Annual mean 6°C · wettest around April · prevailing wind W
Warmest
23.0 °C
Coldest
-9.1 °C
Wettest
27%
Windiest
5.9 m/s
Prevailing
W
5.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
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 Sudbury over the whole year is 6°C. July is the hottest month, with highs of about 23°C; February is the coldest, with lows of about -10°C. Sudbury has no sharply defined rainy season: the chance of rain on a given day runs from 13% in July, the driest month, to 21% in April, the wettest. Winds in Sudbury are highest in November, averaging 4.8 m/s (17 km/h), and lightest in July, at 3.6 m/s (13 km/h). The prevailing wind is from the W. The clearest skies in Sudbury come in July, when the sky is typically 33% covered; December is the cloudiest month, at 58%.
Month by month Sudbury 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
-8°C
-10°C
-14°C
18%
56%
4.5 m/s
0
0
0
February
-7°C
-10°C
-14°C
21%
49%
4.7 m/s
0
0
0
March
-1°C
-6°C
-8°C
18%
39%
4.7 m/s
0
0
1
April
6°C
-0°C
-1°C
21%
40%
4.7 m/s
2
0
16
May
15°C
7°C
10°C
14%
36%
4.1 m/s
26
2
59
June
20°C
13°C
17°C
15%
35%
4.0 m/s
62
10
73
July
23°C
16°C
21°C
13%
33%
3.6 m/s
81
25
58
August
22°C
16°C
20°C
14%
35%
3.7 m/s
79
22
62
September
18°C
12°C
15°C
16%
35%
3.9 m/s
50
8
72
October
11°C
7°C
6°C
21%
45%
4.6 m/s
13
0
39
November
2°C
-1°C
-3°C
19%
52%
4.8 m/s
0
0
9
December
-4°C
-6°C
-10°C
21%
58%
4.8 m/s
0
0
0
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 Sudbury weather by season
Year round, Sudbury has days of about -8°C at their warmest in January, its coolest month, and 23°C in July, its warmest; the coolest hours of the day run from -10°C to 16°C through the year, and the average temperature over the year is 6°C around the clock. Rain is most likely around April and least likely around July. 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.
Sudbury weather in winterDecember to February
High -6°CLow -9°CRain 20%
Winter in Sudbury has typical daily highs of about -6°C and lows of about -9°C, with a 20% chance of rain on a given day.
Sudbury weather in springMarch to May
High 6°CLow 0°CRain 18%
Spring in Sudbury has typical daily highs of about 6°C and lows of about 0°C, with a 18% chance of rain on a given day.
Sudbury weather in summerJune to August
High 22°CLow 15°CRain 14%
Summer in Sudbury has typical daily highs of about 22°C and lows of about 15°C, with a 14% chance of rain on a given day.
Sudbury weather in autumnSeptember to November
High 10°CLow 6°CRain 19%
Autumn in Sudbury has typical daily highs of about 10°C and lows of about 6°C, with a 19% chance of rain on a given day.
When is the rainy season in Sudbury?
Sudbury has no sharply defined rainy season: the chance of rain on a given day runs from 13% in July, the driest month, to 21% in April, the wettest.
What time of year is Sudbury windiest?
Winds in Sudbury are highest in November, averaging 4.8 m/s (17 km/h), and lightest in July, at 3.6 m/s (13 km/h). The prevailing wind is from the W.
What is the average temperature in Sudbury year round?
The average temperature in Sudbury over the whole year is 6°C. July is the hottest month, with highs of about 23°C; February is the coldest, with lows of about -10°C.