Annual mean 8°C · wettest around December · prevailing wind W
Warmest
25.5 °C
Coldest
-6.1 °C
Wettest
39%
Windiest
3.5 m/s
Prevailing
W
2.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Smiths Falls over the whole year is 8°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -8°C. Smiths Falls has no sharply defined rainy season: the chance of rain on a given day runs from 20% in September, the driest month, to 34% in December, the wettest. Winds in Smiths Falls are highest in February, averaging 2.6 m/s (9 km/h), and lightest in September, at 1.7 m/s (6 km/h). The prevailing wind is from the W. The clearest skies in Smiths Falls come in September, when the sky is typically 36% covered; December is the cloudiest month, at 52%.
Month by month Smiths Falls climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-6°C
-8°C
-11°C
33%
51%
2.4 m/s
0
0
0
February
-4°C
-8°C
-9°C
26%
47%
2.6 m/s
0
0
2
March
2°C
-3°C
-3°C
29%
43%
2.6 m/s
0
0
9
April
9°C
3°C
4°C
29%
43%
2.6 m/s
8
0
35
May
17°C
10°C
14°C
23%
40%
2.2 m/s
43
8
67
June
22°C
15°C
21°C
24%
40%
2.1 m/s
69
26
58
July
25°C
18°C
25°C
22%
36%
1.8 m/s
64
55
29
August
24°C
17°C
24°C
23%
37%
1.8 m/s
69
46
38
September
20°C
12°C
19°C
20%
36%
1.7 m/s
66
18
67
October
13°C
7°C
10°C
24%
43%
2.0 m/s
27
2
60
November
5°C
1°C
-0°C
27%
46%
2.4 m/s
4
0
16
December
-2°C
-4°C
-7°C
34%
52%
2.4 m/s
0
0
1
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Smiths Falls weather by season
Year round, Smiths Falls has days of about -6°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from -8°C to 18°C through the year, and the average temperature over the year is 8°C around the clock. Rain is most likely around December and least likely around September. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Smiths Falls weather in winterDecember to February
High -4°CLow -7°CRain 31%
Winter in Smiths Falls has typical daily highs of about -4°C and lows of about -7°C, with a 31% chance of rain on a given day.
Smiths Falls weather in springMarch to May
High 9°CLow 3°CRain 27%
Spring in Smiths Falls has typical daily highs of about 9°C and lows of about 3°C, with a 27% chance of rain on a given day.
Smiths Falls weather in summerJune to August
High 24°CLow 17°CRain 23%
Summer in Smiths Falls has typical daily highs of about 24°C and lows of about 17°C, with a 23% chance of rain on a given day.
Smiths Falls weather in autumnSeptember to November
High 13°CLow 7°CRain 24%
Autumn in Smiths Falls has typical daily highs of about 13°C and lows of about 7°C, with a 24% chance of rain on a given day.
When is the rainy season in Smiths Falls?
Smiths Falls has no sharply defined rainy season: the chance of rain on a given day runs from 20% in September, the driest month, to 34% in December, the wettest.
What time of year is Smiths Falls windiest?
Winds in Smiths Falls are highest in February, averaging 2.6 m/s (9 km/h), and lightest in September, at 1.7 m/s (6 km/h). The prevailing wind is from the W.
What is the average temperature in Smiths Falls year round?
The average temperature in Smiths Falls over the whole year is 8°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -8°C.