Beloit Threshold Days by Year (USC00470696)

19 fixed thresholds counted per year at Beloit (USC00470696): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Beloit Thresholds

Beloit: days with a maximum temperature at or above 30 C (86 F) in 121 years, most in 1936 with 78.
Beloit: days with a maximum temperature at or below 0 C (32 F) in 121 years, most in 2014 with 87.
Beloit: days with a maximum temperature at or above 90 F (32.2 C) in 119 years, most in 1936 with 53.
Beloit: nights with a minimum temperature at or below 0 C (32 F) in 119 years, most in 1926 with 178.
19 fixed thresholds have at least one qualifying day at Beloit.

Days at or above 30 C (86 F)

121 years with a qualifying day

Days per year at Beloit with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 78 in 1936.

Days at or above 30 C (86 F) per year at Beloit
Year	Days	Decade average
1893	35	41.4
1894	57	41.4
1895	58	41.4
1896	40	41.4
1897	41	41.4
1898	25	41.4
1899	34	41.4
1900	27	28.5
1901	46	28.5
1904	16	28.5
1906	25	28.5
1912	27	36
1913	44	36
1914	39	36
1915	12	36
1916	50	36
1917	26	36
1918	38	36
1919	52	36
1920	46	39.6
1921	72	39.6
1922	50	39.6
1923	41	39.6
1924	19	39.6
1925	48	39.6
1926	24	39.6
1927	33	39.6
1928	29	39.6
1929	34	39.6
1930	47	51.3
1931	56	51.3
1932	43	51.3
1933	53	51.3
1934	54	51.3
1935	46	51.3
1936	78	51.3
1937	49	51.3
1938	36	51.3
1940	29	45.3
1941	47	45.3
1942	30	45.3
1943	45	45.3
1944	54	45.3
1945	32	45.3
1946	43	45.3
1947	57	45.3
1948	59	45.3
1949	57	45.3
1950	24	41.1
1951	19	41.1
1952	46	41.1
1953	55	41.1
1954	42	41.1
1955	63	41.1
1956	42	41.1
1957	36	41.1
1958	30	41.1
1959	54	41.1
1960	32	37.5
1961	39	37.5
1962	42	37.5
1963	48	37.5
1964	44	37.5
1965	35	37.5
1966	42	37.5
1967	23	37.5
1968	33	37.5
1969	37	37.5
1970	54	42
1971	53	42
1972	39	42
1973	41	42
1978	38	42
1979	27	42
1980	41	36.6
1981	22	36.6
1982	13	36.6
1983	57	36.6
1984	42	36.6
1985	32	36.6
1986	22	36.6
1987	47	36.6
1988	64	36.6
1989	26	36.6
1990	20	29.4
1991	48	29.4
1992	19	29.4
1993	18	29.4
1994	30	29.4
1995	46	29.4
1996	20	29.4
1997	25	29.4
1998	33	29.4
1999	35	29.4
2000	17	27.9
2001	42	27.9
2002	43	27.9
2003	34	27.9
2004	10	27.9
2005	53	27.9
2006	23	27.9
2007	36	27.9
2008	10	27.9
2009	11	27.9
2010	36	24.5
2011	41	24.5
2012	55	24.5
2013	22	24.5
2014	5	24.5
2015	17	24.5
2016	15	24.5
2017	14	24.5
2018	16	24.5
2019	24	24.5
2020	28	35.9
2021	46	35.9
2022	29	35.9
2023	32	35.9
2024	41	35.9
2025	38	35.9
2026	37	35.9

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

First to last qualifying date each year at Beloit
Year	First date	Last date
1893	1893-06-12	1893-09-21
1894	1894-05-14	1894-09-02
1895	1895-05-09	1895-09-22
1896	1896-05-07	1896-09-09
1897	1897-06-13	1897-10-04
1898	1898-06-03	1898-09-03
1899	1899-06-03	1899-09-16
1900	1900-05-27	1900-09-10
1901	1901-06-11	1901-09-06
1904	1904-06-19	1904-08-21
1906	1906-05-17	1906-09-17
1912	1912-06-25	1912-09-11
1913	1913-06-14	1913-09-07
1914	1914-05-25	1914-09-20
1915	1915-04-23	1915-09-13
1916	1916-05-25	1916-09-11
1917	1917-05-17	1917-09-05
1918	1918-05-03	1918-08-28
1919	1919-05-30	1919-09-20
1920	1920-06-08	1920-09-27
1921	1921-05-19	1921-09-29
1922	1922-05-10	1922-10-05
1923	1923-05-07	1923-08-14
1924	1924-06-19	1924-08-30
1925	1925-05-22	1925-09-20
1926	1926-04-30	1926-09-19
1927	1927-05-21	1927-09-17
1928	1928-05-02	1928-09-08
1929	1929-05-28	1929-09-04
1930	1930-04-10	1930-09-23
1931	1931-05-27	1931-09-20
1932	1932-05-14	1932-09-19
1933	1933-06-03	1933-09-09
1934	1934-05-03	1934-08-12
1935	1935-06-11	1935-09-25
1936	1936-05-06	1936-09-15
1937	1937-05-30	1937-09-24
1938	1938-05-03	1938-10-10
1940	1940-06-02	1940-09-20
1941	1941-05-20	1941-09-21
1942	1942-04-29	1942-09-18
1943	1943-06-12	1943-08-31
1944	1944-05-15	1944-09-03
1945	1945-06-23	1945-09-08
1946	1946-05-15	1946-09-27
1947	1947-06-09	1947-10-15
1948	1948-06-01	1948-09-20
1949	1949-05-03	1949-08-26
1950	1950-05-24	1950-10-18
1951	1951-05-01	1951-09-12
1952	1952-04-28	1952-09-28
1953	1953-05-29	1953-10-02
1954	1954-06-09	1954-10-03
1955	1955-05-03	1955-09-19
1956	1956-05-22	1956-09-22
1957	1957-05-01	1957-09-01
1958	1958-05-14	1958-08-30
1959	1959-05-02	1959-09-23
1960	1960-04-22	1960-09-09
1961	1961-05-13	1961-09-11
1962	1962-04-26	1962-09-13
1963	1963-05-08	1963-10-06
1964	1964-05-18	1964-09-10
1965	1965-05-02	1965-09-19
1966	1966-06-04	1966-09-02
1967	1967-05-18	1967-09-09
1968	1968-06-04	1968-09-03
1969	1969-05-16	1969-10-01
1970	1970-04-29	1970-09-21
1971	1971-05-18	1971-10-03
1972	1972-05-18	1972-08-30
1973	1973-06-08	1973-09-03
1978	1978-05-25	1978-09-20
1979	1979-05-08	1979-09-11
1980	1980-04-22	1980-09-08
1981	1981-06-06	1981-09-11
1982	1982-05-15	1982-09-12
1983	1983-06-11	1983-09-11
1984	1984-06-06	1984-09-25
1985	1985-04-22	1985-09-20
1986	1986-04-26	1986-09-26
1987	1987-04-21	1987-09-06
1988	1988-05-29	1988-09-19
1989	1989-05-25	1989-08-23
1990	1990-04-26	1990-10-05
1991	1991-05-12	1991-09-16
1992	1992-05-02	1992-08-26
1993	1993-05-11	1993-09-01
1994	1994-05-21	1994-09-16
1995	1995-06-08	1995-09-06
1996	1996-05-18	1996-09-05
1997	1997-06-21	1997-10-08
1998	1998-05-15	1998-09-27
1999	1999-05-29	1999-09-06
2000	2000-06-02	2000-09-19
2001	2001-05-16	2001-09-08
2002	2002-04-16	2002-09-10
2003	2003-04-15	2003-09-12
2004	2004-05-10	2004-09-15
2005	2005-04-20	2005-10-05
2006	2006-05-29	2006-08-24
2007	2007-05-15	2007-10-08
2008	2008-07-08	2008-09-03
2009	2009-06-21	2009-09-15
2010	2010-05-24	2010-10-11
2011	2011-05-11	2011-09-03
2012	2012-05-20	2012-09-13
2013	2013-05-15	2013-09-20
2014	2014-06-01	2014-07-23
2015	2015-06-10	2015-09-07
2016	2016-06-11	2016-09-07
2017	2017-06-05	2017-09-26
2018	2018-05-27	2018-09-18
2019	2019-06-27	2019-08-06
2020	2020-06-03	2020-08-29
2021	2021-05-02	2021-10-02
2022	2022-05-11	2022-09-21
2023	2023-05-31	2023-09-06
2024	2024-05-19	2024-09-22
2025	2025-05-16	2025-10-05
2026	2026-05-26	2026-10-13

Every Fixed Threshold

Fixed thresholds at Beloit
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	121	78	1936	37
35 C (95 F): Days	85	26	1936	3
40 C (104 F): Days	5	6	1936	1
90 F (32.2 C): Days	119	53	1936	15
100 F (37.8 C): Days	23	15	1936	3
110 F (43.3 C): Days	1	1	1936	1
0 C (32 F): Ice days (max	121	87	2014	31
0 C (32 F): Frost days (min	119	178	1926	82
-10 C (14 F): Days with min	119	80	2014	27
-20 C (-4 F): Days with min	116	33	1912	6
-30 C (-22 F): Days with min	20	5	1936	3
20 C (68 F): Tropical nights (min	117	33	1921	20
25 C (77 F): Days with min	22	4	1935	1
10 mm (0.39 in): Days with 10 mm or more rain	111	41	1965	29
25 mm (0.98 in): Days with 25 mm or more rain	111	16	1938	14
50 mm (1.97 in): Days with 50 mm or more rain	79	6	1938	1
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1898	1
10 cm (3.9 in): Days with 10 cm or more snowfall	64	9	2008	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1926	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

Data for Beloit 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).

Beloit Threshold Days by Year (USC00470696)

Key Facts for Beloit Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related