Ottawa Weather Averages

Climate averages for Ottawa based on 10 years of historical data.

Average Ottawa temperatures by month

Avg high

-4°

J

-3°

F

2°

M

10°

A

19°

M

23°

J

26°

J

25°

A

22°

S

14°

O

6°

N

0°

D

Avg low

-13°

J

-13°

F

-7°

M

1°

A

8°

M

13°

J

16°

J

16°

A

12°

S

6°

O

-1°

N

-6°

D

Average rainfall in Ottawa by month

Rainfall (mm)

77

J

75

F

80

M

110

A

90

M

119

J

121

J

121

A

82

S

111

O

82

N

97

D

Sunshine hours in Ottawa by month

Sunshine (h/day)

2

J

1

F

2

M

3

A

5

M

5

J

5

J

4

A

4

S

3

O

2

N

2

D

Humidity in Ottawa by month

Average humidity

90%

J

89%

F

83%

M

76%

A

75%

M

78%

J

76%

J

77%

A

75%

S

77%

O

80%

N

85%

D

Month-by-month averages

Month	Avg High	Avg Low	Rainfall	Sunshine
Pogoda w styczniu	-4°C	-13°C	77 mm	1.6h
Pogoda w lutym	-3°C	-13°C	75 mm	1.4h
Pogoda w marcu	2°C	-7°C	80 mm	2.1h
Pogoda w kwietniu	10°C	1°C	110 mm	2.7h
Pogoda w maju	19°C	8°C	90 mm	4.6h
Pogoda w czerwcu	23°C	13°C	119 mm	4.6h
Pogoda w lipcu	26°C	16°C	121 mm	5.0h
Pogoda w sierpniu	25°C	16°C	121 mm	3.8h
Pogoda we wrześniu	22°C	12°C	82 mm	4.5h
Pogoda w październiku	14°C	6°C	111 mm	2.6h
Pogoda w listopadzie	6°C	-1°C	82 mm	2.0h
Pogoda w grudniu	0°C	-6°C	97 mm	1.6h