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Weather & Climate
Smiths Falls, Ontario, Canada
Overview
Climate data and monthly weather averages for Smiths Falls.
Key Metrics
Annual Avg
6.8°C
Summer Avg
20.2°C
Winter Avg
-7.7°C
Record High
36.8°C
Record Low
-34.5°C
Annual Precipitation
732.8 mm
Avg Humidity
78%
Summer Humidity
71%
Winter Humidity
89%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 13.9° | -9.5° | -32.9° | 46.5 | 90% | 42 | 37.8 |
| Feb | 14.5° | -8.4° | -34.5° | 40 | 89% | 62 | 36.7 |
| Mar | 26.1° | -2.2° | -29.8° | 44.6 | 81% | 109 | 38 |
| Apr | 27.9° | 5.6° | -11.7° | 59.7 | 74% | 137 | 32.3 |
| May | 32.9° | 13° | -4° | 63.5 | 74% | 172 | 25.6 |
| Jun | 34.8° | 18.2° | 1.1° | 80.4 | 74% | 179 | 18.5 |
| Jul | 36° | 21.5° | 7.8° | 77.8 | 71% | 187 | 16.3 |
| Aug | 36.8° | 20.8° | 6.9° | 69.8 | 69% | 162 | 19.2 |
| Sep | 36.3° | 16.7° | -0.9° | 64.8 | 71% | 124 | 22.2 |
| Oct | 28.9° | 8.9° | -5.7° | 75 | 77% | 77 | 23.3 |
| Nov | 21.3° | 1.9° | -16.6° | 55.2 | 81% | 47 | 27.9 |
| Dec | 17.2° | -5.2° | -31.6° | 55.5 | 88% | 34 | 34.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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