Weather Avenue > 
Weather America > Canada > 
Ontario > 
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| Month | Max. | Min. | Avg. |
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| January | 5°C | -13°C | -2°C |
| February | 13°C | -10°C | 1°C |
| March | 16°C | -6°C | 4°C |
| April | 17°C | 0°C | 8°C |
| May | 25°C | 8°C | 15°C |
| June | 30°C | 11°C | 19°C |
| July | 31°C | 12°C | 22°C |
| August | 31°C | 11°C | 22°C |
| September | 34°C | 9°C | 19°C |
| October | 27°C | 2°C | 13°C |
| November | 15°C | -4°C | 4°C |
| December | 10°C | -3°C | 3°C |
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