Oregon Threshold Days by Year (USC00236357)

19 fixed thresholds counted per year at Oregon (USC00236357): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Oregon Thresholds

Oregon: nights with a minimum temperature at or below 0 C (32 F) in 108 years, most in 1911 with 158.
Oregon: nights with a minimum temperature at or below -10 C (14 F) in 108 years, most in 1978 with 71.
Oregon: nights with a minimum temperature at or above 20 C (68 F) in 108 years, most in 1954 with 65.
Oregon: days with a maximum temperature at or above 30 C (86 F) in 107 years, most in 1939 with 107.
19 fixed thresholds have at least one qualifying day at Oregon.

Days at or above 30 C (86 F)

107 years with a qualifying day

Days per year at Oregon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 107 in 1939.

Days at or above 30 C (86 F) per year at Oregon
Year	Days	Decade average
1893	61	65.5
1894	85	65.5
1895	63	65.5
1896	44	65.5
1897	75	65.5
1898	65	65.5
1900	75	54.3
1903	29	54.3
1904	48	54.3
1905	47	54.3
1906	51	54.3
1907	64	54.3
1908	54	54.3
1909	66	54.3
1910	70	63.4
1911	95	63.4
1912	69	63.4
1913	83	63.4
1914	76	63.4
1915	7	63.4
1916	56	63.4
1917	38	63.4
1918	74	63.4
1919	66	63.4
1920	46	61.1
1921	85	61.1
1922	53	61.1
1923	40	61.1
1924	31	61.1
1925	52	61.1
1927	82	61.1
1928	75	61.1
1929	86	61.1
1930	91	95
1931	106	95
1932	84	95
1933	103	95
1934	102	95
1935	68	95
1936	100	95
1937	89	95
1938	100	95
1939	107	95
1940	81	69.6
1941	82	69.6
1942	79	69.6
1943	85	69.6
1944	74	69.6
1945	50	69.6
1946	60	69.6
1947	72	69.6
1948	57	69.6
1949	56	69.6
1950	45	68
1951	36	68
1952	67	68
1953	91	68
1954	82	68
1955	82	68
1956	104	68
1957	57	68
1958	51	68
1959	65	68
1960	56	55.9
1961	42	55.9
1962	52	55.9
1963	73	55.9
1964	60	55.9
1965	51	55.9
1967	53	55.9
1968	57	55.9
1969	59	55.9
1970	72	67.6
1971	72	67.6
1972	67	67.6
1973	62	67.6
1974	56	67.6
1975	73	67.6
1976	73	67.6
1977	62	67.6
1978	77	67.6
1979	62	67.6
1980	84	84
1993	48	49.7
1994	57	49.7
1995	58	49.7
1996	30	49.7
1997	56	49.7
1998	55	49.7
1999	44	49.7
2000	74	58.8
2001	62	58.8
2003	64	58.8
2004	46	58.8
2005	74	58.8
2006	60	58.8
2007	76	58.8
2008	44	58.8
2009	29	58.8
2011	64	59.8
2012	85	59.8
2013	53	59.8
2014	42	59.8
2015	39	59.8
2016	62	59.8
2017	59	59.8
2018	74	59.8

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

First to last qualifying date each year at Oregon
Year	First date	Last date
1893	1893-04-05	1893-10-24
1894	1894-04-26	1894-10-20
1895	1895-03-27	1895-09-21
1896	1896-04-10	1896-09-16
1897	1897-06-13	1897-10-24
1898	1898-04-16	1898-10-04
1900	1900-05-11	1900-10-04
1903	1903-06-18	1903-08-26
1904	1904-05-24	1904-09-28
1905	1905-04-09	1905-09-01
1906	1906-04-24	1906-09-16
1907	1907-03-21	1907-09-18
1908	1908-05-19	1908-10-14
1909	1909-05-05	1909-10-02
1910	1910-03-22	1910-10-12
1911	1911-05-08	1911-09-29
1912	1912-05-22	1912-10-05
1913	1913-04-30	1913-10-06
1914	1914-04-17	1914-09-06
1915	1915-05-12	1915-09-13
1916	1916-05-06	1916-09-10
1917	1917-06-11	1917-09-07
1918	1918-05-08	1918-10-04
1919	1919-06-08	1919-10-01
1920	1920-05-22	1920-10-04
1921	1921-05-19	1921-09-16
1922	1922-06-07	1922-10-03
1923	1923-06-17	1923-09-26
1924	1924-06-13	1924-09-07
1925	1925-05-20	1925-09-19
1927	1927-04-28	1927-10-28
1928	1928-03-22	1928-10-11
1929	1929-04-04	1929-10-16
1930	1930-04-09	1930-10-11
1931	1931-04-08	1931-10-10
1932	1932-05-13	1932-09-19
1933	1933-05-16	1933-09-25
1934	1934-04-10	1934-10-12
1935	1935-06-10	1935-09-24
1936	1936-04-13	1936-09-22
1937	1937-05-20	1937-10-29
1938	1938-05-01	1938-10-16
1939	1939-04-23	1939-10-24
1940	1940-03-31	1940-10-25
1941	1941-05-14	1941-09-23
1942	1942-04-04	1942-10-08
1943	1943-04-29	1943-10-10
1944	1944-05-12	1944-09-20
1945	1945-05-20	1945-09-23
1946	1946-03-31	1946-09-26
1947	1947-05-14	1947-10-06
1948	1948-04-18	1948-09-20
1949	1949-04-25	1949-10-08
1950	1950-04-22	1950-10-31
1951	1951-04-28	1951-09-11
1952	1952-05-02	1952-09-30
1953	1953-04-22	1953-10-18
1954	1954-04-06	1954-10-09
1955	1955-04-18	1955-09-22
1956	1956-04-01	1956-10-12
1957	1957-06-05	1957-09-02
1958	1958-05-21	1958-10-16
1959	1959-05-01	1959-09-20
1960	1960-04-22	1960-10-11
1961	1961-04-20	1961-09-09
1962	1962-05-05	1962-09-13
1963	1963-05-08	1963-10-19
1964	1964-04-16	1964-09-09
1965	1965-04-22	1965-10-10
1967	1967-04-17	1967-10-05
1968	1968-05-01	1968-09-03
1969	1969-05-05	1969-10-04
1970	1970-04-29	1970-10-01
1971	1971-05-06	1971-10-02
1972	1972-04-07	1972-09-25
1973	1973-05-19	1973-09-07
1974	1974-05-17	1974-09-19
1975	1975-04-18	1975-10-14
1976	1976-04-15	1976-10-04
1977	1977-05-26	1977-09-09
1978	1978-05-19	1978-10-22
1979	1979-05-18	1979-10-22
1980	1980-04-21	1980-10-10
1993	1993-05-28	1993-09-13
1994	1994-04-17	1994-09-30
1995	1995-06-07	1995-10-12
1996	1996-04-11	1996-08-21
1997	1997-05-17	1997-10-06
1998	1998-04-25	1998-09-26
1999	1999-06-04	1999-10-15
2000	2000-04-05	2000-09-23
2001	2001-04-09	2001-09-06
2003	2003-04-03	2003-10-21
2004	2004-04-17	2004-09-21
2005	2005-05-11	2005-10-05
2006	2006-04-14	2006-10-04
2007	2007-04-30	2007-10-08
2008	2008-05-02	2008-09-28
2009	2009-05-22	2009-08-16
2011	2011-04-04	2011-10-05
2012	2012-04-01	2012-09-12
2013	2013-05-15	2013-10-05
2014	2014-05-08	2014-10-26
2015	2015-06-08	2015-09-18
2016	2016-05-30	2016-10-18
2017	2017-03-20	2017-10-03
2018	2018-05-09	2018-10-04

Every Fixed Threshold

Fixed thresholds at Oregon
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	107	107	1939	74
35 C (95 F): Days	101	66	1934	13
40 C (104 F): Days	23	35	1934	4
90 F (32.2 C): Days	107	89	1934	51
100 F (37.8 C): Days	47	49	1934	10
110 F (43.3 C): Days	3	9	1934	3
0 C (32 F): Ice days (max	107	66	1978	43
0 C (32 F): Frost days (min	108	158	1911	132
-10 C (14 F): Days with min	108	71	1978	42
-20 C (-4 F): Days with min	97	24	1936	5
-30 C (-22 F): Days with min	2	3	1905	1
20 C (68 F): Tropical nights (min	108	65	1954	48
25 C (77 F): Days with min	51	22	1934	2
10 mm (0.39 in): Days with 10 mm or more rain	92	48	1973	26
25 mm (0.98 in): Days with 25 mm or more rain	92	19	1977	16
50 mm (1.97 in): Days with 50 mm or more rain	84	6	1915	5
100 mm (3.94 in): Days with 100 mm or more rain	16	2	1973	1
10 cm (3.9 in): Days with 10 cm or more snowfall	54	5	1940	1
25 cm (9.8 in): Days with 25 cm or more snowfall	6	1	1921	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

Data for Oregon 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Oregon Threshold Days by Year (USC00236357)

Key Facts for Oregon Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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