April Temperatures in Ontario

You can jump to a separate table for each section of the province: Eastern, Central, Southwestern, Northeastern and Northwestern Ontario.

Average temperatures for April at cities, towns and parks throughout Ontario are given below.

The tables list the normals for maximum and minimum monthly temperatures, in degrees Celsius and Fahrenheit, based on weather data collected from 1981 to 2010.

Eastern Ontario

Average April temperatures
High °F	Low °F	Place	High °C	Low °C
53	36	Belleville	12	2
53	36	Cornwall	12	2
50	34	Kingston	10	1
53	35	Ottawa	11	1
53	29	Pembroke	12	-2

Central Ontario

Average daily temperatures in April
High °F	Low °F	Place	High °C	Low °C
52	32	Barrie	11	0
54	35	Brantford	12	2
50	30	French River, Chaudiere Dam	10	-1
53	36	Hamilton	12	2
51	30	Huntsville	11	-1
51	32	Midland	11	0
55	37	Niagara Falls	13	3
51	36	Oshawa	11	2
53	35	Peterborough	12	2
54	36	St Catharines	12	2
53	39	Toronto	12	4

Southwestern Ontario

April temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
56	38	Chatham-Kent	13	4
52	33	Guelph	11	1
54	35	London	12	2
51	34	Owen Sound	10	1
53	38	Point Pelee National Park	12	3
54	35	Sarnia	12	2
53	33	Waterloo	11	1
57	39	Windsor	14	4

Northeastern Ontario

Average April temperatures
High °F	Low °F	Place	High °C	Low °C
46	24	Chapleau	8	-5
49	31	Gore Bay	10	0
46	23	Kapuskasing	8	-5
40	18	Moosonee	4	-8
48	30	North Bay	9	-1
48	29	Sault Ste Marie	9	-2
47	31	South Baymouth	8	-1
49	29	Sudbury	9	-2
46	24	Timmins	8	-5
45	24	Wawa	7	-4

Northwestern Ontario

Average April temperatures
High °F	Low °F	Place	High °C	Low °C
47	25	Atikokan	8	-4
38	16	Big Trout Lake	3	-9
48	27	Dryden	9	-3
51	27	Fort Frances	10	-3
49	30	Kenora	9	-1
47	25	Red Lake	9	-4
49	26	Thunder Bay	9	-3

Average Temperatures for Ontario in April

Eastern Ontario

Central Ontario

Southwestern Ontario

Northeastern Ontario

Northwestern Ontario

Reference

More Ontario Weather Information