Guam September 15 Weather Records

Daily averages and all-time records for weather in Guam for the date of September 15.

September 15 All-Time Records
1945–2024

91 °F

71 °F

82 °F

Highest daily low

80 °F

8.20 inches

Most snow

none

September 15 Average Weather
1991–2020 ¹

Average high

87.2 °F

Average low

76.4 °F

Chance precipitation

83.1%

Chance snow

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	90	78	0.03	0.0
2022	84	75	1.00	0.0
2021	86	76	0.57	0.0
2020	90	76	0.04	0.0
2019	83	73	8.20	0.0
2018	90	78	0.70	0.0
2017	87	76	0.24	0.0
2016	89	78	0.04	0.0
2015	87	76	0.91	0.0
2014	84	77	0.52	0.0
2013	89	75	0.11	0.0
2012	90	78	0.00	0.0
2011	88	77	0.00	0.0
2010	87	75	0.04	0.0
2009	86	78	0.56	0.0
2008	88	75	0.00	0.0
2007	88	78	0.00	0.0
2006	89	77	0.00	0.0
2005	87	77	0.02	0.0
2004	88	73	0.00	0.0
2003	86	77	0.10	0.0
2002	88	75	0.10	0.0
2001	88	76	0.00	0.0
2000	88	76	0.09	0.0
1999	86	73	0.38	0.0
1998	88	74	0.30	0.0
1997	87	78	0.41	0.0
1996	85	75	0.75	0.0
1995	83	73	1.71	0.0
1994	85	73	1.89	0.0
1993	89	75	0.02	0.0
1992	85	75	0.57	0.0
1991	84	75	0.94	0.0
1990	89	75	0.08	0.0
1989	87	75	0.00	0.0
1988	90	72	1.06	0.0
1987	87	77	0.00	0.0
1986	83	76	1.40	0.0
1985	88	76	0.59	0.0
1984	91	78	0.14	0.0
1983	91	75	2.26	0.0
1982	85	77	0.35	0.0
1981	89	77	0.21	0.0
1980	87	76	0.25	0.0
1979	90	76	0.97	0.0
1978	86	78	0.06	0.0
1977	82	74	1.75	0.0
1976	86	76	0.00	0.0
1975	82	77	0.21	0.0
1974	85	80	0.00	0.0
1973	84	76	0.77	0.0
1972	88	75	0.23	0.0
1971	89	78	0.00	0.0
1970	86	75	0.78	0.0
1969	91	77	0.52	0.0
1968	90	75	0.00	0.0
1967	85	72	1.39	0.0
1966	89	77	0.07	0.0
1965	87	75	0.01	0.0
1964	88	77	0.14	0.0
1963	87	76	0.40	0.0
1962	90	74	0.34	0.0
1961	86	76	0.00	0.0
1960	83	78	0.14	0.0
1959	88	77	0.09	0.0
1958	86	77	0.32	0.0
1957	88	76	1.24	0.0
1956	82	71	0.78	n/a
1955	86	77	0.27	n/a
1954	84	73	1.92	n/a
1953	86	77	0.17	n/a
1952	88	77	0.01	n/a
1951	88	78	0.00	n/a
1950	86	75	0.45	n/a
1949	86	74	0.17	n/a
1948	85	76	0.06	n/a
1947	90	78	0.02	n/a
1946	n/a	n/a	n/a	n/a
1945	86	76	0.10	n/a

What's the all-time high for Guam on 9/15?

For the date of Sep 15, the highest temperature ever reached in Guam history is 91 °F which has happened 3 times, most recently in 1984.

Highest Temperatures in Guam on September 15

What's the all-time low for Guam on 9/15?

For the date of Sep 15, the lowest temperature ever reached in Guam history is 71 °F which happened in 1956.

Lowest Temperatures in Guam on September 15

Lowest High Temperatures in Guam on September 15

What's the most it has ever rained in Guam on 9/15?

For the date of Sep 15, the most precipitation ever recorded in Guam history is 8.20 inches which happened in 2019.

All-Time Most Precipitation in Guam on September 15

Weather Station Details

Years	Station	Coordinates
1945–2024	Guam International Airport	location