Charleston - Yeager AP Threshold Days by Year (USW00013866)

17 fixed thresholds counted per year at Charleston - Yeager AP (USW00013866): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Charleston - Yeager AP Thresholds

Charleston - Yeager AP: days with 10 mm (0.39 in) or more of precipitation in 79 years, most in 2018 with 57.
Charleston - Yeager AP: days with 25 mm (0.98 in) or more of precipitation in 79 years, most in 2018 with 16.
Charleston - Yeager AP: days with a maximum temperature at or above 30 C (86 F) in 78 years, most in 2007 with 94.
Charleston - Yeager AP: days with a maximum temperature at or above 90 F (32.2 C) in 78 years, most in 2024 with 55.
17 fixed thresholds have at least one qualifying day at Charleston - Yeager AP.

Days at or above 30 C (86 F)

78 years with a qualifying day

Days per year at Charleston - Yeager AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 94 in 2007.

Days at or above 30 C (86 F) per year at Charleston - Yeager AP
Year	Days	Decade average
1949	76	76
1950	27	64.2
1951	74	64.2
1952	77	64.2
1953	86	64.2
1954	66	64.2
1955	69	64.2
1956	47	64.2
1957	72	64.2
1958	36	64.2
1959	88	64.2
1960	49	48.4
1961	41	48.4
1962	58	48.4
1963	31	48.4
1964	72	48.4
1965	52	48.4
1966	64	48.4
1967	22	48.4
1968	46	48.4
1969	49	48.4
1970	78	45.9
1971	38	45.9
1972	28	45.9
1973	52	45.9
1974	40	45.9
1975	47	45.9
1976	42	45.9
1977	52	45.9
1978	46	45.9
1979	36	45.9
1980	58	60
1981	55	60
1982	42	60
1983	78	60
1984	68	60
1985	68	60
1986	55	60
1987	72	60
1988	65	60
1989	39	60
1990	60	54.3
1991	90	54.3
1992	34	54.3
1993	72	54.3
1994	60	54.3
1995	56	54.3
1996	27	54.3
1997	28	54.3
1998	47	54.3
1999	69	54.3
2000	24	49
2001	41	49
2002	67	49
2003	23	49
2004	37	49
2005	70	49
2006	56	49
2007	94	49
2008	53	49
2009	25	49
2010	85	70.7
2011	74	70.7
2012	81	70.7
2013	48	70.7
2014	46	70.7
2015	67	70.7
2016	80	70.7
2017	54	70.7
2018	81	70.7
2019	91	70.7
2020	65	66
2021	60	66
2022	56	66
2023	47	66
2024	94	66
2025	76	66
2026	64	66

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

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

Every Fixed Threshold

Fixed thresholds at Charleston - Yeager AP
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	78	94	2007	64
35 C (95 F): Days	47	23	1988	3
40 C (104 F): Days	2	1	1988	1
90 F (32.2 C): Days	78	55	2024	24
100 F (37.8 C): Days	7	6	1988	2
0 C (32 F): Ice days (max	78	41	2010	19
0 C (32 F): Frost days (min	78	122	1976	59
-10 C (14 F): Days with min	78	38	1977	16
-20 C (-4 F): Days with min	17	5	1963	1
20 C (68 F): Tropical nights (min	78	46	2005	53
25 C (77 F): Days with min	5	2	1992	2
10 mm (0.39 in): Days with 10 mm or more rain	79	57	2018	28
25 mm (0.98 in): Days with 25 mm or more rain	79	16	2018	8
50 mm (1.97 in): Days with 50 mm or more rain	51	5	2003	2
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1958	1
10 cm (3.9 in): Days with 10 cm or more snowfall	52	8	1996	3
25 cm (9.8 in): Days with 25 cm or more snowfall	14	2	1954	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

Data for Charleston - Yeager AP 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).

Charleston - Yeager AP Threshold Days by Year (USW00013866)

Key Facts for Charleston - Yeager AP Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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