Hamilton Average Weather by Day
Data and chart of the the average high and low temperature for every day of the year in
Hamilton, Ontario , based on NOAA data.
Change city
What's the hottest day of the year in Hamilton?
On average, July 19 is the hottest day of the year Hamilton, Ontario. From 1991–2020, the average high temperature on July 19 was 27.5 °C and the average low was 15.9 °C.
What's the coldest day of the year in Hamilton?
On average, January 30 is the coldest day of the year Hamilton, Ontario. From 1991–2020, the average high temperature on January 30 was -0.6 °C, and the average low was -9.0 °C.
Average Temperature by Day
Average temperatures from 1991–2020. Daily averages are a mean of the period from 14 days before to 14 days after, inclusive.
Day
Average (°C)
High
Low
January 1
1.1
-6.1
January 2
1.0
-6.2
January 3
0.9
-6.3
January 4
0.8
-6.4
January 5
0.7
-6.6
January 6
0.6
-6.8
January 7
0.4
-7.1
January 8
0.3
-7.2
January 9
0.3
-7.3
January 10
0.2
-7.4
January 11
0.1
-7.5
January 12
-0.1
-7.6
January 13
-0.2
-7.8
January 14
-0.2
-7.9
January 15
-0.3
-8.0
January 16
-0.4
-8.2
January 17
-0.4
-8.2
January 18
-0.4
-8.3
January 19
-0.5
-8.4
January 20
-0.5
-8.5
January 21
-0.5
-8.5
January 22
-0.5
-8.6
January 23
-0.5
-8.6
January 24
-0.5
-8.6
January 25
-0.5
-8.6
January 26
-0.5
-8.7
January 27
-0.6
-8.8
January 28
-0.7
-8.9
January 29
-0.7
-8.9
January 30
-0.6
-9.0
January 31
-0.6
-8.9
February 1
-0.6
-8.9
February 2
-0.5
-9.0
February 3
-0.5
-8.9
February 4
-0.4
-8.9
February 5
-0.2
-8.7
February 6
-0.1
-8.6
February 7
0.0
-8.5
February 8
0.1
-8.4
February 9
0.2
-8.3
February 10
0.3
-8.3
February 11
0.4
-8.2
February 12
0.4
-8.1
February 13
0.5
-8.1
February 14
0.6
-8.0
February 15
0.7
-7.9
February 16
0.8
-7.8
February 17
0.8
-7.8
February 18
0.8
-7.8
February 19
0.9
-7.7
February 20
1.0
-7.6
February 21
1.2
-7.5
February 22
1.3
-7.4
February 23
1.5
-7.3
February 24
1.6
-7.2
February 25
1.7
-7.1
February 26
1.9
-6.9
February 27
2.1
-6.7
February 28
2.4
-6.5
March 1
2.6
-6.3
March 2
2.8
-6.1
March 3
3.0
-6.0
March 4
3.1
-5.8
March 5
3.3
-5.6
March 6
3.4
-5.5
March 7
3.5
-5.4
March 8
3.6
-5.3
March 9
3.8
-5.2
March 10
3.9
-5.0
March 11
4.1
-4.9
March 12
4.3
-4.7
March 13
4.6
-4.5
March 14
4.8
-4.3
March 15
5.1
-4.0
March 16
5.3
-3.8
March 17
5.6
-3.6
March 18
5.8
-3.3
March 19
6.1
-3.1
March 20
6.3
-2.8
March 21
6.5
-2.7
March 22
6.6
-2.5
March 23
6.8
-2.4
March 24
7.0
-2.2
March 25
7.2
-2.0
March 26
7.4
-1.8
March 27
7.7
-1.6
March 28
7.8
-1.4
March 29
8.0
-1.3
March 30
8.2
-1.1
March 31
8.4
-1.0
April 1
8.7
-0.7
April 2
9.0
-0.5
April 3
9.2
-0.3
April 4
9.5
-0.1
April 5
9.9
0.1
April 6
10.1
0.3
April 7
10.4
0.5
April 8
10.6
0.7
April 9
10.8
0.9
April 10
11.1
1.1
April 11
11.2
1.3
April 12
11.4
1.4
April 13
11.6
1.5
April 14
11.7
1.7
April 15
11.9
1.7
April 16
12.1
1.9
April 17
12.3
2.1
April 18
12.6
2.3
April 19
12.9
2.5
April 20
13.2
2.8
April 21
13.5
3.0
April 22
13.8
3.2
April 23
14.0
3.4
April 24
14.2
3.6
April 25
14.4
3.8
April 26
14.7
4.0
April 27
15.0
4.2
April 28
15.2
4.4
April 29
15.3
4.6
April 30
15.5
4.8
May 1
15.6
4.9
May 2
15.8
5.0
May 3
15.9
5.1
May 4
16.0
5.2
May 5
16.2
5.4
May 6
16.4
5.5
May 7
16.6
5.6
May 8
16.8
5.8
May 9
17.1
6.0
May 10
17.4
6.2
May 11
17.6
6.5
May 12
17.8
6.7
May 13
18.1
6.9
May 14
18.4
7.2
May 15
18.6
7.4
May 16
18.9
7.6
May 17
19.2
7.8
May 18
19.3
8.0
May 19
19.5
8.2
May 20
19.7
8.3
May 21
19.8
8.4
May 22
20.0
8.6
May 23
20.2
8.8
May 24
20.4
8.9
May 25
20.5
9.1
May 26
20.7
9.2
May 27
21.0
9.4
May 28
21.3
9.7
May 29
21.4
9.9
May 30
21.6
10.1
May 31
21.9
10.3
June 1
22.1
10.5
June 2
22.3
10.7
June 3
22.5
10.9
June 4
22.7
11.2
June 5
22.9
11.4
June 6
23.1
11.6
June 7
23.2
11.7
June 8
23.4
11.9
June 9
23.6
12.0
June 10
23.7
12.2
June 11
23.9
12.4
June 12
24.1
12.6
June 13
24.2
12.7
June 14
24.3
12.9
June 15
24.4
13.0
June 16
24.6
13.1
June 17
24.7
13.3
June 18
24.9
13.4
June 19
25.1
13.6
June 20
25.3
13.8
June 21
25.5
13.9
June 22
25.6
14.0
June 23
25.8
14.2
June 24
25.9
14.4
June 25
26.0
14.5
June 26
26.1
14.5
June 27
26.2
14.6
June 28
26.3
14.6
June 29
26.4
14.7
June 30
26.5
14.8
July 1
26.7
15.0
July 2
26.8
15.0
July 3
26.9
15.1
July 4
27.0
15.2
July 5
27.1
15.3
July 6
27.1
15.4
July 7
27.2
15.5
July 8
27.2
15.6
July 9
27.3
15.7
July 10
27.3
15.7
July 11
27.3
15.6
July 12
27.3
15.7
July 13
27.3
15.7
July 14
27.3
15.7
July 15
27.3
15.7
July 16
27.4
15.8
July 17
27.4
15.8
July 18
27.5
15.9
July 19
27.5
15.9
July 20
27.5
16.0
July 21
27.4
16.0
July 22
27.4
15.9
July 23
27.3
15.8
July 24
27.3
15.8
July 25
27.3
15.8
July 26
27.3
15.9
July 27
27.3
15.9
July 28
27.3
15.9
July 29
27.3
15.9
July 30
27.2
15.9
July 31
27.1
15.8
August 1
27.1
15.7
August 2
27.0
15.7
August 3
27.0
15.7
August 4
27.0
15.7
August 5
26.9
15.6
August 6
26.8
15.5
August 7
26.8
15.4
August 8
26.8
15.4
August 9
26.7
15.4
August 10
26.7
15.3
August 11
26.7
15.3
August 12
26.7
15.3
August 13
26.6
15.3
August 14
26.6
15.3
August 15
26.5
15.2
August 16
26.4
15.1
August 17
26.3
15.0
August 18
26.3
14.9
August 19
26.2
14.8
August 20
26.2
14.8
August 21
26.1
14.8
August 22
26.1
14.7
August 23
26.0
14.6
August 24
26.0
14.6
August 25
25.8
14.5
August 26
25.7
14.5
August 27
25.6
14.4
August 28
25.5
14.2
August 29
25.4
14.1
August 30
25.3
14.0
August 31
25.1
13.9
September 1
25.0
13.7
September 2
24.8
13.6
September 3
24.8
13.5
September 4
24.7
13.3
September 5
24.5
13.1
September 6
24.4
13.0
September 7
24.2
12.9
September 8
24.1
12.7
September 9
23.9
12.5
September 10
23.7
12.2
September 11
23.5
12.0
September 12
23.3
11.8
September 13
23.1
11.7
September 14
22.9
11.5
September 15
22.7
11.3
September 16
22.4
11.1
September 17
22.2
10.9
September 18
21.9
10.7
September 19
21.7
10.5
September 20
21.5
10.4
September 21
21.2
10.1
September 22
20.9
9.9
September 23
20.8
9.7
September 24
20.6
9.5
September 25
20.4
9.3
September 26
20.3
9.1
September 27
20.0
9.0
September 28
19.8
8.7
September 29
19.5
8.5
September 30
19.3
8.3
October 1
19.1
8.1
October 2
18.8
7.9
October 3
18.5
7.7
October 4
18.3
7.6
October 5
18.1
7.4
October 6
17.8
7.2
October 7
17.6
7.1
October 8
17.3
6.9
October 9
17.0
6.7
October 10
16.8
6.6
October 11
16.5
6.4
October 12
16.3
6.2
October 13
16.0
6.0
October 14
15.8
5.8
October 15
15.5
5.7
October 16
15.3
5.5
October 17
15.1
5.3
October 18
14.8
5.1
October 19
14.6
4.9
October 20
14.4
4.7
October 21
14.1
4.5
October 22
13.9
4.4
October 23
13.7
4.2
October 24
13.4
4.0
October 25
13.1
3.8
October 26
13.0
3.7
October 27
12.8
3.5
October 28
12.5
3.4
October 29
12.3
3.2
October 30
12.0
3.0
October 31
11.9
2.9
November 1
11.7
2.8
November 2
11.4
2.6
November 3
11.1
2.5
November 4
10.9
2.3
November 5
10.7
2.1
November 6
10.6
1.9
November 7
10.3
1.8
November 8
10.1
1.6
November 9
9.9
1.3
November 10
9.6
1.1
November 11
9.4
1.0
November 12
9.3
0.9
November 13
9.1
0.8
November 14
8.9
0.7
November 15
8.7
0.6
November 16
8.5
0.5
November 17
8.3
0.4
November 18
8.2
0.3
November 19
8.0
0.2
November 20
7.8
0.0
November 21
7.5
-0.1
November 22
7.3
-0.3
November 23
7.0
-0.5
November 24
6.7
-0.7
November 25
6.5
-0.9
November 26
6.2
-1.0
November 27
6.0
-1.2
November 28
5.8
-1.4
November 29
5.6
-1.6
November 30
5.4
-1.8
December 1
5.3
-1.9
December 2
5.1
-2.0
December 3
4.9
-2.1
December 4
4.7
-2.3
December 5
4.5
-2.5
December 6
4.3
-2.7
December 7
4.2
-2.8
December 8
4.0
-2.8
December 9
3.9
-2.9
December 10
3.7
-3.1
December 11
3.5
-3.3
December 12
3.3
-3.4
December 13
3.2
-3.6
December 14
3.1
-3.8
December 15
2.9
-3.9
December 16
2.7
-4.1
December 17
2.6
-4.2
December 18
2.5
-4.4
December 19
2.3
-4.6
December 20
2.2
-4.7
December 21
2.1
-4.8
December 22
2.1
-4.8
December 23
2.0
-4.9
December 24
1.9
-5.0
December 25
1.7
-5.2
December 26
1.7
-5.3
December 27
1.6
-5.4
December 28
1.5
-5.5
December 29
1.5
-5.6
December 30
1.4
-5.7
December 31
1.3
-5.9
Weather Station Details
Years
Station
Coordinates
1997–2024
Hamilton RBG CS
location
1955–1997
Hamilton RBG
location
1866–1954
Hamilton
location