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Weather & Climate
Sudbury, Ontario, Canada
Overview
Climate data and monthly weather averages for Sudbury.
Key Metrics
Annual Avg
2.8°C
Summer Avg
16.7°C
Winter Avg
-12.2°C
Record High
33.3°C
Record Low
-44.4°C
Annual Precipitation
825.4 mm
Avg Humidity
85%
Summer Humidity
79%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 3° | -14° | -44.4° | 47.4 | 95% | 40 | 33.2 |
| Feb | 1.9° | -13.2° | -38.5° | 42.6 | 95% | 65 | 33 |
| Mar | 23.8° | -7.2° | -38.5° | 46.8 | 94% | 118 | 34.8 |
| Apr | 23.6° | 1.6° | -20° | 69.6 | 81% | 141 | 26.8 |
| May | 31.9° | 9.6° | -6.5° | 76.3 | 77% | 166 | 26.3 |
| Jun | 32.1° | 15.1° | -0.8° | 78.6 | 78% | 173 | 23.3 |
| Jul | 33.3° | 17.9° | 5.2° | 78.7 | 79% | 176 | 20 |
| Aug | 32.8° | 17° | 2.6° | 85.9 | 79% | 147 | 21.7 |
| Sep | 29.2° | 13° | -2.2° | 81.3 | 80% | 106 | 24 |
| Oct | 25.8° | 5.2° | -12.3° | 91.8 | 84% | 66 | 28.1 |
| Nov | 18.4° | -1.5° | -24.1° | 67.5 | 88% | 35 | 26.1 |
| Dec | 10.5° | -9.3° | -41.7° | 58.9 | 95% | 29 | 31.5 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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