Decatur Wtp Threshold Days by Year (USC00112193)

20 fixed thresholds counted per year at Decatur Wtp (USC00112193): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Decatur Wtp Thresholds

Decatur Wtp: nights with a minimum temperature at or below 0 C (32 F) in 129 years, most in 1907 with 143.
Decatur Wtp: nights with a minimum temperature at or below -10 C (14 F) in 129 years, most in 1963 with 53.
Decatur Wtp: nights with a minimum temperature at or above 20 C (68 F) in 129 years, most in 2002 with 61.
Decatur Wtp: days with 10 mm (0.39 in) or more of precipitation in 129 years, most in 1927 with 49.
20 fixed thresholds have at least one qualifying day at Decatur Wtp.

Days at or above 30 C (86 F)

128 years with a qualifying day

Days per year at Decatur Wtp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 101 in 1936.

Days at or above 30 C (86 F) per year at Decatur Wtp
Year	Days	Decade average
1894	79	76.3
1895	81	76.3
1896	60	76.3
1897	83	76.3
1898	73	76.3
1899	82	76.3
1900	72	67.6
1901	98	67.6
1902	48	67.6
1903	65	67.6
1904	43	67.6
1905	74	67.6
1906	81	67.6
1907	53	67.6
1908	81	67.6
1909	61	67.6
1910	57	69
1911	87	69
1912	60	69
1913	91	69
1914	87	69
1915	37	69
1916	78	69
1917	47	69
1918	67	69
1919	79	69
1920	72	73.1
1921	97	73.1
1922	95	73.1
1923	72	73.1
1924	57	73.1
1925	92	73.1
1926	73	73.1
1927	50	73.1
1928	63	73.1
1929	60	73.1
1930	81	85.5
1931	97	85.5
1932	74	85.5
1933	96	85.5
1934	89	85.5
1935	70	85.5
1936	101	85.5
1937	76	85.5
1938	91	85.5
1939	80	85.5
1940	69	65.4
1941	79	65.4
1942	58	65.4
1943	66	65.4
1944	81	65.4
1945	39	65.4
1946	52	65.4
1947	65	65.4
1948	71	65.4
1949	74	65.4
1950	41	69.3
1951	52	69.3
1952	82	69.3
1953	96	69.3
1954	89	69.3
1955	82	69.3
1956	68	69.3
1957	51	69.3
1958	43	69.3
1959	89	69.3
1960	58	64.3
1961	69	64.3
1962	77	64.3
1963	72	64.3
1964	71	64.3
1965	52	64.3
1966	63	64.3
1967	50	64.3
1968	64	64.3
1969	67	64.3
1970	67	64.8
1971	61	64.8
1972	63	64.8
1973	52	64.8
1974	39	64.8
1975	68	64.8
1976	69	64.8
1977	77	64.8
1978	70	64.8
1979	82	64.8
1980	91	76.6
1981	52	76.6
1982	54	76.6
1983	98	76.6
1984	75	76.6
1987	94	76.6
1988	93	76.6
1989	56	76.6
1990	56	55.7
1992	31	55.7
1993	54	55.7
1994	60	55.7
1995	75	55.7
1996	58	55.7
1999	56	55.7
2000	47	60.4
2001	67	60.4
2002	85	60.4
2003	48	60.4
2004	42	60.4
2005	83	60.4
2006	64	60.4
2007	83	60.4
2008	54	60.4
2009	31	60.4
2010	55	48.7
2011	61	48.7
2012	71	48.7
2013	36	48.7
2014	21	48.7
2015	34	48.7
2016	51	48.7
2017	49	48.7
2018	65	48.7
2019	44	48.7
2020	43	45
2021	50	45
2022	50	45
2023	43	45
2024	51	45
2025	55	45
2026	23	45

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

First to last qualifying date each year at Decatur Wtp
Year	First date	Last date
1894	1894-04-17	1894-09-09
1895	1895-04-25	1895-09-22
1896	1896-04-16	1896-09-14
1897	1897-05-07	1897-10-15
1898	1898-05-24	1898-10-03
1899	1899-04-28	1899-10-15
1900	1900-04-29	1900-10-05
1901	1901-04-29	1901-10-01
1902	1902-04-21	1902-08-30
1903	1903-05-10	1903-10-03
1904	1904-05-21	1904-09-29
1905	1905-05-11	1905-10-09
1906	1906-04-28	1906-09-26
1907	1907-03-22	1907-09-20
1908	1908-05-16	1908-10-19
1909	1909-05-06	1909-10-04
1910	1910-03-24	1910-10-18
1911	1911-05-10	1911-10-03
1912	1912-05-23	1912-10-06
1913	1913-05-15	1913-09-12
1914	1914-04-23	1914-09-22
1915	1915-04-26	1915-09-20
1916	1916-05-07	1916-10-09
1917	1917-05-20	1917-09-20
1918	1918-05-20	1918-10-05
1919	1919-05-29	1919-10-03
1920	1920-05-26	1920-10-21
1921	1921-05-18	1921-09-29
1922	1922-05-09	1922-10-05
1923	1923-05-01	1923-09-28
1924	1924-04-16	1924-10-18
1925	1925-04-18	1925-09-29
1926	1926-04-30	1926-10-03
1927	1927-05-21	1927-10-28
1928	1928-05-02	1928-10-12
1929	1929-03-24	1929-09-28
1930	1930-04-10	1930-10-12
1931	1931-05-16	1931-10-06
1932	1932-05-14	1932-09-15
1933	1933-05-20	1933-09-30
1934	1934-05-06	1934-10-10
1935	1935-04-26	1935-10-13
1936	1936-04-20	1936-09-22
1937	1937-04-17	1937-10-05
1938	1938-05-02	1938-10-18
1939	1939-05-17	1939-10-08
1940	1940-05-07	1940-09-22
1941	1941-04-13	1941-09-24
1942	1942-04-29	1942-09-18
1943	1943-05-05	1943-09-05
1944	1944-05-15	1944-10-06
1945	1945-06-23	1945-09-23
1946	1946-04-01	1946-10-08
1947	1947-05-15	1947-10-22
1948	1948-05-21	1948-09-20
1949	1949-05-03	1949-10-09
1950	1950-05-23	1950-10-30
1951	1951-04-28	1951-10-04
1952	1952-04-29	1952-09-30
1953	1953-05-21	1953-10-22
1954	1954-04-25	1954-10-10
1955	1955-05-03	1955-09-21
1956	1956-05-12	1956-10-17
1957	1957-06-05	1957-09-03
1958	1958-05-11	1958-09-25
1959	1959-05-02	1959-09-28
1960	1960-05-15	1960-09-24
1961	1961-05-31	1961-10-12
1962	1962-04-26	1962-10-12
1963	1963-05-08	1963-10-23
1964	1964-05-17	1964-09-20
1965	1965-05-04	1965-09-20
1966	1966-05-23	1966-09-13
1967	1967-05-24	1967-10-04
1968	1968-05-02	1968-10-15
1969	1969-05-03	1969-10-04
1970	1970-04-28	1970-09-21
1971	1971-05-16	1971-10-02
1972	1972-05-19	1972-09-20
1973	1973-06-09	1973-09-24
1974	1974-05-20	1974-08-27
1975	1975-05-18	1975-10-14
1976	1976-05-21	1976-10-04
1977	1977-04-16	1977-09-08
1978	1978-05-25	1978-09-20
1979	1979-05-08	1979-10-21
1980	1980-04-22	1980-10-08
1981	1981-04-27	1981-10-05
1982	1982-05-05	1982-10-09
1983	1983-06-09	1983-10-03
1984	1984-05-18	1984-09-21
1987	1987-04-20	1987-09-27
1988	1988-05-12	1988-09-22
1989	1989-04-25	1989-10-14
1990	1990-04-24	1990-10-04
1992	1992-05-10	1992-09-17
1993	1993-05-08	1993-08-30
1994	1994-05-22	1994-10-01
1995	1995-06-05	1995-10-13
1996	1996-05-17	1996-09-08
1999	1999-06-05	1999-09-27
2000	2000-05-12	2000-09-19
2001	2001-04-30	2001-09-13
2002	2002-04-16	2002-10-02
2003	2003-05-09	2003-09-11
2004	2004-04-17	2004-09-23
2005	2005-05-10	2005-10-05
2006	2006-04-14	2006-10-04
2007	2007-04-30	2007-10-08
2008	2008-05-30	2008-10-12
2009	2009-05-22	2009-08-27
2010	2010-05-23	2010-09-23
2011	2011-05-10	2011-09-13
2012	2012-05-05	2012-09-06
2013	2013-05-14	2013-09-19
2014	2014-05-21	2014-09-05
2015	2015-06-07	2015-09-10
2016	2016-06-10	2016-09-25
2017	2017-06-03	2017-09-26
2018	2018-05-10	2018-10-06
2019	2019-05-24	2019-10-01
2020	2020-06-02	2020-09-08
2021	2021-05-23	2021-09-30
2022	2022-05-11	2022-09-20
2023	2023-05-24	2023-10-04
2024	2024-05-19	2024-09-21
2025	2025-05-15	2025-10-03
2026	2026-05-28	2026-08-16

Every Fixed Threshold

Fixed thresholds at Decatur Wtp
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	128	101	1936	23
35 C (95 F): Days	117	48	1936	1
40 C (104 F): Days	18	13	1934	3
45 C (113 F): Days	1	1	1954	1
90 F (32.2 C): Days	128	79	1933	4
100 F (37.8 C): Days	43	26	1936	5
110 F (43.3 C): Days	2	1	1936	1
0 C (32 F): Ice days (max	128	56	2014	26
0 C (32 F): Frost days (min	129	143	1907	45
-10 C (14 F): Days with min	129	53	1963	8
-20 C (-4 F): Days with min	98	17	1963	7
-30 C (-22 F): Days with min	8	1	1894	1
20 C (68 F): Tropical nights (min	129	61	2002	26
25 C (77 F): Days with min	37	8	1934	2
10 mm (0.39 in): Days with 10 mm or more rain	129	49	1927	30
25 mm (0.98 in): Days with 25 mm or more rain	129	18	1973	10
50 mm (1.97 in): Days with 50 mm or more rain	107	8	1926	5
100 mm (3.94 in): Days with 100 mm or more rain	12	2	1974	1
10 cm (3.9 in): Days with 10 cm or more snowfall	77	6	1960	4
25 cm (9.8 in): Days with 25 cm or more snowfall	3	2	1906	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 Decatur Wtp 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Decatur Wtp Threshold Days by Year (USC00112193)

Key Facts for Decatur Wtp Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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