Idaho Falls September Precipitation Totals

A time series of total precipitation in the month of September in Idaho Falls, Idaho from 1948–2023.

Rainiest September in Idaho Falls History

The rainiest September in Idaho Falls, Idaho history happened in 2017, with 2.90 inches of total precipitation.

Driest September in Idaho Falls History

There have been 4 times where no rain was recorded in Idaho Falls, Idaho for the entire month of September. The most recent time this happened was 2018.

Idaho Falls Average September Precipitation by Year

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Year	Precipitation (inches)
2023	1.10
2022	1.09
2021	0.41
2020	0.78
2019	2.10
2018	0.00
2017	2.90
2016	1.78
2015	0.52
2014	2.49
2012	0.19
2011	0.20
2010	0.27
2009	0.85
2008	0.36
2007	0.57
2006	1.89
2005	1.35
2004	0.64
2003	0.52
2002	0.42
2001	0.83
2000	0.76
1999	0.12
1998	1.84
1993	0.36
1992	0.47
1991	0.41
1990	0.29
1989	1.19
1988	0.08
1987	0.00
1986	1.55
1985	1.75
1984	0.14
1983	1.41
1982	1.82
1981	0.12
1980	1.14
1979	0.10
1978	1.97
1977	0.62
1976	0.71
1975	0.00
1974	0.00
1973	2.16
1972	0.52
1971	1.39
1970	0.73
1969	0.80
1968	0.69
1967	0.20
1966	0.97
1965	1.47
1964	0.02
1963	0.88
1962	0.48
1961	2.70
1960	0.35
1959	1.26
1958	0.55
1957	0.02
1956	0.12
1955	0.30
1954	0.13
1953	0.07
1952	0.20
1951	0.19
1950	1.27
1949	0.85
1948	1.33

Notes

Its possible for precipitation totals to include both rain and melted snowfall
Months with more than 10% missing data are excluded