Bellefontaine Threshold Days by Year

18 fixed thresholds counted per year at Bellefontaine (USC00330563): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bellefontaine Thresholds

Bellefontaine: days with a maximum temperature at or above 30 C (86 F) in 123 years, most in 1934 with 77.
Bellefontaine: days with a maximum temperature at or below 0 C (32 F) in 123 years, most in 2010 with 69.
Bellefontaine: nights with a minimum temperature at or below 0 C (32 F) in 121 years, most in 1917 with 161.
Bellefontaine: nights with a minimum temperature at or below -10 C (14 F) in 121 years, most in 1912 with 55.
18 fixed thresholds have at least one qualifying day at Bellefontaine.

Days at or above 30 C (86 F)

123 years with a qualifying day

Days per year at Bellefontaine with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 77 in 1934.

Days at or above 30 C (86 F) per year at Bellefontaine
Year	Days	Decade average
1894	65	52.5
1895	56	52.5
1896	40	52.5
1899	49	52.5
1900	28	32.2
1901	31	32.2
1902	19	32.2
1903	37	32.2
1904	20	32.2
1905	34	32.2
1906	51	32.2
1907	19	32.2
1908	57	32.2
1909	26	32.2
1910	35	36.3
1911	43	36.3
1912	24	36.3
1913	53	36.3
1914	51	36.3
1915	16	36.3
1916	41	36.3
1917	18	36.3
1918	32	36.3
1919	50	36.3
1920	22	35.6
1921	57	35.6
1922	39	35.6
1923	39	35.6
1924	24	35.6
1925	48	35.6
1926	25	35.6
1929	31	35.6
1930	30	52.3
1931	58	52.3
1932	48	52.3
1933	64	52.3
1934	77	52.3
1935	39	52.3
1936	61	52.3
1937	41	52.3
1938	44	52.3
1939	61	52.3
1940	55	47.6
1941	71	47.6
1942	48	47.6
1943	47	47.6
1944	67	47.6
1945	35	47.6
1946	26	47.6
1947	32	47.6
1952	59	40.9
1953	54	40.9
1954	41	40.9
1955	59	40.9
1956	26	40.9
1957	35	40.9
1958	7	40.9
1959	46	40.9
1960	28	26.8
1961	24	26.8
1962	30	26.8
1963	20	26.8
1964	41	26.8
1965	22	26.8
1966	34	26.8
1967	18	26.8
1968	28	26.8
1969	23	26.8
1970	34	23.2
1971	28	23.2
1972	16	23.2
1973	21	23.2
1974	21	23.2
1975	25	23.2
1976	14	23.2
1977	38	23.2
1978	24	23.2
1979	11	23.2
1980	40	33.7
1981	16	33.7
1982	23	33.7
1983	59	33.7
1984	28	33.7
1985	24	33.7
1986	33	33.7
1987	41	33.7
1988	56	33.7
1989	17	33.7
1991	56	28.2
1992	4	28.2
1993	26	28.2
1994	29	28.2
1995	29	28.2
1996	24	28.2
1997	18	28.2
1998	26	28.2
1999	42	28.2
2000	6	25.1
2001	21	25.1
2002	57	25.1
2003	14	25.1
2004	10	25.1
2005	41	25.1
2006	23	25.1
2007	46	25.1
2008	23	25.1
2009	10	25.1
2010	35	33
2011	50	33
2012	50	33
2013	20	33
2014	8	33
2016	41	33
2017	17	33
2018	35	33
2019	41	33
2020	35	26.9
2021	32	26.9
2022	20	26.9
2023	11	26.9
2024	31	26.9
2025	35	26.9
2026	24	26.9

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

First to last qualifying date each year at Bellefontaine
Year	First date	Last date
1894	1894-04-28	1894-09-14
1895	1895-05-04	1895-09-22
1896	1896-04-16	1896-09-13
1899	1899-05-01	1899-09-17
1900	1900-05-15	1900-09-26
1901	1901-06-11	1901-08-30
1902	1902-05-19	1902-08-30
1903	1903-05-28	1903-09-16
1904	1904-05-25	1904-09-29
1905	1905-06-08	1905-09-30
1906	1906-05-15	1906-09-18
1907	1907-06-17	1907-09-20
1908	1908-05-25	1908-09-26
1909	1909-06-07	1909-09-14
1910	1910-06-16	1910-09-05
1911	1911-05-16	1911-08-17
1912	1912-06-26	1912-09-23
1913	1913-06-07	1913-10-10
1914	1914-05-05	1914-09-23
1915	1915-04-27	1915-09-17
1916	1916-05-26	1916-10-08
1917	1917-05-20	1917-09-03
1918	1918-05-29	1918-08-26
1919	1919-05-31	1919-10-03
1920	1920-06-10	1920-09-27
1921	1921-05-24	1921-09-15
1922	1922-05-12	1922-10-06
1923	1923-06-01	1923-09-28
1924	1924-06-20	1924-09-01
1925	1925-04-24	1925-09-21
1926	1926-05-09	1926-09-23
1929	1929-05-29	1929-09-28
1930	1930-04-11	1930-08-09
1931	1931-05-28	1931-09-22
1932	1932-05-24	1932-09-19
1933	1933-05-24	1933-09-26
1934	1934-05-06	1934-09-26
1935	1935-06-13	1935-09-24
1936	1936-05-07	1936-09-22
1937	1937-05-26	1937-10-01
1938	1938-05-03	1938-09-12
1939	1939-05-19	1939-10-09
1940	1940-05-14	1940-09-22
1941	1941-05-20	1941-09-30
1942	1942-04-30	1942-09-18
1943	1943-05-30	1943-09-13
1944	1944-05-15	1944-09-20
1945	1945-06-01	1945-09-23
1946	1946-06-11	1946-10-06
1947	1947-06-10	1947-09-19
1952	1952-05-05	1952-09-14
1953	1953-05-30	1953-10-03
1954	1954-05-31	1954-09-18
1955	1955-06-05	1955-09-19
1956	1956-06-10	1956-09-13
1957	1957-06-14	1957-09-02
1958	1958-06-05	1958-09-04
1959	1959-05-05	1959-09-28
1960	1960-06-11	1960-09-23
1961	1961-06-11	1961-09-24
1962	1962-05-14	1962-09-13
1963	1963-06-06	1963-09-19
1964	1964-05-19	1964-09-11
1965	1965-06-22	1965-09-19
1966	1966-06-09	1966-09-04
1967	1967-05-27	1967-07-26
1968	1968-06-07	1968-08-25
1969	1969-05-29	1969-09-06
1970	1970-06-12	1970-09-24
1971	1971-06-04	1971-09-29
1972	1972-05-25	1972-08-19
1973	1973-06-10	1973-09-05
1974	1974-06-09	1974-08-20
1975	1975-05-20	1975-08-28
1976	1976-06-10	1976-09-08
1977	1977-05-19	1977-09-05
1978	1978-05-28	1978-09-21
1979	1979-05-11	1979-08-09
1980	1980-06-23	1980-09-22
1981	1981-06-14	1981-08-02
1982	1982-05-12	1982-09-12
1983	1983-06-11	1983-09-19
1984	1984-06-06	1984-09-22
1985	1985-04-22	1985-09-08
1986	1986-04-26	1986-09-29
1987	1987-05-14	1987-09-11
1988	1988-05-16	1988-08-19
1989	1989-06-24	1989-08-06
1991	1991-05-15	1991-09-17
1992	1992-06-18	1992-08-11
1993	1993-05-10	1993-09-01
1994	1994-05-23	1994-09-16
1995	1995-06-19	1995-09-01
1996	1996-05-20	1996-08-24
1997	1997-06-21	1997-09-03
1998	1998-05-15	1998-09-28
1999	1999-05-18	1999-09-29
2000	2000-06-02	2000-09-03
2001	2001-06-12	2001-08-10
2002	2002-06-01	2002-09-20
2003	2003-06-25	2003-08-28
2004	2004-06-09	2004-09-24
2005	2005-06-06	2005-08-29
2006	2006-05-29	2006-08-27
2007	2007-05-24	2007-10-09
2008	2008-06-06	2008-09-15
2009	2009-06-20	2009-08-18
2010	2010-05-27	2010-10-11
2011	2011-05-13	2011-09-04
2012	2012-05-21	2012-09-07
2013	2013-05-16	2013-09-12
2014	2014-05-28	2014-09-06
2016	2016-05-28	2016-09-24
2017	2017-06-12	2017-09-28
2018	2018-05-28	2018-10-09
2019	2019-06-27	2019-10-03
2020	2020-05-27	2020-08-27
2021	2021-05-24	2021-09-20
2022	2022-06-01	2022-08-30
2023	2023-06-02	2023-09-06
2024	2024-05-22	2024-09-23
2025	2025-06-19	2025-09-30
2026	2026-06-11	2026-09-16

Every Fixed Threshold

Fixed thresholds at Bellefontaine
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	123	77	1934	24
35 C (95 F): Days	57	17	1934	1
40 C (104 F): Days	3	4	1934	1
90 F (32.2 C): Days	113	45	1934	9
100 F (37.8 C): Days	13	8	1934	1
0 C (32 F): Ice days (max	123	69	2010	33
0 C (32 F): Frost days (min	121	161	1917	75
-10 C (14 F): Days with min	121	55	1912	28
-20 C (-4 F): Days with min	98	19	1917	4
-30 C (-22 F): Days with min	4	2	1985	2
20 C (68 F): Tropical nights (min	121	36	1899	29
25 C (77 F): Days with min	3	2	1934	2
10 mm (0.39 in): Days with 10 mm or more rain	114	56	2011	40
25 mm (0.98 in): Days with 25 mm or more rain	114	17	2011	10
50 mm (1.97 in): Days with 50 mm or more rain	79	5	2005	4
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1909	1
10 cm (3.9 in): Days with 10 cm or more snowfall	39	5	1936	2
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1965	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Bellefontaine 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Bellefontaine Threshold Days by Year

Key Facts for Bellefontaine Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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