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Cornwall Weather in 1987

Historical record of Cornwall, Ontario weather for the year 1987 based on NOAA data.
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Year:
1987 Cornwall Weather Extremes
Highest temperature 35.0 °C July 12
Lowest temperature -27.5 °C February 14
Highest daily low 24.0 °C July 24
Lowest daily high -20.5 °C February 14
Most daily precipitation 4.5 cm August 22
Most daily snow 18.0 cm January 22
Total annual precipitation 89.7 cm -
Total annual snow 157.2 cm -
What was the hottest temperature in Cornwall in 1987?
The highest temperature recorded in Cornwall, Ontario in 1987 was 35.0 °C which happened on July 12.
Highest Temperatures: All-Time By Year
Highest Temperatures in Cornwall in 1987
Rank Temperature Date
1 35.0 °C Jul 12
2 33.0 °C Aug 17
2 33.0 °C Aug 16
2 33.0 °C Jul 24
2 33.0 °C Jul 13
2 33.0 °C Jul 11
7 32.5 °C Jul 23
8 32.0 °C Jul 21
8 32.0 °C Jul 10
8 32.0 °C Jul 9
8 32.0 °C May 30
What was the coldest temperature in Cornwall in 1987?
The lowest temperature recorded in Cornwall, Ontario in 1987 was -27.5 °C which happened on Feb 14.
Lowest Temperatures: All-Time By Year
Lowest Temperatures in Cornwall in 1987
Rank Temperature Date
1 -27.5 °C February 14
2 -25.5 °C February 15
3 -24.0 °C February 16
3 -24.0 °C January 26
5 -23.0 °C January 24
6 -22.0 °C January 27
7 -21.5 °C February 13
8 -20.0 °C December 30
8 -20.0 °C February 17
8 -20.0 °C January 25
January 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
January 1
 -3.0 -8.0 0.00 0.0
January 2
 -0.5 -6.0 0.82 8.2
January 3
 -5.0 -7.0 0.00 0.0
January 4
 -5.0 -13.5 0.00 0.0
January 5
 -2.0 -9.0 0.00 0.0
January 6
 1.0 -4.0 0.00 0.0
January 7
 1.0 -3.0 0.22 2.2
January 8
 -1.5 -9.5 0.22 2.2
January 9
 1.0 -7.0 0.00 0.0
January 10
 -2.0 -4.0 1.10 11.0
January 11
 -1.0 -4.0 0.30 3.0
January 12
 -0.5 -4.0 0.02 0.2
January 13
 -1.5 -4.0 0.00 0.0
January 14
 4.0 -7.0 0.00 0.0
January 15
 1.0 1.0 0.28 2.8
January 16
 -3.5 -13.5 0.00 0.0
January 17
 -9.0 -18.5 0.00 0.0
January 18
 -8.5 -17.5 0.88 8.8
January 19
 -8.0 -14.0 0.00 0.0
January 20
 -6.0 -16.0 0.30 3.0
January 21
 -1.0 -7.0 0.00 0.0
January 22
 -3.0 -9.0 1.80 18.0
January 23
 -4.0 -9.0 0.30 3.0
January 24
 -11.0 -23.0 0.00 0.0
January 25
 -12.0 -20.0 0.00 0.0
January 26
 -14.0 -24.0 0.00 0.0
January 27
 -6.5 -22.0 0.00 0.0
January 28
 -3.0 -10.5 0.00 0.0
January 29
 -2.0 -6.0 0.00 0.0
January 30
 -2.0 -14.0 0.50 5.0
January 31
 -3.0 -5.0 0.18 1.8
February 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
February 1
 -4.5 -8.0 0.18 1.8
February 2
 -2.0 -7.0 0.20 2.0
February 3
 1.0 -3.0 0.00 0.0
February 4
 -4.5 -7.5 0.00 0.0
February 5
 -4.0 -19.0 0.26 2.6
February 6
 2.0 -10.0 0.40 4.0
February 7
 2.0 -5.0 0.00 0.0
February 8
 0.0 -4.0 1.20 12.0
February 9
 -13.5 -18.5 0.00 0.0
February 10
 -5.5 -18.5 0.04 0.4
February 11
 -9.0 -12.0 0.00 0.0
February 12
 -9.0 -19.0 0.20 2.0
February 13
 n/a -21.5 0.00 0.0
February 14
 -20.5 -27.5 0.00 0.0
February 15
 -19.0 -25.5 0.00 0.0
February 16
 -13.0 -24.0 0.00 0.0
February 17
 -5.0 -20.0 0.00 0.0
February 18
 -6.5 -14.0 0.00 0.0
February 19
 -6.0 -14.5 0.00 0.0
February 20
 -3.0 -15.0 0.00 0.0
February 21
 -1.0 -12.0 0.00 0.0
February 22
 2.0 -11.0 0.00 0.0
February 23
 -0.5 -8.5 0.00 0.0
February 24
 -4.0 -8.5 0.00 0.0
February 25
 -1.0 -10.0 0.00 0.0
February 26
 -1.0 -11.0 0.00 0.0
February 27
 4.0 -11.0 0.00 0.0
February 28
 3.0 -8.5 0.00 0.0
March 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
March 1
 -0.5 -5.5 0.98 9.8
March 2
 -3.0 -4.0 0.70 7.0
March 3
 -2.0 -7.0 0.00 0.0
March 4
 -0.5 -11.0 0.00 0.0
March 5
 1.0 -10.5 0.00 0.0
March 6
 5.0 -5.5 0.00 0.0
March 7
 12.0 2.0 0.00 0.0
March 8
 12.0 3.0 0.00 0.0
March 9
 -5.0 -10.0 0.00 0.0
March 10
 -9.5 -18.5 0.00 0.0
March 11
 -5.0 -17.0 0.00 0.0
March 12
 1.0 -13.0 0.00 0.0
March 13
 2.0 -6.5 0.00 0.0
March 14
 1.0 -9.0 0.00 0.0
March 15
 1.5 -8.5 0.00 0.0
March 16
 2.0 -7.5 0.00 0.0
March 17
 4.0 -4.0 0.00 0.0
March 18
 5.0 -3.0 0.00 0.0
March 19
 5.0 -6.0 0.00 0.0
March 20
 5.0 -1.0 0.00 0.0
March 21
 8.0 2.0 0.32 0.0
March 22
 10.0 3.0 0.00 0.0
March 23
 15.5 0.0 0.00 0.0
March 24
 18.0 0.5 0.00 0.0
March 25
 18.0 1.0 0.46 0.0
March 26
 n/a 6.0 0.22 0.0
March 27
 9.0 0.0 0.00 0.0
March 28
 13.0 4.0 0.00 0.0
March 29
 14.0 0.0 0.00 0.0
March 30
 17.0 5.0 0.10 0.0
March 31
 16.0 1.0 0.45 0.0
April 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
April 1
 1.0 -5.5 0.00 0.0
April 2
 2.0 -5.0 0.32 0.0
April 3
 6.0 0.0 0.13 0.0
April 4
 9.0 2.0 0.21 0.0
April 5
 10.0 6.0 0.34 0.0
April 6
 11.0 7.0 0.14 0.0
April 7
 11.5 7.0 0.44 0.0
April 8
 10.0 4.0 0.00 0.0
April 9
 16.0 4.0 0.00 0.0
April 10
 19.5 6.0 0.00 0.0
April 11
 19.0 4.0 0.00 0.0
April 12
 16.0 8.5 0.00 0.0
April 13
 14.0 3.0 0.00 0.0
April 14
 15.0 0.0 0.00 0.0
April 15
 17.5 8.5 0.00 0.0
April 16
 22.5 8.0 0.00 0.0
April 17
 19.0 8.0 0.00 0.0
April 18
 25.0 12.0 0.00 0.0
April 19
 27.0 11.0 0.00 0.0
April 20
 28.0 12.0 0.00 0.0
April 21
 27.5 15.0 0.00 0.0
April 22
 16.0 3.0 0.00 0.0
April 23
 19.0 8.0 1.30 0.0
April 24
 11.5 4.0 0.00 0.0
April 25
 16.0 0.5 0.00 0.0
April 26
 13.0 2.0 0.00 0.0
April 27
 20.0 2.0 n/a 0.0
April 28
 7.0 1.0 0.61 0.0
April 29
 7.5 1.0 0.94 0.0
April 30
 8.0 2.5 0.10 0.0
May 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
May 1
 12.0 3.0 0.00 0.0
May 2
 12.0 2.0 0.00 0.0
May 3
 12.5 1.0 0.00 0.0
May 4
 14.0 1.0 0.00 0.0
May 5
 16.0 4.0 0.06 0.0
May 6
 12.0 8.0 0.09 0.0
May 7
 16.0 8.0 0.00 0.0
May 8
 18.0 2.5 0.00 0.0
May 9
 23.0 7.5 0.14 0.0
May 10
 19.0 14.5 0.00 0.0
May 11
 20.0 7.0 1.01 0.0
May 12
 14.0 9.0 0.00 0.0
May 13
 21.0 2.0 0.00 0.0
May 14
 26.0 12.0 1.64 0.0
May 15
 11.0 8.0 0.19 0.0
May 16
 16.0 1.5 0.10 0.0
May 17
 14.0 11.0 0.45 0.0
May 18
 14.0 9.5 0.00 0.0
May 19
 18.0 4.0 0.00 0.0
May 20
 19.0 8.0 0.00 0.0
May 21
 21.0 11.5 0.00 0.0
May 22
 23.5 17.0 0.30 0.0
May 23
 11.5 9.5 0.24 0.0
May 24
 12.5 8.0 0.00 0.0
May 25
 18.0 8.5 0.00 0.0
May 26
 23.0 6.0 0.13 0.0
May 27
 23.0 n/a 1.10 0.0
May 28
 28.5 17.0 0.42 0.0
May 29
 30.0 17.0 0.00 0.0
May 30
 32.0 20.0 0.00 0.0
May 31
 25.0 20.0 0.20 0.0
June 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
June 1
 26.5 18.0 0.14 0.0
June 2
 27.5 18.5 0.00 0.0
June 3
 26.0 20.5 0.23 0.0
June 4
 24.0 16.0 0.63 0.0
June 5
 20.0 11.0 0.26 0.0
June 6
 19.5 6.5 0.00 0.0
June 7
 17.5 8.0 0.16 0.0
June 8
 20.0 14.5 2.38 0.0
June 9
 16.0 14.0 2.09 0.0
June 10
 21.0 8.0 0.00 0.0
June 11
 22.0 11.0 0.64 0.0
June 12
 22.0 11.0 0.13 0.0
June 13
 23.0 14.0 0.00 0.0
June 14
 27.0 13.0 0.00 0.0
June 15
 27.5 18.0 0.00 0.0
June 16
 23.0 10.5 0.20 0.0
June 17
 24.0 10.0 0.00 0.0
June 18
 n/a 12.0 0.00 0.0
June 19
 28.0 16.0 0.00 0.0
June 20
 24.0 12.5 0.00 0.0
June 21
 28.0 10.5 0.00 0.0
June 22
 25.0 12.0 0.24 0.0
June 23
 28.0 18.0 0.00 0.0
June 24
 30.5 17.0 0.00 0.0
June 25
 26.0 18.0 0.40 0.0
June 26
 25.0 19.0 0.98 0.0
June 27
 25.0 17.0 0.55 0.0
June 28
 22.0 15.0 0.87 0.0
June 29
 25.5 14.0 1.26 0.0
June 30
 26.0 19.0 0.00 0.0
July 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
July 1
 24.0 15.0 0.00 0.0
July 2
 24.0 13.0 0.53 0.0
July 3
 25.0 16.0 0.50 0.0
July 4
 23.0 17.0 0.42 0.0
July 5
 29.0 15.0 0.00 0.0
July 6
 31.0 15.5 0.00 0.0
July 7
 n/a 21.5 0.00 0.0
July 8
 29.0 20.0 0.00 0.0
July 9
 32.0 22.5 0.00 0.0
July 10
 32.0 21.0 0.00 0.0
July 11
 33.0 23.0 0.20 0.0
July 12
 35.0 22.0 0.00 0.0
July 13
 33.0 23.0 0.00 0.0
July 14
 30.5 18.5 0.92 0.0
July 15
 21.0 13.0 0.00 0.0
July 16
 24.0 12.0 0.00 0.0
July 17
 n/a 13.0 0.00 0.0
July 18
 29.0 17.0 0.53 0.0
July 19
 25.0 17.0 0.42 0.0
July 20
 27.0 19.0 1.30 0.0
July 21
 32.0 17.0 0.00 0.0
July 22
 31.0 16.0 0.00 0.0
July 23
 32.5 20.0 0.00 0.0
July 24
 33.0 24.0 3.80 0.0
July 25
 29.0 20.0 4.18 0.0
July 26
 26.0 18.0 0.00 0.0
July 27
 25.0 15.0 0.00 0.0
July 28
 19.0 10.0 0.00 0.0
July 29
 25.0 9.5 0.00 0.0
July 30
 25.0 14.5 0.00 0.0
July 31
 26.0 11.0 0.00 0.0
August 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
August 1
 24.5 12.0 0.00 0.0
August 2
 26.5 12.5 1.50 0.0
August 3
 27.0 20.0 0.00 0.0
August 4
 27.0 17.5 0.42 0.0
August 5
 21.0 13.0 0.00 0.0
August 6
 25.0 10.5 0.00 0.0
August 7
 27.0 15.0 0.00 0.0
August 8
 25.0 17.0 0.00 0.0
August 9
 n/a 12.0 0.10 0.0
August 10
 25.0 15.0 0.00 0.0
August 11
 25.0 11.0 0.00 0.0
August 12
 25.0 12.0 0.00 0.0
August 13
 29.0 12.0 0.00 0.0
August 14
 25.0 19.0 0.00 0.0
August 15
 28.0 21.0 0.00 0.0
August 16
 33.0 20.5 0.00 0.0
August 17
 33.0 21.0 0.91 0.0
August 18
 27.0 20.0 0.00 0.0
August 19
 27.0 17.0 1.10 0.0
August 20
 23.0 15.0 0.00 0.0
August 21
 26.0 14.0 0.00 0.0
August 22
 26.0 19.0 4.53 0.0
August 23
 20.0 11.0 0.00 0.0
August 24
 19.5 8.0 0.00 0.0
August 25
 21.5 11.5 0.00 0.0
August 26
 18.0 7.0 0.00 0.0
August 27
 21.0 9.0 0.00 0.0
August 28
 21.5 11.5 0.22 0.0
August 29
 20.0 13.5 1.20 0.0
August 30
 24.5 12.0 0.00 0.0
August 31
 26.0 15.0 0.64 0.0
September 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
September 1
 16.0 11.0 0.00 0.0
September 2
 18.0 9.0 0.00 0.0
September 3
 17.5 8.0 0.00 0.0
September 4
 22.0 4.5 0.00 0.0
September 5
 26.0 10.0 0.00 0.0
September 6
 26.0 15.0 0.00 0.0
September 7
 26.0 18.5 0.00 0.0
September 8
 22.5 17.5 1.72 0.0
September 9
 22.0 18.0 0.10 0.0
September 10
 21.0 16.0 0.00 0.0
September 11
 23.0 14.0 1.20 0.0
September 12
 20.0 18.0 1.70 0.0
September 13
 19.0 17.0 0.67 0.0
September 14
 21.0 15.0 0.00 0.0
September 15
 21.0 11.0 0.00 0.0
September 16
 23.0 13.0 0.00 0.0
September 17
 18.0 9.0 0.00 0.0
September 18
 16.0 8.0 0.00 0.0
September 19
 18.0 12.0 0.28 0.0
September 20
 16.0 12.0 0.68 0.0
September 21
 13.0 10.5 0.12 0.0
September 22
 16.5 10.5 0.00 0.0
September 23
 20.0 11.5 0.00 0.0
September 24
 16.0 8.0 0.00 0.0
September 25
 12.0 3.5 0.00 0.0
September 26
 17.0 6.5 0.08 0.0
September 27
 16.5 4.0 0.00 0.0
September 28
 24.0 10.0 0.41 0.0
September 29
 26.0 16.0 1.47 0.0
September 30
 19.0 14.0 0.76 0.0
October 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
October 1
 13.0 8.0 1.00 0.0
October 2
 19.0 6.0 0.37 0.0
October 3
 11.0 5.0 0.00 0.0
October 4
 11.0 2.0 0.00 0.0
October 5
 20.0 5.5 0.00 0.0
October 6
 21.5 10.0 0.36 0.0
October 7
 19.0 11.0 0.73 0.0
October 8
 n/a 6.0 0.17 0.0
October 9
 13.0 0.0 0.06 0.0
October 10
 10.0 6.0 0.00 0.0
October 11
 n/a 1.0 0.00 0.0
October 12
 11.0 -1.0 0.00 0.0
October 13
 15.0 2.0 0.00 0.0
October 14
 15.5 2.0 0.00 0.0
October 15
 17.5 7.5 0.00 0.0
October 16
 17.0 9.0 0.00 0.0
October 17
 22.0 6.0 0.15 0.0
October 18
 14.0 11.0 0.00 0.0
October 19
 15.0 8.0 0.00 0.0
October 20
 16.5 8.0 0.64 0.0
October 21
 6.0 4.0 0.00 0.0
October 22
 7.0 0.0 0.30 0.0
October 23
 8.0 1.0 0.58 0.0
October 24
 10.0 3.5 1.18 0.0
October 25
 5.0 2.0 0.12 0.0
October 26
 9.0 -3.0 0.00 0.0
October 27
 17.0 -1.0 1.38 0.0
October 28
 8.0 6.0 0.20 0.0
October 29
 7.5 0.0 0.00 0.0
October 30
 9.0 1.5 0.20 0.0
October 31
 9.0 3.5 0.00 0.0
November 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
November 1
 11.0 0.0 0.00 0.0
November 2
 7.0 0.0 0.24 0.0
November 3
 15.0 3.0 0.08 0.0
November 4
 20.0 12.5 0.54 0.0
November 5
 9.0 5.5 0.28 0.0
November 6
 -2.0 -6.0 0.28 2.8
November 7
 4.0 -5.0 0.10 0.0
November 8
 8.0 1.0 2.10 0.0
November 9
 4.0 1.0 0.12 0.0
November 10
 -1.0 -5.0 0.00 0.0
November 11
 -1.0 -6.0 0.00 0.0
November 12
 5.0 -6.5 0.00 0.0
November 13
 10.0 1.0 0.00 0.0
November 14
 7.5 3.5 0.00 0.0
November 15
 5.0 -2.0 0.00 0.0
November 16
 6.5 -2.5 0.00 0.0
November 17
 19.0 -1.0 0.84 0.0
November 18
 13.0 9.0 0.00 0.0
November 19
 8.0 -1.0 0.20 0.0
November 20
 3.0 -4.0 0.00 0.0
November 21
 -8.5 -14.0 0.00 0.0
November 22
 -1.5 -10.0 0.00 0.0
November 23
 n/a -4.5 0.00 0.0
November 24
 11.5 3.0 0.22 0.0
November 25
 2.0 -1.0 1.46 14.6
November 26
 -1.0 -3.0 0.04 0.4
November 27
 -2.0 -6.0 0.00 0.0
November 28
 -2.0 -6.5 0.00 0.0
November 29
 3.0 -6.0 3.53 0.0
November 30
 5.5 0.0 0.18 0.0
December 1987 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
December 1
 3.0 0.0 0.00 0.0
December 2
 -1.0 -4.0 0.00 0.0
December 3
 1.0 -5.0 0.00 0.0
December 4
 0.0 -1.5 0.00 0.0
December 5
 -1.5 -7.0 0.02 0.2
December 6
 -1.5 -3.5 0.00 0.0
December 7
 -4.0 -7.0 0.00 0.0
December 8
 1.0 -9.5 0.00 0.0
December 9
 9.0 -2.0 0.61 0.0
December 10
 8.0 2.0 0.00 0.0
December 11
 7.0 3.0 0.00 0.0
December 12
 2.0 0.0 0.38 0.0
December 13
 3.0 1.0 0.19 0.0
December 14
 4.0 2.0 0.00 0.0
December 15
 3.0 -2.0 1.46 14.6
December 16
 1.0 -4.0 0.30 3.0
December 17
 -5.0 -8.0 0.00 0.0
December 18
 -4.0 -9.5 0.20 2.0
December 19
 1.0 -5.5 0.34 3.4
December 20
 5.0 -5.0 0.81 4.2
December 21
 3.0 1.0 0.00 0.0
December 22
 4.0 -1.5 0.00 0.0
December 23
 3.0 -0.5 0.12 1.2
December 24
 3.0 -3.5 0.54 0.0
December 25
 6.0 0.5 0.12 0.0
December 26
 -2.0 -4.0 0.00 0.0
December 27
 0.0 -7.0 0.00 0.0
December 28
 -9.0 -13.5 0.00 0.0
December 29
 -10.0 -13.0 0.00 0.0
December 30
 -13.0 -20.0 0.00 0.0
December 31
 2.5 -16.0 0.00 0.0
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