Canton L&D 20 Threshold Days by Year (USC00231275)

18 fixed thresholds counted per year at Canton L&D 20 (USC00231275): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Canton L&D 20 Thresholds

Canton L&D 20: days with 10 mm (0.39 in) or more of precipitation in 93 years, most in 1973 with 48.
Canton L&D 20: days with 25 mm (0.98 in) or more of precipitation in 93 years, most in 1995 with 19.
Canton L&D 20: days with a maximum temperature at or above 30 C (86 F) in 88 years, most in 1988 with 102.
Canton L&D 20: days with a maximum temperature at or above 90 F (32.2 C) in 88 years, most in 1988 with 75.
18 fixed thresholds have at least one qualifying day at Canton L&D 20.

Days at or above 30 C (86 F)

88 years with a qualifying day

Days per year at Canton L&D 20 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 102 in 1988.

Days at or above 30 C (86 F) per year at Canton L&D 20
Year	Days	Decade average
1938	71	73.5
1939	76	73.5
1940	51	55.2
1941	65	55.2
1942	53	55.2
1943	58	55.2
1944	57	55.2
1945	39	55.2
1946	47	55.2
1947	61	55.2
1948	67	55.2
1949	54	55.2
1950	20	57.8
1951	32	57.8
1952	62	57.8
1953	82	57.8
1954	62	57.8
1955	68	57.8
1956	81	57.8
1957	53	57.8
1958	43	57.8
1959	75	57.8
1960	51	52.6
1961	56	52.6
1962	57	52.6
1963	66	52.6
1964	66	52.6
1965	43	52.6
1966	48	52.6
1967	36	52.6
1968	54	52.6
1969	49	52.6
1970	54	60.1
1971	67	60.1
1972	64	60.1
1973	50	60.1
1974	34	60.1
1975	73	60.1
1976	55	60.1
1977	78	60.1
1978	59	60.1
1979	67	60.1
1980	90	77.7
1981	62	77.7
1982	50	77.7
1983	90	77.7
1985	65	77.7
1986	83	77.7
1987	73	77.7
1988	102	77.7
1989	84	77.7
1990	77	52.9
1991	85	52.9
1992	42	52.9
1993	43	52.9
1994	46	52.9
1995	52	52.9
1996	37	52.9
1997	48	52.9
1998	50	52.9
1999	49	52.9
2000	46	44.2
2001	41	44.2
2002	61	44.2
2003	31	44.2
2004	20	44.2
2005	77	44.2
2006	54	44.2
2007	66	44.2
2008	30	44.2
2009	16	44.2
2010	53	50.4
2011	50	50.4
2012	76	50.4
2013	50	50.4
2014	24	50.4
2015	39	50.4
2016	57	50.4
2017	50	50.4
2018	64	50.4
2019	41	50.4
2020	35	47.1
2021	44	47.1
2022	39	47.1
2023	52	47.1
2024	48	47.1
2025	59	47.1
2026	53	47.1

For each year, a bar from the first to the last day at Canton L&D 20 meeting 30 C (86 F).

First to last qualifying date each year at Canton L&D 20
Year	First date	Last date
1938	1938-04-27	1938-10-11
1939	1939-05-21	1939-10-25
1940	1940-03-30	1940-10-25
1941	1941-05-15	1941-09-21
1942	1942-04-29	1942-09-18
1943	1943-05-05	1943-09-05
1944	1944-05-15	1944-09-04
1945	1945-05-20	1945-09-09
1946	1946-06-06	1946-09-27
1947	1947-06-09	1947-10-14
1948	1948-04-24	1948-09-20
1949	1949-05-03	1949-08-27
1950	1950-05-23	1950-10-31
1951	1951-06-01	1951-10-04
1952	1952-05-04	1952-09-30
1953	1953-05-24	1953-10-19
1954	1954-04-24	1954-10-04
1955	1955-05-03	1955-09-29
1956	1956-04-27	1956-10-12
1957	1957-06-04	1957-09-19
1958	1958-05-11	1958-09-24
1959	1959-05-02	1959-09-22
1960	1960-04-24	1960-10-12
1961	1961-05-31	1961-09-11
1962	1962-05-13	1962-10-11
1963	1963-05-08	1963-10-15
1964	1964-04-16	1964-09-20
1965	1965-05-08	1965-09-19
1966	1966-05-05	1966-09-02
1967	1967-05-18	1967-10-04
1968	1968-05-02	1968-09-07
1969	1969-05-28	1969-09-29
1970	1970-04-28	1970-09-21
1971	1971-04-12	1971-10-01
1972	1972-05-19	1972-09-24
1973	1973-06-08	1973-09-02
1974	1974-05-13	1974-08-26
1975	1975-05-18	1975-10-13
1976	1976-05-21	1976-09-19
1977	1977-04-16	1977-09-08
1978	1978-05-25	1978-09-19
1979	1979-05-07	1979-10-21
1980	1980-04-20	1980-10-08
1981	1981-04-02	1981-10-06
1982	1982-05-05	1982-10-06
1983	1983-06-10	1983-10-04
1985	1985-04-18	1985-09-20
1986	1986-03-30	1986-09-30
1987	1987-04-21	1987-09-27
1988	1988-03-23	1988-10-18
1989	1989-04-25	1989-10-16
1990	1990-04-24	1990-10-07
1991	1991-03-27	1991-10-03
1992	1992-05-01	1992-10-04
1993	1993-06-08	1993-09-13
1994	1994-06-07	1994-10-02
1995	1995-06-08	1995-10-12
1996	1996-04-20	1996-09-11
1997	1997-05-19	1997-10-07
1998	1998-05-19	1998-09-27
1999	1999-06-06	1999-09-26
2000	2000-05-09	2000-09-23
2001	2001-04-10	2001-09-08
2002	2002-04-16	2002-10-03
2003	2003-06-18	2003-08-29
2004	2004-04-17	2004-08-28
2005	2005-05-11	2005-10-06
2006	2006-04-14	2006-10-04
2007	2007-04-30	2007-10-08
2008	2008-06-02	2008-09-03
2009	2009-06-02	2009-08-10
2010	2010-05-24	2010-09-24
2011	2011-04-04	2011-09-04
2012	2012-04-03	2012-09-07
2013	2013-05-15	2013-09-20
2014	2014-05-13	2014-09-05
2015	2015-06-08	2015-09-25
2016	2016-06-07	2016-10-18
2017	2017-05-16	2017-10-15
2018	2018-05-15	2018-10-04
2019	2019-05-17	2019-10-02
2020	2020-06-03	2020-09-07
2021	2021-06-06	2021-09-29
2022	2022-05-12	2022-09-21
2023	2023-05-08	2023-10-04
2024	2024-05-20	2024-10-13
2025	2025-05-16	2025-10-06
2026	2026-03-22	2026-10-13

Every Fixed Threshold

Fixed thresholds at Canton L&D 20
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	88	102	1988	53
35 C (95 F): Days	79	47	1988	9
40 C (104 F): Days	10	6	1980	2
90 F (32.2 C): Days	88	75	1988	26
100 F (37.8 C): Days	35	23	1988	1
110 F (43.3 C): Days	1	1	1980	1
0 C (32 F): Ice days (max	88	56	1978	18
0 C (32 F): Frost days (min	83	144	1952	59
-10 C (14 F): Days with min	83	55	1978	23
-20 C (-4 F): Days with min	68	19	1979	6
20 C (68 F): Tropical nights (min	83	71	1990	47
25 C (77 F): Days with min	53	12	1988	3
10 mm (0.39 in): Days with 10 mm or more rain	93	48	1973	29
25 mm (0.98 in): Days with 25 mm or more rain	93	19	1995	10
50 mm (1.97 in): Days with 50 mm or more rain	78	6	2009	1
100 mm (3.94 in): Days with 100 mm or more rain	15	2	1985	1
10 cm (3.9 in): Days with 10 cm or more snowfall	41	5	1945	2
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1959	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.

Download the Data

Data for Canton L&D 20 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).

Canton L&D 20 Threshold Days by Year (USC00231275)

Key Facts for Canton L&D 20 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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