Guam, GU

13.483°N, 144.800°W · station GUMthr · 1945–2026 · 82 years · normal 98.5 in/yr

The Accumulation Ribbon

Every day of the year at Guam: how the rain adds up. The filled curve is the normal running total; the dashed lines are the wettest (1976) and driest (1998) years on record; the white line is 2026 so far.

Normal to date Wettest / driest year 2026 so far normal annual 98.5 in

All-Time Extremes

Driest year

57.9in

1998 · mean 92.8 in

Longest dry streak

18 days

< 0.01 in · ended 1977-12-23

Wettest day ever

19.67in

Dec 8, 2002

Wettest year

142.3in

1976 · mean 92.8 in

Longest wet streak

55 days

≥ 0.01 in · ended 1988-11-22

Wettest month ever

38.49in

Aug 1997

Records by Month

Month	Wettest day	Normal	Wettest month
Jan	7.43″ Jan 14, 1990	4.14″	18.09″ 1976
Feb	8.58″ Feb 26, 1980	2.72″	13.87″ 1980
Mar	3.81″ Mar 2, 2026	2.14″	14.40″ 2026
Apr	6.58″ Apr 14, 2026	2.55″	15.28″ 1963
May	18.49″ May 21, 1976	3.84″	34.65″ 1976
Jun	16.00″ Jun 27, 2004	5.41″	38.03″ 2004
Jul	12.64″ Jul 6, 2026	9.72″	29.80″ 2002
Aug	13.36″ Aug 28, 1992	13.56″	38.49″ 1997
Sep	10.19″ Sep 19, 2013	13.64″	32.24″ 2013
Oct	15.48″ Oct 15, 1953	12.25″	26.68″ 2021
Nov	6.90″ Nov 27, 2019	7.08″	20.33″ 2003
Dec	19.67″ Dec 8, 2002	4.87″	25.73″ 2002

Record Daily Rainfall

The heaviest one-day rainfall ever recorded on each calendar date — when Guam's big rains fall.

Year by Year

Driest years

1998	57.88 in
1973	59.14 in
1983	61.05 in
1959	61.62 in
1970	67.31 in

The Full Record

Every day of the year: normal daily precip, the record one-day total with its year, how often it rains, and the cumulative normal. Type to filter, click a column to sort.

Show me the data — the full daily record

Date	Normal	Record 1-day	Yr	Wet-day %	Cum. normal
Jan 1	0.15″	2.98″	1976	70%	0.15″
Jan 2	0.16″	0.77″	1946	59%	0.31″
Jan 3	0.17″	1.01″	1955	56%	0.47″
Jan 4	0.15″	3.34″	2009	66%	0.63″
Jan 5	0.16″	0.63″	1991	70%	0.79″
Jan 6	0.17″	1.66″	2013	60%	0.96″
Jan 7	0.17″	3.06″	2025	60%	1.13″
Jan 8	0.17″	2.97″	2023	65%	1.31″
Jan 9	0.18″	4.69″	1954	65%	1.48″
Jan 10	0.18″	1.35″	2002	66%	1.66″
Jan 11	0.19″	1.75″	2023	70%	1.85″
Jan 12	0.18″	3.17″	1988	66%	2.02″
Jan 13	0.17″	3.21″	1996	68%	2.20″
Jan 14	0.18″	7.43″	1990	68%	2.38″
Jan 15	0.19″	2.15″	1948	60%	2.57″
Jan 16	0.18″	1.09″	2012	62%	2.74″
Jan 17	0.17″	0.91″	1997	65%	2.91″
Jan 18	0.16″	1.94″	1963	52%	3.07″
Jan 19	0.16″	1.66″	1970	61%	3.23″
Jan 20	0.16″	1.66″	1975	52%	3.39″
Jan 21	0.15″	4.04″	1996	64%	3.54″
Jan 22	0.16″	3.27″	2014	60%	3.70″
Jan 23	0.16″	1.09″	1965	57%	3.86″
Jan 24	0.15″	1.51″	1970	54%	4.01″
Jan 25	0.16″	4.33″	1976	65%	4.17″
Jan 26	0.16″	3.25″	1976	62%	4.32″
Jan 27	0.15″	1.94″	1976	57%	4.48″
Jan 28	0.15″	2.13″	1963	62%	4.63″
Jan 29	0.14″	4.71″	2014	63%	4.77″
Jan 30	0.13″	1.54″	2014	66%	4.90″
Jan 31	0.14″	1.99″	1963	52%	5.05″
Feb 1	0.14″	1.64″	2011	51%	5.19″
Feb 2	0.14″	2.09″	1987	68%	5.33″
Feb 3	0.14″	2.53″	1962	62%	5.48″
Feb 4	0.14″	1.31″	2006	55%	5.62″
Feb 5	0.14″	0.47″	1985	48%	5.76″
Feb 6	0.13″	1.54″	2000	49%	5.89″
Feb 7	0.14″	2.93″	2026	59%	6.03″
Feb 8	0.15″	1.19″	1951	62%	6.18″
Feb 9	0.14″	2.63″	1971	58%	6.32″
Feb 10	0.13″	0.87″	2003	58%	6.45″
Feb 11	0.14″	1.24″	1984	59%	6.59″
Feb 12	0.14″	3.37″	1999	59%	6.73″
Feb 13	0.15″	1.76″	1989	61%	6.88″
Feb 14	0.14″	3.60″	1999	57%	7.02″
Feb 15	0.14″	3.49″	1999	56%	7.16″
Feb 16	0.15″	0.81″	1989	42%	7.31″
Feb 17	0.15″	1.04″	1989	50%	7.46″
Feb 18	0.14″	5.32″	1989	54%	7.61″
Feb 19	0.14″	1.40″	2008	60%	7.75″
Feb 20	0.14″	1.30″	1991	62%	7.89″
Feb 21	0.14″	0.93″	2004	56%	8.02″
Feb 22	0.13″	5.88″	1953	61%	8.15″
Feb 23	0.12″	4.21″	2019	66%	8.28″
Feb 24	0.13″	1.12″	2019	53%	8.40″
Feb 25	0.12″	2.40″	1968	57%	8.53″
Feb 26	0.12″	8.58″	1980	53%	8.65″
Feb 27	0.11″	2.58″	1986	59%	8.76″
Feb 28	0.11″	1.32″	2004	68%	8.87″
Feb 29	0.12″	2.06″	2008	68%	8.99″
Mar 1	0.12″	3.81″	2026	51%	9.11″
Mar 2	0.10″	0.84″	2014	58%	9.20″
Mar 3	0.10″	0.51″	1961	58%	9.30″
Mar 4	0.10″	0.64″	2000	56%	9.41″
Mar 5	0.10″	0.81″	2007	58%	9.51″
Mar 6	0.10″	1.42″	2026	52%	9.60″
Mar 7	0.09″	1.13″	2003	54%	9.70″
Mar 8	0.09″	0.83″	2008	63%	9.79″
Mar 9	0.09″	1.07″	1960	56%	9.88″
Mar 10	0.10″	2.03″	2003	58%	9.98″
Mar 11	0.10″	2.93″	2026	53%	10.08″
Mar 12	0.10″	1.79″	1974	52%	10.18″
Mar 13	0.10″	1.41″	1985	57%	10.29″
Mar 14	0.10″	1.11″	1974	53%	10.38″
Mar 15	0.09″	1.77″	1974	65%	10.48″
Mar 16	0.09″	1.44″	1971	58%	10.57″
Mar 17	0.09″	1.75″	1967	52%	10.66″
Mar 18	0.09″	1.43″	1967	56%	10.75″
Mar 19	0.09″	0.87″	1972	57%	10.83″
Mar 20	0.09″	0.68″	1975	42%	10.92″
Mar 21	0.09″	0.81″	1996	48%	11.01″
Mar 22	0.09″	0.89″	2012	51%	11.10″
Mar 23	0.09″	0.75″	2013	52%	11.19″
Mar 24	0.09″	1.31″	2026	57%	11.27″
Mar 25	0.09″	1.21″	1986	56%	11.36″
Mar 26	0.08″	1.03″	1984	54%	11.44″
Mar 27	0.08″	0.48″	1956	47%	11.52″
Mar 28	0.08″	2.21″	1976	62%	11.60″
Mar 29	0.09″	1.10″	1976	58%	11.69″
Mar 30	0.09″	0.87″	2011	62%	11.79″
Mar 31	0.09″	2.18″	2011	65%	11.88″
Apr 1	0.09″	1.09″	1994	56%	11.97″
Apr 2	0.09″	0.77″	1967	42%	12.05″
Apr 3	0.09″	1.53″	1996	50%	12.14″
Apr 4	0.09″	1.04″	1996	53%	12.23″
Apr 5	0.09″	2.47″	2018	62%	12.32″
Apr 6	0.09″	0.90″	2023	56%	12.41″
Apr 7	0.10″	1.29″	1976	50%	12.51″
Apr 8	0.09″	0.78″	1976	58%	12.60″
Apr 9	0.10″	0.49″	1980	58%	12.70″
Apr 10	0.10″	1.05″	1959	56%	12.81″
Apr 11	0.10″	2.42″	1948	64%	12.91″
Apr 12	0.10″	2.90″	2026	56%	13.01″
Apr 13	0.10″	6.58″	2026	69%	13.11″
Apr 14	0.10″	3.26″	2026	51%	13.20″
Apr 15	0.09″	1.01″	1988	56%	13.30″
Apr 16	0.11″	6.36″	1997	65%	13.40″
Apr 17	0.11″	2.61″	1981	68%	13.51″
Apr 18	0.12″	2.09″	1962	59%	13.64″
Apr 19	0.13″	1.68″	1989	60%	13.77″
Apr 20	0.13″	4.52″	1989	59%	13.90″
Apr 21	0.13″	0.58″	1967	62%	14.03″
Apr 22	0.13″	0.61″	1985	49%	14.16″
Apr 23	0.13″	2.52″	2017	63%	14.29″
Apr 24	0.13″	1.75″	1985	59%	14.42″
Apr 25	0.13″	1.97″	2017	67%	14.55″
Apr 26	0.13″	2.42″	1974	68%	14.68″
Apr 27	0.13″	5.83″	1963	67%	14.81″
Apr 28	0.13″	4.70″	1963	67%	14.94″
Apr 29	0.13″	2.89″	2003	54%	15.07″
Apr 30	0.14″	0.88″	2011	70%	15.21″
May 1	0.13″	2.55″	1963	59%	15.34″
May 2	0.12″	6.68″	1971	64%	15.46″
May 3	0.12″	2.34″	1971	64%	15.58″
May 4	0.12″	1.30″	1995	55%	15.70″
May 5	0.12″	0.93″	2009	59%	15.82″
May 6	0.11″	1.46″	1952	69%	15.93″
May 7	0.13″	2.19″	2004	66%	16.06″
May 8	0.13″	4.42″	1950	64%	16.19″
May 9	0.14″	1.01″	2000	52%	16.32″
May 10	0.14″	4.30″	1985	55%	16.46″
May 11	0.14″	2.09″	2020	57%	16.61″
May 12	0.15″	2.07″	1964	52%	16.75″
May 13	0.14″	1.34″	2026	54%	16.90″
May 14	0.15″	4.06″	2015	56%	17.04″
May 15	0.15″	2.28″	2015	55%	17.19″
May 16	0.15″	4.16″	2018	62%	17.35″
May 17	0.16″	3.39″	1977	66%	17.51″
May 18	0.16″	1.96″	1963	62%	17.67″
May 19	0.15″	1.41″	1994	66%	17.82″
May 20	0.16″	3.41″	1976	52%	17.98″
May 21	0.16″	18.49″	1976	57%	18.14″
May 22	0.14″	5.73″	1976	69%	18.28″
May 23	0.14″	9.53″	2023	48%	18.43″
May 24	0.14″	12.47″	2023	74%	18.57″
May 25	0.15″	1.40″	1976	64%	18.72″
May 26	0.16″	2.72″	2026	65%	18.88″
May 27	0.17″	0.87″	1989	66%	19.05″
May 28	0.17″	2.00″	1963	69%	19.22″
May 29	0.18″	4.24″	2023	64%	19.41″
May 30	0.18″	1.51″	1960	68%	19.59″
May 31	0.19″	2.48″	2020	62%	19.77″
Jun 1	0.18″	3.00″	2005	65%	19.96″
Jun 2	0.18″	3.89″	2023	60%	20.14″
Jun 3	0.18″	2.40″	1962	61%	20.31″
Jun 4	0.18″	0.95″	1967	65%	20.49″
Jun 5	0.19″	2.21″	2025	72%	20.68″
Jun 6	0.19″	1.80″	1974	64%	20.87″
Jun 7	0.20″	2.89″	2001	71%	21.07″
Jun 8	0.19″	1.93″	1989	74%	21.26″
Jun 9	0.19″	1.20″	1970	68%	21.45″
Jun 10	0.18″	0.81″	2023	70%	21.63″
Jun 11	0.18″	1.05″	1986	68%	21.81″
Jun 12	0.18″	1.62″	1976	76%	21.99″
Jun 13	0.18″	2.30″	1958	66%	22.17″
Jun 14	0.20″	1.69″	1984	79%	22.37″
Jun 15	0.20″	2.16″	1989	70%	22.57″
Jun 16	0.20″	3.69″	1985	75%	22.78″
Jun 17	0.21″	1.35″	1984	75%	22.99″
Jun 18	0.22″	1.39″	2017	75%	23.21″
Jun 19	0.23″	1.54″	1957	75%	23.44″
Jun 20	0.26″	3.75″	1985	76%	23.70″
Jun 21	0.28″	3.34″	2016	85%	23.98″
Jun 22	0.28″	3.86″	1982	78%	24.26″
Jun 23	0.28″	1.63″	2010	88%	24.53″
Jun 24	0.27″	1.17″	2025	84%	24.81″
Jun 25	0.28″	5.37″	2025	74%	25.08″
Jun 26	0.28″	3.15″	1962	86%	25.37″
Jun 27	0.35″	16.00″	2004	82%	25.71″
Jun 28	0.35″	5.49″	2004	82%	26.06″
Jun 29	0.35″	1.32″	2002	80%	26.41″
Jun 30	0.35″	1.23″	2012	76%	26.76″
Jul 1	0.36″	2.20″	1947	79%	27.12″
Jul 2	0.37″	1.15″	2017	85%	27.49″
Jul 3	0.37″	6.77″	1986	86%	27.86″
Jul 4	0.37″	12.10″	2015	80%	28.23″
Jul 5	0.35″	12.64″	2026	82%	28.58″
Jul 6	0.35″	1.91″	2006	80%	28.94″
Jul 7	0.37″	2.00″	1955	81%	29.31″
Jul 8	0.38″	2.63″	2008	81%	29.69″
Jul 9	0.39″	2.85″	1997	90%	30.08″
Jul 10	0.40″	1.95″	1987	75%	30.48″
Jul 11	0.39″	2.27″	1981	80%	30.87″
Jul 12	0.33″	2.82″	2011	81%	31.20″
Jul 13	0.36″	3.06″	2011	80%	31.56″
Jul 14	0.35″	3.17″	2010	82%	31.91″
Jul 15	0.36″	2.82″	1958	76%	32.27″
Jul 16	0.36″	2.60″	1993	73%	32.63″
Jul 17	0.35″	2.41″	2006	81%	32.98″
Jul 18	0.36″	2.77″	1950	76%	33.34″
Jul 19	0.37″	4.48″	1971	80%	33.71″
Jul 20	0.38″	4.88″	2014	80%	34.09″
Jul 21	0.39″	2.52″	1965	80%	34.48″
Jul 22	0.42″	3.42″	1987	80%	34.90″
Jul 23	0.42″	2.57″	1972	75%	35.32″
Jul 24	0.42″	1.99″	1971	82%	35.74″
Jul 25	0.44″	2.93″	1975	78%	36.18″
Jul 26	0.46″	2.88″	1962	77%	36.64″
Jul 27	0.50″	4.29″	2011	82%	37.14″
Jul 28	0.51″	4.07″	1996	90%	37.64″
Jul 29	0.54″	10.44″	2014	90%	38.18″
Jul 30	0.54″	2.90″	1962	78%	38.72″
Jul 31	0.55″	4.01″	2009	78%	39.27″
Aug 1	0.56″	5.73″	1962	90%	39.83″
Aug 2	0.55″	3.65″	2024	81%	40.38″
Aug 3	0.56″	4.89″	1971	85%	40.93″
Aug 4	0.56″	4.84″	2012	78%	41.49″
Aug 5	0.54″	4.39″	2004	78%	42.03″
Aug 6	0.52″	2.96″	2004	77%	42.56″
Aug 7	0.55″	4.73″	2012	78%	43.10″
Aug 8	0.57″	2.82″	1981	84%	43.67″
Aug 9	0.56″	2.77″	1978	80%	44.23″
Aug 10	0.54″	5.53″	1953	82%	44.77″
Aug 11	0.51″	4.53″	1974	86%	45.28″
Aug 12	0.49″	2.69″	2009	86%	45.77″
Aug 13	0.49″	2.85″	1961	78%	46.26″
Aug 14	0.50″	9.64″	2015	76%	46.76″
Aug 15	0.53″	4.25″	2018	85%	47.30″
Aug 16	0.56″	3.09″	2003	77%	47.85″
Aug 17	0.57″	2.97″	1997	80%	48.43″
Aug 18	0.58″	3.85″	1985	81%	49.01″
Aug 19	0.58″	2.12″	1991	84%	49.59″
Aug 20	0.58″	4.40″	1991	85%	50.16″
Aug 21	0.62″	5.02″	1976	87%	50.78″
Aug 22	0.59″	7.52″	2004	82%	51.38″
Aug 23	0.57″	4.40″	1967	80%	51.95″
Aug 24	0.57″	3.69″	1961	76%	52.52″
Aug 25	0.58″	3.26″	2000	81%	53.10″
Aug 26	0.59″	3.62″	1982	81%	53.69″
Aug 27	0.58″	4.11″	1953	77%	54.27″
Aug 28	0.55″	13.36″	1992	85%	54.82″
Aug 29	0.54″	3.14″	2002	73%	55.36″
Aug 30	0.50″	4.33″	2005	76%	55.86″
Aug 31	0.51″	2.77″	1954	82%	56.37″
Sep 1	0.50″	5.06″	2011	84%	56.87″
Sep 2	0.50″	6.16″	1990	71%	57.37″
Sep 3	0.49″	3.75″	1987	75%	57.86″
Sep 4	0.50″	3.19″	2003	80%	58.36″
Sep 5	0.47″	3.22″	1950	81%	58.82″
Sep 6	0.47″	9.28″	1950	86%	59.30″
Sep 7	0.49″	3.94″	1966	81%	59.79″
Sep 8	0.48″	5.36″	1989	81%	60.27″
Sep 9	0.49″	9.40″	2018	88%	60.76″
Sep 10	0.48″	2.03″	1961	85%	61.24″
Sep 11	0.51″	6.01″	2024	85%	61.75″
Sep 12	0.55″	3.67″	1945	80%	62.30″
Sep 13	0.56″	3.76″	2024	78%	62.86″
Sep 14	0.56″	8.20″	2019	81%	63.42″
Sep 15	0.55″	3.44″	1977	85%	63.97″
Sep 16	0.55″	5.62″	2024	79%	64.53″
Sep 17	0.53″	4.70″	1972	88%	65.06″
Sep 18	0.55″	10.19″	2013	80%	65.61″
Sep 19	0.53″	8.21″	2013	79%	66.14″
Sep 20	0.53″	3.16″	1995	79%	66.66″
Sep 21	0.53″	2.59″	1984	88%	67.19″
Sep 22	0.51″	3.97″	2021	86%	67.70″
Sep 23	0.53″	2.88″	1993	79%	68.23″
Sep 24	0.51″	2.27″	1972	80%	68.74″
Sep 25	0.52″	4.93″	2002	78%	69.26″
Sep 26	0.49″	3.45″	1985	81%	69.75″
Sep 27	0.45″	2.65″	1955	79%	70.21″
Sep 28	0.44″	2.92″	1962	80%	70.65″
Sep 29	0.45″	3.31″	1962	81%	71.09″
Sep 30	0.44″	3.76″	1993	87%	71.54″
Oct 1	0.45″	4.68″	1950	80%	71.99″
Oct 2	0.46″	8.01″	1986	86%	72.44″
Oct 3	0.44″	6.27″	1951	72%	72.89″
Oct 4	0.45″	3.20″	1973	84%	73.33″
Oct 5	0.45″	4.03″	1995	85%	73.78″
Oct 6	0.45″	3.11″	2006	84%	74.24″
Oct 7	0.45″	2.44″	1951	81%	74.69″
Oct 8	0.45″	4.20″	1979	80%	75.14″
Oct 9	0.48″	4.63″	1979	81%	75.62″
Oct 10	0.48″	4.63″	2022	82%	76.10″
Oct 11	0.49″	5.52″	1963	84%	76.60″
Oct 12	0.49″	2.65″	1995	82%	77.08″
Oct 13	0.48″	5.37″	2001	84%	77.56″
Oct 14	0.47″	15.48″	1953	84%	78.02″
Oct 15	0.46″	4.69″	1953	82%	78.48″
Oct 16	0.45″	3.83″	2015	80%	78.93″
Oct 17	0.43″	5.43″	2003	80%	79.36″
Oct 18	0.43″	4.73″	1977	79%	79.79″
Oct 19	0.42″	3.05″	1967	78%	80.21″
Oct 20	0.41″	4.05″	2024	74%	80.61″
Oct 21	0.39″	5.40″	1992	76%	81.00″
Oct 22	0.38″	3.13″	1968	81%	81.37″
Oct 23	0.36″	2.81″	1989	75%	81.73″
Oct 24	0.33″	2.85″	1994	80%	82.07″
Oct 25	0.31″	2.28″	2007	82%	82.38″
Oct 26	0.31″	2.21″	1995	84%	82.69″
Oct 27	0.32″	2.27″	1975	75%	83.01″
Oct 28	0.31″	3.78″	1988	75%	83.32″
Oct 29	0.29″	2.14″	1988	74%	83.62″
Oct 30	0.29″	1.67″	1995	76%	83.91″
Oct 31	0.29″	2.61″	1951	90%	84.20″
Nov 1	0.30″	3.17″	1978	84%	84.50″
Nov 2	0.30″	2.74″	1978	75%	84.80″
Nov 3	0.29″	2.61″	1951	78%	85.08″
Nov 4	0.28″	2.02″	1978	81%	85.37″
Nov 5	0.28″	2.02″	2025	79%	85.65″
Nov 6	0.27″	3.73″	1979	79%	85.91″
Nov 7	0.25″	3.25″	1977	79%	86.17″
Nov 8	0.26″	2.25″	1996	81%	86.43″
Nov 9	0.26″	1.40″	1996	75%	86.69″
Nov 10	0.25″	2.62″	1954	81%	86.94″
Nov 11	0.25″	1.88″	1953	76%	87.19″
Nov 12	0.25″	3.48″	1956	75%	87.44″
Nov 13	0.26″	3.87″	1984	81%	87.70″
Nov 14	0.25″	3.98″	1957	79%	87.95″
Nov 15	0.24″	4.69″	2003	81%	88.19″
Nov 16	0.25″	1.73″	2001	82%	88.44″
Nov 17	0.24″	2.14″	2003	88%	88.69″
Nov 18	0.25″	4.10″	1992	80%	88.94″
Nov 19	0.28″	2.85″	1981	72%	89.22″
Nov 20	0.28″	1.48″	2015	75%	89.50″
Nov 21	0.28″	1.98″	2018	75%	89.78″
Nov 22	0.29″	1.25″	1990	81%	90.06″
Nov 23	0.27″	3.37″	2007	82%	90.33″
Nov 24	0.27″	1.37″	2003	79%	90.60″
Nov 25	0.26″	1.51″	1996	71%	90.87″
Nov 26	0.25″	6.90″	2019	79%	91.12″
Nov 27	0.25″	3.07″	1989	68%	91.37″
Nov 28	0.24″	1.27″	2020	69%	91.61″
Nov 29	0.24″	1.40″	2021	66%	91.85″
Nov 30	0.28″	2.66″	2021	76%	92.13″
Dec 1	0.26″	3.23″	2009	78%	92.39″
Dec 2	0.25″	1.45″	2020	71%	92.65″
Dec 3	0.24″	2.08″	1994	70%	92.89″
Dec 4	0.21″	1.81″	1948	79%	93.10″
Dec 5	0.21″	2.35″	1951	76%	93.31″
Dec 6	0.21″	2.42″	1962	76%	93.52″
Dec 7	0.21″	19.67″	2002	72%	93.73″
Dec 8	0.24″	1.61″	1958	72%	93.97″
Dec 9	0.25″	2.93″	1981	74%	94.22″
Dec 10	0.25″	0.84″	2011	71%	94.46″
Dec 11	0.24″	1.28″	1964	76%	94.70″
Dec 12	0.23″	4.47″	2016	70%	94.94″
Dec 13	0.24″	1.80″	1960	75%	95.18″
Dec 14	0.24″	1.52″	2002	70%	95.42″
Dec 15	0.19″	13.81″	1997	70%	95.61″
Dec 16	0.20″	7.23″	1997	76%	95.81″
Dec 17	0.20″	1.27″	1962	70%	96.02″
Dec 18	0.20″	2.82″	1969	75%	96.22″
Dec 19	0.21″	1.22″	1990	66%	96.43″
Dec 20	0.21″	11.24″	1990	78%	96.64″
Dec 21	0.21″	2.17″	2025	66%	96.85″
Dec 22	0.21″	1.38″	2003	66%	97.06″
Dec 23	0.17″	2.46″	2009	70%	97.23″
Dec 24	0.16″	1.60″	2018	68%	97.39″
Dec 25	0.16″	1.61″	1986	57%	97.54″
Dec 26	0.15″	2.82″	1986	70%	97.70″
Dec 27	0.15″	1.45″	1980	75%	97.85″
Dec 28	0.16″	0.65″	2005	70%	98.00″
Dec 29	0.16″	3.11″	2003	73%	98.16″
Dec 30	0.16″	1.37″	2023	61%	98.32″
Dec 31	0.15″	3.17″	1952	75%	98.47″

Records & forecast → Guam station Every Day of the Year → national almanac

Data: NOAA/NWS ThreadEx (RCC-ACIS) · normals 1991–2020 (or full record) · part of Weather Trader