Arthur Threshold Days by Year (USC00250365)

19 fixed thresholds counted per year at Arthur (USC00250365): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Arthur Thresholds

Arthur: days with 10 mm (0.39 in) or more of precipitation in 94 years, most in 2010 with 24.
Arthur: nights with a minimum temperature at or below 0 C (32 F) in 93 years, most in 1975 with 194.
Arthur: nights with a minimum temperature at or below -10 C (14 F) in 93 years, most in 1955 with 85.
Arthur: days with a maximum temperature at or above 30 C (86 F) in 92 years, most in 2012 with 90.
19 fixed thresholds have at least one qualifying day at Arthur.

Days at or above 30 C (86 F)

92 years with a qualifying day

Days per year at Arthur with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 90 in 2012.

Days at or above 30 C (86 F) per year at Arthur
Year	Days	Decade average
1930	54	77.4
1931	89	77.4
1932	66	77.4
1933	78	77.4
1936	82	77.4
1938	86	77.4
1939	87	77.4
1940	69	60.3
1941	58	60.3
1943	68	60.3
1944	50	60.3
1945	47	60.3
1946	63	60.3
1947	58	60.3
1948	75	60.3
1949	55	60.3
1950	34	52.8
1951	22	52.8
1952	80	52.8
1953	63	52.8
1954	64	52.8
1955	67	52.8
1956	62	52.8
1957	44	52.8
1958	31	52.8
1959	61	52.8
1960	58	54.6
1961	52	54.6
1962	45	54.6
1963	70	54.6
1964	67	54.6
1965	34	54.6
1966	57	54.6
1967	52	54.6
1968	57	54.6
1969	54	54.6
1970	72	51.1
1971	49	51.1
1972	51	51.1
1973	56	51.1
1974	60	51.1
1975	42	51.1
1976	58	51.1
1977	36	51.1
1979	36	51.1
1980	55	51.6
1981	33	51.6
1982	45	51.6
1983	55	51.6
1984	48	51.6
1985	49	51.6
1986	35	51.6
1987	67	51.6
1988	71	51.6
1989	58	51.6
1990	64	53.8
1991	60	53.8
1992	33	53.8
1993	29	53.8
1994	66	53.8
1995	57	53.8
1996	43	53.8
1997	63	53.8
1998	71	53.8
1999	52	53.8
2000	86	63.7
2001	72	63.7
2002	75	63.7
2003	68	63.7
2004	46	63.7
2005	67	63.7
2006	68	63.7
2007	67	63.7
2008	51	63.7
2009	37	63.7
2010	59	64.9
2011	62	64.9
2012	90	64.9
2013	58	64.9
2014	55	64.9
2015	68	64.9
2016	62	64.9
2017	67	64.9
2018	68	64.9
2019	60	64.9
2020	82	75.1
2021	73	75.1
2022	87	75.1
2023	62	75.1
2024	73	75.1
2025	64	75.1
2026	85	75.1

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

First to last qualifying date each year at Arthur
Year	First date	Last date
1930	1930-04-08	1930-10-10
1931	1931-05-15	1931-09-28
1932	1932-05-13	1932-10-02
1933	1933-05-22	1933-09-29
1936	1936-04-19	1936-09-25
1938	1938-04-23	1938-10-09
1939	1939-04-22	1939-09-24
1940	1940-05-12	1940-09-20
1941	1941-05-13	1941-09-20
1943	1943-03-29	1943-09-18
1944	1944-05-13	1944-09-17
1945	1945-05-19	1945-09-08
1946	1946-04-19	1946-09-25
1947	1947-06-26	1947-10-20
1948	1948-04-18	1948-09-19
1949	1949-04-24	1949-09-17
1950	1950-05-22	1950-10-30
1951	1951-06-16	1951-08-12
1952	1952-05-04	1952-09-28
1953	1953-05-24	1953-10-02
1954	1954-05-21	1954-09-01
1955	1955-04-30	1955-09-18
1956	1956-05-18	1956-10-07
1957	1957-06-04	1957-09-17
1958	1958-05-28	1958-10-19
1959	1959-05-01	1959-09-09
1960	1960-04-21	1960-09-07
1961	1961-05-10	1961-09-18
1962	1962-04-24	1962-10-10
1963	1963-05-07	1963-10-05
1964	1964-04-16	1964-10-01
1965	1965-04-30	1965-09-02
1966	1966-05-04	1966-09-24
1967	1967-05-23	1967-10-04
1968	1968-06-02	1968-10-29
1969	1969-05-25	1969-09-28
1970	1970-05-17	1970-10-04
1971	1971-06-16	1971-09-14
1972	1972-05-16	1972-09-19
1973	1973-05-18	1973-09-10
1974	1974-05-19	1974-09-27
1975	1975-06-21	1975-10-08
1976	1976-06-02	1976-10-02
1977	1977-06-05	1977-09-09
1979	1979-05-07	1979-10-01
1980	1980-04-21	1980-10-01
1981	1981-05-03	1981-09-21
1982	1982-07-03	1982-09-23
1983	1983-06-22	1983-09-28
1984	1984-06-01	1984-09-22
1985	1985-05-10	1985-09-19
1986	1986-05-05	1986-08-26
1987	1987-04-19	1987-10-04
1988	1988-05-17	1988-09-26
1989	1989-04-21	1989-10-01
1990	1990-06-05	1990-10-06
1991	1991-04-07	1991-10-17
1992	1992-05-01	1992-10-03
1993	1993-06-16	1993-10-07
1994	1994-04-18	1994-09-30
1995	1995-06-14	1995-09-16
1996	1996-04-11	1996-10-13
1997	1997-05-17	1997-10-03
1998	1998-05-13	1998-09-29
1999	1999-06-05	1999-10-10
2000	2000-05-05	2000-09-19
2001	2001-05-13	2001-10-03
2002	2002-04-16	2002-09-09
2003	2003-04-15	2003-10-23
2004	2004-05-06	2004-09-19
2005	2005-05-20	2005-10-03
2006	2006-04-14	2006-10-03
2007	2007-04-30	2007-10-07
2008	2008-04-16	2008-09-27
2009	2009-05-19	2009-09-21
2010	2010-05-23	2010-09-29
2011	2011-05-09	2011-10-04
2012	2012-04-02	2012-09-17
2013	2013-05-14	2013-09-19
2014	2014-05-28	2014-09-26
2015	2015-06-03	2015-10-12
2016	2016-05-07	2016-09-24
2017	2017-05-07	2017-09-22
2018	2018-05-11	2018-09-24
2019	2019-04-21	2019-09-30
2020	2020-05-01	2020-10-10
2021	2021-05-01	2021-09-29
2022	2022-04-23	2022-09-21
2023	2023-04-12	2023-10-03
2024	2024-04-16	2024-10-11
2025	2025-05-12	2025-10-05
2026	2026-03-22	2026-10-07

Every Fixed Threshold

Fixed thresholds at Arthur
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	92	90	2012	85
35 C (95 F): Days	91	43	2012	20
40 C (104 F): Days	25	13	1936	2
45 C (113 F): Days	1	1	1936	1
90 F (32.2 C): Days	92	69	2012	51
100 F (37.8 C): Days	63	27	1936	4
110 F (43.3 C): Days	3	2	1936	1
0 C (32 F): Ice days (max	92	61	2019	5
0 C (32 F): Frost days (min	93	194	1975	84
-10 C (14 F): Days with min	93	85	1955	16
-20 C (-4 F): Days with min	92	29	1979	4
-30 C (-22 F): Days with min	29	6	1983	2
20 C (68 F): Tropical nights (min	61	12	1936	8
25 C (77 F): Days with min	1	0	n/a	1
10 mm (0.39 in): Days with 10 mm or more rain	94	24	2010	12
25 mm (0.98 in): Days with 25 mm or more rain	92	8	2007	3
50 mm (1.97 in): Days with 50 mm or more rain	30	2	1965	2
10 cm (3.9 in): Days with 10 cm or more snowfall	69	7	1973	2
25 cm (9.8 in): Days with 25 cm or more snowfall	9	2	1980	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1930.

Download the Data

Data for Arthur 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).

Arthur Threshold Days by Year (USC00250365)

Key Facts for Arthur Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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