Circleville Threshold Days by Year (USC00331592)

17 fixed thresholds counted per year at Circleville (USC00331592): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Circleville Thresholds

Circleville: days with a maximum temperature at or above 30 C (86 F) in 122 years, most in 1930 with 107.
Circleville: days with a maximum temperature at or below 0 C (32 F) in 122 years, most in 1978 with 51.
Circleville: nights with a minimum temperature at or below 0 C (32 F) in 122 years, most in 1923 with 141.
Circleville: nights with a minimum temperature at or below -10 C (14 F) in 122 years, most in 1978 with 46.
17 fixed thresholds have at least one qualifying day at Circleville.

Days at or above 30 C (86 F)

122 years with a qualifying day

Days per year at Circleville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 107 in 1930.

Days at or above 30 C (86 F) per year at Circleville
Year	Days	Decade average
1895	93	64
1896	43	64
1897	48	64
1898	60	64
1899	76	64
1900	73	53.1
1901	52	53.1
1902	48	53.1
1903	59	53.1
1904	40	53.1
1905	44	53.1
1906	63	53.1
1907	40	53.1
1908	65	53.1
1909	47	53.1
1910	73	72.9
1911	83	72.9
1912	63	72.9
1913	87	72.9
1914	91	72.9
1915	48	72.9
1916	75	72.9
1917	59	72.9
1918	72	72.9
1919	78	72.9
1920	50	70.9
1921	89	70.9
1922	81	70.9
1923	76	70.9
1924	46	70.9
1925	83	70.9
1926	73	70.9
1927	66	70.9
1928	75	70.9
1929	70	70.9
1930	107	86.7
1931	73	86.7
1932	70	86.7
1933	76	86.7
1934	101	86.7
1935	79	86.7
1936	101	86.7
1942	74	62
1943	59	62
1944	79	62
1945	53	62
1946	45	62
1947	59	62
1948	61	62
1949	66	62
1951	79	73.7
1952	85	73.7
1953	85	73.7
1954	74	73.7
1955	83	73.7
1956	53	73.7
1957	63	73.7
1958	42	73.7
1959	99	73.7
1960	60	55.8
1961	62	55.8
1962	54	55.8
1963	60	55.8
1964	75	55.8
1965	50	55.8
1966	52	55.8
1967	41	55.8
1968	55	55.8
1969	49	55.8
1970	61	47.6
1971	45	47.6
1972	39	47.6
1973	46	47.6
1974	36	47.6
1975	58	47.6
1976	35	47.6
1977	60	47.6
1978	59	47.6
1979	37	47.6
1980	66	49.6
1981	34	49.6
1985	42	49.6
1986	53	49.6
1987	64	49.6
1988	59	49.6
1989	29	49.6
1990	32	43.4
1991	69	43.4
1992	15	43.4
1993	49	43.4
1994	37	43.4
1995	54	43.4
1996	34	43.4
1997	28	43.4
1998	47	43.4
1999	69	43.4
2000	24	39.9
2001	40	39.9
2002	71	39.9
2003	26	39.9
2004	32	39.9
2005	64	39.9
2006	40	39.9
2008	39	39.9
2009	23	39.9
2010	69	55.9
2011	54	55.9
2012	72	55.9
2013	33	55.9
2014	37	55.9
2015	40	55.9
2016	67	55.9
2017	51	55.9
2018	72	55.9
2019	64	55.9
2020	53	49.9
2021	53	49.9
2022	40	49.9
2023	34	49.9
2024	70	49.9
2025	53	49.9
2026	46	49.9

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

First to last qualifying date each year at Circleville
Year	First date	Last date
1895	1895-04-25	1895-09-25
1896	1896-04-12	1896-09-14
1897	1897-06-11	1897-10-16
1898	1898-05-21	1898-10-06
1899	1899-04-29	1899-10-15
1900	1900-05-14	1900-10-05
1901	1901-04-30	1901-09-07
1902	1902-05-03	1902-09-22
1903	1903-05-18	1903-10-03
1904	1904-03-22	1904-10-10
1905	1905-05-04	1905-09-28
1906	1906-04-13	1906-09-20
1907	1907-05-22	1907-09-20
1908	1908-05-16	1908-09-25
1909	1909-05-06	1909-09-23
1910	1910-03-24	1910-10-19
1911	1911-05-11	1911-09-25
1912	1912-05-05	1912-10-11
1913	1913-04-25	1913-10-10
1914	1914-04-19	1914-10-07
1915	1915-04-21	1915-09-17
1916	1916-05-11	1916-10-08
1917	1917-04-20	1917-09-27
1918	1918-05-06	1918-08-29
1919	1919-04-10	1919-10-04
1920	1920-05-23	1920-10-22
1921	1921-04-27	1921-09-21
1922	1922-05-10	1922-10-29
1923	1923-05-05	1923-09-28
1924	1924-05-07	1924-10-17
1925	1925-04-23	1925-09-26
1926	1926-04-30	1926-10-04
1927	1927-04-19	1927-10-06
1928	1928-05-03	1928-10-16
1929	1929-03-25	1929-09-29
1930	1930-04-11	1930-10-14
1931	1931-04-19	1931-09-22
1932	1932-05-08	1932-09-20
1933	1933-04-29	1933-09-26
1934	1934-05-04	1934-10-09
1935	1935-04-26	1935-10-17
1936	1936-05-01	1936-09-22
1942	1942-04-26	1942-09-19
1943	1943-05-06	1943-09-06
1944	1944-05-12	1944-09-20
1945	1945-06-01	1945-09-28
1946	1946-06-07	1946-10-07
1947	1947-05-28	1947-10-16
1948	1948-04-25	1948-09-20
1949	1949-05-05	1949-10-11
1951	1951-05-01	1951-10-05
1952	1952-04-21	1952-10-01
1953	1953-05-10	1953-10-21
1954	1954-05-31	1954-10-05
1955	1955-05-03	1955-09-20
1956	1956-05-11	1956-09-14
1957	1957-04-27	1957-09-21
1958	1958-05-18	1958-09-26
1959	1959-05-02	1959-10-05
1960	1960-04-23	1960-09-23
1961	1961-05-14	1961-10-12
1962	1962-05-13	1962-10-15
1963	1963-05-09	1963-10-07
1964	1964-05-05	1964-09-16
1965	1965-05-08	1965-09-21
1966	1966-05-23	1966-09-03
1967	1967-05-27	1967-09-16
1968	1968-06-06	1968-09-23
1969	1969-05-28	1969-09-06
1970	1970-04-30	1970-09-24
1971	1971-06-01	1971-10-01
1972	1972-05-24	1972-09-17
1973	1973-06-03	1973-09-27
1974	1974-05-16	1974-08-27
1975	1975-05-20	1975-09-06
1976	1976-04-18	1976-09-13
1977	1977-05-14	1977-09-18
1978	1978-05-26	1978-09-22
1979	1979-05-08	1979-09-12
1980	1980-05-05	1980-09-22
1981	1981-06-13	1981-09-13
1985	1985-04-22	1985-09-24
1986	1986-04-27	1986-10-01
1987	1987-05-18	1987-09-15
1988	1988-05-16	1988-08-19
1989	1989-05-31	1989-09-22
1990	1990-04-28	1990-09-07
1991	1991-05-13	1991-09-17
1992	1992-05-13	1992-08-28
1993	1993-05-10	1993-09-15
1994	1994-06-06	1994-09-16
1995	1995-06-11	1995-09-07
1996	1996-05-19	1996-08-24
1997	1997-06-21	1997-10-05
1998	1998-05-15	1998-09-28
1999	1999-04-10	1999-09-29
2000	2000-05-07	2000-09-03
2001	2001-06-13	2001-09-10
2002	2002-04-17	2002-10-04
2003	2003-06-25	2003-08-30
2004	2004-05-10	2004-09-07
2005	2005-05-12	2005-10-07
2006	2006-05-29	2006-10-05
2008	2008-06-06	2008-09-14
2009	2009-04-28	2009-08-28
2010	2010-05-08	2010-10-12
2011	2011-05-11	2011-09-04
2012	2012-05-04	2012-09-08
2013	2013-04-19	2013-10-05
2014	2014-05-09	2014-10-03
2015	2015-05-07	2015-09-09
2016	2016-05-28	2016-09-24
2017	2017-05-17	2017-10-08
2018	2018-05-03	2018-10-10
2019	2019-05-19	2019-10-04
2020	2020-05-25	2020-09-13
2021	2021-05-21	2021-09-20
2022	2022-05-21	2022-09-22
2023	2023-06-02	2023-10-05
2024	2024-04-17	2024-10-07
2025	2025-06-05	2025-09-30
2026	2026-03-23	2026-10-14

Every Fixed Threshold

Fixed thresholds at Circleville
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	122	107	1930	46
35 C (95 F): Days	86	41	1930	2
40 C (104 F): Days	5	7	1936	7
90 F (32.2 C): Days	121	85	1936	14
100 F (37.8 C): Days	27	19	1930	1
0 C (32 F): Ice days (max	122	51	1978	26
0 C (32 F): Frost days (min	122	141	1923	66
-10 C (14 F): Days with min	122	46	1978	23
-20 C (-4 F): Days with min	68	14	1977	8
-30 C (-22 F): Days with min	2	1	1912	1
20 C (68 F): Tropical nights (min	122	63	2018	45
25 C (77 F): Days with min	7	3	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	122	54	2011	35
25 mm (0.98 in): Days with 25 mm or more rain	122	16	1919	14
50 mm (1.97 in): Days with 50 mm or more rain	73	5	1935	2
100 mm (3.94 in): Days with 100 mm or more rain	7	2	1968	1
10 cm (3.9 in): Days with 10 cm or more snowfall	24	4	1978	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1895.

Download the Data

Data for Circleville 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).

Circleville Threshold Days by Year (USC00331592)

Key Facts for Circleville Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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