John H Kerr Dam Threshold Days by Year (USC00444414)

17 fixed thresholds counted per year at John H Kerr Dam (USC00444414): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for John H Kerr Dam Thresholds

John H Kerr Dam: days with a maximum temperature at or above 30 C (86 F) in 72 years, most in 2019 with 127.
John H Kerr Dam: days with a maximum temperature at or above 90 F (32.2 C) in 72 years, most in 2010 with 105.
John H Kerr Dam: days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 1975 with 54.
John H Kerr Dam: days with 25 mm (0.98 in) or more of precipitation in 72 years, most in 1989 with 23.
17 fixed thresholds have at least one qualifying day at John H Kerr Dam.

Days at or above 30 C (86 F)

72 years with a qualifying day

Days per year at John H Kerr Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 127 in 2019.

Days at or above 30 C (86 F) per year at John H Kerr Dam
Year	Days	Decade average
1949	77	77
1950	81	80.9
1952	88	80.9
1953	85	80.9
1954	100	80.9
1955	72	80.9
1956	79	80.9
1957	84	80.9
1958	60	80.9
1959	79	80.9
1960	73	67.2
1961	71	67.2
1962	65	67.2
1963	72	67.2
1964	66	67.2
1965	60	67.2
1966	77	67.2
1967	47	67.2
1968	72	67.2
1969	69	67.2
1970	96	74.3
1971	57	74.3
1972	63	74.3
1973	87	74.3
1974	66	74.3
1975	85	74.3
1976	77	74.3
1978	82	74.3
1979	56	74.3
1980	100	81
1981	67	81
1982	62	81
1983	84	81
1984	75	81
1985	79	81
1986	95	81
1987	90	81
1988	83	81
1989	75	81
1990	82	80.2
1991	98	80.2
1992	60	80.2
1993	92	80.2
1994	64	80.2
1995	80	80.2
1996	76	80.2
1997	70	80.2
1998	106	80.2
1999	74	80.2
2000	83	93.4
2001	78	93.4
2002	102	93.4
2003	56	93.4
2004	97	93.4
2005	107	93.4
2006	89	93.4
2007	120	93.4
2008	104	93.4
2009	98	93.4
2010	125	112.8
2014	84	112.8
2015	110	112.8
2016	108	112.8
2018	123	112.8
2019	127	112.8
2020	90	101.7
2021	104	101.7
2022	102	101.7
2023	97	101.7
2024	104	101.7
2025	84	101.7
2026	131	101.7

For each year, a bar from the first to the last day at John H Kerr Dam meeting 30 C (86 F).

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

Every Fixed Threshold

Fixed thresholds at John H Kerr Dam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	72	127	2019	131
35 C (95 F): Days	69	53	2010	49
40 C (104 F): Days	6	4	1952	3
90 F (32.2 C): Days	72	105	2010	100
100 F (37.8 C): Days	33	12	2010	16
0 C (32 F): Ice days (max	63	13	1963	2
0 C (32 F): Frost days (min	71	122	1969	49
-10 C (14 F): Days with min	58	24	1963	3
-20 C (-4 F): Days with min	1	2	1985	2
20 C (68 F): Tropical nights (min	71	112	2018	91
25 C (77 F): Days with min	44	17	2025	10
10 mm (0.39 in): Days with 10 mm or more rain	72	54	1975	18
25 mm (0.98 in): Days with 25 mm or more rain	72	23	1989	4
50 mm (1.97 in): Days with 50 mm or more rain	60	6	2004	2
100 mm (3.94 in): Days with 100 mm or more rain	8	2	1999	1
10 cm (3.9 in): Days with 10 cm or more snowfall	11	3	1952	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1966	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 John H Kerr Dam 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).

John H Kerr Dam Threshold Days by Year (USC00444414)

Key Facts for John H Kerr Dam Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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