Average September Temperature in Salmon by Year

This page contains a list of the average monthly high and low temperatures in Salmon, Idaho for the month of September each year between 1968 and 2023. It is based on NOAA data.

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What Was the Hottest September Ever in Salmon?

1990 was the warmest September in the history of Salmon, Idaho. The average daily high temperature was 83.5 °F, and the average low was 43.2 °F.

What Was the Coldest September Ever in Salmon?

1970 was the coolest September in the history of Salmon, Idaho. The average daily high temperature was 67.9 °F, and the average low was 36.8 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	19	75.3	41.8
2022	10	79.4	40.3
2021	35	78.0	36.6
2020	38	76.9	36.8
2019	15	74.5	43.6
2018	39	74.5	38.5
2017	44	69.1	41.3
2016	48	69.4	40.3
2015	33	73.5	41.3
2014	32	73.6	41.2
2013	17	72.8	44.5
2012	36	74.7	39.3
2011	14	77.7	40.6
2010	40	71.6	40.2
2009	6	80.2	41.8
2008	46	71.9	38.0
2007	41	71.1	40.5
2006	45	71.5	38.8
2004	47	69.5	40.3
2003	18	75.0	42.3
2002	29	74.3	40.9
1999	28	74.7	40.5
1998	3	77.9	46.8
1997	4	78.9	44.6
1996	23	74.4	41.4
1995	12	75.9	42.8
1994	5	81.3	41.2
1993	24	77.8	38.0
1992	37	74.9	39.1
1991	7	78.7	42.5
1990	1	83.5	43.2
1989	22	77.7	38.4
1988	27	76.7	38.8
1987	8	80.9	40.1
1986	52	66.2	41.1
1985	50	68.0	40.0
1984	43	72.6	38.4
1983	31	74.3	40.7
1982	26	73.7	41.9
1981	9	78.9	41.8
1980	16	75.2	42.8
1979	2	84.6	41.7
1978	25	74.0	41.8
1977	34	73.5	41.2
1976	13	76.7	41.9
1975	20	78.6	37.8
1974	11	80.4	38.6
1973	30	74.0	41.0
1972	49	72.1	37.2
1971	51	70.5	37.0
1970	53	67.9	36.8
1969	21	76.6	39.7
1968	42	71.3	39.9

Weather Station Details

Years	Station	Coordinates
1967–2024	Salmon KSRA	location