Wynne Threshold Days by Year (USC00038052)

18 fixed thresholds counted per year at Wynne (USC00038052): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Wynne Thresholds

Wynne: days with 10 mm (0.39 in) or more of precipitation in 109 years, most in 2009 with 58.
Wynne: days with 25 mm (0.98 in) or more of precipitation in 109 years, most in 1957 with 29.
Wynne: days with 50 mm (1.97 in) or more of precipitation in 106 years, most in 1919 with 12.
Wynne: days with a maximum temperature at or above 30 C (86 F) in 104 years, most in 2010 with 140.
18 fixed thresholds have at least one qualifying day at Wynne.

Days at or above 30 C (86 F)

104 years with a qualifying day

Days per year at Wynne with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 140 in 2010.

Days at or above 30 C (86 F) per year at Wynne
Year	Days	Decade average
1909	107	107
1910	104	100.8
1911	119	100.8
1912	105	100.8
1913	106	100.8
1914	87	100.8
1915	74	100.8
1916	112	100.8
1917	80	100.8
1918	113	100.8
1919	108	100.8
1920	103	114.7
1921	133	114.7
1922	129	114.7
1923	94	114.7
1924	98	114.7
1925	139	114.7
1926	121	114.7
1927	116	114.7
1928	105	114.7
1929	109	114.7
1930	90	111.6
1931	110	111.6
1932	110	111.6
1933	108	111.6
1934	108	111.6
1935	99	111.6
1937	119	111.6
1938	130	111.6
1939	130	111.6
1940	109	109.8
1941	126	109.8
1942	106	109.8
1943	112	109.8
1944	103	109.8
1948	103	109.8
1951	100	108.8
1952	118	108.8
1953	125	108.8
1954	126	108.8
1955	104	108.8
1956	108	108.8
1957	85	108.8
1958	100	108.8
1959	113	108.8
1964	105	99.8
1965	96	99.8
1966	90	99.8
1967	88	99.8
1968	102	99.8
1969	118	99.8
1970	122	106.6
1972	121	106.6
1973	107	106.6
1974	83	106.6
1975	98	106.6
1976	94	106.6
1977	129	106.6
1978	109	106.6
1979	96	106.6
1980	122	104
1981	101	104
1982	102	104
1983	106	104
1984	86	104
1985	109	104
1986	121	104
1989	85	104
1990	98	92.6
1991	110	92.6
1992	75	92.6
1993	94	92.6
1994	83	92.6
1995	95	92.6
1996	98	92.6
1998	93	92.6
1999	87	92.6
2000	94	90
2001	97	90
2002	99	90
2003	61	90
2004	70	90
2005	111	90
2006	101	90
2007	120	90
2008	78	90
2009	69	90
2010	140	117
2011	123	117
2012	121	117
2013	94	117
2014	104	117
2015	104	117
2016	124	117
2017	103	117
2018	130	117
2019	127	117
2020	113	106.7
2021	113	106.7
2022	117	106.7
2023	139	106.7
2024	88	106.7
2025	99	106.7
2026	78	106.7

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

First to last qualifying date each year at Wynne
Year	First date	Last date
1909	1909-05-26	1909-11-12
1910	1910-03-24	1910-10-04
1911	1911-02-02	1911-10-16
1912	1912-05-03	1912-10-12
1913	1913-05-10	1913-10-10
1914	1914-04-17	1914-09-11
1915	1915-04-18	1915-10-31
1916	1916-05-07	1916-10-16
1917	1917-06-01	1917-10-19
1918	1918-02-26	1918-10-10
1919	1919-04-22	1919-10-10
1920	1920-04-18	1920-10-21
1921	1921-05-19	1921-10-26
1922	1922-04-06	1922-11-04
1923	1923-05-20	1923-09-30
1924	1924-04-15	1924-10-19
1925	1925-04-14	1925-10-06
1926	1926-05-09	1926-10-19
1927	1927-04-10	1927-10-28
1928	1928-03-23	1928-10-14
1929	1929-03-23	1929-10-16
1930	1930-04-10	1930-10-05
1931	1931-04-16	1931-10-26
1932	1932-04-20	1932-09-22
1933	1933-04-30	1933-09-30
1934	1934-04-26	1934-10-23
1935	1935-05-11	1935-10-16
1937	1937-04-16	1937-11-01
1938	1938-02-12	1938-10-26
1939	1939-03-12	1939-10-27
1940	1940-04-01	1940-10-27
1941	1941-04-11	1941-10-23
1942	1942-04-17	1942-10-16
1943	1943-04-10	1943-10-13
1944	1944-05-16	1944-10-31
1948	1948-04-07	1948-09-22
1951	1951-05-01	1951-10-06
1952	1952-04-29	1952-10-01
1953	1953-05-22	1953-10-22
1954	1954-04-23	1954-10-11
1955	1955-04-22	1955-10-06
1956	1956-05-11	1956-10-17
1957	1957-05-12	1957-09-20
1958	1958-05-14	1958-09-26
1959	1959-04-30	1959-10-10
1964	1964-05-04	1964-09-22
1965	1965-04-22	1965-10-17
1966	1966-05-08	1966-10-09
1967	1967-04-05	1967-10-06
1968	1968-04-18	1968-10-16
1969	1969-04-05	1969-10-22
1970	1970-04-30	1970-10-03
1972	1972-04-12	1972-10-16
1973	1973-05-10	1973-10-10
1974	1974-05-10	1974-09-18
1975	1975-04-27	1975-10-15
1976	1976-05-12	1976-10-04
1977	1977-04-15	1977-10-01
1978	1978-04-07	1978-10-12
1979	1979-05-08	1979-10-21
1980	1980-04-22	1980-10-11
1981	1981-04-28	1981-10-06
1982	1982-05-13	1982-10-09
1983	1983-06-02	1983-10-20
1984	1984-05-13	1984-09-25
1985	1985-04-30	1985-10-14
1986	1986-05-07	1986-10-04
1989	1989-04-22	1989-10-12
1990	1990-05-15	1990-10-03
1991	1991-05-12	1991-10-03
1992	1992-05-15	1992-10-13
1993	1993-05-07	1993-09-23
1994	1994-04-27	1994-10-01
1995	1995-05-13	1995-09-30
1996	1996-04-19	1996-09-23
1998	1998-05-12	1998-10-05
1999	1999-05-10	1999-10-14
2000	2000-05-18	2000-10-06
2001	2001-04-10	2001-09-24
2002	2002-04-19	2002-10-07
2003	2003-05-01	2003-10-25
2004	2004-05-08	2004-10-20
2005	2005-05-12	2005-10-20
2006	2006-04-08	2006-10-19
2007	2007-05-07	2007-10-09
2008	2008-06-01	2008-10-07
2009	2009-05-16	2009-10-09
2010	2010-04-14	2010-10-19
2011	2011-04-09	2011-10-18
2012	2012-04-01	2012-10-06
2013	2013-04-17	2013-10-06
2014	2014-05-05	2014-10-27
2015	2015-04-10	2015-10-16
2016	2016-05-12	2016-11-04
2017	2017-04-14	2017-10-22
2018	2018-05-03	2018-10-10
2019	2019-04-11	2019-10-11
2020	2020-03-27	2020-10-23
2021	2021-05-04	2021-10-25
2022	2022-04-30	2022-10-07
2023	2023-04-05	2023-10-26
2024	2024-05-02	2024-10-26
2025	2025-04-03	2025-10-14
2026	2026-03-23	2026-08-31

Every Fixed Threshold

Fixed thresholds at Wynne
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	104	140	2010	78
35 C (95 F): Days	103	77	1954	17
40 C (104 F): Days	19	11	1930	1
90 F (32.2 C): Days	104	114	1921	49
100 F (37.8 C): Days	59	33	1954	1
110 F (43.3 C): Days	1	1	1934	1
0 C (32 F): Ice days (max	95	22	1979	4
0 C (32 F): Frost days (min	104	88	1917	34
-10 C (14 F): Days with min	84	17	1917	5
-20 C (-4 F): Days with min	9	3	1910	1
20 C (68 F): Tropical nights (min	104	122	2018	98
25 C (77 F): Days with min	73	32	2010	21
10 mm (0.39 in): Days with 10 mm or more rain	109	58	2009	23
25 mm (0.98 in): Days with 25 mm or more rain	109	29	1957	11
50 mm (1.97 in): Days with 50 mm or more rain	106	12	1919	5
100 mm (3.94 in): Days with 100 mm or more rain	40	3	1927	1
10 cm (3.9 in): Days with 10 cm or more snowfall	13	3	1985	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	0	n/a	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.

Download the Data

Data for Wynne 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).

Wynne Threshold Days by Year (USC00038052)

Key Facts for Wynne Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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