Tooele Threshold Days by Year (USC00428771)

17 fixed thresholds counted per year at Tooele (USC00428771): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tooele Thresholds

Tooele: nights with a minimum temperature at or below 0 C (32 F) in 129 years, most in 1984 with 169.
Tooele: nights with a minimum temperature at or below -10 C (14 F) in 129 years, most in 1993 with 59.
Tooele: nights with a minimum temperature at or above 20 C (68 F) in 129 years, most in 2007 with 46.
Tooele: days with a maximum temperature at or above 30 C (86 F) in 127 years, most in 2007 with 106.
17 fixed thresholds have at least one qualifying day at Tooele.

Days at or above 30 C (86 F)

127 years with a qualifying day

Days per year at Tooele with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 106 in 2007.

Days at or above 30 C (86 F) per year at Tooele
Year	Days	Decade average
1897	43	49.7
1898	53	49.7
1899	53	49.7
1900	57	45.9
1901	53	45.9
1902	54	45.9
1903	63	45.9
1904	37	45.9
1905	48	45.9
1906	39	45.9
1907	34	45.9
1908	32	45.9
1909	42	45.9
1910	61	48
1911	49	48
1912	18	48
1913	23	48
1914	33	48
1915	54	48
1916	48	48
1917	71	48
1918	49	48
1919	74	48
1920	48	54.8
1921	58	54.8
1922	79	54.8
1923	41	54.8
1925	43	54.8
1926	50	54.8
1927	53	54.8
1928	60	54.8
1929	61	54.8
1930	53	68.5
1931	77	68.5
1932	59	68.5
1933	79	68.5
1934	92	68.5
1935	76	68.5
1936	66	68.5
1937	65	68.5
1938	54	68.5
1939	64	68.5
1940	80	63.9
1941	46	63.9
1942	66	63.9
1943	70	63.9
1944	65	63.9
1945	59	63.9
1946	72	63.9
1947	60	63.9
1948	67	63.9
1949	54	63.9
1950	45	48.2
1951	33	48.2
1952	52	48.2
1953	57	48.2
1954	45	48.2
1955	45	48.2
1956	50	48.2
1957	48	48.2
1958	56	48.2
1959	51	48.2
1960	55	50.6
1961	60	50.6
1962	46	50.6
1963	57	50.6
1964	51	50.6
1965	23	50.6
1966	60	50.6
1967	59	50.6
1968	41	50.6
1969	54	50.6
1970	48	48.1
1971	56	48.1
1972	38	48.1
1973	37	48.1
1974	52	48.1
1975	37	48.1
1976	41	48.1
1977	56	48.1
1978	60	48.1
1979	56	48.1
1980	55	66.1
1981	65	66.1
1982	46	66.1
1983	51	66.1
1984	63	66.1
1985	67	66.1
1986	76	66.1
1987	72	66.1
1988	94	66.1
1989	72	66.1
1990	76	67.8
1991	66	67.8
1992	75	67.8
1993	44	67.8
1994	87	67.8
1997	67	67.8
1998	57	67.8
1999	70	67.8
2000	88	87.3
2001	101	87.3
2002	91	87.3
2003	95	87.3
2004	69	87.3
2005	79	87.3
2006	98	87.3
2007	106	87.3
2008	78	87.3
2009	68	87.3
2010	74	77.3
2011	70	77.3
2012	84	77.3
2013	74	77.3
2014	63	77.3
2015	78	77.3
2016	83	77.3
2017	87	77.3
2018	94	77.3
2019	66	77.3
2020	91	86.9
2021	90	86.9
2022	93	86.9
2023	56	86.9
2024	90	86.9
2025	95	86.9
2026	93	86.9

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

First to last qualifying date each year at Tooele
Year	First date	Last date
1897	1897-05-29	1897-09-07
1898	1898-06-16	1898-09-19
1899	1899-06-11	1899-09-21
1900	1900-05-09	1900-09-09
1901	1901-05-17	1901-09-01
1902	1902-05-29	1902-09-08
1903	1903-05-13	1903-09-05
1904	1904-06-15	1904-09-09
1905	1905-06-12	1905-09-23
1906	1906-06-11	1906-08-18
1907	1907-06-28	1907-09-11
1908	1908-06-25	1908-09-07
1909	1909-06-03	1909-08-27
1910	1910-05-23	1910-09-10
1911	1911-06-12	1911-09-15
1912	1912-06-06	1912-08-26
1913	1913-06-19	1913-08-29
1914	1914-06-18	1914-09-19
1915	1915-06-08	1915-09-21
1916	1916-06-09	1916-09-08
1917	1917-06-09	1917-09-20
1918	1918-06-09	1918-09-21
1919	1919-05-28	1919-09-14
1920	1920-05-27	1920-09-19
1921	1921-06-03	1921-09-01
1922	1922-05-23	1922-09-26
1923	1923-06-11	1923-09-13
1925	1925-05-28	1925-08-26
1926	1926-05-22	1926-09-12
1927	1927-04-26	1927-09-20
1928	1928-05-06	1928-09-25
1929	1929-05-24	1929-09-19
1930	1930-05-27	1930-09-18
1931	1931-05-31	1931-09-14
1932	1932-05-18	1932-09-17
1933	1933-05-29	1933-09-29
1934	1934-05-05	1934-10-02
1935	1935-06-07	1935-09-19
1936	1936-05-13	1936-09-09
1937	1937-06-18	1937-09-19
1938	1938-05-26	1938-09-27
1939	1939-05-29	1939-09-20
1940	1940-05-29	1940-09-10
1941	1941-05-10	1941-09-06
1942	1942-05-21	1942-09-08
1943	1943-05-27	1943-09-17
1944	1944-06-23	1944-09-13
1945	1945-06-20	1945-09-15
1946	1946-06-03	1946-09-11
1947	1947-05-03	1947-09-25
1948	1948-05-16	1948-09-15
1949	1949-06-11	1949-09-08
1950	1950-06-05	1950-09-06
1951	1951-05-27	1951-08-19
1952	1952-06-05	1952-09-08
1953	1953-06-10	1953-09-15
1954	1954-05-19	1954-09-11
1955	1955-06-07	1955-09-12
1956	1956-05-31	1956-09-19
1957	1957-06-04	1957-09-07
1958	1958-05-19	1958-09-11
1959	1959-06-05	1959-08-28
1960	1960-05-11	1960-09-13
1961	1961-06-08	1961-08-28
1962	1962-06-10	1962-09-19
1963	1963-06-27	1963-10-03
1964	1964-05-16	1964-08-23
1965	1965-06-22	1965-08-12
1966	1966-06-16	1966-09-23
1967	1967-05-22	1967-09-05
1968	1968-06-17	1968-08-07
1969	1969-06-05	1969-09-29
1970	1970-05-17	1970-09-02
1971	1971-06-16	1971-09-10
1972	1972-06-15	1972-08-22
1973	1973-06-07	1973-08-23
1974	1974-05-27	1974-09-09
1975	1975-06-29	1975-09-01
1976	1976-06-07	1976-09-05
1977	1977-06-01	1977-09-08
1978	1978-06-09	1978-09-06
1979	1979-05-23	1979-09-09
1980	1980-06-10	1980-09-18
1981	1981-05-01	1981-09-19
1982	1982-05-26	1982-09-09
1983	1983-05-26	1983-09-17
1984	1984-05-13	1984-09-19
1985	1985-06-07	1985-09-02
1986	1986-05-30	1986-09-14
1987	1987-05-14	1987-10-03
1988	1988-05-23	1988-09-10
1989	1989-05-07	1989-10-14
1990	1990-06-09	1990-09-16
1991	1991-06-11	1991-09-05
1992	1992-05-17	1992-10-01
1993	1993-05-12	1993-09-30
1994	1994-05-12	1994-09-28
1997	1997-05-31	1997-09-14
1998	1998-06-29	1998-09-18
1999	1999-06-13	1999-09-22
2000	2000-04-27	2000-09-17
2001	2001-05-09	2001-10-01
2002	2002-05-18	2002-09-16
2003	2003-05-23	2003-10-09
2004	2004-05-04	2004-09-18
2005	2005-05-20	2005-09-20
2006	2006-05-15	2006-09-14
2007	2007-04-29	2007-09-16
2008	2008-05-18	2008-09-30
2009	2009-05-18	2009-09-26
2010	2010-06-23	2010-10-03
2011	2011-06-22	2011-09-30
2012	2012-04-23	2012-09-16
2013	2013-05-13	2013-09-06
2014	2014-05-27	2014-09-26
2015	2015-05-31	2015-10-01
2016	2016-06-05	2016-09-20
2017	2017-05-24	2017-09-12
2018	2018-06-04	2018-09-29
2019	2019-06-19	2019-09-15
2020	2020-05-28	2020-09-24
2021	2021-06-01	2021-09-16
2022	2022-05-26	2022-09-27
2023	2023-06-25	2023-09-18
2024	2024-06-05	2024-10-11
2025	2025-05-10	2025-09-14
2026	2026-05-11	2026-10-05

Every Fixed Threshold

Fixed thresholds at Tooele
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	127	106	2007	93
35 C (95 F): Days	115	49	2007	47
40 C (104 F): Days	9	5	2003	4
90 F (32.2 C): Days	127	78	2001	71
100 F (37.8 C): Days	49	22	2003	20
0 C (32 F): Ice days (max	127	50	1930	1
0 C (32 F): Frost days (min	129	169	1984	77
-10 C (14 F): Days with min	129	59	1993	5
-20 C (-4 F): Days with min	32	8	1937	1
20 C (68 F): Tropical nights (min	129	46	2007	36
25 C (77 F): Days with min	51	8	1922	1
10 mm (0.39 in): Days with 10 mm or more rain	104	27	1997	4
25 mm (0.98 in): Days with 25 mm or more rain	86	5	1938	1
50 mm (1.97 in): Days with 50 mm or more rain	12	2	2008	1
10 cm (3.9 in): Days with 10 cm or more snowfall	85	20	1975	3
25 cm (9.8 in): Days with 25 cm or more snowfall	54	5	1944	1
50 cm (19.7 in): Days with 50 cm or more snowfall	3	1	1971	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 Tooele 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).

Tooele Threshold Days by Year (USC00428771)

Key Facts for Tooele Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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