Tuscola Threshold Days by Year (USC00118684)

20 fixed thresholds counted per year at Tuscola (USC00118684): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tuscola Thresholds

Tuscola: days with 10 mm (0.39 in) or more of precipitation in 113 years, most in 1993 with 52.
Tuscola: days with 25 mm (0.98 in) or more of precipitation in 113 years, most in 2008 with 18.
Tuscola: nights with a minimum temperature at or below 0 C (32 F) in 95 years, most in 1904 with 152.
Tuscola: nights with a minimum temperature at or below -10 C (14 F) in 95 years, most in 1904 with 54.
20 fixed thresholds have at least one qualifying day at Tuscola.

Days at or above 30 C (86 F)

90 years with a qualifying day

Days per year at Tuscola with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 102 in 1991.

Days at or above 30 C (86 F) per year at Tuscola
Year	Days	Decade average
1894	78	77.5
1897	72	77.5
1898	68	77.5
1899	92	77.5
1900	79	66.6
1901	101	66.6
1902	59	66.6
1903	47	66.6
1904	36	66.6
1905	51	66.6
1906	71	66.6
1907	59	66.6
1908	96	66.6
1909	67	66.6
1945	45	63.4
1946	61	63.4
1947	64	63.4
1948	80	63.4
1949	67	63.4
1950	36	71.5
1951	50	71.5
1952	85	71.5
1953	94	71.5
1954	92	71.5
1955	85	71.5
1956	75	71.5
1957	60	71.5
1958	47	71.5
1959	91	71.5
1960	61	63.7
1961	76	63.7
1962	63	63.7
1963	65	63.7
1964	63	63.7
1965	54	63.7
1966	72	63.7
1967	55	63.7
1968	61	63.7
1969	67	63.7
1970	73	67.9
1971	70	67.9
1972	69	67.9
1973	59	67.9
1974	46	67.9
1975	73	67.9
1976	63	67.9
1977	82	67.9
1978	76	67.9
1980	84	66.4
1981	52	66.4
1982	54	66.4
1984	78	66.4
1985	53	66.4
1986	65	66.4
1988	97	66.4
1989	48	66.4
1991	102	67.5
1992	42	67.5
1993	62	67.5
1994	71	67.5
1995	72	67.5
1996	62	67.5
1997	54	67.5
1998	75	67.5
2001	48	47.6
2002	65	47.6
2003	38	47.6
2004	31	47.6
2005	72	47.6
2006	49	47.6
2007	68	47.6
2008	35	47.6
2009	22	47.6
2010	64	51.3
2011	65	51.3
2012	76	51.3
2013	40	51.3
2014	27	51.3
2015	35	51.3
2016	55	51.3
2017	47	51.3
2018	58	51.3
2019	46	51.3
2020	43	50.3
2021	66	50.3
2022	47	50.3
2023	38	50.3
2024	43	50.3
2025	62	50.3
2026	53	50.3

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

First to last qualifying date each year at Tuscola
Year	First date	Last date
1894	1894-04-29	1894-09-09
1897	1897-06-11	1897-10-16
1898	1898-06-02	1898-10-03
1899	1899-04-28	1899-10-24
1900	1900-04-29	1900-10-05
1901	1901-04-29	1901-10-01
1902	1902-04-21	1902-09-07
1903	1903-05-15	1903-10-03
1904	1904-05-25	1904-09-28
1905	1905-05-10	1905-09-29
1906	1906-04-28	1906-09-22
1907	1907-03-21	1907-10-02
1908	1908-05-16	1908-10-18
1909	1909-05-05	1909-09-20
1945	1945-05-26	1945-09-25
1946	1946-06-07	1946-10-07
1947	1947-06-09	1947-10-22
1948	1948-05-28	1948-09-27
1949	1949-05-03	1949-09-04
1950	1950-05-23	1950-10-19
1951	1951-04-28	1951-10-04
1952	1952-04-28	1952-10-01
1953	1953-05-21	1953-10-22
1954	1954-04-25	1954-10-10
1955	1955-05-03	1955-09-22
1956	1956-05-06	1956-09-29
1957	1957-06-05	1957-09-03
1958	1958-05-15	1958-09-25
1959	1959-05-02	1959-10-04
1960	1960-04-24	1960-09-24
1961	1961-05-31	1961-09-24
1962	1962-05-14	1962-10-12
1963	1963-05-08	1963-10-15
1964	1964-05-16	1964-09-11
1965	1965-05-04	1965-09-20
1966	1966-05-27	1966-09-04
1967	1967-04-09	1967-10-04
1968	1968-05-02	1968-09-30
1969	1969-05-05	1969-09-06
1970	1970-05-12	1970-09-25
1971	1971-05-16	1971-10-03
1972	1972-05-18	1972-09-21
1973	1973-06-08	1973-09-26
1974	1974-05-21	1974-08-27
1975	1975-05-18	1975-10-13
1976	1976-06-04	1976-10-03
1977	1977-04-17	1977-09-18
1978	1978-05-25	1978-09-21
1980	1980-04-22	1980-10-09
1981	1981-03-31	1981-09-30
1982	1982-05-05	1982-10-06
1984	1984-05-19	1984-09-22
1985	1985-05-12	1985-09-20
1986	1986-04-25	1986-09-29
1988	1988-05-07	1988-09-23
1989	1989-04-26	1989-10-13
1991	1991-05-13	1991-09-30
1992	1992-05-16	1992-10-14
1993	1993-05-08	1993-08-30
1994	1994-05-22	1994-10-01
1995	1995-06-05	1995-09-13
1996	1996-05-17	1996-09-11
1997	1997-05-17	1997-10-07
1998	1998-05-14	1998-09-29
2001	2001-05-01	2001-09-09
2002	2002-06-01	2002-10-04
2003	2003-05-10	2003-09-14
2004	2004-04-19	2004-09-24
2005	2005-05-11	2005-10-06
2006	2006-05-25	2006-10-05
2007	2007-05-01	2007-10-09
2008	2008-05-31	2008-09-25
2009	2009-05-24	2009-08-28
2010	2010-05-24	2010-10-11
2011	2011-05-11	2011-09-14
2012	2012-04-04	2012-09-07
2013	2013-05-15	2013-09-20
2014	2014-05-09	2014-09-06
2015	2015-06-06	2015-09-09
2016	2016-05-31	2016-09-26
2017	2017-05-19	2017-09-27
2018	2018-05-03	2018-10-09
2019	2019-05-19	2019-10-03
2020	2020-05-25	2020-09-09
2021	2021-05-24	2021-10-11
2022	2022-05-11	2022-09-22
2023	2023-05-25	2023-10-04
2024	2024-05-20	2024-09-22
2025	2025-05-16	2025-10-04
2026	2026-03-27	2026-10-14

Every Fixed Threshold

Fixed thresholds at Tuscola
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	90	102	1991	53
35 C (95 F): Days	75	37	1988	5
40 C (104 F): Days	4	8	1954	3
45 C (113 F): Days	1	1	1954	1
90 F (32.2 C): Days	90	73	1988	23
100 F (37.8 C): Days	22	15	1988	6
110 F (43.3 C): Days	2	1	1901	1
0 C (32 F): Ice days (max	90	59	1978	28
0 C (32 F): Frost days (min	95	152	1904	64
-10 C (14 F): Days with min	95	54	1904	22
-20 C (-4 F): Days with min	73	18	1963	5
-30 C (-22 F): Days with min	5	2	1989	1
20 C (68 F): Tropical nights (min	95	60	2021	48
25 C (77 F): Days with min	22	3	1975	2
10 mm (0.39 in): Days with 10 mm or more rain	113	52	1993	32
25 mm (0.98 in): Days with 25 mm or more rain	113	18	2008	10
50 mm (1.97 in): Days with 50 mm or more rain	95	5	1985	5
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1900	1
10 cm (3.9 in): Days with 10 cm or more snowfall	62	6	1978	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1951	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 Tuscola 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).

Tuscola Threshold Days by Year (USC00118684)

Key Facts for Tuscola Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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