Sudbury weather by month

Check out Sudbury weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Sudbury (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	-7	-6	1	9	17	22	25	23	18	12	3	-5
Min temperature (night-time)	-18	-17	-10	-2	5	10	13	12	8	3	-4	-13
Heat & Humidity	0	0	0	0	0	0	0	0	0	0	0	0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Sudbury

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	3	4	5	6	7	8	9	8	5	4	2	2
Daily hours of daylight	9	10	12	14	15	16	15	14	13	11	9	9
UV Index (Maximum)	1	2	3	5	6	7	7	7	5	3	1	1

Rainfall in Sudbury

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	13	10	9	9	10	11	9	11	12	11	12	13
Average monthly rainfall (mm)	63	49	50	55	63	70	66	82	97	69	72	66

More about Sudbury

Sudbury by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Ontario (Sudbury) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Sudbury?

Sudbury has a cold climate with warm summers and some rainfall in all months.

Sudbury weather in January

Expect daytime maximum temperatures of -7°C in Sudbury, Ontario in January based on long-term weather averages. There are 3 hours of sunshine per day on average with 13 days with some rainfall and typically 63 mm of rainfall in the month, which might fall as snow.

-7
-7°C max day temperature
3
3 hours of sunshine per day
13
13 days with some rainfall
-18
-18°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
63
63 mm of monthly rainfall
1
1 (Low) UV index

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Sudbury weather in February

Expect daytime maximum temperatures of -6°C in Sudbury, Ontario in February based on long-term weather averages. There are 4 hours of sunshine per day on average with 10 days with some rainfall and typically 49 mm of rainfall in the month, which might fall as snow.

-6
-6°C max day temperature
4
4 hours of sunshine per day
10
10 days with some rainfall
-17
-17°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
49
49 mm of monthly rainfall
2
2 (Low) UV index

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Sudbury weather in March

Expect daytime maximum temperatures of 1°C in Sudbury, Ontario in March based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 50 mm of rainfall in the month, which might fall as snow.

1
1°C max day temperature
5
5 hours of sunshine per day
9
9 days with some rainfall
-10
-10°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
50
50 mm of monthly rainfall
3
3 (Moderate) UV index

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Sudbury weather in April

Expect daytime maximum temperatures of 9°C in Sudbury, Ontario in April based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 55 mm of rainfall in the month.

9
9°C max day temperature
6
6 hours of sunshine per day
9
9 days with some rainfall
-2
-2°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
55
55 mm of monthly rainfall
5
5 (Moderate) UV index

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Sudbury weather in May

Expect daytime maximum temperatures of 17°C in Sudbury, Ontario in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 10 days with some rainfall and typically 63 mm of rainfall in the month.

17
17°C max day temperature
7
7 hours of sunshine per day
10
10 days with some rainfall
5
5°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
63
63 mm of monthly rainfall
6
6 (High) UV index

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Sudbury weather in June

Expect daytime maximum temperatures of 22°C in Sudbury, Ontario in June based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 70 mm of rainfall in the month.

22
22°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
10
10°C min night temperature
16
16 hours of daylight per day
0
No heat & humidity
70
70 mm of monthly rainfall
7
7 (High) UV index

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Sudbury weather in July

Expect daytime maximum temperatures of 25°C in Sudbury, Ontario in July based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 66 mm of rainfall in the month.

25
25°C max day temperature
9
9 hours of sunshine per day
9
9 days with some rainfall
13
13°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
66
66 mm of monthly rainfall
7
7 (High) UV index

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Sudbury weather in August

Expect daytime maximum temperatures of 23°C in Sudbury, Ontario in August based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 82 mm of rainfall in the month.

23
23°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
12
12°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
82
82 mm of monthly rainfall
7
7 (High) UV index

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Sudbury weather in September

Expect daytime maximum temperatures of 18°C in Sudbury, Ontario in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 97 mm of rainfall in the month.

18
18°C max day temperature
5
5 hours of sunshine per day
12
12 days with some rainfall
8
8°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
97
97 mm of monthly rainfall
5
5 (Moderate) UV index

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Sudbury weather in October

Expect daytime maximum temperatures of 12°C in Sudbury, Ontario in October based on long-term weather averages. There are 4 hours of sunshine per day on average with 11 days with some rainfall and typically 69 mm of rainfall in the month.

12
12°C max day temperature
4
4 hours of sunshine per day
11
11 days with some rainfall
3
3°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
69
69 mm of monthly rainfall
3
3 (Moderate) UV index

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Sudbury weather in November

Expect daytime maximum temperatures of 3°C in Sudbury, Ontario in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 12 days with some rainfall and typically 72 mm of rainfall in the month, which might fall as snow.

3
3°C max day temperature
2
2 hours of sunshine per day
12
12 days with some rainfall
-4
-4°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
72
72 mm of monthly rainfall
1
1 (Low) UV index

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Sudbury weather in December

Expect daytime maximum temperatures of -5°C in Sudbury, Ontario in December based on long-term weather averages. There are 2 hours of sunshine per day on average with 13 days with some rainfall and typically 66 mm of rainfall in the month, which might fall as snow.

-5
-5°C max day temperature
2
2 hours of sunshine per day
13
13 days with some rainfall
-13
-13°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
66
66 mm of monthly rainfall
1
1 (Low) UV index

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