Harrisburg Capital City AP Threshold Days by Year (USW00014751)

19 fixed thresholds counted per year at Harrisburg Capital City AP (USW00014751): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Harrisburg Capital City AP Thresholds

Harrisburg Capital City AP: days with a maximum temperature at or above 30 C (86 F) in 78 years, most in 2016 with 81.
Harrisburg Capital City AP: days with a maximum temperature at or above 90 F (32.2 C) in 78 years, most in 1966 with 60.
Harrisburg Capital City AP: days with a maximum temperature at or below 0 C (32 F) in 78 years, most in 1978 with 44.
Harrisburg Capital City AP: nights with a minimum temperature at or below 0 C (32 F) in 78 years, most in 1962 with 128.
19 fixed thresholds have at least one qualifying day at Harrisburg Capital City AP.

Days at or above 30 C (86 F)

78 years with a qualifying day

Days per year at Harrisburg Capital City AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 81 in 2016.

Days at or above 30 C (86 F) per year at Harrisburg Capital City AP
Year	Days	Decade average
1939	73	73
1940	46	54.2
1941	77	54.2
1942	50	54.2
1943	69	54.2
1944	68	54.2
1945	49	54.2
1946	41	54.2
1947	46	54.2
1948	38	54.2
1949	58	54.2
1950	29	48.2
1951	51	48.2
1952	54	48.2
1953	54	48.2
1954	42	48.2
1955	53	48.2
1956	36	48.2
1957	54	48.2
1958	36	48.2
1959	73	48.2
1960	41	51.6
1961	50	51.6
1962	51	51.6
1963	47	51.6
1964	59	51.6
1965	66	51.6
1966	77	51.6
1967	29	51.6
1968	51	51.6
1969	45	51.6
1970	58	41.6
1971	41	41.6
1972	40	41.6
1973	45	41.6
1974	42	41.6
1975	41	41.6
1976	31	41.6
1977	40	41.6
1978	47	41.6
1979	31	41.6
1980	61	42.6
1981	34	42.6
1982	19	42.6
1983	54	42.6
1984	35	42.6
1985	44	42.6
1986	40	42.6
1987	51	42.6
1988	59	42.6
1989	29	42.6
1990	47	47
2001	44	43.2
2002	57	43.2
2003	21	43.2
2004	22	43.2
2005	59	43.2
2006	50	43.2
2007	62	43.2
2008	49	43.2
2009	25	43.2
2010	67	56.9
2011	45	56.9
2012	54	56.9
2013	41	56.9
2014	22	56.9
2015	56	56.9
2016	81	56.9
2017	57	56.9
2018	73	56.9
2019	73	56.9
2020	71	64.4
2021	72	64.4
2022	69	64.4
2023	71	64.4
2024	75	64.4
2025	50	64.4
2026	43	64.4

For each year, a bar from the first to the last day at Harrisburg Capital City AP meeting 30 C (86 F).

First to last qualifying date each year at Harrisburg Capital City AP
Year	First date	Last date
1939	1939-04-25	1939-10-10
1940	1940-05-13	1940-09-21
1941	1941-04-14	1941-10-07
1942	1942-04-25	1942-09-17
1943	1943-05-06	1943-09-06
1944	1944-05-04	1944-09-03
1945	1945-03-29	1945-09-29
1946	1946-04-23	1946-09-27
1947	1947-05-19	1947-10-23
1948	1948-05-10	1948-09-18
1949	1949-05-04	1949-10-11
1950	1950-06-07	1950-09-01
1951	1951-05-16	1951-10-05
1952	1952-06-06	1952-09-14
1953	1953-05-10	1953-09-30
1954	1954-05-02	1954-10-12
1955	1955-05-04	1955-08-30
1956	1956-04-28	1956-09-01
1957	1957-04-27	1957-09-22
1958	1958-05-31	1958-09-26
1959	1959-05-06	1959-10-06
1960	1960-04-14	1960-09-09
1961	1961-05-09	1961-09-25
1962	1962-04-26	1962-09-13
1963	1963-04-02	1963-10-07
1964	1964-04-17	1964-09-23
1965	1965-05-03	1965-09-23
1966	1966-05-06	1966-09-11
1967	1967-06-07	1967-09-19
1968	1968-06-06	1968-09-24
1969	1969-04-27	1969-09-17
1970	1970-05-09	1970-09-26
1971	1971-05-19	1971-09-10
1972	1972-05-24	1972-09-26
1973	1973-04-22	1973-09-05
1974	1974-04-29	1974-09-13
1975	1975-05-20	1975-08-27
1976	1976-04-17	1976-09-14
1977	1977-04-12	1977-09-05
1978	1978-05-20	1978-09-18
1979	1979-05-09	1979-09-06
1980	1980-05-05	1980-09-22
1981	1981-05-22	1981-09-14
1982	1982-07-07	1982-09-02
1983	1983-06-12	1983-09-20
1984	1984-05-22	1984-09-02
1985	1985-04-19	1985-09-20
1986	1986-05-06	1986-09-30
1987	1987-05-10	1987-08-21
1988	1988-05-23	1988-09-23
1989	1989-06-01	1989-09-10
1990	1990-04-26	1990-09-06
2001	2001-04-23	2001-09-09
2002	2002-04-16	2002-09-13
2003	2003-06-23	2003-08-25
2004	2004-04-19	2004-08-29
2005	2005-05-11	2005-09-23
2006	2006-05-29	2006-08-29
2007	2007-05-15	2007-10-09
2008	2008-06-07	2008-09-14
2009	2009-04-25	2009-08-26
2010	2010-04-06	2010-09-25
2011	2011-05-26	2011-08-26
2012	2012-04-16	2012-09-07
2013	2013-04-10	2013-10-06
2014	2014-05-27	2014-09-06
2015	2015-05-11	2015-09-19
2016	2016-05-25	2016-10-19
2017	2017-04-11	2017-09-27
2018	2018-04-13	2018-09-19
2019	2019-05-19	2019-10-02
2020	2020-05-15	2020-09-23
2021	2021-04-28	2021-10-15
2022	2022-05-21	2022-09-04
2023	2023-04-12	2023-10-03
2024	2024-04-29	2024-09-20
2025	2025-05-02	2025-09-19
2026	2026-04-14	2026-10-02

Every Fixed Threshold

Fixed thresholds at Harrisburg Capital City AP
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	78	81	2016	43
35 C (95 F): Days	64	28	1966	5
40 C (104 F): Days	2	3	1966	1
90 F (32.2 C): Days	78	60	1966	16
100 F (37.8 C): Days	20	6	1966	2
0 C (32 F): Ice days (max	78	44	1978	20
0 C (32 F): Frost days (min	78	128	1962	70
-10 C (14 F): Days with min	74	34	1963	16
-20 C (-4 F): Days with min	9	2	1981	1
20 C (68 F): Tropical nights (min	78	78	2018	44
25 C (77 F): Days with min	18	4	2016	2
10 mm (0.39 in): Days with 10 mm or more rain	78	56	2018	27
25 mm (0.98 in): Days with 25 mm or more rain	78	18	2004	6
50 mm (1.97 in): Days with 50 mm or more rain	55	6	2011	1
100 mm (3.94 in): Days with 100 mm or more rain	7	2	1972	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1972	1
10 cm (3.9 in): Days with 10 cm or more snowfall	49	8	1961	1
25 cm (9.8 in): Days with 25 cm or more snowfall	15	2	1964	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1945	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

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Data for Harrisburg Capital City 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).

Harrisburg Capital City AP Threshold Days by Year (USW00014751)

Key Facts for Harrisburg Capital City AP Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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