Average August Temperature in Idaho Falls by Year

This page contains a list of the average monthly high and low temperatures in Idaho Falls, Idaho for the month of August each year between 1948 and 2023. It is based on NOAA data.

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What Was the Hottest August Ever in Idaho Falls?

2022 was the warmest August in the history of Idaho Falls, Idaho. The average daily high temperature was 90.5 °F, and the average low was 53.4 °F.

What Was the Coldest August Ever in Idaho Falls?

1968 was the coolest August in the history of Idaho Falls, Idaho. The average daily high temperature was 75.5 °F, and the average low was 49.6 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	10	85.3	53.8
2022	1	90.5	53.4
2021	44	82.8	49.1
2020	13	87.9	50.4
2019	35	86.7	47.5
2018	45	85.0	46.4
2017	32	86.1	48.4
2016	48	86.4	44.7
2015	30	85.2	49.5
2014	46	80.6	50.6
2012	9	89.8	49.6
2011	21	88.0	48.6
2010	41	84.6	47.8
2009	42	84.1	48.0
2008	38	86.2	47.4
2007	25	86.3	49.2
2006	59	84.1	44.7
2005	49	84.8	46.3
2004	63	82.0	46.1
2003	16	87.6	50.0
2002	68	83.0	43.7
2001	19	89.4	47.6
2000	27	87.5	47.9
1999	43	85.4	46.6
1998	18	88.6	48.4
1993	70	79.4	46.0
1992	34	86.0	48.3
1991	4	88.7	52.0
1990	36	85.2	49.0
1989	52	82.3	48.2
1988	31	86.9	47.6
1987	56	83.3	46.6
1986	24	86.6	49.2
1985	60	82.5	45.8
1984	23	83.0	53.1
1983	2	87.5	55.6
1982	15	87.2	50.5
1981	14	88.3	49.7
1980	66	79.8	47.0
1979	50	82.2	48.8
1978	65	81.8	45.5
1977	47	82.6	48.5
1976	67	79.9	46.9
1975	64	81.0	46.4
1974	58	82.5	47.0
1973	33	84.2	50.2
1972	28	85.1	50.2
1971	7	87.9	51.9
1970	6	88.4	51.6
1969	8	89.3	50.2
1968	71	75.5	49.6
1967	17	88.4	49.2
1966	39	84.8	48.7
1965	61	80.7	47.6
1964	69	81.0	45.1
1963	11	87.9	51.2
1962	53	83.1	47.4
1961	5	87.8	52.9
1960	62	82.0	46.2
1959	37	83.7	50.4
1958	3	87.5	53.6
1957	29	84.9	50.3
1956	54	82.4	47.8
1955	12	86.6	51.6
1954	55	82.4	47.8
1953	22	86.0	50.3
1952	26	85.3	50.1
1951	57	80.3	49.2
1950	51	83.6	47.0
1949	20	86.5	50.3
1948	40	84.3	49.2

Weather Station Details

Years	Station	Coordinates
1948–2024	Idaho Falls Fanning Field	location