Ft Benton Threshold Days by Year

17 fixed thresholds counted per year at Ft Benton (USC00243113): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ft Benton Thresholds

Ft Benton: days with 10 mm (0.39 in) or more of precipitation in 94 years, most in 1975 with 22.
Ft Benton: days with a maximum temperature at or above 30 C (86 F) in 91 years, most in 1988 with 76.
Ft Benton: days with a maximum temperature at or above 90 F (32.2 C) in 91 years, most in 2022 with 53.
Ft Benton: days with a maximum temperature at or below 0 C (32 F) in 91 years, most in 1978 with 82.
17 fixed thresholds have at least one qualifying day at Ft Benton.

Days at or above 30 C (86 F)

91 years with a qualifying day

Days per year at Ft Benton with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 1988.

Days at or above 30 C (86 F) per year at Ft Benton
Year	Days	Decade average
1895	27	27
1902	18	27.5
1905	39	27.5
1906	46	27.5
1907	10	27.5
1908	34	27.5
1909	18	27.5
1910	34	22.7
1911	21	22.7
1912	13	22.7
1940	62	47.2
1941	56	47.2
1942	42	47.2
1943	46	47.2
1944	39	47.2
1945	54	47.2
1946	43	47.2
1947	46	47.2
1948	33	47.2
1949	51	47.2
1950	30	45.1
1951	31	45.1
1952	48	45.1
1953	54	45.1
1954	39	45.1
1955	42	45.1
1956	56	45.1
1957	52	45.1
1958	52	45.1
1959	47	45.1
1960	51	48.4
1961	69	48.4
1962	40	48.4
1963	60	48.4
1964	38	48.4
1965	31	48.4
1966	53	48.4
1967	59	48.4
1968	32	48.4
1969	51	48.4
1970	53	42.3
1971	49	42.3
1972	40	42.3
1973	53	42.3
1974	46	42.3
1975	23	42.3
1976	43	42.3
1977	36	42.3
1978	32	42.3
1979	48	42.3
1980	38	51.1
1981	46	51.1
1982	41	51.1
1983	47	51.1
1984	64	51.1
1985	51	51.1
1986	53	51.1
1987	54	51.1
1988	76	51.1
1989	41	51.1
1990	56	42.2
1991	53	42.2
1992	47	42.2
1993	16	42.2
1995	35	42.2
1996	46	42.2
2002	33	45.4
2003	61	45.4
2004	33	45.4
2005	42	45.4
2006	55	45.4
2007	52	45.4
2008	41	45.4
2009	46	45.4
2010	37	48.9
2011	53	48.9
2012	62	48.9
2013	51	48.9
2014	48	48.9
2015	48	48.9
2016	45	48.9
2017	62	48.9
2018	44	48.9
2019	39	48.9
2020	49	58.3
2021	68	58.3
2022	69	58.3
2023	53	58.3
2024	54	58.3
2025	56	58.3
2026	59	58.3

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

First to last qualifying date each year at Ft Benton
Year	First date	Last date
1895	1895-06-30	1895-09-01
1902	1902-05-29	1902-08-27
1905	1905-06-02	1905-09-25
1906	1906-04-22	1906-09-20
1907	1907-07-11	1907-08-24
1908	1908-06-25	1908-09-06
1909	1909-08-04	1909-09-27
1910	1910-04-20	1910-08-20
1911	1911-05-06	1911-09-01
1912	1912-06-19	1912-08-25
1940	1940-05-10	1940-09-13
1941	1941-05-11	1941-08-23
1942	1942-05-22	1942-10-10
1943	1943-05-27	1943-10-08
1944	1944-05-15	1944-09-24
1945	1945-06-20	1945-09-13
1946	1946-04-26	1946-09-30
1947	1947-05-02	1947-09-22
1948	1948-06-07	1948-09-22
1949	1949-05-10	1949-09-19
1950	1950-05-27	1950-09-06
1951	1951-05-22	1951-09-07
1952	1952-04-25	1952-10-02
1953	1953-05-06	1953-10-10
1954	1954-05-18	1954-09-02
1955	1955-06-21	1955-09-04
1956	1956-05-17	1956-09-26
1957	1957-05-02	1957-09-27
1958	1958-05-11	1958-10-18
1959	1959-06-02	1959-09-14
1960	1960-05-11	1960-10-06
1961	1961-05-26	1961-09-06
1962	1962-04-19	1962-09-27
1963	1963-04-14	1963-10-02
1964	1964-05-19	1964-10-13
1965	1965-06-10	1965-08-25
1966	1966-05-03	1966-09-23
1967	1967-05-21	1967-09-29
1968	1968-04-30	1968-09-11
1969	1969-05-13	1969-09-13
1970	1970-06-02	1970-10-04
1971	1971-05-26	1971-10-09
1972	1972-05-17	1972-08-29
1973	1973-05-15	1973-09-30
1974	1974-04-25	1974-09-25
1975	1975-05-15	1975-10-03
1976	1976-05-13	1976-10-01
1977	1977-05-31	1977-09-13
1978	1978-06-05	1978-09-04
1979	1979-05-15	1979-09-21
1980	1980-04-20	1980-10-08
1981	1981-06-26	1981-09-19
1982	1982-05-25	1982-09-09
1983	1983-05-25	1983-09-26
1984	1984-05-29	1984-09-18
1985	1985-05-02	1985-08-30
1986	1986-05-20	1986-08-29
1987	1987-04-27	1987-10-03
1988	1988-05-12	1988-09-15
1989	1989-05-10	1989-09-29
1990	1990-06-23	1990-10-01
1991	1991-06-02	1991-10-11
1992	1992-04-29	1992-10-02
1993	1993-05-11	1993-10-05
1995	1995-05-30	1995-09-12
1996	1996-04-09	1996-10-11
2002	2002-06-16	2002-09-16
2003	2003-05-25	2003-09-07
2004	2004-06-04	2004-09-12
2005	2005-06-21	2005-09-09
2006	2006-05-17	2006-09-04
2007	2007-05-18	2007-09-06
2008	2008-06-18	2008-09-19
2009	2009-05-31	2009-09-27
2010	2010-05-18	2010-10-04
2011	2011-06-24	2011-10-04
2012	2012-04-24	2012-09-23
2013	2013-05-13	2013-09-22
2014	2014-05-23	2014-09-26
2015	2015-06-08	2015-10-11
2016	2016-05-05	2016-09-28
2017	2017-05-06	2017-09-12
2018	2018-06-05	2018-09-11
2019	2019-06-03	2019-09-16
2020	2020-06-13	2020-10-07
2021	2021-05-18	2021-10-06
2022	2022-06-18	2022-09-29
2023	2023-05-17	2023-09-27
2024	2024-05-29	2024-10-05
2025	2025-05-04	2025-09-30
2026	2026-05-14	2026-10-06

Every Fixed Threshold

Fixed thresholds at Ft Benton
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	91	76	1988	59
35 C (95 F): Days	89	32	2022	19
40 C (104 F): Days	19	3	2003	3
90 F (32.2 C): Days	91	53	2022	36
100 F (37.8 C): Days	53	12	2003	7
0 C (32 F): Ice days (max	91	82	1978	14
0 C (32 F): Frost days (min	91	201	2009	99
-10 C (14 F): Days with min	91	104	1955	23
-20 C (-4 F): Days with min	91	48	1949	11
-30 C (-22 F): Days with min	76	20	1950	4
-40 C (-40 F): Days with min	13	4	1969	1
20 C (68 F): Tropical nights (min	30	6	2021	3
10 mm (0.39 in): Days with 10 mm or more rain	94	22	1975	8
25 mm (0.98 in): Days with 25 mm or more rain	71	5	1981	2
50 mm (1.97 in): Days with 50 mm or more rain	10	2	1951	1
10 cm (3.9 in): Days with 10 cm or more snowfall	76	13	1958	1
25 cm (9.8 in): Days with 25 cm or more snowfall	12	2	1969	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1895.

Download the Data

Data for Ft Benton 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).

Ft Benton Threshold Days by Year

Key Facts for Ft Benton Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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