Most Yearly Precipitation in Thunder Bay History

This is a list of the largest annual precipitation totals ever recorded in Thunder Bay, Ontario history from 1941–2024.

What Was the Wettest Year in Thunder Bay History?

According to NOAA records, the most precipitation that Thunder Bay, Ontario has ever received in a single calendar year is 104.6 cm which occurred in 1977.

Year to date though April 9, 2024: 7.5 cm

Thunder Bay Precipitation by Year

Years marked with a gold background have more than 5% incomplete data
Click column headers to sort

Year	Rank	Precipitation (cm)
2024	84	7.5
2023	83	39.7
2022	23	75.0
2021	66	55.3
2020	78	48.7
2019	39	67.3
2018	47	63.3
2017	41	66.9
2016	14	81.0
2015	29	71.4
2014	58	58.8
2013	49	61.8
2012	35	68.9
2011	72	52.1
2010	62	56.4
2009	60	57.3
2008	27	71.8
2007	76	50.6
2006	79	47.5
2005	64	56.3
2004	82	42.2
2003	69	54.6
2002	80	45.5
2001	32	70.3
2000	74	51.8
1999	38	67.4
1998	73	51.8
1997	68	54.7
1996	42	66.2
1995	55	59.8
1994	57	59.1
1993	50	61.7
1992	45	64.6
1991	26	72.4
1990	25	73.8
1989	67	54.7
1988	34	69.0
1987	65	55.6
1986	46	64.5
1985	12	84.0
1984	37	67.8
1983	20	75.9
1982	3	94.1
1981	48	63.0
1980	15	79.7
1979	40	67.0
1978	75	50.8
1977	1	104.6
1976	77	49.8
1975	56	59.7
1974	24	74.2
1973	10	87.3
1972	53	60.5
1971	8	88.8
1970	5	93.1
1969	70	53.1
1968	7	91.7
1967	71	52.7
1966	59	58.1
1965	17	78.3
1964	18	77.0
1963	63	56.4
1962	54	60.2
1961	43	65.3
1960	51	60.8
1959	31	70.8
1958	30	70.9
1957	52	60.7
1956	11	85.0
1955	4	93.2
1954	21	75.6
1953	36	68.5
1952	61	56.7
1951	9	88.7
1950	2	103.8
1949	13	82.0
1948	28	71.8
1947	16	78.5
1946	19	76.1
1945	22	75.5
1944	6	92.8
1943	44	64.7
1942	33	69.8
1941	81	44.4