Red Oak Threshold Days by Year (USC00136940)

18 fixed thresholds counted per year at Red Oak (USC00136940): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Red Oak Thresholds

Red Oak: days with 10 mm (0.39 in) or more of precipitation in 105 years, most in 1944 with 42.
Red Oak: days with 25 mm (0.98 in) or more of precipitation in 105 years, most in 2015 with 18.
Red Oak: nights with a minimum temperature at or below 0 C (32 F) in 93 years, most in 2022 with 171.
Red Oak: nights with a minimum temperature at or below -10 C (14 F) in 93 years, most in 1978 with 73.
18 fixed thresholds have at least one qualifying day at Red Oak.

Days at or above 30 C (86 F)

89 years with a qualifying day

Days per year at Red Oak with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 98 in 1988.

Days at or above 30 C (86 F) per year at Red Oak
Year	Days	Decade average
1899	70	70
1900	85	42.7
1901	69	42.7
1902	12	42.7
1903	24	42.7
1904	11	42.7
1905	55	42.7
1939	83	83
1940	51	55
1941	65	55
1942	50	55
1943	61	55
1944	52	55
1945	36	55
1946	51	55
1947	63	55
1948	70	55
1949	51	55
1950	20	65.7
1951	43	65.7
1952	75	65.7
1953	79	65.7
1954	82	65.7
1955	88	65.7
1956	93	65.7
1957	54	65.7
1958	53	65.7
1959	70	65.7
1960	52	62.2
1961	58	62.2
1962	67	62.2
1963	78	62.2
1964	69	62.2
1965	55	62.2
1966	58	62.2
1967	52	62.2
1968	74	62.2
1969	59	62.2
1970	80	73.8
1971	71	73.8
1972	71	73.8
1973	82	73.8
1974	71	73.8
1975	81	73.8
1976	79	73.8
1977	65	73.8
1978	69	73.8
1979	69	73.8
1980	89	74.7
1981	56	74.7
1983	85	74.7
1984	70	74.7
1985	66	74.7
1986	62	74.7
1987	79	74.7
1988	98	74.7
1989	67	74.7
1990	56	50.3
1991	64	50.3
1996	36	50.3
1997	51	50.3
1998	52	50.3
1999	43	50.3
2000	58	56.3
2001	65	56.3
2002	74	56.3
2003	68	56.3
2004	31	56.3
2005	74	56.3
2006	60	56.3
2007	70	56.3
2008	39	56.3
2009	24	56.3
2010	45	53.6
2011	57	53.6
2012	84	53.6
2013	52	53.6
2014	29	53.6
2015	41	53.6
2016	57	53.6
2017	56	53.6
2018	61	53.6
2020	55	64
2021	67	64
2022	68	64
2023	61	64
2024	57	64
2025	69	64
2026	71	64

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

First to last qualifying date each year at Red Oak
Year	First date	Last date
1899	1899-05-15	1899-10-22
1900	1900-04-28	1900-10-04
1901	1901-04-26	1901-09-07
1902	1902-05-12	1902-08-13
1903	1903-06-29	1903-08-24
1904	1904-07-15	1904-09-28
1905	1905-05-21	1905-10-04
1939	1939-05-16	1939-10-07
1940	1940-04-14	1940-10-25
1941	1941-05-14	1941-09-21
1942	1942-05-26	1942-10-02
1943	1943-05-29	1943-09-05
1944	1944-05-14	1944-09-17
1945	1945-05-20	1945-09-23
1946	1946-03-31	1946-09-26
1947	1947-05-14	1947-10-21
1948	1948-04-18	1948-09-20
1949	1949-04-25	1949-10-08
1950	1950-04-22	1950-09-19
1951	1951-04-28	1951-10-01
1952	1952-04-28	1952-09-30
1953	1953-05-24	1953-10-02
1954	1954-04-06	1954-10-03
1955	1955-04-18	1955-09-18
1956	1956-04-01	1956-10-12
1957	1957-06-04	1957-09-01
1958	1958-04-17	1958-09-24
1959	1959-05-01	1959-09-20
1960	1960-04-22	1960-09-07
1961	1961-04-20	1961-09-10
1962	1962-04-21	1962-09-15
1963	1963-05-07	1963-10-14
1964	1964-04-16	1964-09-09
1965	1965-04-22	1965-09-09
1966	1966-05-05	1966-10-14
1967	1967-04-16	1967-09-25
1968	1968-03-30	1968-10-15
1969	1969-05-26	1969-10-04
1970	1970-04-28	1970-09-30
1971	1971-06-03	1971-10-01
1972	1972-04-06	1972-09-24
1973	1973-05-18	1973-10-14
1974	1974-05-13	1974-10-10
1975	1975-04-17	1975-10-13
1976	1976-04-14	1976-10-03
1977	1977-04-09	1977-09-08
1978	1978-05-19	1978-10-21
1979	1979-05-17	1979-09-29
1980	1980-04-20	1980-10-09
1981	1981-04-02	1981-09-30
1983	1983-05-24	1983-10-02
1984	1984-05-17	1984-09-21
1985	1985-04-18	1985-09-19
1986	1986-03-28	1986-09-27
1987	1987-04-19	1987-09-26
1988	1988-03-22	1988-09-22
1989	1989-04-21	1989-10-13
1990	1990-05-07	1990-10-05
1991	1991-04-06	1991-09-29
1996	1996-04-11	1996-09-05
1997	1997-05-16	1997-10-07
1998	1998-05-19	1998-09-30
1999	1999-06-05	1999-10-13
2000	2000-04-06	2000-10-02
2001	2001-04-09	2001-09-06
2002	2002-04-16	2002-10-02
2003	2003-04-02	2003-10-22
2004	2004-04-17	2004-09-28
2005	2005-05-11	2005-10-15
2006	2006-04-14	2006-10-04
2007	2007-04-30	2007-10-08
2008	2008-05-02	2008-09-02
2009	2009-04-25	2009-08-15
2010	2010-05-23	2010-10-09
2011	2011-05-10	2011-10-05
2012	2012-04-01	2012-09-12
2013	2013-05-15	2013-09-28
2014	2014-05-08	2014-09-05
2015	2015-03-17	2015-10-12
2016	2016-05-30	2016-10-18
2017	2017-05-09	2017-10-03
2018	2018-05-24	2018-10-04
2020	2020-04-08	2020-10-10
2021	2021-04-27	2021-09-29
2022	2022-04-13	2022-09-25
2023	2023-04-05	2023-10-03
2024	2024-04-14	2024-10-13
2025	2025-05-11	2025-10-06
2026	2026-03-21	2026-09-20

Every Fixed Threshold

Fixed thresholds at Red Oak
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	89	98	1988	71
35 C (95 F): Days	84	35	1955	8
40 C (104 F): Days	11	7	1988	7
90 F (32.2 C): Days	88	66	1983	26
100 F (37.8 C): Days	33	19	1988	2
0 C (32 F): Ice days (max	89	71	1978	22
0 C (32 F): Frost days (min	93	171	2022	79
-10 C (14 F): Days with min	93	73	1978	28
-20 C (-4 F): Days with min	91	24	1940	6
-30 C (-22 F): Days with min	20	4	1996	2
20 C (68 F): Tropical nights (min	93	51	1954	41
25 C (77 F): Days with min	26	8	1901	1
10 mm (0.39 in): Days with 10 mm or more rain	105	42	1944	33
25 mm (0.98 in): Days with 25 mm or more rain	105	18	2015	10
50 mm (1.97 in): Days with 50 mm or more rain	86	7	2014	3
100 mm (3.94 in): Days with 100 mm or more rain	18	4	2007	1
10 cm (3.9 in): Days with 10 cm or more snowfall	71	8	1975	2
25 cm (9.8 in): Days with 25 cm or more snowfall	10	2	1942	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

Data for Red Oak 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).

Red Oak Threshold Days by Year (USC00136940)

Key Facts for Red Oak Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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