Number of Days Below 0 °C in Thunder Bay by Year

This page contains a list of the number of days in each year that the low temperature fell below 0 degrees Celsius in Thunder Bay, Ontario, between 1941 and 2024.

Also see:

Which year had the most days below freezing?

Based on NOAA records, the year 2002 holds the Thunder Bay record. There were 227 days with a low temperature below 0 degrees that year.

How many days below freezing so far?

As of April 9, there have been 95 days this year where the low temperature has fallen below 0 degrees Celsius in Thunder Bay, Ontario.

The last time it fell below 0° C was April 7, 2024.

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

Year	Rank	Days < 0 °C
2024	83	95
2023	80	164
2022	48	194
2021	67	188
2020	4	213
2019	11	206
2018	24	201
2017	57	192
2016	75	183
2015	48	194
2014	67	188
2013	20	202
2012	65	189
2011	5	210
2010	72	184
2009	29	200
2008	24	201
2007	69	187
2006	37	197
2005	82	131
2004	81	145
2003	10	207
2002	1	227
2001	52	193
2000	46	195
1999	48	194
1998	78	180
1997	65	189
1996	64	190
1995	72	184
1994	42	196
1993	76	181
1992	37	197
1991	33	199
1990	24	201
1989	11	206
1988	3	214
1987	24	201
1986	52	193
1985	48	194
1984	57	192
1983	8	209
1982	52	193
1981	29	200
1980	19	203
1979	52	193
1978	5	210
1977	76	181
1976	2	225
1975	46	195
1974	11	206
1973	72	184
1972	11	206
1971	70	186
1970	42	196
1969	16	205
1968	57	192
1967	8	209
1966	11	206
1965	29	200
1964	24	201
1963	37	197
1962	42	196
1961	57	192
1960	57	192
1959	52	193
1958	63	191
1957	37	197
1956	29	200
1955	79	179
1954	33	199
1953	57	192
1952	33	199
1951	42	196
1950	17	204
1949	20	202
1948	33	199
1947	17	204
1946	20	202
1945	5	210
1944	70	186
1943	20	202
1942	37	197
1941	84	67

Weather Station Details

Years	Station	Coordinates
2004–2024	Thunder Bay CS	location
1941–2003	Thunder Bay A	location