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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

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan13.9°-9.5°-32.9°46.590%4237.8
Feb14.5°-8.4°-34.5°4089%6236.7
Mar26.1°-2.2°-29.8°44.681%10938
Apr27.9°5.6°-11.7°59.774%13732.3
May32.9°13°-4°63.574%17225.6
Jun34.8°18.2°1.1°80.474%17918.5
Jul36°21.5°7.8°77.871%18716.3
Aug36.8°20.8°6.9°69.869%16219.2
Sep36.3°16.7°-0.9°64.871%12422.2
Oct28.9°8.9°-5.7°7577%7723.3
Nov21.3°1.9°-16.6°55.281%4727.9
Dec17.2°-5.2°-31.6°55.588%3434.9

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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