Average Precipitation in Tonga by Year

This page is a list of the average countrywide precipitation in Tonga for each year from 1895–2021. It is an average over the entire territory of the country, based on data from the University of East Anglia.

Country:

All-Time Rainiest Year in Tonga

1971 was the rainiest year in the recorded history of Tonga. The average annual precipitation was 263.2 cm.

All-Time Driest Year in Tonga

1998 had the least rain of any year in the recorded history of Tonga. The average annual precipitation was 123.7 cm.

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Year	Rank	Precipitation (cm)
2021	69	194.8
2020	33	201.8
2019	46	198.0
2018	45	198.2
2017	57	196.4
2016	59	196.1
2015	58	196.3
2014	54	196.8
2013	55	196.7
2012	63	195.8
2011	53	197.0
2010	64	195.8
2009	65	195.8
2008	60	196.0
2007	51	197.4
2006	48	197.5
2005	62	195.9
2004	71	194.3
2003	72	194.1
2002	44	198.6
2001	36	200.4
2000	2	258.5
1999	4	247.9
1998	121	123.7
1997	61	196.0
1996	24	211.1
1995	114	157.8
1994	87	187.9
1993	88	187.9
1992	94	184.5
1991	91	186.3
1990	96	182.9
1989	8	236.8
1988	25	210.8
1987	119	130.3
1986	108	168.5
1985	116	154.3
1984	110	166.7
1983	120	128.4
1982	30	205.7
1981	111	164.6
1980	47	197.6
1979	18	218.1
1978	20	215.4
1977	115	156.6
1976	86	188.0
1975	6	242.8
1974	7	238.6
1973	5	246.6
1972	12	232.0
1971	1	263.2
1970	78	192.5
1969	105	170.1
1968	98	180.2
1967	15	222.3
1966	107	169.2
1965	103	173.1
1964	29	207.2
1963	104	172.7
1962	17	218.4
1961	19	217.0
1960	28	207.3
1959	22	214.0
1958	99	178.5
1957	16	219.3
1956	9	233.8
1955	14	229.3
1954	13	229.6
1953	117	152.1
1952	109	168.0
1951	100	175.0
1950	3	252.5
1949	34	200.9
1948	11	233.0
1947	21	214.7
1946	112	164.0
1945	97	180.2
1944	75	193.5
1943	90	187.5
1942	73	194.1
1941	106	169.3
1940	118	137.1
1939	27	207.3
1938	37	200.1
1937	102	173.2
1936	74	194.0
1935	23	213.2
1934	67	195.2
1933	10	233.5
1932	101	174.6
1931	42	198.8
1930	113	160.4
1929	56	196.4
1928	95	184.3
1927	31	203.7
1926	68	194.8
1925	83	188.8
1924	52	197.3
1923	76	193.1
1922	40	199.1
1921	50	197.4
1920	41	199.0
1919	84	188.6
1918	79	190.2
1917	49	197.5
1916	32	202.4
1915	82	189.3
1914	70	194.6
1913	38	199.7
1912	85	188.4
1911	89	187.8
1910	66	195.6
1909	92	185.6
1908	26	208.2
1907	39	199.4
1906	81	189.4
1905	93	185.1
1904	35	200.5
1903	43	198.8
1902	80	189.6
1901	76	193.1