Mt Vernon 3 NE Threshold Days by Year (USC00115943)

20 fixed thresholds counted per year at Mt Vernon 3 NE (USC00115943): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mt Vernon 3 NE Thresholds

Mt Vernon 3 NE: days with a maximum temperature at or above 30 C (86 F) in 126 years, most in 1941 with 123.
Mt Vernon 3 NE: days with a maximum temperature at or above 90 F (32.2 C) in 126 years, most in 1901 with 97.
Mt Vernon 3 NE: days with a maximum temperature at or below 0 C (32 F) in 126 years, most in 1985 with 42.
Mt Vernon 3 NE: days with 10 mm (0.39 in) or more of precipitation in 125 years, most in 2011 with 53.
20 fixed thresholds have at least one qualifying day at Mt Vernon 3 NE.

Days at or above 30 C (86 F)

126 years with a qualifying day

Days per year at Mt Vernon 3 NE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 123 in 1941.

Days at or above 30 C (86 F) per year at Mt Vernon 3 NE
Year	Days	Decade average
1896	86	80.3
1897	89	80.3
1898	71	80.3
1899	75	80.3
1900	87	89.3
1901	115	89.3
1902	86	89.3
1903	82	89.3
1904	61	89.3
1905	81	89.3
1906	106	89.3
1907	83	89.3
1908	110	89.3
1909	82	89.3
1910	80	80.3
1911	103	80.3
1912	53	80.3
1913	92	80.3
1914	88	80.3
1915	56	80.3
1916	80	80.3
1917	62	80.3
1919	109	80.3
1920	84	79.3
1921	114	79.3
1922	105	79.3
1923	52	79.3
1924	47	79.3
1925	103	79.3
1926	96	79.3
1927	63	79.3
1928	54	79.3
1929	75	79.3
1930	89	98.2
1931	97	98.2
1932	93	98.2
1933	106	98.2
1934	96	98.2
1935	77	98.2
1936	116	98.2
1937	89	98.2
1938	102	98.2
1939	117	98.2
1940	109	103.3
1941	123	103.3
1942	101	103.3
1943	102	103.3
1944	120	103.3
1945	88	103.3
1946	101	103.3
1947	102	103.3
1948	97	103.3
1949	90	103.3
1950	60	75.5
1951	57	75.5
1952	97	75.5
1953	113	75.5
1954	87	75.5
1955	83	75.5
1956	61	75.5
1957	57	75.5
1958	54	75.5
1959	86	75.5
1960	69	77.3
1961	73	77.3
1962	82	77.3
1963	98	77.3
1964	89	77.3
1965	79	77.3
1966	76	77.3
1967	56	77.3
1968	76	77.3
1969	75	77.3
1970	84	76
1971	81	76
1972	72	76
1973	90	76
1974	59	76
1975	83	76
1976	64	76
1977	80	76
1978	80	76
1979	67	76
1981	60	66.7
1982	46	66.7
1983	89	66.7
1984	78	66.7
1985	51	66.7
1986	68	66.7
1987	80	66.7
1988	75	66.7
1989	53	66.7
1990	51	52.7
1991	76	52.7
1992	25	52.7
1993	51	52.7
1994	40	52.7
1995	66	52.7
1996	52	52.7
1997	40	52.7
1998	65	52.7
1999	61	52.7
2000	35	46.1
2001	51	46.1
2002	69	46.1
2003	38	46.1
2004	19	46.1
2005	59	46.1
2006	48	46.1
2007	72	46.1
2009	24	46.1
2010	76	58
2011	62	58
2013	38	58
2014	25	58
2015	29	58
2016	53	58
2017	70	58
2018	94	58
2019	75	58
2020	69	71.3
2021	66	71.3
2022	61	71.3
2023	74	71.3
2024	75	71.3
2026	83	71.3

For each year, a bar from the first to the last day at Mt Vernon 3 NE meeting 30 C (86 F).

First to last qualifying date each year at Mt Vernon 3 NE
Year	First date	Last date
1896	1896-04-11	1896-09-18
1897	1897-05-20	1897-10-16
1898	1898-06-03	1898-10-03
1899	1899-04-28	1899-10-14
1900	1900-05-15	1900-10-26
1901	1901-04-28	1901-10-01
1902	1902-04-21	1902-09-17
1903	1903-05-10	1903-10-04
1904	1904-05-25	1904-09-30
1905	1905-05-11	1905-10-08
1906	1906-04-27	1906-10-08
1907	1907-03-19	1907-09-21
1908	1908-04-23	1908-10-23
1909	1909-05-06	1909-10-04
1910	1910-03-24	1910-10-20
1911	1911-05-10	1911-10-07
1912	1912-05-23	1912-10-06
1913	1913-04-18	1913-09-12
1914	1914-05-12	1914-09-22
1915	1915-04-20	1915-09-27
1916	1916-05-08	1916-10-08
1917	1917-05-20	1917-10-17
1919	1919-04-07	1919-10-05
1920	1920-05-23	1920-10-22
1921	1921-05-19	1921-09-29
1922	1922-05-10	1922-10-06
1923	1923-06-17	1923-09-28
1924	1924-06-08	1924-10-18
1925	1925-04-21	1925-09-29
1926	1926-05-01	1926-10-03
1927	1927-05-21	1927-10-28
1928	1928-05-10	1928-10-13
1929	1929-03-24	1929-09-29
1930	1930-04-10	1930-10-12
1931	1931-05-17	1931-10-07
1932	1932-05-14	1932-09-18
1933	1933-05-19	1933-09-30
1934	1934-04-04	1934-09-26
1935	1935-05-12	1935-10-16
1936	1936-04-15	1936-09-22
1937	1937-04-17	1937-10-05
1938	1938-04-19	1938-11-01
1939	1939-05-07	1939-10-23
1940	1940-03-31	1940-10-27
1941	1941-04-12	1941-10-06
1942	1942-04-29	1942-10-09
1943	1943-04-08	1943-10-01
1944	1944-05-11	1944-10-06
1945	1945-05-13	1945-09-28
1946	1946-04-01	1946-10-10
1947	1947-05-13	1947-10-22
1948	1948-04-24	1948-09-21
1949	1949-05-03	1949-10-09
1950	1950-05-17	1950-10-30
1951	1951-04-28	1951-10-04
1952	1952-05-01	1952-10-01
1953	1953-05-24	1953-10-22
1954	1954-04-24	1954-10-05
1955	1955-04-16	1955-09-29
1956	1956-05-12	1956-09-22
1957	1957-05-12	1957-09-11
1958	1958-05-15	1958-09-25
1959	1959-04-30	1959-10-04
1960	1960-05-25	1960-09-24
1961	1961-05-31	1961-10-12
1962	1962-05-08	1962-10-12
1963	1963-05-08	1963-10-23
1964	1964-05-17	1964-09-22
1965	1965-04-22	1965-09-20
1966	1966-05-08	1966-09-04
1967	1967-05-24	1967-10-05
1968	1968-05-01	1968-09-30
1969	1969-05-27	1969-10-04
1970	1970-04-28	1970-09-25
1971	1971-04-20	1971-10-03
1972	1972-05-20	1972-09-20
1973	1973-05-27	1973-10-04
1974	1974-05-20	1974-08-28
1975	1975-05-20	1975-10-14
1976	1976-05-22	1976-10-03
1977	1977-04-11	1977-09-10
1978	1978-05-24	1978-09-21
1979	1979-06-06	1979-10-21
1981	1981-06-03	1981-10-06
1982	1982-05-17	1982-10-07
1983	1983-06-11	1983-10-02
1984	1984-05-26	1984-09-21
1985	1985-05-13	1985-09-23
1986	1986-05-09	1986-09-30
1987	1987-04-30	1987-09-15
1988	1988-05-15	1988-09-23
1989	1989-04-25	1989-10-14
1990	1990-06-08	1990-09-08
1991	1991-05-28	1991-09-16
1992	1992-06-17	1992-09-10
1993	1993-06-08	1993-09-03
1994	1994-06-02	1994-10-02
1995	1995-06-08	1995-09-15
1996	1996-05-19	1996-09-12
1997	1997-06-20	1997-10-06
1998	1998-05-14	1998-09-28
1999	1999-06-05	1999-09-29
2000	2000-05-25	2000-09-21
2001	2001-05-16	2001-09-07
2002	2002-06-01	2002-10-03
2003	2003-06-25	2003-08-29
2004	2004-06-09	2004-08-28
2005	2005-06-06	2005-09-24
2006	2006-05-26	2006-10-05
2007	2007-05-01	2007-10-09
2009	2009-06-02	2009-08-20
2010	2010-05-24	2010-10-12
2011	2011-05-12	2011-09-14
2013	2013-05-20	2013-09-20
2014	2014-06-17	2014-09-06
2015	2015-06-10	2015-09-19
2016	2016-06-11	2016-09-26
2017	2017-05-16	2017-10-14
2018	2018-05-10	2018-10-09
2019	2019-05-16	2019-10-02
2020	2020-05-25	2020-10-08
2021	2021-05-22	2021-10-10
2022	2022-05-10	2022-09-21
2023	2023-05-14	2023-10-03
2024	2024-04-15	2024-10-05
2026	2026-05-17	2026-10-13

Every Fixed Threshold

Fixed thresholds at Mt Vernon 3 NE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	126	123	1941	83
35 C (95 F): Days	111	68	1936	27
40 C (104 F): Days	25	26	1936	2
45 C (113 F): Days	1	2	1936	2
90 F (32.2 C): Days	126	97	1901	56
100 F (37.8 C): Days	58	46	1936	6
110 F (43.3 C): Days	2	6	1936	6
0 C (32 F): Ice days (max	126	42	1985	6
0 C (32 F): Frost days (min	123	129	2013	33
-10 C (14 F): Days with min	123	48	1978	4
-20 C (-4 F): Days with min	61	15	1977	1
-30 C (-22 F): Days with min	2	1	1899	1
20 C (68 F): Tropical nights (min	123	68	2002	60
25 C (77 F): Days with min	51	11	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	125	53	2011	8
25 mm (0.98 in): Days with 25 mm or more rain	125	22	1950	2
50 mm (1.97 in): Days with 50 mm or more rain	109	6	1950	3
100 mm (3.94 in): Days with 100 mm or more rain	14	2	1919	1
10 cm (3.9 in): Days with 10 cm or more snowfall	62	5	1979	1
25 cm (9.8 in): Days with 25 cm or more snowfall	5	1	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 1896.

Download the Data

Data for Mt Vernon 3 NE 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).

Mt Vernon 3 NE Threshold Days by Year (USC00115943)

Key Facts for Mt Vernon 3 NE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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