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Cornwall Weather in 1980

Historical record of Cornwall, Ontario weather for the year 1980 based on NOAA data.
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1980 Cornwall Weather Extremes
Highest temperature 31.0 °C June 25
Lowest temperature -30.0 °C December 25
Highest daily low 22.0 °C August 8
Lowest daily high -17.0 °C December 25
Most daily precipitation 3.7 cm August 19
Most daily snow 11.6 cm February 22
Total annual precipitation 89.9 cm -
Total annual snow 133.9 cm -
What was the hottest temperature in Cornwall in 1980?
The highest temperature recorded in Cornwall, Ontario in 1980 was 31.0 °C which happened 2 different times.
Highest Temperatures: All-Time By Year
Highest Temperatures in Cornwall in 1980
Rank Temperature Date
1 31.0 °C Jun 25
1 31.0 °C Jun 24
3 30.0 °C Aug 7
3 30.0 °C Aug 6
3 30.0 °C Aug 5
3 30.0 °C Jul 19
3 30.0 °C Jul 15
8 29.5 °C Aug 24
9 29.0 °C Aug 25
9 29.0 °C Aug 8
9 29.0 °C Jul 18
9 29.0 °C Jul 14
What was the coldest temperature in Cornwall in 1980?
The lowest temperature recorded in Cornwall, Ontario in 1980 was -30.0 °C which happened on Dec 25.
Lowest Temperatures: All-Time By Year
Lowest Temperatures in Cornwall in 1980
Rank Temperature Date
1 -30.0 °C December 25
2 -26.0 °C December 26
3 -24.5 °C March 2
4 -24.0 °C December 20
5 -23.5 °C December 31
6 -23.0 °C December 17
6 -23.0 °C January 24
8 -22.5 °C February 29
9 -22.0 °C December 15
10 -21.5 °C March 1
January 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
January 1
 -1.0 -4.5 0.00 0.0
January 2
 -3.5 -6.0 0.00 0.0
January 3
 -9.5 -14.0 0.00 0.0
January 4
 -8.0 -16.0 0.00 0.0
January 5
 -7.0 -14.0 0.00 0.0
January 6
 -6.0 -17.0 0.00 0.0
January 7
 3.5 -11.0 0.00 0.0
January 8
 -2.0 -7.0 0.00 0.0
January 9
 -6.5 -8.0 0.10 1.0
January 10
 -5.0 -14.0 0.00 0.0
January 11
 11.5 -7.0 0.78 0.0
January 12
 -5.0 -8.0 0.00 0.0
January 13
 -3.0 -11.0 0.00 0.0
January 14
 5.0 -7.0 0.33 0.0
January 15
 1.0 -4.0 0.00 0.0
January 16
 -4.5 -9.0 0.00 0.0
January 17
 0.0 -7.0 0.04 0.0
January 18
 5.0 -1.5 0.00 0.0
January 19
 3.0 0.0 0.00 0.0
January 20
 -3.0 -7.0 0.00 0.0
January 21
 -7.5 -11.0 0.00 0.0
January 22
 0.0 -13.0 0.80 8.0
January 23
 0.0 -6.0 0.15 1.5
January 24
 -15.0 -23.0 0.00 0.0
January 25
 -9.0 -19.5 0.00 0.0
January 26
 -9.0 -16.0 0.02 0.2
January 27
 -5.0 -12.0 0.06 0.6
January 28
 -5.5 -8.5 0.00 0.0
January 29
 -11.0 -16.0 0.00 0.0
January 30
 -13.5 -19.5 0.00 0.0
January 31
 -14.5 -21.0 0.00 0.0
February 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
February 1
 -12.0 -19.0 0.00 0.0
February 2
 -14.0 -18.0 0.00 0.0
February 3
 -13.0 -17.0 0.00 0.0
February 4
 -12.0 -17.0 0.00 0.0
February 5
 -10.0 -14.5 0.00 0.0
February 6
 -4.5 -15.0 0.00 0.0
February 7
 -4.0 -12.0 0.00 0.0
February 8
 -5.0 -13.0 0.00 0.0
February 9
 -3.5 -14.5 0.00 0.0
February 10
 -5.5 -17.0 0.00 0.0
February 11
 -2.0 -12.0 0.00 0.0
February 12
 -2.0 -8.0 0.00 0.0
February 13
 -2.5 -10.5 0.30 3.0
February 14
 -1.0 -5.0 0.00 0.0
February 15
 -6.0 -13.0 0.05 0.5
February 16
 -7.0 -10.0 0.02 0.2
February 17
 -6.0 -17.0 0.00 0.0
February 18
 -1.5 -11.0 0.00 0.0
February 19
 2.0 -7.0 0.00 0.0
February 20
 7.0 -2.0 0.00 0.0
February 21
 3.0 -2.0 0.00 0.0
February 22
 -5.0 -18.0 1.16 11.6
February 23
 -1.0 -7.0 0.06 0.6
February 24
 3.5 -4.5 0.00 0.0
February 25
 -3.0 -6.0 0.00 0.0
February 26
 -14.0 -20.0 0.00 0.0
February 27
 -7.0 -20.0 0.60 6.0
February 28
 n/a -17.0 0.00 0.0
February 29
 -15.0 -22.5 0.00 0.0
March 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
March 1
 -16.0 -21.5 0.00 0.0
March 2
 -12.0 -24.5 0.00 0.0
March 3
 -2.0 -18.0 0.00 0.0
March 4
 1.0 -6.0 0.00 0.0
March 5
 1.0 -4.5 0.20 2.0
March 6
 -4.0 -8.0 0.52 5.2
March 7
 0.0 -5.0 0.00 0.0
March 8
 -1.5 -4.5 0.80 8.0
March 9
 2.0 -7.5 0.00 0.0
March 10
 6.0 -5.0 0.32 0.0
March 11
 -2.0 -5.0 0.00 0.0
March 12
 -7.0 -15.0 0.00 0.0
March 13
 -3.0 -16.0 0.68 6.8
March 14
 -3.0 -6.0 0.60 6.0
March 15
 -5.0 -8.0 0.00 0.0
March 16
 -3.0 -17.0 0.00 0.0
March 17
 9.0 -7.0 0.80 0.0
March 18
 0.5 -1.0 0.20 2.0
March 19
 3.0 -6.0 0.00 0.0
March 20
 9.0 -2.0 0.00 0.0
March 21
 7.5 1.0 0.20 0.0
March 22
 7.5 1.0 0.00 0.0
March 23
 9.0 -1.0 0.00 0.0
March 24
 6.0 0.5 0.18 0.0
March 25
 4.0 1.0 0.65 0.0
March 26
 7.0 0.5 0.00 0.0
March 27
 8.5 1.5 0.00 0.0
March 28
 13.0 1.5 0.00 0.0
March 29
 8.0 3.0 0.00 0.0
March 30
 9.0 1.0 0.00 0.0
March 31
 9.5 -1.5 0.00 0.0
April 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
April 1
 12.0 -1.5 0.00 0.0
April 2
 12.0 0.5 0.00 0.0
April 3
 10.0 -2.0 0.08 0.0
April 4
 5.0 1.0 1.26 0.0
April 5
 12.5 0.5 0.22 0.0
April 6
 6.0 -2.0 0.00 0.0
April 7
 20.0 0.5 0.00 0.0
April 8
 20.0 9.5 1.40 0.0
April 9
 14.0 8.0 2.64 0.0
April 10
 15.0 9.0 0.18 0.0
April 11
 10.0 4.0 0.00 0.0
April 12
 11.0 5.0 1.46 0.0
April 13
 7.0 4.0 0.00 0.0
April 14
 9.5 1.0 0.82 0.0
April 15
 10.5 6.0 0.00 0.0
April 16
 1.0 -3.0 0.00 0.0
April 17
 7.0 -5.0 0.00 0.0
April 18
 12.0 2.0 0.00 0.0
April 19
 15.0 -1.0 0.00 0.0
April 20
 16.0 8.0 0.04 0.0
April 21
 12.0 3.0 0.00 0.0
April 22
 9.0 -1.0 0.00 0.0
April 23
 9.5 1.0 0.00 0.0
April 24
 10.0 3.0 0.08 0.0
April 25
 13.0 4.0 1.30 0.0
April 26
 14.0 6.0 0.00 0.0
April 27
 15.0 3.0 0.03 0.0
April 28
 15.0 9.0 0.92 0.0
April 29
 12.0 7.5 1.12 0.0
April 30
 17.0 9.0 0.00 0.0
May 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
May 1
 21.0 9.0 0.00 0.0
May 2
 22.0 9.5 0.00 0.0
May 3
 24.5 11.0 0.00 0.0
May 4
 15.0 6.0 0.00 0.0
May 5
 16.0 5.5 0.00 0.0
May 6
 12.0 6.0 0.22 0.0
May 7
 17.0 4.0 0.00 0.0
May 8
 12.0 4.0 0.00 0.0
May 9
 13.0 5.0 0.00 0.0
May 10
 16.0 6.0 0.00 0.0
May 11
 18.0 7.0 0.04 0.0
May 12
 18.5 7.0 0.00 0.0
May 13
 14.5 8.5 0.16 0.0
May 14
 15.5 7.0 0.00 0.0
May 15
 15.0 6.0 0.00 0.0
May 16
 22.0 5.0 0.00 0.0
May 17
 23.5 5.5 0.42 0.0
May 18
 16.5 11.0 2.48 0.0
May 19
 16.0 10.0 0.00 0.0
May 20
 21.0 5.0 0.00 0.0
May 21
 25.0 7.5 0.00 0.0
May 22
 27.0 14.0 0.00 0.0
May 23
 26.0 14.0 0.00 0.0
May 24
 24.0 14.0 0.00 0.0
May 25
 20.0 12.0 0.00 0.0
May 26
 18.5 8.0 0.00 0.0
May 27
 19.5 7.5 0.00 0.0
May 28
 18.0 5.0 0.00 0.0
May 29
 22.0 7.0 0.00 0.0
May 30
 23.0 10.0 0.88 0.0
May 31
 28.0 16.0 0.10 0.0
June 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
June 1
 16.0 11.0 0.00 0.0
June 2
 21.0 12.0 0.00 0.0
June 3
 20.5 16.0 0.33 0.0
June 4
 21.0 17.0 0.00 0.0
June 5
 21.5 8.0 0.00 0.0
June 6
 26.0 8.0 0.12 0.0
June 7
 25.0 15.0 0.00 0.0
June 8
 19.0 10.0 0.00 0.0
June 9
 12.0 2.0 0.10 0.0
June 10
 12.0 3.5 0.00 0.0
June 11
 13.5 3.0 0.00 0.0
June 12
 20.0 5.0 0.00 0.0
June 13
 25.5 10.0 0.00 0.0
June 14
 27.5 15.0 0.00 0.0
June 15
 16.5 12.0 0.55 0.0
June 16
 19.0 5.5 0.00 0.0
June 17
 21.0 8.0 0.00 0.0
June 18
 21.0 10.0 0.30 0.0
June 19
 21.5 10.5 0.00 0.0
June 20
 18.0 14.0 0.28 0.0
June 21
 24.0 13.0 0.00 0.0
June 22
 27.0 13.0 0.00 0.0
June 23
 28.0 15.0 0.34 0.0
June 24
 31.0 19.0 0.00 0.0
June 25
 31.0 19.5 0.06 0.0
June 26
 28.0 20.0 0.20 0.0
June 27
 22.0 17.0 0.00 0.0
June 28
 20.0 8.0 0.00 0.0
June 29
 26.0 14.0 2.42 0.0
June 30
 19.0 16.0 0.32 0.0
July 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
July 1
 26.0 14.0 0.12 0.0
July 2
 24.0 17.0 0.47 0.0
July 3
 26.0 13.0 0.00 0.0
July 4
 27.0 14.0 0.00 0.0
July 5
 25.0 16.0 0.10 0.0
July 6
 22.0 11.0 0.00 0.0
July 7
 26.0 12.0 0.00 0.0
July 8
 22.5 15.0 1.70 0.0
July 9
 22.0 14.0 0.00 0.0
July 10
 27.0 13.0 0.13 0.0
July 11
 28.0 17.0 0.80 0.0
July 12
 20.5 11.0 0.00 0.0
July 13
 26.5 13.5 0.00 0.0
July 14
 29.0 15.5 0.00 0.0
July 15
 30.0 20.0 0.30 0.0
July 16
 24.5 21.5 0.00 0.0
July 17
 25.0 19.0 0.18 0.0
July 18
 29.0 15.5 0.00 0.0
July 19
 30.0 18.0 0.00 0.0
July 20
 26.0 20.0 0.77 0.0
July 21
 25.0 18.0 2.02 0.0
July 22
 22.0 20.0 0.12 0.0
July 23
 24.0 18.0 0.00 0.0
July 24
 27.0 14.0 0.00 0.0
July 25
 28.0 15.0 0.18 0.0
July 26
 26.0 19.0 0.08 0.0
July 27
 26.5 20.0 0.00 0.0
July 28
 28.0 20.0 0.00 0.0
July 29
 26.0 20.0 2.87 0.0
July 30
 26.5 18.5 0.70 0.0
July 31
 28.0 16.5 0.00 0.0
August 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
August 1
 27.0 15.0 0.40 0.0
August 2
 28.0 18.0 0.51 0.0
August 3
 26.0 18.0 0.13 0.0
August 4
 27.0 17.0 0.00 0.0
August 5
 30.0 15.5 0.00 0.0
August 6
 30.0 22.0 0.13 0.0
August 7
 30.0 19.0 0.00 0.0
August 8
 29.0 22.0 0.00 0.0
August 9
 24.0 21.0 0.00 0.0
August 10
 24.5 12.5 0.00 0.0
August 11
 27.0 13.0 1.32 0.0
August 12
 23.0 18.0 0.24 0.0
August 13
 23.5 16.0 0.00 0.0
August 14
 25.0 15.0 1.06 0.0
August 15
 22.0 15.5 0.14 0.0
August 16
 24.0 13.0 0.00 0.0
August 17
 26.0 13.0 0.00 0.0
August 18
 26.5 14.5 0.00 0.0
August 19
 24.5 19.0 3.68 0.0
August 20
 23.0 17.0 0.00 0.0
August 21
 26.0 14.0 0.00 0.0
August 22
 26.0 13.0 0.00 0.0
August 23
 27.5 15.5 0.00 0.0
August 24
 29.5 17.5 0.00 0.0
August 25
 29.0 13.0 0.00 0.0
August 26
 24.0 18.0 0.13 0.0
August 27
 26.5 20.0 2.80 0.0
August 28
 21.5 13.5 0.00 0.0
August 29
 24.0 11.0 0.00 0.0
August 30
 28.0 16.0 1.60 0.0
August 31
 26.0 20.0 1.42 0.0
September 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
September 1
 28.0 20.0 0.16 0.0
September 2
 26.5 16.0 1.50 0.0
September 3
 23.0 15.0 0.00 0.0
September 4
 24.0 13.0 0.00 0.0
September 5
 26.5 19.0 0.00 0.0
September 6
 23.5 16.5 0.00 0.0
September 7
 21.5 12.5 0.00 0.0
September 8
 20.0 9.0 0.00 0.0
September 9
 24.0 9.0 1.80 0.0
September 10
 18.0 9.5 0.00 0.0
September 11
 22.0 12.5 0.04 0.0
September 12
 16.0 6.0 0.00 0.0
September 13
 16.0 9.0 0.83 0.0
September 14
 17.0 12.0 2.20 0.0
September 15
 19.0 9.5 0.00 0.0
September 16
 21.5 8.5 0.00 0.0
September 17
 22.5 16.5 0.44 0.0
September 18
 14.0 6.5 0.00 0.0
September 19
 19.5 6.5 0.06 0.0
September 20
 24.5 6.5 0.14 0.0
September 21
 21.0 9.0 0.50 0.0
September 22
 19.5 15.5 1.02 0.0
September 23
 18.0 14.0 0.00 0.0
September 24
 15.0 2.5 0.00 0.0
September 25
 15.0 1.0 1.55 0.0
September 26
 15.0 8.0 1.20 0.0
September 27
 10.0 2.0 0.16 0.0
September 28
 12.0 7.5 0.00 0.0
September 29
 14.5 -1.0 0.00 0.0
September 30
 21.5 11.5 0.00 0.0
October 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
October 1
 24.0 8.0 0.00 0.0
October 2
 19.0 12.0 0.40 0.0
October 3
 14.5 9.0 1.32 0.0
October 4
 9.5 7.0 1.27 0.0
October 5
 12.5 6.5 0.00 0.0
October 6
 11.0 7.0 0.10 0.0
October 7
 12.0 3.0 0.00 0.0
October 8
 20.0 6.5 0.04 0.0
October 9
 9.5 2.5 0.00 0.0
October 10
 12.0 -1.5 0.00 0.0
October 11
 17.0 3.0 0.75 0.0
October 12
 9.0 7.0 0.16 0.0
October 13
 5.5 2.0 0.00 0.0
October 14
 6.5 1.5 0.00 0.0
October 15
 9.0 -2.5 0.00 0.0
October 16
 10.5 -1.0 0.00 0.0
October 17
 21.0 1.0 0.52 0.0
October 18
 20.0 11.5 0.00 0.0
October 19
 11.5 8.0 0.22 0.0
October 20
 6.0 4.0 0.00 0.0
October 21
 7.0 1.0 0.44 0.0
October 22
 4.5 0.0 0.00 0.0
October 23
 5.0 -3.0 0.00 0.0
October 24
 10.0 -3.0 0.00 0.0
October 25
 8.0 -1.0 2.33 0.0
October 26
 6.0 2.0 0.86 0.0
October 27
 6.0 0.0 0.00 0.0
October 28
 4.0 0.0 0.00 0.0
October 29
 4.0 -1.0 0.00 0.0
October 30
 7.0 1.0 0.00 0.0
October 31
 9.5 3.0 0.05 0.0
November 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
November 1
 5.0 2.0 0.00 0.0
November 2
 2.0 -2.5 0.00 0.0
November 3
 12.0 -4.0 0.00 0.0
November 4
 15.0 4.0 0.05 0.0
November 5
 5.0 1.0 0.00 0.0
November 6
 6.0 -3.5 n/a 0.0
November 7
 9.0 1.0 1.40 0.4
November 8
 8.0 -4.0 0.02 0.2
November 9
 7.0 -5.0 0.38 0.0
November 10
 2.0 -2.0 0.00 0.0
November 11
 0.5 -2.0 0.00 0.0
November 12
 1.0 -1.5 0.00 0.0
November 13
 1.5 -3.5 n/a n/a
November 14
 3.5 1.0 0.00 0.0
November 15
 2.5 -4.5 0.00 0.0
November 16
 -4.0 -8.0 0.00 0.0
November 17
 -2.0 -9.5 0.02 0.2
November 18
 0.0 -5.0 0.20 2.0
November 19
 1.0 -8.0 0.00 0.0
November 20
 6.0 -3.5 0.00 0.0
November 21
 8.0 0.0 0.03 0.0
November 22
 6.0 1.0 0.00 0.0
November 23
 8.0 1.0 0.10 0.0
November 24
 5.0 3.0 1.60 0.0
November 25
 2.5 -1.5 0.54 3.2
November 26
 -1.0 -7.0 0.00 0.0
November 27
 -2.0 -9.0 0.00 0.0
November 28
 2.5 -5.0 1.28 0.0
November 29
 3.5 0.5 0.00 0.0
November 30
 5.5 -2.5 0.12 0.0
December 1980 Cornwall Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
December 1
 7.0 1.5 0.00 0.0
December 2
 5.0 0.0 1.66 6.0
December 3
 -7.0 -11.0 0.55 5.5
December 4
 -10.5 -15.5 0.00 0.0
December 5
 -2.0 -15.0 0.00 0.0
December 6
 -1.0 -14.5 0.00 0.0
December 7
 -1.0 -15.0 0.24 0.0
December 8
 9.0 -2.0 1.74 0.0
December 9
 -1.5 -4.4 0.50 5.0
December 10
 1.0 -5.0 0.60 6.0
December 11
 -12.0 -20.0 0.10 1.0
December 12
 -3.5 -19.0 1.02 10.2
December 13
 -2.0 -10.0 0.52 5.2
December 14
 -5.5 -16.0 0.16 1.6
December 15
 -16.0 -22.0 0.40 4.0
December 16
 -14.0 -18.0 0.00 0.0
December 17
 -3.0 -23.0 0.42 4.2
December 18
 -1.5 -20.5 0.30 3.0
December 19
 -8.0 -18.0 0.00 0.0
December 20
 -15.0 -24.0 0.00 0.0
December 21
 -14.0 -21.0 0.00 0.0
December 22
 -7.0 -21.0 0.20 2.0
December 23
 0.5 -12.0 0.20 2.0
December 24
 0.0 -16.0 0.70 7.0
December 25
 -17.0 -30.0 0.00 0.0
December 26
 -6.5 -26.0 0.00 0.0
December 27
 -8.5 -11.5 0.00 0.0
December 28
 -1.0 -19.0 0.00 0.0
December 29
 1.0 -7.5 0.10 1.0
December 30
 -12.0 -15.0 0.10 1.0
December 31
 -16.0 -23.5 0.00 0.0
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