Average Temperatures for Ontario in June





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

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

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 June temperatures
High °F Low °F Place High °C Low °C
75 57 Belleville 24 14
76 57 Cornwall 24 14
71 54 Kingston 22 12
75 56 Ottawa 24 13
74 48 Pembroke 24 9

Central Ontario

Average daily temperatures in June
High °F Low °F Place High °C Low °C
74 54 Barrie 24 12
76 55 Brantford 25 13
74 50 French River, Chaudiere Dam 23 10
76 56 Hamilton 24 13
73 52 Huntsville 23 11
74 52 Midland 23 11
76 57 Niagara Falls 24 14
72 55 Oshawa 22 13
74 55 Peterborough 23 13
76 56 St Catharines 24 13
75 59 Toronto 24 15

Southwestern Ontario

June temperatures: daily averages
High °F Low °F Place High °C Low °C
78 59 Chatham-Kent 26 15
74 51 Guelph 23 11
75 55 London 24 13
71 53 Owen Sound 22 11
75 59 Point Pelee National Park 24 15
75 55 Sarnia 24 13
74 53 Waterloo 24 12
78 59 Windsor 26 15

Northeastern Ontario

Average June temperatures
High °F Low °F Place High °C Low °C
70 47 Chapleau 21 8
70 50 Gore Bay 21 10
71 46 Kapuskasing 22 8
66 42 Moosonee 19 5
71 52 North Bay 22 11
71 47 Sault Ste Marie 21 8
67 48 South Baymouth 19 9
72 51 Sudbury 22 11
71 46 Timmins 22 8
66 43 Wawa 19 6

Northwestern Ontario

Average June temperatures
High °F Low °F Place High °C Low °C
71 50 Atikokan 22 10
63 43 Big Trout Lake 17 6
71 51 Dryden 22 11
73 50 Fort Frances 23 10
71 53 Kenora 22 12
70 48 Red Lake 21 9
69 45 Thunder Bay 21 7
Reference

Environment Canada. Meteorological Service of Canada. Canadian Climate Normals. 1981-2010 Climate Normals & Averages.

Ontario Temperatures
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