Cornwall Record Low by Day of the Year

Data for the record low 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.

Also see:

Day	Record Low	Year Set or Tied
January 1	-29.4	1956
January 2	-30.0	1956
January 3	-32.0	1981
January 4	-35.0	1981
January 5	-27.8	1882
January 6	-31.7	1878
January 7	-31.7	1878
January 8	-34.4	1878
January 9	-34.4	1887
January 10	-29.4	1883
January 11	-31.1	1954
January 12	-31.1	1886
January 13	-28.3	1877
January 14	-29.4	1957
January 15	-43.3	1957
January 16	-32.0	1994
January 17	-34.4	1957
January 18	-31.0	1997
January 19	-30.0	1994
January 20	-27.2	1975
January 21	-28.0	2005
January 22	-30.0	1885
January 23	-31.7	1871
January 24	-33.9	1882
January 25	-28.3	1871
January 26	-32.8	1874
January 27	-30.0	1994
January 28	-27.8	1955
January 29	-32.8	1954
January 30	-32.2	1874
January 31	-29.4	1951, 1973
February 1	-32.8	1874
February 2	-36.1	1874
February 3	-33.9	1885
February 4	-31.1	1886, 1956
February 5	-31.7	1886
February 6	-28.9	1874
February 7	-31.0	1993
February 8	-33.3	1868
February 9	-32.2	1959
February 10	-35.6	1951
February 11	-35.6	1868
February 12	-29.4	1967
February 13	-33.9	1954
February 14	-28.0	2016
February 15	-31.7	1879
February 16	-27.0	2003
February 17	-28.0	1979
February 18	-28.0	1979
February 19	-26.1	1879
February 20	-26.7	1966
February 21	-24.4	1886, 1968
February 22	-26.7	1868
February 23	-29.4	1972
February 24	-28.9	1883
February 25	-32.2	1879
February 26	-26.1	1970
February 27	-24.4	1886
February 28	-32.2	1879
March 1	-27.8	1886
March 2	-28.3	1884
March 3	-27.0	2003
March 4	-22.2	1872, 1883
March 5	-30.6	1872
March 6	-25.0	1872
March 7	-25.0	1989
March 8	-23.9	1879, 1883
March 9	-22.2	1885
March 10	-25.6	1886
March 11	-23.9	1885
March 12	-28.3	1885
March 13	-32.2	1885
March 14	-21.1	1885
March 15	-21.5	1993
March 16	-18.9	1872, 1883
March 17	-21.7	1885
March 18	-24.4	1885
March 19	-23.3	1956
March 20	-22.2	1872
March 21	-24.4	1883
March 22	-21.7	1885
March 23	-25.0	1883
March 24	-22.2	1883
March 25	-18.9	1880
March 26	-19.4	1880
March 27	-16.7	1887
March 28	-17.2	1873
March 29	-17.2	1974
March 30	-16.1	1887
March 31	-14.4	1887
April 1	-18.3	1887
April 2	-16.1	1887
April 3	-15.0	1954
April 4	-15.0	1954
April 5	-14.5	1995
April 6	-12.8	1868, 1871
April 7	-13.5	1982
April 8	-13.3	1972
April 9	-11.7	1868, 1885
April 10	-13.9	1868
April 11	-9.4	1885
April 12	-10.0	1976
April 13	-8.3	1973
April 14	-7.2	1868
April 15	-6.7	1957, 1971
April 16	-7.0	2014
April 17	-7.0	1985, 2003
April 18	-4.4	1885
April 19	-9.4	1887
April 20	-4.0	2020
April 21	-7.0	1981
April 22	-7.0	1986
April 23	-5.6	1872
April 24	-5.6	1867
April 25	-6.1	1956
April 26	-4.4	1882
April 27	-6.7	1966
April 28	-3.9	1868
April 29	-8.3	1867
April 30	-5.0	1978
May 1	-6.1	1868
May 2	-3.9	1867
May 3	-5.6	1867
May 4	-4.4	1867
May 5	-5.6	1952
May 6	-3.9	1958
May 7	-5.6	1966
May 8	-5.6	1956
May 9	-3.9	1956
May 10	-2.8	1966
May 11	-1.7	1956
May 12	0.0	1868
May 13	-2.8	1867
May 14	-1.1	1958
May 15	-1.1	1880
May 16	-1.1	1882, 1957
May 17	-4.4	1957
May 18	0.0	2023
May 19	0.6	1976
May 20	-1.7	1956
May 21	-1.1	1957
May 22	0.6	1869
May 23	-0.6	1870
May 24	-4.4	1956
May 25	-2.8	1956
May 26	-1.1	1956
May 27	-1.7	1954
May 28	1.0	2021
May 29	-0.6	1884
May 30	-1.1	1884
May 31	2.2	1961
June 1	1.0	1984
June 2	2.8	1872
June 3	3.0	1986
June 4	0.6	1953
June 5	1.7	1964
June 6	1.1	1881, 1958
June 7	1.7	1869
June 8	1.7	1879
June 9	2.0	1980
June 10	2.5	1995
June 11	2.8	1972
June 12	5.0	1873, 1980
June 13	5.6	1867, 1882, 1952
June 14	5.6	1953, 1959
June 15	2.8	1884
June 16	3.3	1952, 1964
June 17	3.9	1881
June 18	3.3	1958
June 19	1.7	1956
June 20	5.6	1952
June 21	2.5	1986
June 22	4.4	1873
June 23	4.4	1873
June 24	5.6	1871
June 25	6.5	1979
June 26	6.1	1878
June 27	7.2	1881
June 28	7.8	1952
June 29	5.0	1988
June 30	6.1	1882
July 1	5.6	1952
July 2	6.5	1992
July 3	4.0	1982
July 4	5.6	1954
July 5	5.6	1956
July 6	6.7	1962
July 7	8.3	1873
July 8	7.2	1954
July 9	8.3	1883
July 10	5.6	1954
July 11	5.6	1954
July 12	6.7	1873
July 13	5.0	1867
July 14	8.3	1877
July 15	7.8	1867
July 16	7.2	1954
July 17	7.2	1954
July 18	7.2	1956
July 19	7.2	1879
July 20	7.2	1879
July 21	8.3	1958
July 22	9.0	1992
July 23	9.4	1962
July 24	10.5	2002
July 25	4.4	1953
July 26	7.2	1956
July 27	6.7	1956
July 28	9.4	1880
July 29	5.6	1955
July 30	3.3	1952
July 31	4.4	1867
August 1	4.4	1953
August 2	3.3	1956
August 3	5.6	1956
August 4	7.8	1951, 1972
August 5	2.8	1951
August 6	5.0	1951
August 7	5.0	1957
August 8	7.2	1955
August 9	6.1	1955
August 10	6.7	1873, 1879
August 11	7.2	1968
August 12	7.8	1873
August 13	6.7	1887, 1957
August 14	8.3	1869, 1871, 1964
August 15	3.3	1879
August 16	4.4	1879
August 17	6.1	1868
August 18	5.0	1868
August 19	5.6	1951, 1952
August 20	4.4	1953
August 21	3.9	1953
August 22	1.7	1957
August 23	2.2	1957
August 24	4.4	1873
August 25	4.4	1884
August 26	3.9	1880
August 27	3.9	1883
August 28	1.7	1957
August 29	2.8	1957
August 30	4.4	1965
August 31	3.9	1867
September 1	3.9	1869
September 2	3.9	1967
September 3	3.9	1872
September 4	3.3	1872
September 5	3.9	1951
September 6	3.9	1873, 1951
September 7	0.6	1873
September 8	-1.1	1952
September 9	0.0	1956
September 10	0.6	1885
September 11	0.0	1883, 1885
September 12	2.2	1870, 1967
September 13	1.1	1963
September 14	-1.7	1884
September 15	-0.6	1873
September 16	-2.8	1867
September 17	-0.6	1873, 1887
September 18	-1.7	1873
September 19	-1.0	2014
September 20	1.1	1885
September 21	-1.1	1871
September 22	-1.1	1868
September 23	-3.9	1955
September 24	-3.3	1953
September 25	-1.1	1885
September 26	-0.6	1951, 1955
September 27	-1.1	1869, 1952, 1956, 1965
September 28	-4.4	1956
September 29	-2.8	1956
September 30	-6.1	1951
October 1	-3.9	1868
October 2	-3.3	1955
October 3	-1.7	1882
October 4	-5.0	1867
October 5	-4.4	1881
October 6	-4.4	1956
October 7	-4.4	1964
October 8	-3.3	1885, 1953, 1964
October 9	-3.3	1885
October 10	-6.5	1989
October 11	-7.2	1952
October 12	-7.2	1956
October 13	-6.7	1951
October 14	-6.7	1953
October 15	-6.1	1887
October 16	-5.6	1883
October 17	-6.7	1886
October 18	-6.7	1952
October 19	-5.0	1956, 2015
October 20	-6.7	1952
October 21	-6.7	1957
October 22	-5.6	1951
October 23	-6.7	1868
October 24	-5.6	1868
October 25	-6.7	1879
October 26	-8.3	1877, 1956
October 27	-8.9	1877
October 28	-7.2	1869, 1880
October 29	-5.6	1959, 1965
October 30	-9.4	1868
October 31	-6.1	1885
November 1	-7.2	1879
November 2	-12.2	1879
November 3	-9.0	2002
November 4	-12.8	1879
November 5	-11.1	1879
November 6	-20.0	1951
November 7	-12.8	1867
November 8	-8.3	1886
November 9	-10.6	1887
November 10	-10.6	1956
November 11	-11.1	1957
November 12	-8.0	2019
November 13	-14.0	2019
November 14	-12.8	1873
November 15	-18.3	1883
November 16	-14.4	1967
November 17	-15.0	2019
November 18	-16.7	1867
November 19	-18.3	1867
November 20	-16.1	1873
November 21	-16.7	1951
November 22	-15.0	1879, 2018
November 23	-17.8	1880
November 24	-18.3	1881
November 25	-13.9	1869
November 26	-19.4	1873, 1880
November 27	-20.0	1880
November 28	-20.0	1871
November 29	-18.3	1871
November 30	-21.7	1871
December 1	-30.0	1873
December 2	-21.7	1873
December 3	-23.3	1976
December 4	-23.9	1886
December 5	-28.3	1886
December 6	-23.9	1871
December 7	-20.6	1886
December 8	-22.0	2000
December 9	-25.0	1867
December 10	-23.9	1880
December 11	-25.0	1867
December 12	-27.8	1867
December 13	-27.8	1867
December 14	-27.2	1867
December 15	-23.3	1883
December 16	-26.1	1951
December 17	-31.7	1951
December 18	-29.4	1879
December 19	-30.0	1884
December 20	-30.0	1884
December 21	-34.4	1879
December 22	-33.3	1955
December 23	-32.2	1883
December 24	-28.9	1872
December 25	-33.9	1872
December 26	-32.8	1884
December 27	-29.5	1993
December 28	-33.3	1951
December 29	-28.9	1872
December 30	-30.6	1872
December 31	-32.2	1879

Years with the Most Daily Records

Which years set the greatest number of daily low temperature records in Cornwall history?

Rank	Year	Records Set
1	1956	28
2	1867	21
3	1885	20
4	1879	20
5	1873	19
6	1951	17
7	1868	17
8	1957	15
9	1883	15
10	1952	13

Daily Records by Decade

This table shows the number of daily low temperature records in Cornwall that were set in each decade since 1867.

Decade	Records Set
1860s	45
1870s	77
1880s	89
1950s	110
1960s	22
1970s	17
1980s	15
1990s	11
2000s	7
2010s	8
2020s	3

Weather Station Details

Years	Station	Coordinates
1950–2024	Cornwall	location
1867–1887	Cornwall	location