Cape Hatteras - Billy Mitchell Threshold Days by Year (USW00093729)

15 fixed thresholds counted per year at Cape Hatteras - Billy Mitchell (USW00093729): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cape Hatteras - Billy Mitchell Thresholds

Cape Hatteras - Billy Mitchell: days with a maximum temperature at or above 30 C (86 F) in 69 years, most in 2011 with 87.
Cape Hatteras - Billy Mitchell: nights with a minimum temperature at or below 0 C (32 F) in 69 years, most in 1981 with 59.
Cape Hatteras - Billy Mitchell: nights with a minimum temperature at or above 20 C (68 F) in 69 years, most in 2018 with 148.
Cape Hatteras - Billy Mitchell: nights with a minimum temperature at or above 25 C (77 F) in 69 years, most in 2020 with 58.
15 fixed thresholds have at least one qualifying day at Cape Hatteras - Billy Mitchell.

Days at or above 30 C (86 F)

69 years with a qualifying day

Days per year at Cape Hatteras - Billy Mitchell with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 87 in 2011.

Days at or above 30 C (86 F) per year at Cape Hatteras - Billy Mitchell
Year	Days	Decade average
1958	47	50
1959	53	50
1960	33	31.7
1961	42	31.7
1962	30	31.7
1963	25	31.7
1964	28	31.7
1965	27	31.7
1966	38	31.7
1967	18	31.7
1968	40	31.7
1969	36	31.7
1970	34	34
1971	31	34
1972	25	34
1973	31	34
1974	14	34
1975	47	34
1976	15	34
1977	56	34
1978	52	34
1979	35	34
1980	49	43.9
1981	34	43.9
1982	32	43.9
1983	49	43.9
1984	28	43.9
1985	45	43.9
1986	49	43.9
1987	57	43.9
1988	50	43.9
1989	46	43.9
1990	58	46.8
1991	73	46.8
1992	51	46.8
1993	67	46.8
1994	62	46.8
1995	45	46.8
1996	13	46.8
1997	16	46.8
1998	43	46.8
1999	40	46.8
2000	23	35
2001	26	35
2002	38	35
2003	11	35
2004	35	35
2005	54	35
2006	39	35
2007	48	35
2008	47	35
2009	29	35
2010	39	59.8
2011	87	59.8
2012	59	59.8
2013	55	59.8
2014	38	59.8
2015	48	59.8
2016	69	59.8
2017	47	59.8
2018	85	59.8
2019	71	59.8
2020	73	56.6
2021	63	56.6
2022	62	56.6
2023	41	56.6
2024	49	56.6
2025	44	56.6
2026	64	56.6

For each year, a bar from the first to the last day at Cape Hatteras - Billy Mitchell meeting 30 C (86 F).

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

Every Fixed Threshold

Fixed thresholds at Cape Hatteras - Billy Mitchell
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	69	87	2011	64
35 C (95 F): Days	5	1	1969	1
90 F (32.2 C): Days	60	42	2020	4
0 C (32 F): Ice days (max	31	5	1981	2
0 C (32 F): Frost days (min	69	59	1981	21
-10 C (14 F): Days with min	8	2	1970	2
20 C (68 F): Tropical nights (min	69	148	2018	124
25 C (77 F): Days with min	69	58	2020	40
10 mm (0.39 in): Days with 10 mm or more rain	69	68	1989	32
25 mm (0.98 in): Days with 25 mm or more rain	69	32	1989	13
50 mm (1.97 in): Days with 50 mm or more rain	67	14	1962	1
100 mm (3.94 in): Days with 100 mm or more rain	37	5	2018	1
200 mm (7.87 in): Days with 200 mm or more rain	2	1	1994	1
10 cm (3.9 in): Days with 10 cm or more snowfall	9	2	1989	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	2003	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

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Data for Cape Hatteras - Billy Mitchell 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).

Cape Hatteras - Billy Mitchell Threshold Days by Year (USW00093729)

Key Facts for Cape Hatteras - Billy Mitchell Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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