Harrison Threshold Days by Year (USC00033164)

18 fixed thresholds counted per year at Harrison (USC00033164): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Harrison Thresholds

Harrison: days with 10 mm (0.39 in) or more of precipitation in 82 years, most in 2019 with 58.
Harrison: days with 25 mm (0.98 in) or more of precipitation in 82 years, most in 2008 with 25.
Harrison: days with 50 mm (1.97 in) or more of precipitation in 77 years, most in 2008 with 9.
Harrison: days with a maximum temperature at or above 30 C (86 F) in 76 years, most in 1901 with 128.
18 fixed thresholds have at least one qualifying day at Harrison.

Days at or above 30 C (86 F)

76 years with a qualifying day

Days per year at Harrison with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 128 in 1901.

Days at or above 30 C (86 F) per year at Harrison
Year	Days	Decade average
1900	91	85.3
1901	128	85.3
1902	101	85.3
1903	36	85.3
1904	74	85.3
1905	75	85.3
1906	87	85.3
1907	88	85.3
1908	64	85.3
1909	109	85.3
1910	65	78.5
1911	90	78.5
1912	76	78.5
1913	105	78.5
1914	96	78.5
1915	11	78.5
1916	83	78.5
1917	74	78.5
1918	99	78.5
1919	86	78.5
1926	114	110.5
1928	107	110.5
1932	89	99.9
1933	102	99.9
1934	97	99.9
1935	75	99.9
1936	115	99.9
1937	101	99.9
1938	109	99.9
1939	111	99.9
1940	81	85.7
1941	105	85.7
1942	86	85.7
1943	96	85.7
1944	90	85.7
1945	66	85.7
1946	85	85.7
1947	89	85.7
1948	76	85.7
1949	83	85.7
1950	39	93.4
1951	79	93.4
1952	112	93.4
1953	120	93.4
1954	118	93.4
1955	93	93.4
1956	120	93.4
1957	75	93.4
1958	89	93.4
1959	89	93.4
1960	86	81.5
1961	69	81.5
1962	100	81.5
1963	106	81.5
1964	99	81.5
1965	74	81.5
1966	74	81.5
1967	62	81.5
1968	70	81.5
1969	75	81.5
1970	83	74.8
1971	75	74.8
1972	76	74.8
1973	71	74.8
1974	69	74.8
2016	85	81.8
2017	67	81.8
2018	95	81.8
2019	80	81.8
2020	70	74.7
2021	72	74.7
2022	80	74.7
2023	76	74.7
2024	79	74.7
2025	72	74.7
2026	74	74.7

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

First to last qualifying date each year at Harrison
Year	First date	Last date
1900	1900-05-31	1900-10-05
1901	1901-04-26	1901-10-23
1902	1902-04-20	1902-10-16
1903	1903-03-31	1903-10-20
1904	1904-04-30	1904-09-30
1905	1905-04-09	1905-09-28
1906	1906-04-10	1906-10-04
1907	1907-03-19	1907-10-10
1908	1908-05-19	1908-10-15
1909	1909-04-17	1909-10-30
1910	1910-04-29	1910-10-25
1911	1911-03-09	1911-10-02
1912	1912-05-19	1912-10-06
1913	1913-04-17	1913-09-11
1914	1914-04-16	1914-10-08
1915	1915-04-06	1915-09-04
1916	1916-06-20	1916-10-08
1917	1917-04-18	1917-10-16
1918	1918-04-02	1918-10-08
1919	1919-04-19	1919-10-04
1926	1926-04-17	1926-10-19
1928	1928-04-01	1928-10-16
1932	1932-04-20	1932-10-15
1933	1933-04-09	1933-09-30
1934	1934-04-03	1934-09-20
1935	1935-05-30	1935-09-24
1936	1936-04-13	1936-09-23
1937	1937-04-17	1937-10-06
1938	1938-04-19	1938-10-15
1939	1939-04-25	1939-10-23
1940	1940-03-31	1940-09-20
1941	1941-04-11	1941-10-09
1942	1942-04-04	1942-09-18
1943	1943-04-10	1943-09-27
1944	1944-05-13	1944-10-25
1945	1945-05-14	1945-09-22
1946	1946-03-31	1946-09-27
1947	1947-05-04	1947-10-13
1948	1948-04-07	1948-10-20
1949	1949-04-24	1949-09-12
1950	1950-06-10	1950-10-30
1951	1951-05-19	1951-10-05
1952	1952-04-29	1952-10-26
1953	1953-04-22	1953-10-17
1954	1954-04-07	1954-10-09
1955	1955-04-16	1955-09-29
1956	1956-03-06	1956-10-12
1957	1957-05-15	1957-09-20
1958	1958-05-14	1958-09-26
1959	1959-04-05	1959-09-24
1960	1960-04-06	1960-10-03
1961	1961-05-29	1961-10-11
1962	1962-04-29	1962-10-13
1963	1963-04-17	1963-10-20
1964	1964-04-23	1964-10-17
1965	1965-04-05	1965-09-19
1966	1966-05-06	1966-10-09
1967	1967-03-11	1967-10-05
1968	1968-05-01	1968-09-14
1969	1969-05-20	1969-10-04
1970	1970-04-28	1970-09-20
1971	1971-04-12	1971-10-02
1972	1972-04-11	1972-09-20
1973	1973-05-10	1973-09-09
1974	1974-03-06	1974-09-01
2016	2016-05-11	2016-10-19
2017	2017-03-20	2017-10-14
2018	2018-05-07	2018-10-05
2019	2019-05-16	2019-10-02
2020	2020-03-26	2020-09-30
2021	2021-06-09	2021-10-09
2022	2022-05-10	2022-09-24
2023	2023-06-02	2023-10-01
2024	2024-05-26	2024-10-23
2025	2025-05-16	2025-09-19
2026	2026-03-19	2026-08-31

Every Fixed Threshold

Fixed thresholds at Harrison
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	76	128	1901	74
35 C (95 F): Days	75	78	1936	19
40 C (104 F): Days	25	32	1936	2
90 F (32.2 C): Days	76	106	1954	49
100 F (37.8 C): Days	42	53	1936	6
110 F (43.3 C): Days	4	4	1936	1
0 C (32 F): Ice days (max	76	20	1905	7
0 C (32 F): Frost days (min	76	139	1912	38
-10 C (14 F): Days with min	75	30	1912	10
-20 C (-4 F): Days with min	28	6	1905	2
20 C (68 F): Tropical nights (min	76	77	2016	74
25 C (77 F): Days with min	24	8	2022	6
10 mm (0.39 in): Days with 10 mm or more rain	82	58	2019	22
25 mm (0.98 in): Days with 25 mm or more rain	82	25	2008	8
50 mm (1.97 in): Days with 50 mm or more rain	77	9	2008	2
100 mm (3.94 in): Days with 100 mm or more rain	20	2	2008	1
10 cm (3.9 in): Days with 10 cm or more snowfall	32	3	1960	1
25 cm (9.8 in): Days with 25 cm or more snowfall	5	1	1955	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1900.

Download the Data

Data for Harrison 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).

Harrison Threshold Days by Year (USC00033164)

Key Facts for Harrison Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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