Average Temperatures for Ontario in October





Average temperatures for October 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 October temperatures
High °F Low °F Place High °C Low °C
57 42 Belleville 14 5
56 41 Cornwall 14 5
56 40 Kingston 13 5
55 39 Ottawa 13 4
54 34 Pembroke 12 1

Central Ontario

Average daily temperatures in October
High °F Low °F Place High °C Low °C
56 39 Barrie 13 4
58 39 Brantford 15 4
53 36 French River, Chaudiere Dam 12 2
58 42 Hamilton 15 5
54 37 Huntsville 12 3
55 38 Midland 13 3
59 44 Niagara Falls 15 7
56 42 Oshawa 13 6
56 39 Peterborough 13 4
59 42 St Catharines 15 6
57 45 Toronto 14 7

Southwestern Ontario

October temperatures: daily averages
High °F Low °F Place High °C Low °C
60 44 Chatham-Kent 16 7
56 37 Guelph 13 3
57 40 London 14 4
56 42 Owen Sound 13 6
59 46 Point Pelee National Park 15 8
59 42 Sarnia 15 5
56 37 Waterloo 14 3
61 44 Windsor 16 7

Northeastern Ontario

Average October temperatures
High °F Low °F Place High °C Low °C
48 31 Chapleau 9 0
53 39 Gore Bay 11 4
47 31 Kapuskasing 8 0
46 31 Moosonee 8 0
51 36 North Bay 10 2
53 37 Sault Ste Marie 12 3
52 39 South Baymouth 11 4
51 35 Sudbury 10 2
48 31 Timmins 9 0
49 33 Wawa 10 0

Northwestern Ontario

Average October temperatures
High °F Low °F Place High °C Low °C
49 33 Atikokan 9 1
40 29 Big Trout Lake 4 -2
47 32 Dryden 8 0
50 32 Fort Frances 10 0
48 35 Kenora 9 1
46 31 Red Lake 8 0
50 30 Thunder Bay 10 -1
Reference

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

Ontario Temperatures
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