Oregon September Temperature by Year

This page is a list of the average statewide temperature in the month of September in Oregon for each year from 1895–2023. It is a statewide average over the entire territory of the state, based on data from the NOAA.

State:

Month:

What Was the Hottest September in Oregon History?

2020 was the warmest September in Oregon history. Statewide, the average daily high temperature was 77.8 °F, and the average low was 47.4 °F.

What Was the Coldest September in Oregon History?

1895 was the coolest September in Oregon history. Statewide, the average daily high temperature was 62.4 °F, and the average low was 40.6 °F.

Click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	67	70.8	44.6
2022	3	77.2	47.9
2021	30	74.6	44.2
2020	1	77.8	47.4
2019	81	68.5	44.6
2018	68	72.8	42.1
2017	27	73.2	46.1
2016	74	71.5	42.7
2015	57	72.8	43.4
2014	16	75.2	46.2
2013	50	70.4	46.1
2012	8	78.3	45.2
2011	1	78.5	46.6
2010	48	72.6	44.5
2009	11	77.4	45.5
2008	30	75.5	43.3
2007	81	71.4	41.8
2006	33	74.8	43.4
2005	86	71.6	41.0
2004	86	69.9	42.7
2003	14	76.5	45.6
2002	41	74.5	43.1
2001	16	76.4	45.2
2000	70	71.2	43.2
1999	47	75.2	41.9
1998	7	76.6	47.2
1997	33	72.7	45.6
1996	93	70.3	41.5
1995	18	75.1	46.1
1994	12	76.4	46.1
1993	33	75.1	43.1
1992	62	72.6	43.2
1991	9	78.1	45.2
1990	4	77.7	47.1
1989	53	73.4	42.9
1988	57	74.0	42.2
1987	18	77.0	44.1
1986	124	63.8	41.3
1985	128	64.0	40.3
1984	89	69.9	42.4
1983	97	69.8	41.8
1982	93	68.2	43.6
1981	43	73.6	43.8
1980	48	72.5	44.4
1979	14	76.0	46.1
1978	105	66.6	43.8
1977	90	67.7	44.3
1976	28	73.2	45.8
1975	28	76.2	42.8
1974	18	78.4	42.9
1973	62	71.4	44.5
1972	116	67.8	40.4
1971	119	67.8	39.9
1970	119	68.0	39.5
1969	43	72.6	44.8
1968	62	71.6	44.2
1967	4	78.2	46.5
1966	25	74.1	46.0
1965	117	68.3	39.5
1964	102	70.3	40.3
1963	6	75.9	48.3
1962	30	74.5	44.2
1961	117	67.6	40.3
1960	37	74.7	43.2
1959	103	66.3	44.3
1958	70	71.1	43.3
1957	23	75.6	44.8
1956	57	73.6	42.7
1955	75	71.6	42.2
1954	98	69.8	41.6
1953	21	76.2	44.6
1952	21	76.3	44.6
1951	33	75.3	42.9
1950	66	72.3	43.4
1949	40	73.8	43.9
1948	99	69.5	41.6
1947	53	73.4	43.1
1946	99	69.9	41.2
1945	90	70.6	41.3
1944	37	74.3	43.7
1943	10	78.4	44.5
1942	50	74.1	42.5
1941	121	64.9	42.4
1940	53	69.0	47.4
1939	41	73.8	43.9
1938	13	75.8	46.7
1937	43	73.1	44.2
1936	80	72.2	41.1
1935	23	77.0	43.2
1934	78	72.1	41.4
1933	107	67.8	41.6
1932	50	75.5	41.2
1931	90	69.4	42.6
1930	75	70.1	43.8
1929	109	69.9	39.3
1928	70	72.6	41.7
1927	111	65.2	43.8
1926	127	66.1	38.5
1925	99	67.6	43.5
1924	78	71.9	41.8
1923	43	73.3	44.2
1922	37	75.3	42.7
1921	124	66.6	38.6
1920	84	68.6	44.2
1919	93	69.6	42.2
1918	26	73.3	46.4
1917	53	71.7	44.7
1916	86	70.9	41.8
1915	103	69.2	41.3
1914	113	67.2	41.5
1913	84	71.7	41.1
1912	122	66.9	39.7
1911	124	64.6	40.6
1910	111	68.3	40.7
1909	60	71.3	44.6
1908	81	71.5	41.7
1907	93	70.2	41.7
1906	68	71.5	43.2
1905	70	71.4	43.0
1904	62	72.7	43.1
1903	109	68.5	40.7
1902	106	71.5	38.7
1901	123	64.2	41.5
1900	115	66.2	42.2
1899	60	73.4	42.5
1898	75	70.8	42.9
1897	107	66.4	43.1
1896	114	67.9	40.7
1895	129	62.4	40.6