Ontario Weather Records

Weather averages and records for Ontario, Canada based on data made available by the NOAA.
Province:
Month:
Ontario Cities
Yearly weather averages for various places in Ontario, from 1991–2020.
City Average (°C) Record (°C) Yearly (cm)
High Low High Low Precipitation Snow
Barrie 12.0 2.4 38.9 -38.9 97.7 278.3
Belleville 13.0 3.7 40.0 -39.4 86.8 106.6
Brockville 12.3 3.4 39.4 -38.3 101.3 178.6
Cornwall 12.6 3.4 37.8 -43.3 98.6 196.3
Hamilton 13.8 3.9 41.1 -30.6 79.3 n/a
Kapuskasing 7.7 -4.3 38.3 -47.2 83.9 305.0
Kingston 12.3 3.2 35.6 -35.6 89.5 n/a
Kitchener 12.6 1.9 38.3 -34.1 80.9 n/a
London 13.1 3.4 41.1 -32.8 94.7 n/a
Moosonee 6.2 -5.2 37.8 -46.7 71.5 221.5
North Bay 9.4 -0.2 37.2 -44.4 102.1 315.1
Orillia 11.8 2.4 40.0 -37.0 105.3 307.1
Oshawa 12.5 3.8 37.8 -32.8 81.5 99.2
Ottawa 11.8 2.2 37.8 -38.9 92.7 181.8
Peterborough 12.5 0.5 38.9 -39.4 81.3 n/a
Sarnia 13.3 4.0 39.1 -28.9 85.3 113.2
Sioux Lookout 7.6 -2.7 39.4 -46.1 80.3 214.9
St. Catharines 13.2 6.3 40.0 -24.4 69.6 n/a
St. Thomas 13.9 4.0 38.9 -34.4 91.3 111.6
Sudbury 9.4 -0.8 38.3 -42.8 91.6 274.8
Thunder Bay 9.4 -3.1 40.3 -43.2 61.0 n/a
Timmins 8.1 -4.0 39.4 -45.6 80.8 308.9
Toronto 13.5 6.0 40.6 -32.8 81.0 n/a
Welland 14.0 4.3 37.8 -32.8 91.2 131.9
Windsor 15.4 6.2 40.2 -28.0 94.3 105.7
Woodstock 13.3 3.2 38.9 -36.7 93.7 105.5