Guam October 31 Weather Records

Daily averages and all-time records for weather in Guam for the date of October 31 (Halloween).

October 31 All-Time Records
1945–2024

92 °F

70 °F

78 °F

Highest daily low

82 °F

1.67 inches

Most snow

none

October 31 Average Weather
1991–2020 ¹

Average high

87.6 °F

Average low

77.1 °F

Chance precipitation

78.6%

Chance snow

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	87	79	0.33	0.0
2022	86	76	0.20	0.0
2021	82	75	1.29	0.0
2020	87	76	0.09	0.0
2019	90	80	0.04	0.0
2018	90	82	0.00	0.0
2017	89	79	0.00	0.0
2016	88	79	1.00	0.0
2015	89	81	0.00	0.0
2014	87	77	0.03	0.0
2013	90	78	0.22	0.0
2012	89	78	0.00	0.0
2011	86	77	0.07	0.0
2010	89	77	1.54	0.0
2009	86	77	0.00	0.0
2008	87	77	0.52	0.0
2007	88	74	0.58	0.0
2006	89	78	0.08	0.0
2005	87	78	0.18	0.0
2004	89	79	0.03	0.0
2003	89	77	0.13	0.0
2002	89	77	0.55	0.0
2001	89	77	0.00	0.0
2000	87	79	0.00	0.0
1999	88	78	0.18	0.0
1998	89	76	0.44	0.0
1997	90	79	0.00	0.0
1996	87	78	0.04	0.0
1995	86	74	1.67	0.0
1994	88	78	0.00	0.0
1993	89	76	0.00	0.0
1992	88	78	0.00	0.0
1991	89	74	0.33	0.0
1990	85	75	0.35	0.0
1989	89	76	0.00	0.0
1988	89	79	0.16	0.0
1987	89	76	0.07	0.0
1986	86	70	0.88	0.0
1985	90	75	0.15	0.0
1984	91	77	0.14	0.0
1983	91	77	0.34	0.0
1982	90	75	0.27	0.0
1981	86	78	0.23	0.0
1980	83	77	0.92	0.0
1979	90	77	0.13	0.0
1978	84	78	0.30	0.0
1977	85	75	0.37	0.0
1976	85	76	1.25	0.0
1975	86	77	0.01	0.0
1974	85	80	0.57	0.0
1973	86	77	0.45	0.0
1972	85	73	0.03	0.0
1971	89	79	0.03	0.0
1970	89	80	0.01	0.0
1969	90	76	0.00	0.0
1968	89	77	0.10	0.0
1967	87	77	0.20	0.0
1966	92	75	0.09	0.0
1965	87	77	0.26	0.0
1964	89	76	0.08	0.0
1963	87	75	0.00	0.0
1962	89	77	0.00	0.0
1961	85	74	0.47	0.0
1960	85	76	0.69	0.0
1959	87	78	0.09	0.0
1958	87	79	0.02	0.0
1957	87	77	1.19	0.0
1956	86	77	0.02	n/a
1955	86	79	0.06	n/a
1954	78	75	1.06	n/a
1953	87	78	0.00	n/a
1952	85	76	0.08	n/a
1951	88	78	0.00	n/a
1950	85	74	0.49	n/a
1949	83	76	0.03	n/a
1948	83	76	0.03	n/a
1947	86	78	0.21	n/a
1946	n/a	n/a	n/a	n/a
1945	85	78	0.00	n/a

What's the all-time high for Guam on 10/31?

For the date of Oct 31, the highest temperature ever reached in Guam history is 92 °F which happened in 1966.

Highest Temperatures in Guam on October 31

What's the all-time low for Guam on 10/31?

For the date of Oct 31, the lowest temperature ever reached in Guam history is 70 °F which happened in 1986.

Lowest Temperatures in Guam on October 31

Lowest High Temperatures in Guam on October 31

What's the most it has ever rained in Guam on 10/31?

For the date of Oct 31, the most precipitation ever recorded in Guam history is 1.67 inches which happened in 1995.

All-Time Most Precipitation in Guam on October 31

Weather Station Details

Years	Station	Coordinates
1945–2024	Guam International Airport	location