Bismarck Threshold Days by Year (USW00024011)

19 fixed thresholds counted per year at Bismarck (USW00024011): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bismarck Thresholds

Bismarck: days with a maximum temperature at or above 30 C (86 F) in 79 years, most in 2021 with 80.
Bismarck: days with a maximum temperature at or above 90 F (32.2 C) in 79 years, most in 2021 with 51.
Bismarck: days with a maximum temperature at or below 0 C (32 F) in 79 years, most in 1950 with 118.
Bismarck: nights with a minimum temperature at or below 0 C (32 F) in 79 years, most in 2002 with 208.
19 fixed thresholds have at least one qualifying day at Bismarck.

Days at or above 30 C (86 F)

79 years with a qualifying day

Days per year at Bismarck with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 80 in 2021.

Days at or above 30 C (86 F) per year at Bismarck
Year	Days	Decade average
1948	49	50.5
1949	52	50.5
1950	34	39.2
1951	19	39.2
1952	52	39.2
1953	40	39.2
1954	28	39.2
1955	46	39.2
1956	34	39.2
1957	34	39.2
1958	47	39.2
1959	58	39.2
1960	54	36.6
1961	56	36.6
1962	29	36.6
1963	32	36.6
1964	32	36.6
1965	16	36.6
1966	47	36.6
1967	37	36.6
1968	20	36.6
1969	43	36.6
1970	56	36.9
1971	33	36.9
1972	32	36.9
1973	35	36.9
1974	38	36.9
1975	29	36.9
1976	64	36.9
1977	27	36.9
1978	31	36.9
1979	24	36.9
1980	40	40.7
1981	28	40.7
1982	31	40.7
1983	50	40.7
1984	42	40.7
1985	27	40.7
1986	24	40.7
1987	42	40.7
1988	65	40.7
1989	58	40.7
1990	49	36
1991	49	36
1992	28	36
1993	17	36
1994	31	36
1995	31	36
1996	34	36
1997	52	36
1998	43	36
1999	26	36
2000	46	45.4
2001	51	45.4
2002	59	45.4
2003	57	45.4
2004	30	45.4
2005	44	45.4
2006	61	45.4
2007	46	45.4
2008	42	45.4
2009	18	45.4
2010	29	36.5
2011	27	36.5
2012	51	36.5
2013	33	36.5
2014	25	36.5
2015	45	36.5
2016	32	36.5
2017	48	36.5
2018	45	36.5
2019	30	36.5
2020	56	53.7
2021	80	53.7
2022	56	53.7
2023	47	53.7
2024	54	53.7
2025	33	53.7
2026	50	53.7

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

First to last qualifying date each year at Bismarck
Year	First date	Last date
1948	1948-05-18	1948-09-18
1949	1949-04-29	1949-10-05
1950	1950-05-22	1950-09-07
1951	1951-05-23	1951-08-23
1952	1952-04-26	1952-09-27
1953	1953-06-02	1953-10-01
1954	1954-05-20	1954-08-31
1955	1955-05-01	1955-10-10
1956	1956-05-21	1956-10-12
1957	1957-06-02	1957-10-02
1958	1958-05-11	1958-10-13
1959	1959-05-02	1959-09-13
1960	1960-05-12	1960-10-08
1961	1961-04-19	1961-09-18
1962	1962-04-24	1962-10-14
1963	1963-05-30	1963-10-04
1964	1964-05-20	1964-09-17
1965	1965-07-15	1965-08-16
1966	1966-05-04	1966-10-07
1967	1967-05-22	1967-09-07
1968	1968-04-30	1968-09-14
1969	1969-05-14	1969-09-14
1970	1970-05-17	1970-10-05
1971	1971-07-02	1971-09-13
1972	1972-05-15	1972-09-19
1973	1973-06-09	1973-08-31
1974	1974-06-03	1974-09-26
1975	1975-05-16	1975-09-16
1976	1976-06-02	1976-09-30
1977	1977-04-09	1977-08-25
1978	1978-07-02	1978-09-10
1979	1979-06-11	1979-09-26
1980	1980-04-20	1980-09-30
1981	1981-06-26	1981-09-12
1982	1982-07-03	1982-09-10
1983	1983-06-10	1983-09-27
1984	1984-05-16	1984-09-21
1985	1985-05-03	1985-08-08
1986	1986-05-04	1986-08-24
1987	1987-04-18	1987-10-03
1988	1988-05-25	1988-09-06
1989	1989-04-22	1989-09-30
1990	1990-04-21	1990-09-25
1991	1991-06-11	1991-10-16
1992	1992-04-30	1992-10-01
1993	1993-05-13	1993-10-06
1994	1994-05-10	1994-09-10
1995	1995-06-13	1995-09-15
1996	1996-06-09	1996-10-05
1997	1997-05-17	1997-10-02
1998	1998-05-17	1998-09-18
1999	1999-05-28	1999-08-31
2000	2000-05-05	2000-09-28
2001	2001-04-28	2001-09-05
2002	2002-05-28	2002-09-17
2003	2003-04-13	2003-10-19
2004	2004-04-27	2004-09-19
2005	2005-05-20	2005-10-01
2006	2006-05-18	2006-10-01
2007	2007-05-18	2007-09-29
2008	2008-06-24	2008-09-19
2009	2009-06-25	2009-09-19
2010	2010-05-28	2010-08-29
2011	2011-06-29	2011-10-05
2012	2012-04-24	2012-09-29
2013	2013-05-13	2013-09-06
2014	2014-05-23	2014-09-27
2015	2015-05-02	2015-10-10
2016	2016-05-05	2016-09-11
2017	2017-05-07	2017-09-12
2018	2018-05-16	2018-09-07
2019	2019-05-15	2019-09-20
2020	2020-06-01	2020-09-22
2021	2021-05-01	2021-10-05
2022	2022-06-11	2022-09-19
2023	2023-05-23	2023-10-01
2024	2024-05-17	2024-10-10
2025	2025-05-10	2025-10-03
2026	2026-04-22	2026-09-10

Every Fixed Threshold

Fixed thresholds at Bismarck
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	79	80	2021	50
35 C (95 F): Days	77	32	1988	16
40 C (104 F): Days	27	4	1988	5
90 F (32.2 C): Days	79	51	2021	33
100 F (37.8 C): Days	52	15	2021	10
110 F (43.3 C): Days	2	1	2002	1
0 C (32 F): Ice days (max	79	118	1950	36
0 C (32 F): Frost days (min	79	208	2002	115
-10 C (14 F): Days with min	79	122	1950	32
-20 C (-4 F): Days with min	79	64	1950	11
-30 C (-22 F): Days with min	71	19	1996	1
-40 C (-40 F): Days with min	10	2	1967	1
20 C (68 F): Tropical nights (min	67	13	2021	9
10 mm (0.39 in): Days with 10 mm or more rain	79	24	2019	11
25 mm (0.98 in): Days with 25 mm or more rain	75	9	2013	1
50 mm (1.97 in): Days with 50 mm or more rain	20	3	1993	2
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1993	1
10 cm (3.9 in): Days with 10 cm or more snowfall	68	8	1996	2
25 cm (9.8 in): Days with 25 cm or more snowfall	13	3	2022	3

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

Data for Bismarck 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).

Bismarck Threshold Days by Year (USW00024011)

Key Facts for Bismarck Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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