Yankton 2 E Threshold Days by Year

19 fixed thresholds counted per year at Yankton 2 E (USC00399502): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Yankton 2 E Thresholds

Yankton 2 E: days with a maximum temperature at or above 30 C (86 F) in 79 years, most in 1988 with 88.
Yankton 2 E: days with a maximum temperature at or above 35 C (95 F) in 79 years, most in 1955 with 36.
Yankton 2 E: days with a maximum temperature at or above 90 F (32.2 C) in 79 years, most in 2002 with 63.
Yankton 2 E: days with a maximum temperature at or below 0 C (32 F) in 79 years, most in 1978 with 88.
19 fixed thresholds have at least one qualifying day at Yankton 2 E.

Days at or above 30 C (86 F)

79 years with a qualifying day

Days per year at Yankton 2 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 88 in 1988.

Days at or above 30 C (86 F) per year at Yankton 2 E
Year	Days	Decade average
1948	55	57
1949	59	57
1950	30	54.8
1951	23	54.8
1952	56	54.8
1953	57	54.8
1954	52	54.8
1955	79	54.8
1956	84	54.8
1957	47	54.8
1958	58	54.8
1959	62	54.8
1960	45	46.6
1961	44	46.6
1962	28	46.6
1963	63	46.6
1964	56	46.6
1965	40	46.6
1966	50	46.6
1967	43	46.6
1968	51	46.6
1969	46	46.6
1970	69	56.3
1971	54	56.3
1972	52	56.3
1973	55	56.3
1974	54	56.3
1975	63	56.3
1976	67	56.3
1977	44	56.3
1978	58	56.3
1979	47	56.3
1980	72	63.9
1981	57	63.9
1982	50	63.9
1983	74	63.9
1984	40	63.9
1985	53	63.9
1986	54	63.9
1987	77	63.9
1988	88	63.9
1989	74	63.9
1990	71	53
1991	73	53
1992	22	53
1993	25	53
1994	56	53
1995	61	53
1996	40	53
1997	57	53
1998	70	53
1999	55	53
2000	60	62.7
2001	73	62.7
2002	85	62.7
2003	57	62.7
2004	39	62.7
2005	76	62.7
2006	71	62.7
2007	69	62.7
2008	62	62.7
2009	35	62.7
2010	62	55.7
2011	58	55.7
2012	83	55.7
2013	56	55.7
2014	33	55.7
2015	52	55.7
2016	58	55.7
2017	58	55.7
2018	53	55.7
2019	44	55.7
2020	71	62.7
2021	68	62.7
2022	74	62.7
2023	58	62.7
2024	41	62.7
2025	56	62.7
2026	71	62.7

For each year, a bar from the first to the last day at Yankton 2 E meeting 30 C (86 F).

First to last qualifying date each year at Yankton 2 E
Year	First date	Last date
1948	1948-05-14	1948-09-20
1949	1949-04-26	1949-09-17
1950	1950-05-23	1950-10-31
1951	1951-06-26	1951-10-02
1952	1952-04-29	1952-10-01
1953	1953-05-26	1953-10-03
1954	1954-04-15	1954-10-09
1955	1955-04-20	1955-10-27
1956	1956-05-19	1956-10-13
1957	1957-06-05	1957-10-01
1958	1958-05-11	1958-10-20
1959	1959-05-02	1959-09-09
1960	1960-04-22	1960-09-21
1961	1961-06-01	1961-10-17
1962	1962-04-25	1962-09-08
1963	1963-04-02	1963-10-07
1964	1964-04-17	1964-09-10
1965	1965-04-30	1965-08-26
1966	1966-05-05	1966-10-08
1967	1967-06-07	1967-10-04
1968	1968-03-31	1968-08-24
1969	1969-05-16	1969-09-15
1970	1970-05-08	1970-09-21
1971	1971-05-15	1971-09-14
1972	1972-05-17	1972-09-20
1973	1973-05-21	1973-09-02
1974	1974-05-21	1974-10-11
1975	1975-05-18	1975-10-13
1976	1976-05-20	1976-10-01
1977	1977-04-10	1977-09-09
1978	1978-03-31	1978-09-27
1979	1979-05-29	1979-09-18
1980	1980-04-21	1980-10-10
1981	1981-04-03	1981-09-24
1982	1982-06-07	1982-09-29
1983	1983-05-28	1983-10-28
1984	1984-05-17	1984-09-22
1985	1985-04-12	1985-09-20
1986	1986-03-30	1986-09-04
1987	1987-04-18	1987-09-27
1988	1988-04-08	1988-09-26
1989	1989-04-21	1989-10-25
1990	1990-04-23	1990-10-06
1991	1991-04-06	1991-10-23
1992	1992-05-01	1992-10-03
1993	1993-06-08	1993-09-13
1994	1994-04-19	1994-09-20
1995	1995-06-07	1995-10-13
1996	1996-05-18	1996-10-15
1997	1997-05-11	1997-10-03
1998	1998-05-05	1998-09-30
1999	1999-05-29	1999-10-28
2000	2000-05-05	2000-10-01
2001	2001-04-27	2001-10-03
2002	2002-04-16	2002-10-01
2003	2003-04-14	2003-10-20
2004	2004-04-19	2004-09-20
2005	2005-05-22	2005-10-19
2006	2006-04-14	2006-10-08
2007	2007-04-30	2007-10-07
2008	2008-06-02	2008-09-27
2009	2009-04-24	2009-09-19
2010	2010-05-23	2010-10-09
2011	2011-05-09	2011-10-06
2012	2012-03-19	2012-09-17
2013	2013-04-29	2013-09-27
2014	2014-05-28	2014-09-21
2015	2015-05-04	2015-10-12
2016	2016-05-07	2016-09-24
2017	2017-05-08	2017-09-23
2018	2018-05-01	2018-10-04
2019	2019-05-17	2019-10-01
2020	2020-05-02	2020-10-07
2021	2021-04-06	2021-10-09
2022	2022-04-23	2022-10-24
2023	2023-04-12	2023-10-03
2024	2024-04-14	2024-09-30
2025	2025-03-29	2025-10-05
2026	2026-03-22	2026-10-10

Every Fixed Threshold

Fixed thresholds at Yankton 2 E
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	79	88	1988	71
35 C (95 F): Days	79	36	1955	11
40 C (104 F): Days	19	6	1988	1
90 F (32.2 C): Days	79	63	2002	40
100 F (37.8 C): Days	57	18	2012	2
110 F (43.3 C): Days	1	1	1988	1
0 C (32 F): Ice days (max	79	88	1978	23
0 C (32 F): Frost days (min	72	185	2013	95
-10 C (14 F): Days with min	72	98	1955	28
-20 C (-4 F): Days with min	72	50	1978	7
-30 C (-22 F): Days with min	20	5	1974	3
20 C (68 F): Tropical nights (min	70	32	2020	26
25 C (77 F): Days with min	22	5	1988	1
10 mm (0.39 in): Days with 10 mm or more rain	78	31	1995	14
25 mm (0.98 in): Days with 25 mm or more rain	78	12	1982	2
50 mm (1.97 in): Days with 50 mm or more rain	51	6	2018	2
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1957	1
10 cm (3.9 in): Days with 10 cm or more snowfall	63	8	2023	3
25 cm (9.8 in): Days with 25 cm or more snowfall	13	2	2017	1

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 Yankton 2 E 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).

Yankton 2 E Threshold Days by Year

Key Facts for Yankton 2 E Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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