Muskegon Co AP Threshold Days by Year (USW00014840)

17 fixed thresholds counted per year at Muskegon Co AP (USW00014840): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Muskegon Co AP Thresholds

Muskegon Co AP: days with a maximum temperature at or below 0 C (32 F) in 130 years, most in 1978 with 86.
Muskegon Co AP: nights with a minimum temperature at or below 0 C (32 F) in 129 years, most in 1907 with 169.
Muskegon Co AP: nights with a minimum temperature at or below -10 C (14 F) in 129 years, most in 1912 with 61.
Muskegon Co AP: nights with a minimum temperature at or above 20 C (68 F) in 129 years, most in 2010 with 38.
17 fixed thresholds have at least one qualifying day at Muskegon Co AP.

Days at or above 30 C (86 F)

127 years with a qualifying day

Days per year at Muskegon Co AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 40 in 2012.

Days at or above 30 C (86 F) per year at Muskegon Co AP
Year	Days	Decade average
1897	21	15
1898	10	15
1899	14	15
1900	18	11.1
1901	28	11.1
1902	3	11.1
1904	3	11.1
1905	14	11.1
1906	15	11.1
1907	4	11.1
1908	12	11.1
1909	3	11.1
1910	9	12.8
1911	22	12.8
1912	8	12.8
1913	23	12.8
1914	10	12.8
1916	21	12.8
1917	3	12.8
1918	6	12.8
1919	13	12.8
1920	4	6.7
1921	15	6.7
1922	6	6.7
1923	10	6.7
1925	2	6.7
1926	8	6.7
1927	5	6.7
1928	5	6.7
1929	5	6.7
1930	4	6.5
1931	14	6.5
1932	7	6.5
1933	10	6.5
1934	12	6.5
1935	7	6.5
1936	6	6.5
1937	3	6.5
1938	1	6.5
1939	1	6.5
1940	19	18.1
1941	23	18.1
1942	14	18.1
1943	15	18.1
1944	24	18.1
1945	8	18.1
1946	15	18.1
1947	22	18.1
1948	15	18.1
1949	26	18.1
1950	6	16.5
1951	3	16.5
1952	24	16.5
1953	24	16.5
1954	15	16.5
1955	36	16.5
1956	8	16.5
1957	14	16.5
1958	4	16.5
1959	31	16.5
1960	11	13.6
1961	5	13.6
1962	15	13.6
1963	16	13.6
1964	28	13.6
1965	8	13.6
1966	15	13.6
1967	7	13.6
1968	16	13.6
1969	15	13.6
1970	19	10
1971	8	10
1972	8	10
1973	12	10
1974	10	10
1975	16	10
1976	11	10
1977	10	10
1978	5	10
1979	1	10
1980	7	14.2
1981	6	14.2
1982	8	14.2
1983	27	14.2
1984	8	14.2
1985	2	14.2
1986	13	14.2
1987	23	14.2
1988	36	14.2
1989	12	14.2
1990	11	12.5
1991	22	12.5
1992	5	12.5
1993	15	12.5
1994	13	12.5
1995	20	12.5
1996	4	12.5
1997	5	12.5
1998	11	12.5
1999	19	12.5
2000	3	12.3
2001	14	12.3
2002	19	12.3
2003	15	12.3
2004	2	12.3
2005	29	12.3
2006	12	12.3
2007	19	12.3
2008	6	12.3
2009	4	12.3
2010	18	19.4
2011	26	19.4
2012	40	19.4
2013	14	19.4
2014	4	19.4
2015	10	19.4
2016	21	19.4
2017	17	19.4
2018	32	19.4
2019	12	19.4
2020	31	23.4
2021	23	23.4
2022	25	23.4
2023	25	23.4
2024	21	23.4
2025	24	23.4
2026	15	23.4

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

First to last qualifying date each year at Muskegon Co AP
Year	First date	Last date
1897	1897-06-14	1897-09-15
1898	1898-06-04	1898-09-03
1899	1899-07-22	1899-10-15
1900	1900-06-25	1900-09-11
1901	1901-06-12	1901-09-06
1902	1902-07-08	1902-07-31
1904	1904-07-16	1904-07-18
1905	1905-06-17	1905-09-30
1906	1906-07-11	1906-09-19
1907	1907-06-22	1907-08-15
1908	1908-06-06	1908-09-10
1909	1909-06-28	1909-08-09
1910	1910-06-22	1910-08-12
1911	1911-05-19	1911-08-10
1912	1912-07-05	1912-09-10
1913	1913-06-14	1913-09-06
1914	1914-07-09	1914-08-18
1916	1916-07-12	1916-08-22
1917	1917-07-24	1917-07-26
1918	1918-08-05	1918-08-20
1919	1919-06-03	1919-07-20
1920	1920-08-18	1920-09-26
1921	1921-06-16	1921-07-26
1922	1922-07-21	1922-09-09
1923	1923-05-29	1923-07-31
1925	1925-07-08	1925-07-13
1926	1926-05-29	1926-08-13
1927	1927-07-01	1927-09-16
1928	1928-07-07	1928-08-22
1929	1929-07-30	1929-08-27
1930	1930-05-10	1930-07-28
1931	1931-06-13	1931-08-09
1932	1932-07-12	1932-09-19
1933	1933-06-07	1933-09-08
1934	1934-06-03	1934-08-08
1935	1935-07-01	1935-08-15
1936	1936-07-06	1936-07-26
1937	1937-08-17	1937-09-02
1938	1938-08-07	1938-08-07
1939	1939-07-21	1939-07-21
1940	1940-07-09	1940-08-17
1941	1941-06-20	1941-09-24
1942	1942-05-29	1942-08-31
1943	1943-06-14	1943-08-25
1944	1944-06-04	1944-08-15
1945	1945-07-23	1945-09-07
1946	1946-06-27	1946-09-22
1947	1947-06-28	1947-09-09
1948	1948-07-09	1948-09-05
1949	1949-06-01	1949-08-26
1950	1950-05-24	1950-07-12
1951	1951-07-27	1951-09-12
1952	1952-06-15	1952-09-13
1953	1953-06-19	1953-09-29
1954	1954-06-11	1954-09-06
1955	1955-07-01	1955-09-17
1956	1956-06-10	1956-08-04
1957	1957-06-16	1957-09-01
1958	1958-07-26	1958-08-30
1959	1959-05-05	1959-09-09
1960	1960-07-24	1960-09-08
1961	1961-06-30	1961-09-10
1962	1962-05-17	1962-08-30
1963	1963-06-02	1963-07-27
1964	1964-05-22	1964-09-09
1965	1965-06-06	1965-08-15
1966	1966-06-22	1966-07-26
1967	1967-06-03	1967-09-16
1968	1968-06-07	1968-08-23
1969	1969-05-31	1969-09-04
1970	1970-04-29	1970-09-07
1971	1971-06-17	1971-07-07
1972	1972-05-19	1972-07-22
1973	1973-07-02	1973-09-03
1974	1974-07-03	1974-08-21
1975	1975-05-19	1975-08-28
1976	1976-06-12	1976-08-24
1977	1977-05-20	1977-08-28
1978	1978-05-28	1978-08-15
1979	1979-07-13	1979-07-13
1980	1980-06-23	1980-08-28
1981	1981-07-06	1981-07-13
1982	1982-05-14	1982-08-07
1983	1983-06-13	1983-09-10
1984	1984-06-06	1984-08-16
1985	1985-06-26	1985-07-13
1986	1986-06-21	1986-07-29
1987	1987-05-29	1987-08-04
1988	1988-05-22	1988-08-17
1989	1989-06-23	1989-08-03
1990	1990-07-03	1990-09-06
1991	1991-05-28	1991-09-09
1992	1992-06-14	1992-08-09
1993	1993-05-09	1993-08-30
1994	1994-06-05	1994-08-25
1995	1995-06-19	1995-08-14
1996	1996-08-05	1996-09-05
1997	1997-06-24	1997-07-18
1998	1998-05-15	1998-07-21
1999	1999-06-06	1999-09-05
2000	2000-07-27	2000-09-01
2001	2001-06-13	2001-08-09
2002	2002-06-10	2002-09-09
2003	2003-06-24	2003-09-11
2004	2004-06-08	2004-07-21
2005	2005-06-05	2005-09-13
2006	2006-05-28	2006-08-04
2007	2007-05-23	2007-09-24
2008	2008-06-12	2008-09-02
2009	2009-06-22	2009-08-16
2010	2010-05-23	2010-08-31
2011	2011-05-30	2011-09-02
2012	2012-05-20	2012-09-04
2013	2013-05-19	2013-09-10
2014	2014-06-01	2014-08-10
2015	2015-07-06	2015-09-06
2016	2016-05-31	2016-09-06
2017	2017-06-11	2017-09-26
2018	2018-05-27	2018-09-16
2019	2019-06-07	2019-08-13
2020	2020-05-26	2020-08-27
2021	2021-06-05	2021-09-19
2022	2022-05-10	2022-09-01
2023	2023-05-29	2023-09-22
2024	2024-05-21	2024-09-17
2025	2025-05-12	2025-09-19
2026	2026-06-08	2026-08-14

Every Fixed Threshold

Fixed thresholds at Muskegon Co AP
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	127	40	2012	15
35 C (95 F): Days	20	4	1988	1
90 F (32.2 C): Days	90	20	1955	2
0 C (32 F): Ice days (max	130	86	1978	33
0 C (32 F): Frost days (min	129	169	1907	88
-10 C (14 F): Days with min	129	61	1912	24
-20 C (-4 F): Days with min	68	16	1912	2
-30 C (-22 F): Days with min	3	3	1899	1
20 C (68 F): Tropical nights (min	129	38	2010	20
25 C (77 F): Days with min	18	4	1988	1
10 mm (0.39 in): Days with 10 mm or more rain	126	37	1905	30
25 mm (0.98 in): Days with 25 mm or more rain	126	15	1921	11
50 mm (1.97 in): Days with 50 mm or more rain	67	5	1921	1
100 mm (3.94 in): Days with 100 mm or more rain	6	2	1986	1
10 cm (3.9 in): Days with 10 cm or more snowfall	102	16	1962	4
25 cm (9.8 in): Days with 25 cm or more snowfall	22	4	1982	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1978	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 Muskegon Co AP 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).

Muskegon Co AP Threshold Days by Year (USW00014840)

Key Facts for Muskegon Co AP Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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