Beloit Threshold Days by Year (USC00140693)

20 fixed thresholds counted per year at Beloit (USC00140693): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Beloit Thresholds

Beloit: days with 10 mm (0.39 in) or more of precipitation in 103 years, most in 1973 with 36.
Beloit: days with 25 mm (0.98 in) or more of precipitation in 101 years, most in 1993 with 16.
Beloit: days with a maximum temperature at or above 30 C (86 F) in 91 years, most in 1956 with 134.
Beloit: days with a maximum temperature at or above 35 C (95 F) in 91 years, most in 1956 with 71.
20 fixed thresholds have at least one qualifying day at Beloit.

Days at or above 30 C (86 F)

91 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 134 in 1956.

Days at or above 30 C (86 F) per year at Beloit
Year	Days	Decade average
1894	98	97.2
1895	96	97.2
1896	86	97.2
1897	109	97.2
1898	97	97.2
1901	94	74.5
1903	55	74.5
1912	78	89.3
1913	99	89.3
1914	106	89.3
1915	39	89.3
1916	90	89.3
1917	90	89.3
1918	112	89.3
1919	100	89.3
1920	88	98.6
1921	124	98.6
1922	108	98.6
1923	82	98.6
1924	91	98.6
1955	110	98.4
1956	134	98.4
1957	73	98.4
1958	79	98.4
1959	96	98.4
1960	86	91.8
1961	77	91.8
1962	97	91.8
1963	113	91.8
1964	91	91.8
1965	83	91.8
1966	106	91.8
1967	77	91.8
1968	98	91.8
1969	90	91.8
1970	117	87.9
1971	99	87.9
1972	86	87.9
1973	81	87.9
1974	71	87.9
1975	85	87.9
1976	93	87.9
1977	72	87.9
1978	86	87.9
1979	89	87.9
1980	102	85.4
1981	72	85.4
1982	66	85.4
1983	98	85.4
1984	93	85.4
1985	76	85.4
1986	86	85.4
1987	86	85.4
1988	97	85.4
1989	78	85.4
1990	83	79.3
1991	102	79.3
1992	51	79.3
1993	64	79.3
1994	89	79.3
1995	77	79.3
1996	76	79.3
1997	85	79.3
1998	94	79.3
1999	72	79.3
2000	102	86.2
2001	92	86.2
2002	101	86.2
2003	86	86.2
2004	71	86.2
2005	99	86.2
2006	99	86.2
2008	65	86.2
2009	61	86.2
2010	95	84.1
2011	94	84.1
2012	106	84.1
2013	74	84.1
2014	76	84.1
2015	79	84.1
2016	78	84.1
2017	77	84.1
2018	85	84.1
2019	77	84.1
2020	84	88
2021	81	88
2022	98	88
2023	91	88
2024	86	88
2025	73	88
2026	103	88

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
1894	1894-05-15	1894-10-24
1895	1895-03-28	1895-09-25
1896	1896-03-27	1896-10-02
1897	1897-04-26	1897-10-24
1898	1898-04-16	1898-09-29
1901	1901-04-26	1901-09-27
1903	1903-04-23	1903-10-04
1912	1912-04-05	1912-10-05
1913	1913-04-02	1913-10-14
1914	1914-04-20	1914-09-29
1915	1915-04-28	1915-09-19
1916	1916-03-21	1916-10-07
1917	1917-03-30	1917-10-17
1918	1918-05-06	1918-10-15
1919	1919-06-07	1919-10-03
1920	1920-05-22	1920-10-11
1921	1921-03-18	1921-10-24
1922	1922-05-03	1922-10-28
1923	1923-06-02	1923-09-27
1924	1924-04-15	1924-10-20
1955	1955-04-18	1955-10-15
1956	1956-04-01	1956-10-13
1957	1957-06-05	1957-10-06
1958	1958-05-21	1958-10-19
1959	1959-04-30	1959-09-21
1960	1960-04-22	1960-10-11
1961	1961-04-19	1961-10-17
1962	1962-04-20	1962-10-14
1963	1963-04-15	1963-10-15
1964	1964-04-16	1964-10-07
1965	1965-04-20	1965-10-10
1966	1966-05-05	1966-10-27
1967	1967-03-23	1967-10-03
1968	1968-03-30	1968-10-30
1969	1969-05-26	1969-10-09
1970	1970-04-27	1970-10-04
1971	1971-03-31	1971-10-10
1972	1972-02-29	1972-10-02
1973	1973-05-18	1973-09-23
1974	1974-04-27	1974-10-04
1975	1975-05-17	1975-10-22
1976	1976-03-25	1976-10-11
1977	1977-05-04	1977-09-26
1978	1978-03-31	1978-10-20
1979	1979-05-16	1979-10-11
1980	1980-04-20	1980-10-13
1981	1981-04-02	1981-09-29
1982	1982-05-04	1982-10-05
1983	1983-05-24	1983-10-05
1984	1984-05-24	1984-09-23
1985	1985-04-18	1985-09-18
1986	1986-03-28	1986-09-28
1987	1987-04-18	1987-10-04
1988	1988-05-12	1988-09-27
1989	1989-04-21	1989-10-15
1990	1990-04-22	1990-10-16
1991	1991-04-05	1991-10-22
1992	1992-04-14	1992-10-03
1993	1993-05-14	1993-10-06
1994	1994-04-17	1994-09-30
1995	1995-06-06	1995-10-16
1996	1996-04-11	1996-10-13
1997	1997-04-18	1997-10-06
1998	1998-05-13	1998-09-28
1999	1999-06-04	1999-10-12
2000	2000-04-05	2000-10-01
2001	2001-04-08	2001-10-02
2002	2002-04-14	2002-10-02
2003	2003-04-03	2003-10-23
2004	2004-04-17	2004-09-21
2005	2005-05-11	2005-10-19
2006	2006-04-12	2006-11-09
2008	2008-05-19	2008-09-29
2009	2009-04-23	2009-09-28
2010	2010-05-23	2010-10-09
2011	2011-04-10	2011-10-25
2012	2012-04-01	2012-09-20
2013	2013-05-15	2013-10-05
2014	2014-04-10	2014-10-25
2015	2015-03-17	2015-10-14
2016	2016-05-30	2016-10-28
2017	2017-03-20	2017-09-24
2018	2018-05-07	2018-10-04
2019	2019-04-21	2019-10-01
2020	2020-04-08	2020-10-12
2021	2021-04-27	2021-09-29
2022	2022-03-30	2022-10-22
2023	2023-04-13	2023-10-24
2024	2024-04-14	2024-10-12
2025	2025-03-28	2025-10-13
2026	2026-03-21	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	91	134	1956	103
35 C (95 F): Days	91	71	1956	28
40 C (104 F): Days	66	28	1913	2
45 C (113 F): Days	4	2	1964	2
90 F (32.2 C): Days	91	114	1956	62
100 F (37.8 C): Days	86	45	1913	14
110 F (43.3 C): Days	16	5	1964	1
0 C (32 F): Ice days (max	91	59	1978	11
0 C (32 F): Frost days (min	88	154	2013	65
-10 C (14 F): Days with min	88	60	1978	18
-20 C (-4 F): Days with min	69	18	1979	5
-30 C (-22 F): Days with min	5	2	1989	2
20 C (68 F): Tropical nights (min	88	59	2000	62
25 C (77 F): Days with min	64	13	1983	4
10 mm (0.39 in): Days with 10 mm or more rain	103	36	1973	20
25 mm (0.98 in): Days with 25 mm or more rain	101	16	1993	9
50 mm (1.97 in): Days with 50 mm or more rain	65	5	2018	4
100 mm (3.94 in): Days with 100 mm or more rain	10	1	1895	1
10 cm (3.9 in): Days with 10 cm or more snowfall	63	6	1960	1
25 cm (9.8 in): Days with 25 cm or more snowfall	11	1	1924	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 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 (USC00140693)

Key Facts for Beloit Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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