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St. Catharines January Weather

Averages and records for weather in St. Catharines, Ontario in the month of January.

Typical St. Catharines January Weather 1991–2020
Average daily high	0.5 °C
Average daily low	-5.7 °C
Average monthly precipitation	3.6 cm
Daily chance of precipitation	39.5%

St. Catharines January Weather Records 1882–2024
Highest temperature	20.0 °C	January 25, 1950
Lowest temperature	-23.5 °C	January 19, 1994
Highest daily low	11.1 °C	January 4, 1950
Lowest daily high	-18.9 °C	January 14, 1914
Hottest average high temperature	5.5 °C	1932
Coldest average high temperature	-4.9 °C	1920
Most daily precipitation	4.6 cm	January 22, 1902
Most monthly precipitation	18.3 cm	2009

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
January 1	1.9	-3.8	12.6	-17.8
January 2	1.8	-3.9	13.5	-17.2
January 3	1.7	-4.1	15.6	-17.0
January 4	1.6	-4.2	14.3	-23.0
January 5	1.4	-4.4	15.0	-18.3
January 6	1.3	-4.6	16.7	-18.3
January 7	1.1	-4.8	15.7	-19.0
January 8	0.9	-4.9	16.6	-21.1
January 9	0.9	-5.0	14.1	-21.1
January 10	0.9	-5.1	14.4	-20.6
January 11	0.7	-5.2	16.3	-18.0
January 12	0.6	-5.3	15.5	-22.0
January 13	0.5	-5.4	18.6	-22.8
January 14	0.5	-5.5	16.1	-23.3
January 15	0.4	-5.6	13.9	-19.4
January 16	0.3	-5.7	11.1	-22.0
January 17	0.2	-5.7	12.2	-18.9
January 18	0.2	-5.8	14.4	-19.4
January 19	0.1	-5.9	11.1	-23.5
January 20	0.2	-5.9	14.4	-21.5
January 21	0.2	-5.9	8.9	-21.0
January 22	0.2	-5.9	12.8	-18.9
January 23	0.1	-5.9	13.9	-19.4
January 24	0.1	-5.9	15.0	-19.4
January 25	0.1	-6.0	20.0	-22.2
January 26	0.0	-6.0	13.3	-22.8
January 27	-0.1	-6.1	11.1	-21.1
January 28	-0.2	-6.2	11.7	-20.0
January 29	-0.1	-6.2	14.4	-21.1
January 30	-0.2	-6.3	17.2	-21.1
January 31	-0.2	-6.2	18.0	-20.6

Weather Station Details

Years	Station	Coordinates
1995–2024	Port Weller (AUT)	location
1882–1994	St Catherines	location