Guam July 21 Weather Records

Daily averages and all-time records for weather in Guam for the date of July 21.

July 21 All-Time Records
1945–2024

92 °F

71 °F

81 °F

Highest daily low

81 °F

4.88 inches

Most snow

none

July 21 Average Weather
1991–2020 ¹

Average high

87.7 °F

Average low

76.9 °F

Chance precipitation

82.6%

Chance snow

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	88	79	0.00	0.0
2022	84	75	2.48	0.0
2021	85	75	0.61	0.0
2020	89	78	0.04	0.0
2019	89	78	0.00	0.0
2018	88	80	0.33	0.0
2017	88	81	0.01	0.0
2016	88	77	0.03	0.0
2015	87	76	0.60	0.0
2014	86	75	4.88	0.0
2013	91	78	0.14	0.0
2012	89	76	0.00	0.0
2011	88	79	0.40	0.0
2010	88	77	0.79	0.0
2009	86	74	0.51	0.0
2008	88	75	0.01	0.0
2007	88	77	0.03	0.0
2006	84	77	0.11	0.0
2005	82	74	2.25	0.0
2004	87	76	0.40	0.0
2003	86	77	0.54	0.0
2002	81	76	1.84	0.0
2001	87	76	0.18	0.0
2000	83	75	0.14	0.0
1999	86	73	0.18	0.0
1998	88	76	1.45	0.0
1997	88	80	0.00	0.0
1996	88	75	0.00	0.0
1995	88	77	0.06	0.0
1994	92	77	2.65	0.0
1993	91	78	0.37	0.0
1992	88	75	0.06	0.0
1991	88	75	0.17	0.0
1990	90	75	0.35	0.0
1989	88	72	0.86	0.0
1988	90	74	0.47	0.0
1987	89	75	0.05	0.0
1986	88	74	0.00	0.0
1985	89	74	0.09	0.0
1984	90	76	0.15	0.0
1983	86	74	2.18	0.0
1982	88	77	0.16	0.0
1981	91	78	0.00	0.0
1980	89	77	0.18	0.0
1979	90	76	0.04	0.0
1978	84	78	0.03	0.0
1977	84	79	0.19	0.0
1976	83	77	1.56	0.0
1975	84	77	0.40	0.0
1974	85	77	0.00	0.0
1973	87	78	0.45	0.0
1972	87	78	0.00	0.0
1971	88	78	0.34	0.0
1970	85	76	0.20	0.0
1969	92	75	0.46	0.0
1968	85	72	1.71	0.0
1967	83	71	1.73	0.0
1966	90	78	0.11	0.0
1965	87	76	0.17	0.0
1964	88	77	0.03	0.0
1963	84	76	0.21	0.0
1962	86	76	1.85	0.0
1961	85	77	0.33	0.0
1960	85	76	0.95	0.0
1959	87	77	0.09	0.0
1958	84	77	0.24	0.0
1957	87	79	0.00	0.0
1956	88	78	0.02	n/a
1955	85	78	0.18	n/a
1954	89	77	0.00	n/a
1953	89	78	0.03	n/a
1952	87	76	0.12	n/a
1951	88	76	0.07	n/a
1950	86	73	0.50	n/a
1949	86	75	0.00	n/a
1948	88	76	0.12	n/a
1947	87	76	0.47	n/a
1946	n/a	n/a	n/a	n/a

What's the all-time high for Guam on 7/21?

For the date of Jul 21, the highest temperature ever reached in Guam history is 92 °F which has happened 2 times, most recently in 1994.

Highest Temperatures in Guam on July 21

What's the all-time low for Guam on 7/21?

For the date of Jul 21, the lowest temperature ever reached in Guam history is 71 °F which happened in 1967.

Lowest Temperatures in Guam on July 21

Lowest High Temperatures in Guam on July 21

What's the most it has ever rained in Guam on 7/21?

For the date of Jul 21, the most precipitation ever recorded in Guam history is 4.88 inches which happened in 2014.

All-Time Most Precipitation in Guam on July 21

Weather Station Details

Years	Station	Coordinates
1945–2024	Guam International Airport	location