991	1991-05-15	1991-09-10
1992	1992-05-22	1992-08-26
1993	1993-05-09	1993-08-27
1994	1994-05-21	1994-08-26
1995	1995-06-06	1995-10-12
1996	1996-05-19	1996-09-04
1997	1997-06-10	1997-08-09
1998	1998-05-15	1998-09-12
1999	1999-05-29	1999-09-06
2000	2000-05-06	2000-09-01
2002	2002-06-10	2002-10-01
2003	2003-06-22	2003-09-18
2004	2004-05-12	2004-09-23
2005	2005-06-05	2005-10-05
2006	2006-05-29	2006-08-02
2007	2007-04-22	2007-10-08
2008	2008-06-06	2008-09-03
2009	2009-05-20	2009-08-16
2010	2010-04-02	2010-09-01
2011	2011-05-31	2011-09-12
2012	2012-03-21	2012-09-12
2013	2013-05-30	2013-09-10
2014	2014-06-01	2014-07-22
2015	2015-05-07	2015-09-15
2016	2016-05-24	2016-09-06
2017	2017-06-10	2017-09-26
2018	2018-05-25	2018-09-17
2019	2019-06-27	2019-07-20
2020	2020-05-25	2020-08-11
2021	2021-05-25	2021-08-29

Every Fixed Threshold

Fixed thresholds at Onaway 4N
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	86	57	1955	14
35 C (95 F): Days	39	19	1955	1
40 C (104 F): Days	1	2	1936	2
90 F (32.2 C): Days	81	35	1955	5
100 F (37.8 C): Days	7	6	1936	1
0 C (32 F): Ice days (max	86	90	1940	52
0 C (32 F): Frost days (min	88	195	1935	167
-10 C (14 F): Days with min	88	82	1929	48
-20 C (-4 F): Days with min	88	30	2014	5
-30 C (-22 F): Days with min	22	3	1979	2
20 C (68 F): Tropical nights (min	72	10	1988	1
25 C (77 F): Days with min	6	1	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	88	34	1951	23
25 mm (0.98 in): Days with 25 mm or more rain	88	8	1960	4
50 mm (1.97 in): Days with 50 mm or more rain	35	3	2011	1
10 cm (3.9 in): Days with 10 cm or more snowfall	83	14	1985	5
25 cm (9.8 in): Days with 25 cm or more snowfall	33	2	1966	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1929.

Download the Data

Data for Onaway 4N 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Onaway 4N Threshold Days by Year (USC00206184)

Key Facts for Onaway 4N Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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