Cornwall Record High by Day of the Year
Data for the record high temperature for each day of the year in
Cornwall, Ontario , as well as the year that the record was set. It is based on NOAA data for the years 1867–2024.
Change city
Day
Record High
Year Set or Tied
January 1
11.0
2011
January 2
12.0
2000
January 3
9.4
1874
January 4
16.7
1874
January 5
16.7
1874
January 6
12.0
2007
January 7
12.5
2008
January 8
14.0
2008
January 9
13.0
2008
January 10
9.0
2020
January 11
15.6
1975
January 12
14.0
2018
January 13
16.0
2005
January 14
6.1
1967
January 15
17.5
1995
January 16
11.7
1873
January 17
11.7
1873
January 18
15.5
1996
January 19
18.0
1996
January 20
8.0
2006
January 21
13.9
1959
January 22
11.7
1957
January 23
12.5
1999
January 24
11.0
1999
January 25
13.3
1967
January 26
9.4
1976
January 27
12.0
1996
January 28
10.0
2002
January 29
7.2
1970
January 30
17.0
2013
January 31
14.0
1988
February 1
9.0
1988
February 2
10.6
1968
February 3
11.0
2016
February 4
10.5
1991
February 5
10.6
1962
February 6
6.7
1953
February 7
10.0
2019
February 8
10.5
1990
February 9
12.5
2024
February 10
10.5
2024
February 11
12.0
1981
February 12
14.0
1999
February 13
10.5
1990
February 14
15.0
1984
February 15
13.0
2023
February 16
12.8
1882
February 17
10.6
1883
February 18
13.0
2011
February 19
14.0
1994
February 20
16.0
1994
February 21
15.6
1953
February 22
14.0
1981
February 23
16.5
2017
February 24
12.0
1984
February 25
10.0
2018
February 26
13.0
2002
February 27
21.0
2024
February 28
19.0
2024
March 1
10.0
1882
March 2
15.0
1991
March 3
14.0
2002
March 4
13.0
2024
March 5
17.2
1964
March 6
16.5
2022
March 7
15.5
2012
March 8
16.0
2000, 2012
March 9
21.0
2000
March 10
13.5
1992, 2006
March 11
17.0
2021
March 12
18.9
1977
March 13
17.0
1995
March 14
19.0
1995
March 15
14.0
1989
March 16
16.0
1990
March 17
20.0
1868
March 18
24.0
2012
March 19
24.0
2012
March 20
25.0
2012
March 21
26.0
2012
March 22
25.0
2012
March 23
21.5
1979
March 24
18.0
1979, 1987
March 25
21.0
1996
March 26
22.0
1986
March 27
21.7
1976
March 28
21.0
1998
March 29
20.0
1962, 1977
March 30
25.6
1977
March 31
26.0
1998
April 1
27.0
1986
April 2
26.0
2010
April 3
29.5
2010
April 4
25.0
1981
April 5
18.0
2010
April 6
23.0
1997
April 7
24.5
1991
April 8
22.0
1981, 2021
April 9
25.0
2021
April 10
26.0
2017
April 11
24.5
2011
April 12
25.0
2006
April 13
25.5
2015
April 14
30.0
1869
April 15
25.0
2003
April 16
29.0
2002
April 17
29.5
2002
April 18
28.9
1976
April 19
28.9
1976
April 20
28.0
1987
April 21
27.5
1987
April 22
26.7
1885
April 23
27.8
1885
April 24
25.6
1877
April 25
29.0
2009
April 26
29.0
1990
April 27
31.0
2009
April 28
27.8
1962
April 29
27.5
1990
April 30
27.0
2004
May 1
29.0
2001
May 2
29.5
2001
May 3
30.0
2001
May 4
28.3
1955
May 5
28.3
1955
May 6
29.0
1999
May 7
30.0
1982
May 8
30.0
2015
May 9
30.0
1880, 2015
May 10
30.6
1887
May 11
29.0
2022
May 12
31.5
2022
May 13
30.0
2022
May 14
31.5
2022
May 15
32.0
2014
May 16
31.5
1998
May 17
30.6
1962
May 18
32.2
1962
May 19
31.1
1962
May 20
32.0
2012
May 21
32.0
2021
May 22
30.6
1887
May 23
31.7
1975
May 24
31.5
2007
May 25
32.0
2010
May 26
35.0
2010
May 27
35.0
2020
May 28
32.0
2016
May 29
32.0
2012
May 30
32.0
1987
May 31
35.6
1869
June 1
34.5
2023
June 2
33.0
2023
June 3
33.3
1869, 1870
June 4
34.4
1870
June 5
30.0
2020, 2021
June 6
32.8
1870
June 7
33.0
1999, 2021
June 8
31.5
2011
June 9
31.0
2008, 2019
June 10
31.0
2020
June 11
32.5
1996
June 12
32.0
1999
June 13
32.0
1983
June 14
33.5
2001
June 15
34.0
2001
June 16
33.5
1994
June 17
34.5
1994
June 18
35.6
1870
June 19
32.5
1995, 2001, 2007, 2020
June 20
33.5
2012
June 21
34.0
2020
June 22
35.0
2020
June 23
34.0
2020
June 24
33.9
1870
June 25
33.9
1870
June 26
33.5
2007, 2022
June 27
35.0
1870
June 28
33.5
1991
June 29
33.3
1878, 1959
June 30
35.0
1964
July 1
35.0
1963, 2018
July 2
35.0
1868, 2018
July 3
34.4
1868
July 4
35.0
1868, 2018
July 5
35.0
2018
July 6
34.0
1993, 2010, 2023
July 7
35.0
2020
July 8
34.5
2010
July 9
36.0
2020
July 10
37.5
2020
July 11
34.5
2012
July 12
35.0
1987
July 13
35.6
1868
July 14
37.8
1868
July 15
36.7
1868
July 16
35.5
2018
July 17
34.0
1990
July 18
33.9
1870
July 19
34.0
1991
July 20
34.5
1991
July 21
35.0
1955, 2011
July 22
35.6
1955
July 23
35.6
1955
July 24
33.0
1987, 2001
July 25
36.1
1870
July 26
34.0
2021
July 27
33.3
1963
July 28
32.8
1963
July 29
33.5
2015
July 30
32.8
1887, 1959
July 31
33.3
1955
August 1
35.6
1975
August 2
35.0
1955, 1975
August 3
35.0
1988
August 4
35.5
2012
August 5
35.0
1955
August 6
35.0
1955
August 7
34.5
2001
August 8
36.5
2001
August 9
35.0
1867, 2001
August 10
33.0
1985, 2021
August 11
34.0
2016
August 12
33.5
2002
August 13
33.5
1988
August 14
36.0
2002
August 15
33.0
1995
August 16
33.0
1987
August 17
33.5
2009
August 18
33.9
1884
August 19
35.0
1884
August 20
32.0
2016
August 21
34.4
1884
August 22
34.0
2019
August 23
33.3
1877
August 24
31.7
1880
August 25
33.0
2012
August 26
32.0
1993, 2021
August 27
32.2
1953
August 28
33.3
1953
August 29
33.3
1953
August 30
32.8
1953, 1973
August 31
35.0
1881
September 1
32.2
1953
September 2
32.2
1953, 1973
September 3
33.0
1999, 2002, 2010, 2018
September 4
34.5
1999
September 5
34.0
2018
September 6
33.0
2023
September 7
33.0
2007
September 8
33.5
2002
September 9
34.5
2002
September 10
33.0
2002
September 11
31.0
2013
September 12
29.4
1952
September 13
31.1
1951
September 14
31.1
1951
September 15
32.0
2018
September 16
30.0
1991, 2018
September 17
30.0
2018
September 18
30.0
2015
September 19
30.0
1955
September 20
31.0
1983
September 21
29.4
1965
September 22
31.7
1965
September 23
31.0
2017
September 24
31.0
2017
September 25
32.5
2017
September 26
30.0
2017
September 27
31.0
2017
September 28
29.4
1959
September 29
28.9
1959
September 30
30.0
1881
October 1
27.8
1877
October 2
27.8
1968
October 3
29.5
2023
October 4
31.5
2023
October 5
30.0
2023
October 6
28.0
2005
October 7
27.2
1879
October 8
26.0
2004
October 9
28.0
2018
October 10
27.2
1883
October 11
25.6
1969
October 12
25.6
1880
October 13
27.0
1995
October 14
27.0
2001, 2014
October 15
26.1
1956
October 16
25.6
1962, 1968
October 17
25.6
1878
October 18
27.5
1998
October 19
27.0
2007
October 20
24.5
1995
October 21
25.0
1867, 1979
October 22
27.0
1979
October 23
27.0
1979
October 24
24.4
1963
October 25
25.6
1963
October 26
26.5
2022
October 27
23.0
2023
October 28
24.0
1984
October 29
21.0
1982, 1989
October 30
22.0
1989
October 31
22.5
1989
November 1
21.0
2001
November 2
22.8
1971
November 3
23.9
1961
November 4
22.0
2022
November 5
25.0
2022
November 6
22.5
2015
November 7
23.9
1975
November 8
21.0
2020
November 9
22.0
2020
November 10
24.0
2020
November 11
21.5
2002
November 12
23.0
2012
November 13
19.0
2005
November 14
20.6
1959
November 15
18.5
1989
November 16
20.0
1989
November 17
19.0
1987
November 18
19.5
1994
November 19
18.5
2001
November 20
20.0
1985, 1991
November 21
16.7
1883
November 22
21.1
1953
November 23
18.3
1963
November 24
21.0
2014
November 25
19.5
2001
November 26
16.0
1979
November 27
18.5
1988, 1990
November 28
22.5
1990
November 29
20.5
2005
November 30
19.5
2006
December 1
18.0
2010
December 2
11.5
1982, 1998
December 3
18.0
1982
December 4
19.0
2012
December 5
20.0
2001
December 6
18.0
1998
December 7
17.8
1951
December 8
17.8
1951
December 9
16.1
1966
December 10
12.8
1952
December 11
15.0
2021
December 12
13.0
1979
December 13
12.5
1991
December 14
13.9
1975
December 15
12.2
1975
December 16
17.5
2021
December 17
14.5
2000
December 18
8.0
2023
December 19
11.7
1957
December 20
16.7
1957
December 21
13.3
1967
December 22
11.7
1967
December 23
18.5
2015
December 24
19.0
2015
December 25
16.0
1982
December 26
11.7
1964
December 27
15.0
2008
December 28
16.5
2008
December 29
12.0
1984
December 30
12.5
2022
December 31
14.4
1965
Years with the Most Daily Records
Which years set the greatest number of daily high temperature records in Cornwall history?
Rank
Year
Records Set
1
2012
15
2
2001
15
3
2020
14
4
2018
13
5
2002
12
6
2021
11
7
2023
10
8
2022
10
9
1955
10
10
2010
9
Daily Records by Decade
This table shows the number of daily high temperature records in Cornwall that were set in each decade since 1867.
Decade
Records Set
1860s
12
1870s
20
1880s
18
1950s
35
1960s
29
1970s
25
1980s
38
1990s
52
2000s
57
2010s
69
2020s
50
Weather Station Details
Years
Station
Coordinates
1950–2024
Cornwall
location
1867–1887
Cornwall
location