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Guam October Precipitation Totals

A time series of total precipitation in the month of October in Guam from 1945–2023.

Rainiest October in Guam History

The rainiest October in Guam history happened in 2021, with 26.68 inches of total precipitation.

Driest October in Guam History

The driest October in Guam history happened in 1976, with just 4.27 inches of total precipitation.

Guam Average October Precipitation by Year

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Year	Precipitation (inches)
2023	17.40
2022	17.12
2021	26.68
2020	16.75
2019	10.60
2018	8.87
2017	18.47
2016	13.14
2015	14.26
2014	18.77
2013	22.66
2012	10.56
2011	15.45
2010	13.54
2009	11.13
2008	7.21
2007	14.44
2006	15.39
2005	12.10
2004	9.87
2003	12.65
2002	7.02
2001	11.48
2000	11.40
1999	7.98
1998	9.64
1997	10.14
1996	9.37
1995	17.74
1994	11.12
1993	14.40
1992	12.74
1991	10.77
1990	7.25
1989	17.45
1988	17.71
1987	12.41
1986	17.34
1985	7.97
1984	8.87
1983	7.95
1982	15.08
1981	12.05
1980	11.08
1979	25.25
1978	10.14
1977	15.47
1976	4.27
1975	12.04
1974	11.08
1973	15.55
1972	5.32
1971	7.27
1970	8.11
1969	18.19
1968	17.71
1967	13.64
1966	6.53
1965	7.48
1964	9.05
1963	16.82
1962	11.29
1961	16.21
1960	10.32
1959	8.36
1958	10.91
1957	13.59
1956	9.20
1955	9.27
1954	12.90
1953	26.47
1952	13.37
1951	16.82
1950	14.07
1949	12.65
1948	13.32
1947	14.64
1945	11.16

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