Chapel Hill 2 W Threshold Days by Year (USC00311677)

18 fixed thresholds counted per year at Chapel Hill 2 W (USC00311677): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chapel Hill 2 W Thresholds

Chapel Hill 2 W: nights with a minimum temperature at or below 0 C (32 F) in 115 years, most in 1976 with 112.
Chapel Hill 2 W: nights with a minimum temperature at or above 20 C (68 F) in 115 years, most in 2010 with 83.
Chapel Hill 2 W: days with a maximum temperature at or above 30 C (86 F) in 114 years, most in 1941 with 126.
Chapel Hill 2 W: days with a maximum temperature at or above 90 F (32.2 C) in 114 years, most in 1900 with 93.
18 fixed thresholds have at least one qualifying day at Chapel Hill 2 W.

Days at or above 30 C (86 F)

114 years with a qualifying day

Days per year at Chapel Hill 2 W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 126 in 1941.

Days at or above 30 C (86 F) per year at Chapel Hill 2 W
Year	Days	Decade average
1892	108	101.3
1893	106	101.3
1894	106	101.3
1895	89	101.3
1896	115	101.3
1898	97	101.3
1899	88	101.3
1900	116	96
1901	92	96
1902	97	96
1905	85	96
1909	90	96
1916	53	53
1921	109	98.6
1922	105	98.6
1923	96	98.6
1924	76	98.6
1925	122	98.6
1926	109	98.6
1928	80	98.6
1929	92	98.6
1930	118	108.5
1931	118	108.5
1932	112	108.5
1933	115	108.5
1934	97	108.5
1935	91	108.5
1936	115	108.5
1937	104	108.5
1938	95	108.5
1939	120	108.5
1940	89	103.8
1941	126	103.8
1942	101	103.8
1943	111	103.8
1944	107	103.8
1945	98	103.8
1946	81	103.8
1947	113	103.8
1948	104	103.8
1949	108	103.8
1950	74	89.4
1951	93	89.4
1952	102	89.4
1953	104	89.4
1954	118	89.4
1955	83	89.4
1956	85	89.4
1957	86	89.4
1958	76	89.4
1959	73	89.4
1960	72	70.4
1961	73	70.4
1962	73	70.4
1963	70	70.4
1964	67	70.4
1965	81	70.4
1966	77	70.4
1967	52	70.4
1968	69	70.4
1969	70	70.4
1970	88	71.9
1971	64	71.9
1972	54	71.9
1973	74	71.9
1974	56	71.9
1975	73	71.9
1976	68	71.9
1977	91	71.9
1978	79	71.9
1980	97	85.3
1981	80	85.3
1982	63	85.3
1984	52	85.3
1985	94	85.3
1986	106	85.3
1987	102	85.3
1988	88	85.3
1989	86	85.3
1990	102	79.5
1991	97	79.5
1992	55	79.5
1993	91	79.5
1994	77	79.5
1995	64	79.5
1996	67	79.5
1997	69	79.5
1998	106	79.5
1999	67	79.5
2000	72	80.2
2001	71	80.2
2002	107	80.2
2003	63	80.2
2004	67	80.2
2005	82	80.2
2006	80	80.2
2007	109	80.2
2008	81	80.2
2009	70	80.2
2010	113	88
2011	100	88
2012	76	88
2013	60	88
2014	71	88
2015	90	88
2016	81	88
2019	113	88
2020	76	83.9
2021	82	83.9
2022	87	83.9
2023	72	83.9
2024	74	83.9
2025	77	83.9
2026	119	83.9

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

First to last qualifying date each year at Chapel Hill 2 W
Year	First date	Last date
1892	1892-05-02	1892-10-16
1893	1893-04-08	1893-10-09
1894	1894-03-20	1894-10-03
1895	1895-05-09	1895-09-27
1896	1896-04-12	1896-09-19
1898	1898-04-17	1898-10-04
1899	1899-04-14	1899-09-25
1900	1900-04-30	1900-10-07
1901	1901-05-01	1901-09-16
1902	1902-04-23	1902-09-24
1905	1905-04-30	1905-10-15
1909	1909-04-06	1909-09-23
1916	1916-04-13	1916-10-09
1921	1921-03-21	1921-10-28
1922	1922-04-10	1922-10-29
1923	1923-05-19	1923-09-25
1924	1924-04-25	1924-11-09
1925	1925-03-12	1925-10-17
1926	1926-04-22	1926-10-20
1928	1928-05-03	1928-09-16
1929	1929-03-24	1929-11-03
1930	1930-04-11	1930-10-17
1931	1931-04-10	1931-10-08
1932	1932-05-05	1932-09-23
1933	1933-05-11	1933-10-01
1934	1934-04-03	1934-09-29
1935	1935-03-21	1935-10-23
1936	1936-04-15	1936-10-23
1937	1937-04-18	1937-10-07
1938	1938-04-26	1938-10-20
1939	1939-04-24	1939-10-27
1940	1940-05-06	1940-10-26
1941	1941-04-14	1941-10-23
1942	1942-04-05	1942-09-24
1943	1943-04-27	1943-10-02
1944	1944-04-10	1944-10-07
1945	1945-03-17	1945-09-29
1946	1946-04-03	1946-11-12
1947	1947-04-13	1947-10-23
1948	1948-03-20	1948-09-22
1949	1949-03-27	1949-10-22
1950	1950-04-24	1950-11-01
1951	1951-04-30	1951-10-08
1952	1952-04-20	1952-10-01
1953	1953-05-11	1953-09-22
1954	1954-04-26	1954-10-14
1955	1955-04-19	1955-09-20
1956	1956-05-01	1956-09-24
1957	1957-04-22	1957-09-23
1958	1958-04-20	1958-10-11
1959	1959-05-03	1959-10-06
1960	1960-04-24	1960-09-21
1961	1961-04-25	1961-09-27
1962	1962-05-01	1962-10-12
1963	1963-04-04	1963-09-22
1964	1964-04-20	1964-09-24
1965	1965-04-13	1965-09-24
1966	1966-05-20	1966-09-12
1967	1967-04-03	1967-09-20
1968	1968-03-22	1968-10-04
1969	1969-05-06	1969-09-08
1970	1970-04-22	1970-09-28
1971	1971-05-19	1971-09-17
1972	1972-04-16	1972-09-20
1973	1973-05-12	1973-10-06
1974	1974-04-02	1974-11-03
1975	1975-05-21	1975-10-15
1976	1976-04-17	1976-09-10
1977	1977-04-12	1977-10-03
1978	1978-05-21	1978-09-23
1980	1980-04-24	1980-09-24
1981	1981-04-12	1981-10-07
1982	1982-05-08	1982-09-19
1984	1984-05-20	1984-09-27
1985	1985-03-31	1985-10-17
1986	1986-04-01	1986-10-06
1987	1987-05-01	1987-09-19
1988	1988-05-17	1988-09-25
1989	1989-03-30	1989-10-16
1990	1990-03-13	1990-10-10
1991	1991-04-08	1991-09-20
1992	1992-04-18	1992-09-19
1993	1993-05-12	1993-09-28
1994	1994-04-20	1994-09-17
1995	1995-04-20	1995-09-23
1996	1996-05-05	1996-09-11
1997	1997-05-19	1997-10-08
1998	1998-05-16	1998-10-03
1999	1999-04-05	1999-09-10
2000	2000-05-07	2000-09-25
2001	2001-04-08	2001-10-25
2002	2002-04-16	2002-10-06
2003	2003-05-09	2003-11-07
2004	2004-04-19	2004-09-01
2005	2005-04-20	2005-10-21
2006	2006-04-15	2006-09-25
2007	2007-04-26	2007-10-11
2008	2008-04-19	2008-10-16
2009	2009-04-25	2009-09-29
2010	2010-04-03	2010-10-28
2011	2011-04-25	2011-09-28
2012	2012-05-02	2012-09-09
2013	2013-04-11	2013-10-06
2014	2014-04-03	2014-09-22
2015	2015-05-12	2015-09-20
2016	2016-04-28	2016-10-20
2019	2019-04-25	2019-10-28
2020	2020-03-21	2020-09-12
2021	2021-05-05	2021-09-21
2022	2022-04-27	2022-09-23
2023	2023-03-25	2023-09-13
2024	2024-04-03	2024-09-02
2025	2025-04-05	2025-09-28
2026	2026-03-12	2026-10-15

Every Fixed Threshold

Fixed thresholds at Chapel Hill 2 W
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	114	126	1941	119
35 C (95 F): Days	107	61	1900	34
40 C (104 F): Days	13	7	1902	1
90 F (32.2 C): Days	114	93	1900	72
100 F (37.8 C): Days	55	25	1900	5
0 C (32 F): Ice days (max	86	12	1899	5
0 C (32 F): Frost days (min	115	112	1976	48
-10 C (14 F): Days with min	88	28	1977	4
-20 C (-4 F): Days with min	3	1	1899	1
20 C (68 F): Tropical nights (min	115	83	2010	73
25 C (77 F): Days with min	22	4	2011	1
10 mm (0.39 in): Days with 10 mm or more rain	107	52	1945	21
25 mm (0.98 in): Days with 25 mm or more rain	107	23	1900	8
50 mm (1.97 in): Days with 50 mm or more rain	97	8	1985	2
100 mm (3.94 in): Days with 100 mm or more rain	22	2	1999	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	2025	1
10 cm (3.9 in): Days with 10 cm or more snowfall	17	2	1940	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1940	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1892.

Download the Data

Data for Chapel Hill 2 W 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).

Chapel Hill 2 W Threshold Days by Year (USC00311677)

Key Facts for Chapel Hill 2 W Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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