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Thunder Bay Weather in 1966

Historical record of Thunder Bay, Ontario weather for the year 1966 based on NOAA data.
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1966 Thunder Bay Weather Extremes
Highest temperature 34.4 °C July 12
Lowest temperature -35.0 °C February 18
Highest daily low 17.2 °C July 12
Lowest daily high -24.4 °C January 27
Most daily precipitation 3.0 cm August 22
Most daily snow 25.7 cm March 4
Total annual precipitation 58.1 cm -
Total annual snow 246.3 cm -
What was the hottest temperature in Thunder Bay in 1966?
The highest temperature recorded in Thunder Bay, Ontario in 1966 was 34.4 °C which happened on July 12.
Highest Temperatures: All-Time By Year
Highest Temperatures in Thunder Bay in 1966
Rank Temperature Date
1 34.4 °C Jul 12
2 32.8 °C Jul 2
3 32.2 °C Jul 18
3 32.2 °C Jul 1
3 32.2 °C Jun 30
6 31.7 °C Aug 26
7 31.1 °C Jul 30
7 31.1 °C Jul 10
7 31.1 °C Jun 23
10 30.6 °C Aug 3
10 30.6 °C Jul 8
What was the coldest temperature in Thunder Bay in 1966?
The lowest temperature recorded in Thunder Bay, Ontario in 1966 was -35.0 °C which happened 2 different times.
Lowest Temperatures: All-Time By Year
Lowest Temperatures in Thunder Bay in 1966
Rank Temperature Date
1 -35.0 °C February 18
1 -35.0 °C January 25
3 -33.9 °C January 28
3 -33.9 °C January 27
5 -32.8 °C February 19
6 -32.2 °C February 17
6 -32.2 °C January 24
6 -32.2 °C January 11
9 -31.7 °C January 15
10 -30.6 °C January 14
January 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
January 1
 -3.3 -22.2 0.03 1.5
January 2
 -1.1 -7.8 1.45 17.3
January 3
 -7.2 -24.4 0.00 0.0
January 4
 -4.4 -13.3 0.00 0.0
January 5
 -8.9 -13.9 0.08 1.3
January 6
 -10.6 -25.0 0.10 1.8
January 7
 -18.9 -27.8 0.00 0.0
January 8
 -11.7 -29.4 0.15 2.3
January 9
 -5.6 -12.8 0.30 5.1
January 10
 -12.2 -27.2 0.08 1.5
January 11
 -20.0 -32.2 0.03 0.3
January 12
 -4.4 -23.3 0.33 6.9
January 13
 -8.9 -25.6 0.00 0.0
January 14
 -20.0 -30.6 0.00 0.0
January 15
 -15.6 -31.7 0.00 0.0
January 16
 -12.8 -25.0 0.00 0.0
January 17
 -11.7 -17.8 0.30 6.1
January 18
 -6.1 -20.6 0.03 2.0
January 19
 -7.2 -21.7 0.00 0.0
January 20
 -7.8 -23.3 0.00 0.3
January 21
 -10.0 -15.0 0.15 3.8
January 22
 -12.8 -21.7 0.28 4.3
January 23
 -19.4 -28.3 0.00 0.0
January 24
 -18.3 -32.2 0.00 0.0
January 25
 -15.0 -35.0 0.18 3.0
January 26
 -8.3 -24.4 0.41 8.4
January 27
 -24.4 -33.9 0.00 0.0
January 28
 -23.9 -33.9 0.00 0.0
January 29
 -17.8 -28.9 0.03 0.3
January 30
 -13.9 -21.7 0.05 0.8
January 31
 -8.3 -18.3 0.00 0.0
February 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
February 1
 -5.0 -12.2 0.00 0.0
February 2
 -3.9 -21.7 0.00 0.0
February 3
 -5.6 -24.4 0.03 0.5
February 4
 -13.9 -26.7 0.00 0.0
February 5
 -10.0 -25.6 0.00 0.0
February 6
 -3.3 -18.3 0.00 0.0
February 7
 0.0 -12.8 0.00 0.0
February 8
 1.1 -6.7 0.51 4.1
February 9
 6.7 0.6 0.79 0.0
February 10
 5.0 -5.0 0.00 0.0
February 11
 -2.2 -13.9 0.00 0.0
February 12
 1.1 -17.2 0.00 0.0
February 13
 -5.0 -22.2 0.03 0.3
February 14
 -10.0 -26.7 0.00 0.0
February 15
 -11.7 -20.0 0.03 0.5
February 16
 -14.4 -25.6 0.05 1.0
February 17
 -22.8 -32.2 0.00 0.0
February 18
 -22.2 -35.0 0.00 0.0
February 19
 -17.8 -32.8 0.00 0.0
February 20
 -11.7 -26.7 0.00 0.0
February 21
 -5.6 -20.0 0.00 0.3
February 22
 -2.8 -17.2 0.00 0.0
February 23
 -1.1 -20.6 0.00 0.0
February 24
 -2.2 -7.8 0.00 0.0
February 25
 -3.3 -16.1 0.00 0.0
February 26
 0.6 -20.0 0.00 0.0
February 27
 2.8 -16.7 0.00 0.0
February 28
 2.2 -4.4 0.05 0.8
March 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
March 1
 3.3 -7.2 0.00 0.0
March 2
 2.8 -8.9 0.00 0.0
March 3
 0.0 -2.2 0.23 2.3
March 4
 -0.6 -7.2 2.08 25.7
March 5
 -6.7 -13.3 0.08 1.5
March 6
 -7.2 -15.0 0.00 0.0
March 7
 -2.8 -18.9 0.00 0.0
March 8
 2.2 -18.3 0.05 0.8
March 9
 3.9 -15.0 0.00 0.0
March 10
 -0.6 -8.9 0.23 3.0
March 11
 -0.6 -2.8 0.28 1.5
March 12
 6.7 -2.8 0.08 0.8
March 13
 9.4 -10.0 0.00 0.0
March 14
 1.7 -3.9 0.00 0.0
March 15
 1.1 -3.3 0.20 2.3
March 16
 3.3 -0.6 0.36 1.0
March 17
 5.0 1.1 0.03 0.0
March 18
 4.4 0.6 0.94 0.0
March 19
 1.1 -5.6 0.00 0.0
March 20
 0.0 -11.1 0.00 0.0
March 21
 8.3 -11.7 0.00 0.0
March 22
 6.7 -6.1 0.00 0.0
March 23
 -2.8 -15.0 0.10 1.8
March 24
 -5.0 -15.6 0.00 0.0
March 25
 -3.9 -16.7 0.00 0.0
March 26
 -2.2 -14.4 0.00 0.0
March 27
 -1.1 -20.0 0.00 0.0
March 28
 5.0 -17.8 0.00 0.0
March 29
 7.8 -2.8 0.00 0.0
March 30
 3.3 -7.8 0.00 0.0
March 31
 1.1 -7.8 1.02 10.4
April 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
April 1
 3.3 -2.2 0.38 3.6
April 2
 1.1 -6.7 0.00 0.0
April 3
 3.3 -8.3 0.00 0.0
April 4
 2.2 -2.8 0.00 0.0
April 5
 2.2 -2.2 0.03 0.3
April 6
 2.8 -3.3 0.03 0.3
April 7
 5.0 -3.3 0.00 0.0
April 8
 5.6 -3.9 0.00 0.0
April 9
 6.1 -3.9 0.00 0.0
April 10
 5.6 -3.9 0.00 0.0
April 11
 5.6 -6.1 0.00 0.0
April 12
 6.1 -6.1 0.00 0.0
April 13
 6.7 -5.6 0.00 0.0
April 14
 9.4 -6.1 0.00 0.0
April 15
 12.8 -3.9 0.00 0.0
April 16
 12.8 -4.4 0.00 0.0
April 17
 7.2 -3.3 0.13 0.0
April 18
 6.1 0.6 0.13 0.0
April 19
 4.4 1.7 0.66 0.0
April 20
 5.0 0.6 0.08 0.0
April 21
 7.8 -2.2 0.10 1.0
April 22
 15.0 -1.1 0.10 0.3
April 23
 10.6 -1.1 0.13 0.0
April 24
 13.9 1.1 0.00 0.0
April 25
 8.3 -2.2 0.00 0.0
April 26
 0.6 -5.0 0.00 0.0
April 27
 3.9 -1.1 0.08 0.8
April 28
 3.9 0.0 1.14 11.4
April 29
 8.3 -1.1 0.18 0.5
April 30
 5.6 -3.9 0.03 0.3
May 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
May 1
 6.7 -5.6 0.00 0.0
May 2
 4.4 -3.3 0.53 5.3
May 3
 9.4 -2.2 0.00 0.0
May 4
 14.4 -5.0 0.00 0.0
May 5
 19.4 0.6 0.00 0.0
May 6
 6.7 -2.2 0.00 0.0
May 7
 10.0 -6.1 0.00 0.0
May 8
 1.7 -5.6 0.00 0.0
May 9
 7.2 -7.2 0.00 0.0
May 10
 7.8 -6.7 0.00 0.0
May 11
 8.3 -2.8 0.00 0.0
May 12
 11.7 -5.0 0.00 0.0
May 13
 12.2 -2.8 0.00 0.0
May 14
 12.2 0.0 0.20 0.0
May 15
 8.3 -1.1 1.24 0.0
May 16
 13.9 3.3 0.03 0.0
May 17
 10.0 -0.6 1.45 0.0
May 18
 18.3 3.9 0.00 0.0
May 19
 16.7 1.1 0.03 0.0
May 20
 16.1 3.9 0.00 0.0
May 21
 20.6 1.7 0.00 0.0
May 22
 26.1 5.6 0.00 0.0
May 23
 22.8 9.4 0.69 0.0
May 24
 21.1 7.2 0.05 0.0
May 25
 25.6 5.0 0.00 0.0
May 26
 23.3 6.7 0.00 0.0
May 27
 16.1 6.1 0.00 0.0
May 28
 13.9 2.2 0.08 0.0
May 29
 16.1 1.1 0.00 0.0
May 30
 18.9 4.4 0.00 0.0
May 31
 21.7 1.1 0.00 0.0
June 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
June 1
 22.8 1.7 0.00 0.0
June 2
 12.8 2.8 0.81 0.0
June 3
 25.0 7.8 0.15 0.0
June 4
 15.0 7.2 0.00 0.0
June 5
 15.0 7.8 0.41 0.0
June 6
 19.4 7.8 1.45 0.0
June 7
 16.7 6.1 0.05 0.0
June 8
 15.6 1.7 0.00 0.0
June 9
 16.1 0.0 0.00 0.0
June 10
 19.4 0.6 0.00 0.0
June 11
 15.0 4.4 0.15 0.0
June 12
 25.6 8.9 0.00 0.0
June 13
 21.1 6.1 0.41 0.0
June 14
 19.4 11.7 0.13 0.0
June 15
 21.7 7.8 0.00 0.0
June 16
 24.4 7.2 0.00 0.0
June 17
 25.0 6.1 0.00 0.0
June 18
 21.1 8.9 0.13 0.0
June 19
 24.4 6.7 0.00 0.0
June 20
 23.3 10.6 0.00 0.0
June 21
 17.8 7.8 0.00 0.0
June 22
 28.9 10.0 0.00 0.0
June 23
 31.1 10.6 0.00 0.0
June 24
 26.7 14.4 0.10 0.0
June 25
 26.1 11.7 0.00 0.0
June 26
 23.3 10.6 0.00 0.0
June 27
 24.4 6.1 0.00 0.0
June 28
 29.4 8.3 0.00 0.0
June 29
 28.9 15.0 0.00 0.0
June 30
 32.2 10.6 0.00 0.0
July 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
July 1
 32.2 15.0 0.00 0.0
July 2
 32.8 15.6 0.00 0.0
July 3
 22.8 14.4 1.65 0.0
July 4
 20.0 12.8 0.00 0.0
July 5
 27.2 11.1 0.00 0.0
July 6
 25.6 11.1 0.00 0.0
July 7
 25.0 8.3 0.00 0.0
July 8
 30.6 9.4 0.00 0.0
July 9
 27.2 13.3 2.03 0.0
July 10
 31.1 15.6 0.00 0.0
July 11
 28.9 15.0 0.00 0.0
July 12
 34.4 17.2 0.00 0.0
July 13
 23.9 14.4 0.00 0.0
July 14
 22.2 11.7 0.00 0.0
July 15
 26.7 8.9 0.00 0.0
July 16
 27.8 11.1 0.00 0.0
July 17
 28.9 16.7 0.00 0.0
July 18
 32.2 15.0 0.00 0.0
July 19
 22.8 11.7 0.00 0.0
July 20
 25.6 7.2 0.00 0.0
July 21
 27.8 7.2 0.00 0.0
July 22
 28.9 15.6 0.00 0.0
July 23
 28.3 11.1 0.00 0.0
July 24
 26.7 11.1 0.00 0.0
July 25
 25.6 12.8 0.58 0.0
July 26
 17.2 9.4 0.00 0.0
July 27
 26.1 11.1 0.15 0.0
July 28
 24.4 12.2 0.00 0.0
July 29
 26.1 8.3 0.00 0.0
July 30
 31.1 10.0 0.00 0.0
July 31
 28.3 15.6 0.00 0.0
August 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
August 1
 19.4 11.7 0.43 0.0
August 2
 25.0 8.3 0.00 0.0
August 3
 30.6 7.2 1.19 0.0
August 4
 26.7 15.0 0.46 0.0
August 5
 22.8 14.4 0.00 0.0
August 6
 18.3 15.0 1.02 0.0
August 7
 15.6 12.2 1.73 0.0
August 8
 14.4 12.2 1.60 0.0
August 9
 15.6 11.7 0.69 0.0
August 10
 20.0 11.1 0.03 0.0
August 11
 20.0 8.9 0.00 0.0
August 12
 23.3 5.0 0.00 0.0
August 13
 18.3 6.7 0.03 0.0
August 14
 21.7 12.2 0.05 0.0
August 15
 22.8 9.4 0.00 0.0
August 16
 24.4 9.4 0.00 0.0
August 17
 25.6 11.7 1.42 0.0
August 18
 21.1 7.2 0.00 0.0
August 19
 20.0 5.0 0.00 0.0
August 20
 20.6 6.1 0.00 0.0
August 21
 19.4 8.9 0.05 0.0
August 22
 13.3 11.1 2.95 0.0
August 23
 19.4 11.1 0.08 0.0
August 24
 21.7 11.1 0.05 0.0
August 25
 24.4 11.1 0.00 0.0
August 26
 31.7 9.4 0.00 0.0
August 27
 19.4 12.2 0.00 0.0
August 28
 25.6 12.2 0.00 0.0
August 29
 25.6 12.2 0.00 0.0
August 30
 18.3 8.9 0.00 0.0
August 31
 18.9 6.7 0.00 0.0
September 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
September 1
 27.2 13.3 0.00 0.0
September 2
 25.6 8.9 0.00 0.0
September 3
 20.6 8.3 0.05 0.0
September 4
 19.4 10.0 0.43 0.0
September 5
 18.3 10.6 0.10 0.0
September 6
 19.4 7.8 0.00 0.0
September 7
 22.8 4.4 0.00 0.0
September 8
 24.4 4.4 0.00 0.0
September 9
 27.2 10.0 0.00 0.0
September 10
 19.4 10.6 0.00 0.0
September 11
 13.9 12.2 0.00 0.0
September 12
 19.4 12.8 0.00 0.0
September 13
 24.4 7.8 2.03 0.0
September 14
 16.7 2.8 0.00 0.0
September 15
 20.0 -0.6 0.00 0.0
September 16
 22.8 6.7 0.00 0.0
September 17
 23.9 4.4 0.00 0.0
September 18
 24.4 6.1 0.00 0.0
September 19
 17.8 5.6 0.00 0.0
September 20
 18.3 2.2 0.00 0.0
September 21
 18.3 6.1 0.23 0.0
September 22
 17.2 6.1 0.08 0.0
September 23
 15.6 2.2 0.00 0.0
September 24
 15.6 -1.7 0.00 0.0
September 25
 12.8 -0.6 0.00 0.0
September 26
 16.7 1.7 0.00 0.0
September 27
 13.3 1.7 0.00 0.0
September 28
 12.2 -2.2 0.81 0.0
September 29
 10.6 1.1 0.20 0.0
September 30
 10.6 0.0 0.00 0.0
October 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
October 1
 10.0 -1.1 0.00 0.0
October 2
 11.7 1.7 1.27 0.0
October 3
 11.1 8.9 2.72 0.0
October 4
 8.9 2.8 0.03 0.0
October 5
 12.2 -0.6 0.00 0.0
October 6
 20.6 -1.1 0.00 0.0
October 7
 17.8 3.3 0.00 0.0
October 8
 10.0 2.8 0.08 0.0
October 9
 12.2 1.1 0.58 0.0
October 10
 9.4 -1.1 0.03 0.0
October 11
 9.4 0.0 0.00 0.0
October 12
 10.0 -4.4 0.00 0.0
October 13
 8.9 -0.6 0.00 0.0
October 14
 10.0 2.8 0.97 0.0
October 15
 3.9 0.0 1.14 10.4
October 16
 0.6 -5.0 0.00 0.0
October 17
 3.9 -2.2 0.00 0.0
October 18
 11.1 -2.2 0.03 0.0
October 19
 10.0 -3.3 0.00 0.0
October 20
 12.2 -5.6 0.00 0.0
October 21
 12.8 0.6 0.00 0.0
October 22
 11.7 3.3 0.13 0.0
October 23
 4.4 1.1 0.00 0.0
October 24
 6.1 1.1 0.00 0.0
October 25
 8.9 -2.8 0.00 0.0
October 26
 8.3 -2.8 0.00 0.0
October 27
 11.7 -1.1 0.28 0.0
October 28
 3.3 -1.7 0.69 4.8
October 29
 0.6 -8.3 0.00 0.0
October 30
 6.1 -8.3 0.00 0.0
October 31
 6.1 -3.9 0.03 0.0
November 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
November 1
 -3.3 -12.2 0.00 0.0
November 2
 -3.9 -15.6 0.00 0.0
November 3
 -5.6 -14.4 0.00 0.0
November 4
 -2.2 -11.1 0.00 0.0
November 5
 3.9 -6.1 0.00 0.0
November 6
 3.3 0.6 0.10 0.0
November 7
 1.7 -6.1 1.24 14.5
November 8
 -6.1 -10.6 0.00 0.3
November 9
 -4.4 -10.0 0.53 7.6
November 10
 0.6 -6.1 0.20 2.5
November 11
 -3.3 -17.2 0.00 0.0
November 12
 -6.7 -22.2 0.00 0.0
November 13
 2.8 -15.0 0.18 3.0
November 14
 -3.3 -11.1 0.13 1.3
November 15
 1.1 -6.1 0.03 0.8
November 16
 0.6 -7.2 0.00 0.0
November 17
 -3.3 -8.3 0.41 3.6
November 18
 -3.3 -17.8 0.00 0.5
November 19
 -2.2 -22.2 0.00 0.0
November 20
 1.7 -3.3 0.00 0.0
November 21
 5.6 1.7 0.00 0.0
November 22
 10.0 1.1 0.00 0.0
November 23
 2.2 -6.7 0.00 0.3
November 24
 -1.1 -12.2 0.00 0.0
November 25
 3.9 -2.8 0.00 0.0
November 26
 3.3 -1.7 0.86 4.3
November 27
 1.1 -12.2 0.03 0.3
November 28
 -5.6 -13.9 0.00 0.0
November 29
 -1.1 -14.4 0.00 0.0
November 30
 -1.1 -21.7 0.00 0.0
December 1966 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
December 1
 -18.9 -23.9 0.00 0.0
December 2
 -13.3 -23.3 0.00 0.0
December 3
 -3.9 -18.3 0.03 0.5
December 4
 -2.8 -5.6 0.13 1.8
December 5
 0.0 -10.6 0.00 0.0
December 6
 5.0 -3.3 0.81 4.8
December 7
 -2.8 -11.1 0.00 0.0
December 8
 -3.3 -11.1 0.86 10.4
December 9
 -8.9 -22.8 0.03 0.5
December 10
 -11.1 -23.3 0.00 0.0
December 11
 -11.7 -25.6 0.00 0.0
December 12
 -3.9 -20.6 0.00 0.0
December 13
 0.0 -14.4 0.00 0.0
December 14
 -1.1 -7.2 0.00 0.0
December 15
 1.7 -5.6 0.00 0.0
December 16
 -0.6 -6.1 0.23 2.3
December 17
 -0.6 -16.1 0.69 7.9
December 18
 -13.3 -26.1 0.00 0.0
December 19
 -2.2 -21.1 0.41 5.1
December 20
 -3.9 -8.9 0.00 0.0
December 21
 -8.9 -20.0 0.08 2.3
December 22
 -13.3 -23.9 0.00 0.0
December 23
 -9.4 -20.0 0.00 0.0
December 24
 -11.1 -18.3 0.08 1.0
December 25
 -13.3 -17.2 0.00 0.0
December 26
 -7.8 -20.0 0.00 0.0
December 27
 -10.6 -23.9 0.00 0.0
December 28
 -6.7 -23.9 0.00 0.0
December 29
 -8.9 -22.2 0.00 0.0
December 30
 -8.9 -24.4 0.08 1.3
December 31
 -3.9 -12.8 0.41 4.8
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