Guam October 20 Weather Records

Daily averages and all-time records for weather in Guam for the date of October 20.

October 20 All-Time Records
1945–2024

91 °F

73 °F

81 °F

Highest daily low

81 °F

3.05 inches

Most snow

none

October 20 Average Weather
1991–2020 ¹

Average high

87.4 °F

Average low

76.9 °F

Chance precipitation

80.8%

Chance snow

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	87	76	0.01	0.0
2022	88	78	0.31	0.0
2021	89	74	1.95	0.0
2020	87	75	0.50	0.0
2019	88	78	0.03	0.0
2018	88	78	0.08	0.0
2017	90	77	0.00	0.0
2016	89	80	0.22	0.0
2015	88	76	1.45	0.0
2014	91	77	0.00	0.0
2013	87	79	0.12	0.0
2012	89	79	0.31	0.0
2011	84	76	0.51	0.0
2010	87	77	0.08	0.0
2009	89	76	0.24	0.0
2008	88	79	0.04	0.0
2007	87	77	0.08	0.0
2006	87	75	0.00	0.0
2005	86	75	0.00	0.0
2004	87	77	0.31	0.0
2003	86	77	0.41	0.0
2002	88	73	0.00	0.0
2001	89	75	0.17	0.0
2000	86	76	0.02	0.0
1999	87	77	0.37	0.0
1998	86	77	0.65	0.0
1997	86	75	0.28	0.0
1996	89	77	0.00	0.0
1995	90	75	0.08	0.0
1994	90	76	0.04	0.0
1993	88	76	0.01	0.0
1992	84	74	0.68	0.0
1991	88	75	1.07	0.0
1990	87	75	0.17	0.0
1989	90	75	0.00	0.0
1988	91	79	0.09	0.0
1987	88	75	0.39	0.0
1986	90	79	0.00	0.0
1985	88	74	0.18	0.0
1984	88	77	0.50	0.0
1983	90	77	0.42	0.0
1982	87	77	0.38	0.0
1981	89	77	0.00	0.0
1980	88	77	0.03	0.0
1979	90	76	0.04	0.0
1978	87	80	0.00	0.0
1977	81	76	1.96	0.0
1976	87	79	0.00	0.0
1975	86	77	0.12	0.0
1974	88	79	0.12	0.0
1973	87	77	0.00	0.0
1972	85	75	0.03	0.0
1971	87	81	0.02	0.0
1970	91	78	0.00	0.0
1969	91	75	0.01	0.0
1968	89	76	0.00	0.0
1967	81	74	3.05	0.0
1966	88	74	0.06	0.0
1965	88	73	0.00	0.0
1964	89	75	0.05	0.0
1963	85	74	0.59	0.0
1962	87	76	0.24	0.0
1961	84	77	0.50	0.0
1960	84	74	0.00	0.0
1959	88	77	0.03	0.0
1958	85	76	0.37	0.0
1957	86	78	0.00	0.0
1956	87	77	0.05	n/a
1955	90	75	0.15	n/a
1954	88	77	0.28	n/a
1953	89	75	0.37	n/a
1952	87	76	0.01	n/a
1951	89	77	0.00	n/a
1950	86	76	0.07	n/a
1949	86	75	0.26	n/a
1948	87	76	0.00	n/a
1947	84	77	0.21	n/a
1946	n/a	n/a	n/a	n/a
1945	87	76	0.00	n/a

What's the all-time high for Guam on 10/20?

For the date of Oct 20, the highest temperature ever reached in Guam history is 91 °F which has happened 4 times, most recently in 2014.

Highest Temperatures in Guam on October 20

What's the all-time low for Guam on 10/20?

For the date of Oct 20, the lowest temperature ever reached in Guam history is 73 °F which has happened 2 times, most recently in 2002.

Lowest Temperatures in Guam on October 20

Lowest High Temperatures in Guam on October 20

What's the most it has ever rained in Guam on 10/20?

For the date of Oct 20, the most precipitation ever recorded in Guam history is 3.05 inches which happened in 1967.

All-Time Most Precipitation in Guam on October 20

Weather Station Details

Years	Station	Coordinates
1945–2024	Guam International Airport	location