Montreal, Canada: Annual Weather Averages
July is the hottest month in Montreal with an average temperature of 21°C (70°F) and the coldest is January at -9°C (16°F). The wettest month is August with an average of 100mm of rain..
Average Temperature: Montreal
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | -9 | -8 | -2 | 6 | 14 | 18 | 21 | 21 | 16 | 9 | 3 | -6 |
| °F | 16 | 18 | 28 | 43 | 56 | 64 | 70 | 69 | 61 | 48 | 37 | 22 |
Average High/Low Temperature: Montreal
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | -4 | -4 | 2 | 11 | 19 | 23 | 26 | 27 | 23 | 14 | 8 | 0 |
| Low °C | -14 | -12 | -6 | 1 | 8 | 12 | 16 | 14 | 9 | 4 | -2 | -11 |
| High °F | 25 | 25 | 36 | 52 | 66 | 73 | 79 | 81 | 73 | 57 | 46 | 32 |
| Low °F | 7 | 10 | 21 | 34 | 46 | 54 | 61 | 57 | 48 | 39 | 28 | 12 |
Average Day/Night Temperature: Montreal
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | -9 | -7 | -2 | 7 | 14 | 20 | 22 | 21 | 17 | 10 | 3 | -5 |
| Night °C | -9 | -7 | -2 | 7 | 14 | 20 | 22 | 21 | 17 | 10 | 3 | -5 |
| Day °F | 16 | 19 | 29 | 45 | 58 | 67 | 72 | 70 | 63 | 49 | 38 | 22 |
| Night °F | 16 | 19 | 29 | 45 | 58 | 67 | 72 | 70 | 63 | 49 | 38 | 22 |
Average Rainfall: Montreal
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 60 | 60 | 60 | 80 | 70 | 80 | 70 | 100 | 90 | 70 | 90 | 70 |
| Days | 7 | 4 | 9 | 15 | 18 | 17 | 18 | 15 | 13 | 17 | 16 | 8 |
