Guam December 18 Weather Records

Daily averages and all-time records for weather in Guam for the date of December 18.

December 18 All-Time Records
1945–2024

90 °F

71 °F

82 °F

Highest daily low

82 °F

1.27 inches

Most snow

none

December 18 Average Weather
1991–2020 ¹

Average high

86.7 °F

Average low

76.7 °F

Chance precipitation

71.5%

Chance snow

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	85	77	0.26	0.0
2022	86	79	0.01	0.0
2021	87	75	0.09	0.0
2020	86	77	0.18	0.0
2019	88	78	0.00	0.0
2018	90	82	0.00	0.0
2017	89	80	0.12	0.0
2016	87	75	0.24	0.0
2015	88	78	0.00	0.0
2014	90	79	0.05	0.0
2013	87	76	0.00	0.0
2012	89	81	0.00	0.0
2011	88	76	0.27	0.0
2010	88	74	0.02	0.0
2009	87	76	0.00	0.0
2008	85	74	0.19	0.0
2007	87	79	0.04	0.0
2006	86	77	0.13	0.0
2005	86	77	0.02	0.0
2004	85	73	0.07	0.0
2003	88	77	0.37	0.0
2002	86	76	0.06	0.0
2001	87	78	0.07	0.0
2000	87	75	1.02	0.0
1999	86	78	0.00	0.0
1998	87	79	0.00	0.0
1997	85	77	0.13	0.0
1996	86	78	0.30	0.0
1995	87	76	0.42	0.0
1994	84	78	0.00	0.0
1993	87	77	0.01	0.0
1992	86	77	0.00	0.0
1991	87	74	0.04	0.0
1990	86	74	0.00	0.0
1989	88	75	0.10	0.0
1988	89	78	0.02	0.0
1987	88	75	0.21	0.0
1986	83	74	0.43	0.0
1985	83	71	0.71	0.0
1984	87	77	0.07	0.0
1983	87	77	0.09	0.0
1982	86	75	0.77	0.0
1981	85	79	0.31	0.0
1980	86	79	0.04	0.0
1979	86	75	0.07	0.0
1978	84	75	0.14	0.0
1977	84	76	0.00	0.0
1976	86	77	0.04	0.0
1975	87	77	0.00	0.0
1974	85	80	0.01	0.0
1973	85	79	0.00	0.0
1972	87	76	0.06	0.0
1971	88	78	0.03	0.0
1970	84	76	0.78	0.0
1969	82	77	0.99	0.0
1968	88	77	0.03	0.0
1967	85	75	0.00	0.0
1966	84	77	0.33	0.0
1965	87	72	0.18	0.0
1964	87	73	0.00	0.0
1963	86	73	0.00	0.0
1962	87	76	1.27	0.0
1961	82	76	0.39	0.0
1960	84	76	0.23	0.0
1959	85	78	0.00	0.0
1958	85	75	0.00	0.0
1957	85	77	0.00	0.0
1956	85	75	0.07	n/a
1955	83	75	0.07	n/a
1954	84	74	0.34	n/a
1953	86	76	0.00	n/a
1952	85	75	0.30	n/a
1951	83	73	0.01	n/a
1950	85	73	0.34	n/a
1949	86	75	0.00	n/a
1948	83	72	0.04	n/a
1947	87	77	0.33	n/a
1946	n/a	n/a	n/a	n/a
1945	85	74	0.13	n/a

What's the all-time high for Guam on 12/18?

For the date of Dec 18, the highest temperature ever reached in Guam history is 90 °F which has happened 2 times, most recently in 2018.

Highest Temperatures in Guam on December 18

What's the all-time low for Guam on 12/18?

For the date of Dec 18, the lowest temperature ever reached in Guam history is 71 °F which happened in 1985.

Lowest Temperatures in Guam on December 18

Lowest High Temperatures in Guam on December 18

What's the most it has ever rained in Guam on 12/18?

For the date of Dec 18, the most precipitation ever recorded in Guam history is 1.27 inches which happened in 1962.

All-Time Most Precipitation in Guam on December 18

Weather Station Details

Years	Station	Coordinates
1945–2024	Guam International Airport	location