Grayling Threshold Days by Year (USC00203391)

19 fixed thresholds counted per year at Grayling (USC00203391): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grayling Thresholds

Grayling: days with a maximum temperature at or above 30 C (86 F) in 122 years, most in 1955 with 60.
Grayling: days with a maximum temperature at or below 0 C (32 F) in 122 years, most in 1943 with 118.
Grayling: nights with a minimum temperature at or below 0 C (32 F) in 122 years, most in 1943 with 223.
Grayling: nights with a minimum temperature at or below -10 C (14 F) in 122 years, most in 1895 with 110.
19 fixed thresholds have at least one qualifying day at Grayling.

Days at or above 30 C (86 F)

122 years with a qualifying day

Days per year at Grayling with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 1955.

Days at or above 30 C (86 F) per year at Grayling
Year	Days	Decade average
1894	47	39.2
1895	43	39.2
1896	38	39.2
1897	36	39.2
1898	46	39.2
1899	25	39.2
1900	33	21.3
1902	16	21.3
1904	6	21.3
1905	16	21.3
1906	20	21.3
1909	37	21.3
1912	15	23
1913	25	23
1916	35	23
1918	17	23
1920	14	18.1
1921	45	18.1
1922	14	18.1
1923	16	18.1
1924	5	18.1
1925	24	18.1
1926	15	18.1
1927	13	18.1
1928	12	18.1
1929	23	18.1
1930	31	30.6
1931	35	30.6
1932	20	30.6
1933	39	30.6
1934	34	30.6
1935	31	30.6
1936	25	30.6
1937	35	30.6
1938	25	30.6
1939	31	30.6
1940	14	16.4
1941	21	16.4
1942	9	16.4
1943	2	16.4
1944	13	16.4
1945	14	16.4
1946	14	16.4
1947	27	16.4
1948	20	16.4
1949	30	16.4
1950	8	21.9
1951	6	21.9
1952	33	21.9
1953	21	21.9
1954	20	21.9
1955	60	21.9
1956	10	21.9
1957	16	21.9
1958	16	21.9
1959	29	21.9
1960	8	16.6
1961	12	16.6
1962	13	16.6
1963	18	16.6
1964	27	16.6
1965	9	16.6
1966	24	16.6
1967	10	16.6
1968	21	16.6
1969	24	16.6
1971	21	20.1
1972	17	20.1
1973	18	20.1
1974	12	20.1
1975	21	20.1
1976	29	20.1
1977	27	20.1
1978	25	20.1
1979	11	20.1
1980	26	20.7
1981	11	20.7
1982	9	20.7
1983	39	20.7
1984	13	20.7
1985	10	20.7
1986	12	20.7
1987	35	20.7
1988	35	20.7
1989	17	20.7
1990	6	12.9
1991	25	12.9
1992	6	12.9
1993	10	12.9
1994	6	12.9
1995	21	12.9
1996	6	12.9
1997	12	12.9
1998	18	12.9
1999	19	12.9
2000	4	15.8
2001	23	15.8
2002	28	15.8
2003	14	15.8
2004	5	15.8
2005	28	15.8
2006	16	15.8
2007	29	15.8
2008	4	15.8
2009	7	15.8
2010	21	21.2
2011	24	21.2
2012	36	21.2
2013	20	21.2
2014	5	21.2
2015	13	21.2
2016	30	21.2
2017	15	21.2
2018	34	21.2
2019	14	21.2
2020	27	20
2021	19	20
2022	16	20
2023	22	20
2024	18	20
2025	24	20
2026	14	20

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

First to last qualifying date each year at Grayling
Year	First date	Last date
1894	1894-05-12	1894-09-02
1895	1895-05-05	1895-09-22
1896	1896-04-16	1896-08-10
1897	1897-06-14	1897-10-02
1898	1898-06-01	1898-10-02
1899	1899-04-29	1899-09-02
1900	1900-05-13	1900-09-11
1902	1902-07-04	1902-08-31
1904	1904-06-12	1904-07-18
1905	1905-06-15	1905-09-30
1906	1906-05-17	1906-09-18
1909	1909-05-29	1909-08-27
1912	1912-06-24	1912-09-09
1913	1913-05-28	1913-10-01
1916	1916-07-06	1916-08-22
1918	1918-05-06	1918-08-21
1920	1920-06-04	1920-09-27
1921	1921-05-21	1921-09-02
1922	1922-05-11	1922-10-01
1923	1923-06-02	1923-08-12
1924	1924-06-23	1924-08-31
1925	1925-06-01	1925-09-05
1926	1926-05-08	1926-08-29
1927	1927-06-29	1927-09-16
1928	1928-07-03	1928-08-17
1929	1929-05-30	1929-09-05
1930	1930-05-07	1930-09-13
1931	1931-05-19	1931-09-14
1932	1932-05-15	1932-09-19
1933	1933-06-02	1933-09-08
1934	1934-05-31	1934-08-19
1935	1935-07-03	1935-08-19
1936	1936-05-09	1936-09-15
1937	1937-05-30	1937-09-03
1938	1938-06-15	1938-08-20
1939	1939-05-07	1939-09-16
1940	1940-06-03	1940-08-16
1941	1941-06-20	1941-08-08
1942	1942-06-10	1942-08-22
1943	1943-06-21	1943-07-13
1944	1944-06-27	1944-08-15
1945	1945-06-23	1945-09-08
1946	1946-06-23	1946-09-18
1947	1947-06-10	1947-10-15
1948	1948-06-02	1948-09-13
1949	1949-05-05	1949-08-26
1950	1950-06-06	1950-07-12
1951	1951-07-24	1951-08-29
1952	1952-06-06	1952-09-14
1953	1953-05-09	1953-09-03
1954	1954-06-13	1954-09-02
1955	1955-05-03	1955-09-18
1956	1956-06-09	1956-08-28
1957	1957-06-16	1957-08-10
1958	1958-05-17	1958-08-11
1959	1959-05-02	1959-09-09
1960	1960-07-12	1960-09-09
1961	1961-06-12	1961-09-10
1962	1962-05-15	1962-08-29
1963	1963-06-02	1963-07-27
1964	1964-05-22	1964-09-03
1965	1965-06-27	1965-08-16
1966	1966-06-22	1966-09-01
1967	1967-06-12	1967-09-12
1968	1968-05-16	1968-09-05
1969	1969-05-28	1969-09-01
1971	1971-06-05	1971-09-06
1972	1972-05-19	1972-08-31
1973	1973-06-11	1973-09-04
1974	1974-05-22	1974-08-21
1975	1975-05-19	1975-08-05
1976	1976-06-05	1976-09-09
1977	1977-05-14	1977-08-29
1978	1978-05-26	1978-09-11
1979	1979-06-16	1979-07-25
1980	1980-04-23	1980-08-30
1981	1981-06-15	1981-08-04
1982	1982-07-06	1982-08-17
1983	1983-06-12	1983-09-11
1984	1984-06-07	1984-08-30
1985	1985-04-23	1985-09-08
1986	1986-05-07	1986-07-25
1987	1987-05-18	1987-08-15
1988	1988-05-30	1988-08-15
1989	1989-06-27	1989-08-13
1990	1990-04-26	1990-09-02
1991	1991-05-13	1991-08-31
1992	1992-05-22	1992-08-26
1993	1993-05-10	1993-08-26
1994	1994-05-22	1994-06-19
1995	1995-06-17	1995-09-06
1996	1996-06-28	1996-08-08
1997	1997-06-11	1997-08-03
1998	1998-05-16	1998-09-12
1999	1999-05-30	1999-09-06
2000	2000-06-09	2000-09-01
2001	2001-06-14	2001-08-10
2002	2002-04-17	2002-09-11
2003	2003-06-23	2003-08-26
2004	2004-06-09	2004-07-22
2005	2005-06-06	2005-09-14
2006	2006-05-29	2006-08-02
2007	2007-05-31	2007-10-09
2008	2008-07-17	2008-09-03
2009	2009-06-22	2009-08-17
2010	2010-05-25	2010-09-01
2011	2011-05-30	2011-09-02
2012	2012-05-19	2012-09-12
2013	2013-05-20	2013-09-10
2014	2014-05-27	2014-06-30
2015	2015-07-18	2015-09-06
2016	2016-05-24	2016-09-06
2017	2017-05-17	2017-09-26
2018	2018-05-24	2018-09-17
2019	2019-06-07	2019-09-21
2020	2020-05-26	2020-08-25
2021	2021-06-05	2021-08-30
2022	2022-05-13	2022-08-25
2023	2023-04-14	2023-09-06
2024	2024-06-18	2024-09-17
2025	2025-06-18	2025-10-05
2026	2026-05-27	2026-08-01

Every Fixed Threshold

Fixed thresholds at Grayling
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	122	60	1955	14
35 C (95 F): Days	56	15	1921	1
40 C (104 F): Days	1	2	1936	2
90 F (32.2 C): Days	112	36	1894	3
100 F (37.8 C): Days	13	7	1936	1
0 C (32 F): Ice days (max	122	118	1943	52
0 C (32 F): Frost days (min	122	223	1943	112
-10 C (14 F): Days with min	122	110	1895	47
-20 C (-4 F): Days with min	122	41	1904	20
-30 C (-22 F): Days with min	70	9	1904	4
-40 C (-40 F): Days with min	2	1	1899	1
20 C (68 F): Tropical nights (min	102	11	1955	5
25 C (77 F): Days with min	2	1	1934	1
10 mm (0.39 in): Days with 10 mm or more rain	120	38	1945	26
25 mm (0.98 in): Days with 25 mm or more rain	118	15	1909	8
50 mm (1.97 in): Days with 50 mm or more rain	64	3	1909	3
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1945	1
10 cm (3.9 in): Days with 10 cm or more snowfall	87	17	1985	5
25 cm (9.8 in): Days with 25 cm or more snowfall	24	2	1904	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Grayling 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Grayling Threshold Days by Year (USC00203391)

Key Facts for Grayling Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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