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Sioux Lookout Weather in 1940

Historical record of Sioux Lookout, Ontario weather for the year 1940 based on NOAA data.
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1940 Sioux Lookout Weather Extremes
Highest temperature 35.0 °C July 22
Lowest temperature -37.8 °C January 17
Highest daily low 20.0 °C August 15
Lowest daily high -27.8 °C January 15
Most daily precipitation 2.8 cm November 11
Most daily snow 27.9 cm November 11
Total annual precipitation 47.1 cm -
Total annual snow 202.9 cm -
What was the hottest temperature in Sioux Lookout in 1940?
The highest temperature recorded in Sioux Lookout, Ontario in 1940 was 35.0 °C which happened on July 22.
Highest Temperatures: All-Time By Year
Highest Temperatures in Sioux Lookout in 1940
Rank Temperature Date
1 35.0 °C Jul 22
2 34.4 °C Jul 21
3 32.2 °C Aug 13
3 32.2 °C Jul 20
5 31.7 °C Aug 14
6 31.1 °C Aug 12
6 31.1 °C Aug 11
6 31.1 °C Jul 24
6 31.1 °C Jul 5
10 30.6 °C Jul 19
What was the coldest temperature in Sioux Lookout in 1940?
The lowest temperature recorded in Sioux Lookout, Ontario in 1940 was -37.8 °C which happened on Jan 17.
Lowest Temperatures: All-Time By Year
Lowest Temperatures in Sioux Lookout in 1940
Rank Temperature Date
1 -37.8 °C January 17
2 -37.2 °C January 16
3 -34.4 °C December 12
4 -33.3 °C January 15
4 -33.3 °C January 4
6 -32.2 °C December 8
6 -32.2 °C February 23
8 -31.7 °C December 13
8 -31.7 °C February 24
10 -31.1 °C February 25
January 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
January 1
 -16.1 -24.4 0.30 3.0
January 2
 -15.6 -19.4 0.05 0.5
January 3
 -22.2 -28.3 0.05 0.5
January 4
 -15.6 -33.3 0.18 1.8
January 5
 -12.8 -18.3 0.00 0.0
January 6
 -11.7 -28.9 0.00 0.0
January 7
 -7.8 -26.1 0.00 0.0
January 8
 -9.4 -20.6 0.05 0.5
January 9
 -6.7 -14.4 0.08 0.8
January 10
 -4.4 -12.2 0.36 3.6
January 11
 -4.4 -8.3 0.18 1.8
January 12
 -10.6 -21.1 0.00 0.0
January 13
 -6.7 -17.2 0.08 0.8
January 14
 -8.9 -16.1 0.08 0.8
January 15
 -27.8 -33.3 0.00 0.0
January 16
 -22.8 -37.2 0.00 0.0
January 17
 -26.7 -37.8 0.13 1.3
January 18
 -12.2 -28.9 0.25 2.5
January 19
 -13.3 -15.6 0.20 2.0
January 20
 -8.9 -18.3 0.05 0.5
January 21
 -8.9 -14.4 0.13 1.3
January 22
 -11.1 -15.0 0.00 0.0
January 23
 -11.7 -15.0 0.08 0.8
January 24
 -18.3 -23.3 0.00 0.0
January 25
 -15.6 -23.3 0.00 0.0
January 26
 -11.7 -23.9 0.00 0.0
January 27
 -8.3 -26.7 0.00 0.0
January 28
 -7.8 -17.2 0.00 0.0
January 29
 -9.4 -22.2 0.00 0.0
January 30
 -4.4 -22.2 0.28 2.8
January 31
 -2.8 -6.1 0.05 0.5
February 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
February 1
 -10.6 -15.6 0.00 0.0
February 2
 -3.3 -20.0 0.00 0.0
February 3
 -2.2 -11.7 0.00 0.0
February 4
 0.0 -10.6 0.00 0.0
February 5
 -4.4 -17.2 0.38 3.8
February 6
 -7.2 -8.9 0.20 2.0
February 7
 -8.9 -17.2 0.05 0.5
February 8
 -17.8 -29.4 0.00 0.0
February 9
 -4.4 -25.0 0.08 0.8
February 10
 -3.9 -8.3 0.00 0.0
February 11
 -10.0 -12.2 0.05 0.5
February 12
 -5.0 -27.2 0.00 0.0
February 13
 -5.0 -23.3 0.00 0.0
February 14
 -1.7 -20.0 0.00 0.0
February 15
 -1.1 -12.8 0.05 0.5
February 16
 -1.1 -5.0 0.56 5.6
February 17
 -3.3 -5.6 0.00 0.0
February 18
 -2.8 -6.7 0.00 0.0
February 19
 -3.3 -6.7 0.00 0.0
February 20
 -5.0 -13.3 0.00 0.0
February 21
 -5.0 -15.6 0.51 5.1
February 22
 -16.7 -25.6 0.00 0.0
February 23
 -17.2 -32.2 0.00 0.0
February 24
 -15.6 -31.7 0.00 0.0
February 25
 -10.6 -31.1 0.00 0.0
February 26
 -6.7 -30.6 0.13 1.3
February 27
 -7.8 -16.1 0.00 0.0
February 28
 -10.6 -20.6 0.00 0.0
February 29
 -9.4 -20.0 0.00 0.0
March 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
March 1
 -2.2 -23.3 0.00 0.0
March 2
 -1.7 -5.0 0.00 0.0
March 3
 -0.6 -3.9 0.00 0.0
March 4
 -3.3 -12.2 0.00 0.0
March 5
 0.6 -6.7 0.00 0.0
March 6
 1.1 -16.1 0.00 0.0
March 7
 1.1 -14.4 0.00 0.0
March 8
 -4.4 -10.6 0.00 0.0
March 9
 -8.3 -20.6 0.00 0.0
March 10
 -9.4 -27.8 0.00 0.0
March 11
 -5.6 -30.0 0.00 0.0
March 12
 -4.4 -15.6 0.00 0.0
March 13
 -9.4 -17.2 0.30 3.0
March 14
 -8.9 -15.0 0.18 1.8
March 15
 -5.0 -16.7 0.08 0.8
March 16
 -2.8 -18.3 0.00 0.0
March 17
 0.0 -12.8 0.08 0.8
March 18
 -0.6 -6.1 0.00 0.0
March 19
 -3.9 -14.4 0.00 0.0
March 20
 -11.1 -21.7 0.00 0.0
March 21
 -15.0 -27.2 0.00 0.0
March 22
 -15.0 -28.3 0.00 0.0
March 23
 -12.8 -30.0 0.00 0.0
March 24
 -9.4 -28.3 0.00 0.0
March 25
 -5.6 -25.0 0.00 0.0
March 26
 -5.0 -22.8 0.00 0.0
March 27
 2.2 -26.1 0.00 0.0
March 28
 2.2 -13.3 1.57 4.6
March 29
 0.0 -2.8 1.02 9.4
March 30
 -1.1 -3.9 0.23 2.3
March 31
 1.1 -6.7 0.00 0.0
April 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
April 1
 5.0 -13.3 0.00 0.0
April 2
 5.6 -11.1 0.00 0.0
April 3
 2.2 -2.8 0.00 0.0
April 4
 4.4 -8.3 0.00 0.0
April 5
 7.2 -6.1 0.00 0.0
April 6
 8.3 -5.6 0.00 0.0
April 7
 8.9 1.1 0.33 0.0
April 8
 -1.1 -5.0 0.00 0.0
April 9
 0.6 -10.0 0.00 0.0
April 10
 -1.7 -13.3 0.00 0.0
April 11
 -4.4 -18.3 0.05 0.5
April 12
 -5.0 -11.7 0.00 0.0
April 13
 4.4 -18.9 0.00 0.0
April 14
 6.7 -3.3 0.00 0.0
April 15
 3.9 -7.2 0.00 0.0
April 16
 5.0 -10.6 0.00 0.0
April 17
 8.9 -7.2 0.00 0.0
April 18
 11.7 -5.6 0.00 0.0
April 19
 17.2 0.6 0.00 0.0
April 20
 17.2 -1.1 0.00 0.0
April 21
 13.9 0.0 0.03 0.0
April 22
 2.2 -2.2 0.00 0.0
April 23
 3.9 -2.2 0.03 0.3
April 24
 5.6 -2.8 0.00 0.0
April 25
 7.2 -5.6 0.00 0.0
April 26
 11.7 -0.6 0.00 0.0
April 27
 8.3 -1.1 0.71 0.0
April 28
 7.8 4.4 2.34 0.0
April 29
 1.7 -1.7 2.44 20.8
April 30
 -1.7 -6.7 0.71 7.1
May 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
May 1
 6.7 -6.7 0.00 0.0
May 2
 10.0 -7.2 0.00 0.0
May 3
 12.8 -5.6 0.00 0.0
May 4
 15.0 3.3 0.00 0.0
May 5
 14.4 -0.6 0.33 0.0
May 6
 3.9 0.0 0.08 0.0
May 7
 7.2 -0.6 0.00 0.0
May 8
 16.7 -2.2 0.00 0.0
May 9
 15.6 1.7 0.00 0.0
May 10
 13.3 -1.1 0.00 0.0
May 11
 20.6 0.0 0.00 0.0
May 12
 25.6 8.9 0.00 0.0
May 13
 15.0 1.1 0.00 0.0
May 14
 7.8 -0.6 0.00 0.0
May 15
 10.0 0.6 0.00 0.0
May 16
 7.2 2.8 0.15 0.0
May 17
 17.2 0.6 0.00 0.0
May 18
 13.3 2.8 0.25 0.0
May 19
 13.3 6.1 0.00 0.0
May 20
 16.1 5.6 0.00 0.0
May 21
 16.1 6.1 0.00 0.0
May 22
 8.9 5.0 0.05 0.0
May 23
 10.0 1.7 0.18 0.0
May 24
 13.3 2.2 0.05 0.0
May 25
 14.4 1.7 0.58 0.0
May 26
 15.0 8.3 0.00 0.0
May 27
 12.2 6.7 0.00 0.0
May 28
 21.1 7.8 0.00 0.0
May 29
 24.4 2.2 0.00 0.0
May 30
 26.7 5.6 0.00 0.0
May 31
 28.9 9.4 0.00 0.0
June 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
June 1
 28.9 9.4 0.38 0.0
June 2
 16.7 12.2 0.13 0.0
June 3
 13.3 6.1 0.00 0.0
June 4
 21.1 3.3 0.00 0.0
June 5
 26.1 10.0 0.00 0.0
June 6
 21.7 12.2 0.00 0.0
June 7
 19.4 8.3 0.00 0.0
June 8
 20.6 4.4 0.00 0.0
June 9
 22.2 7.2 0.43 0.0
June 10
 11.1 6.7 0.10 0.0
June 11
 21.7 3.3 0.00 0.0
June 12
 21.1 12.8 0.79 0.0
June 13
 15.0 2.2 0.58 0.0
June 14
 26.1 7.8 0.64 0.0
June 15
 17.8 8.9 0.08 0.0
June 16
 26.7 8.9 0.03 0.0
June 17
 27.2 7.8 0.00 0.0
June 18
 21.7 7.2 0.13 0.0
June 19
 12.8 5.6 0.15 0.0
June 20
 17.2 2.8 0.00 0.0
June 21
 19.4 3.9 0.48 0.0
June 22
 13.9 8.9 0.00 0.0
June 23
 15.0 10.6 0.00 0.0
June 24
 23.9 8.9 0.00 0.0
June 25
 13.9 7.2 0.15 0.0
June 26
 15.6 6.1 0.00 0.0
June 27
 18.3 2.8 0.56 0.0
June 28
 17.2 9.4 0.30 0.0
June 29
 20.0 9.4 0.15 0.0
June 30
 17.2 5.0 0.13 0.0
July 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
July 1
 17.2 8.3 0.30 0.0
July 2
 20.6 6.7 0.05 0.0
July 3
 22.8 6.1 0.00 0.0
July 4
 28.9 10.6 0.00 0.0
July 5
 31.1 16.7 0.00 0.0
July 6
 27.8 18.3 0.05 0.0
July 7
 24.4 15.0 0.00 0.0
July 8
 25.0 9.4 0.00 0.0
July 9
 25.0 7.2 0.10 0.0
July 10
 20.6 10.0 0.00 0.0
July 11
 20.0 6.7 0.00 0.0
July 12
 23.9 6.1 0.00 0.0
July 13
 21.7 13.3 1.55 0.0
July 14
 18.9 11.7 0.00 0.0
July 15
 22.2 8.3 0.00 0.0
July 16
 26.7 11.1 0.00 0.0
July 17
 27.8 15.6 0.00 0.0
July 18
 25.0 16.7 0.00 0.0
July 19
 30.6 14.4 0.00 0.0
July 20
 32.2 16.7 0.00 0.0
July 21
 34.4 17.2 0.00 0.0
July 22
 35.0 18.3 0.00 0.0
July 23
 27.2 17.8 0.76 0.0
July 24
 31.1 16.7 0.05 0.0
July 25
 22.2 16.1 0.00 0.0
July 26
 22.8 11.1 0.00 0.0
July 27
 24.4 8.9 0.00 0.0
July 28
 18.3 11.7 1.09 0.0
July 29
 23.3 14.4 0.00 0.0
July 30
 25.6 11.7 0.00 0.0
July 31
 28.9 10.0 0.00 0.0
August 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
August 1
 28.9 16.7 0.00 0.0
August 2
 24.4 15.0 0.00 0.0
August 3
 27.8 18.3 0.00 0.0
August 4
 29.4 11.1 0.20 0.0
August 5
 23.3 15.0 0.03 0.0
August 6
 29.4 11.1 0.00 0.0
August 7
 30.0 17.2 0.00 0.0
August 8
 26.7 16.1 0.00 0.0
August 9
 28.3 9.4 0.00 0.0
August 10
 26.7 18.9 0.00 0.0
August 11
 31.1 19.4 0.00 0.0
August 12
 31.1 13.9 0.00 0.0
August 13
 32.2 15.6 0.00 0.0
August 14
 31.7 18.3 0.00 0.0
August 15
 29.4 20.0 0.00 0.0
August 16
 25.6 15.6 0.00 0.0
August 17
 21.7 9.4 0.00 0.0
August 18
 14.4 11.1 0.00 0.0
August 19
 17.8 5.0 0.56 0.0
August 20
 21.1 6.1 0.18 0.0
August 21
 12.8 7.2 0.20 0.0
August 22
 11.7 2.2 0.00 0.0
August 23
 17.8 0.0 0.00 0.0
August 24
 21.1 3.3 0.00 0.0
August 25
 21.1 8.3 0.00 0.0
August 26
 18.9 7.2 0.00 0.0
August 27
 20.6 9.4 0.00 0.0
August 28
 23.9 8.9 0.28 0.0
August 29
 17.8 12.8 0.13 0.0
August 30
 15.0 12.2 0.41 0.0
August 31
 21.1 11.7 0.00 0.0
September 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
September 1
 23.9 6.1 0.00 0.0
September 2
 26.1 9.4 0.00 0.0
September 3
 25.0 13.3 0.00 0.0
September 4
 26.1 13.9 0.00 0.0
September 5
 29.4 17.8 0.00 0.0
September 6
 30.0 19.4 0.03 0.0
September 7
 25.0 16.1 0.00 0.0
September 8
 18.3 11.7 0.66 0.0
September 9
 8.3 4.4 0.25 0.0
September 10
 11.7 3.3 0.00 0.0
September 11
 15.6 4.4 0.00 0.0
September 12
 20.6 1.1 0.00 0.0
September 13
 16.1 8.9 0.00 0.0
September 14
 21.1 2.2 0.00 0.0
September 15
 21.7 8.3 0.00 0.0
September 16
 23.3 11.1 0.00 0.0
September 17
 21.7 13.9 0.00 0.0
September 18
 27.2 12.8 0.05 0.0
September 19
 21.7 12.2 0.53 0.0
September 20
 21.1 15.0 0.03 0.0
September 21
 22.8 9.4 0.00 0.0
September 22
 23.3 7.2 0.00 0.0
September 23
 17.2 11.1 0.10 0.0
September 24
 8.3 0.0 0.03 0.0
September 25
 11.7 1.7 0.00 0.0
September 26
 20.0 4.4 0.00 0.0
September 27
 22.8 6.1 0.00 0.0
September 28
 16.7 6.1 0.00 0.0
September 29
 16.7 0.0 0.00 0.0
September 30
 22.8 7.2 0.00 0.0
October 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
October 1
 22.2 7.8 0.00 0.0
October 2
 23.3 6.1 0.00 0.0
October 3
 17.8 7.2 0.00 0.0
October 4
 16.1 8.9 1.68 0.0
October 5
 13.3 11.1 0.51 0.0
October 6
 12.2 7.8 0.51 0.0
October 7
 7.2 3.3 0.30 0.0
October 8
 8.3 5.0 0.00 0.0
October 9
 19.4 4.4 0.00 0.0
October 10
 18.9 3.3 0.00 0.0
October 11
 17.8 1.1 0.03 0.0
October 12
 13.3 9.4 0.00 0.0
October 13
 9.4 4.4 0.00 0.0
October 14
 6.7 0.6 0.00 0.0
October 15
 5.6 -8.9 0.00 0.0
October 16
 12.8 1.1 0.00 0.0
October 17
 4.4 0.6 0.00 0.0
October 18
 5.6 -1.1 0.46 0.0
October 19
 3.3 1.1 0.03 0.0
October 20
 2.2 -3.3 0.05 0.0
October 21
 8.9 -6.1 0.00 0.0
October 22
 17.2 1.7 0.00 0.0
October 23
 6.7 5.0 0.05 0.0
October 24
 4.4 1.1 0.00 0.0
October 25
 8.9 -5.0 0.00 0.0
October 26
 8.3 -3.3 0.00 0.0
October 27
 5.6 -2.8 0.00 0.0
October 28
 5.6 -1.1 0.33 0.0
October 29
 2.8 1.1 1.37 0.0
October 30
 3.9 1.7 0.00 0.0
October 31
 6.1 2.8 0.41 0.0
November 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
November 1
 7.2 5.0 0.53 0.0
November 2
 6.1 2.8 0.38 0.0
November 3
 3.3 -0.6 0.00 0.0
November 4
 3.9 0.0 1.24 6.4
November 5
 -1.7 -6.7 0.00 0.0
November 6
 -1.7 -15.0 0.13 1.3
November 7
 0.0 -5.6 0.05 0.5
November 8
 0.6 -3.9 0.89 8.9
November 9
 -9.4 -11.1 0.46 4.6
November 10
 -8.3 -12.8 0.64 6.4
November 11
 -6.1 -11.7 2.79 27.9
November 12
 -6.7 -10.6 0.97 9.7
November 13
 -16.1 -18.3 0.08 0.8
November 14
 -9.4 -21.1 0.00 0.0
November 15
 -2.8 -13.3 0.00 0.0
November 16
 2.2 -6.7 0.13 0.8
November 17
 1.7 -1.1 0.10 1.0
November 18
 2.8 -2.2 0.00 0.0
November 19
 2.2 -1.7 0.10 1.0
November 20
 2.2 -3.9 0.00 0.0
November 21
 -2.2 -10.6 0.00 0.0
November 22
 -5.6 -14.4 0.05 0.5
November 23
 -3.3 -10.6 0.43 4.3
November 24
 -11.1 -17.2 0.00 0.0
November 25
 -10.6 -25.6 0.20 2.0
November 26
 -7.8 -15.6 0.71 7.1
November 27
 -13.9 -20.0 0.08 0.8
November 28
 -16.1 -27.8 0.03 0.3
November 29
 -15.6 -26.7 0.00 0.0
November 30
 -16.7 -30.0 0.00 0.0
December 1940 Sioux Lookout Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
December 1
 -19.4 -26.7 0.00 0.0
December 2
 -23.3 -27.2 0.00 0.0
December 3
 -18.9 -28.9 0.15 1.5
December 4
 -17.8 -28.3 0.00 0.0
December 5
 -10.0 -30.6 0.08 0.8
December 6
 -5.6 -15.6 0.18 1.8
December 7
 -16.1 -21.7 0.03 0.3
December 8
 -7.8 -32.2 0.33 3.3
December 9
 -7.8 -14.4 0.61 6.1
December 10
 -8.9 -16.7 0.13 1.3
December 11
 -15.0 -20.0 0.00 0.0
December 12
 -23.3 -34.4 0.13 1.3
December 13
 -15.0 -31.7 0.00 0.0
December 14
 -6.7 -20.6 0.00 0.0
December 15
 -8.9 -16.7 0.05 0.5
December 16
 -11.7 -16.7 0.00 0.0
December 17
 -7.8 -25.6 0.00 0.0
December 18
 -2.8 -16.7 0.08 0.8
December 19
 -1.7 -8.3 0.00 0.0
December 20
 -5.6 -14.4 0.05 0.5
December 21
 -4.4 -16.1 0.03 0.3
December 22
 -3.9 -6.1 0.03 0.3
December 23
 1.1 -6.1 0.00 0.0
December 24
 2.2 0.0 0.00 0.0
December 25
 2.2 0.6 0.15 0.5
December 26
 -7.2 -10.0 0.00 0.0
December 27
 -1.7 -8.9 0.20 2.0
December 28
 0.0 -2.8 0.00 0.0
December 29
 -2.2 -2.8 0.00 0.0
December 30
 -7.2 -13.3 0.00 0.0
December 31
 -4.4 -21.7 0.00 0.0
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Weather Station Details
Years Station Coordinates
1938–2024 Sioux Lookout A location
1933–1938 Sioux Lookout location
1914–1932 Sioux Lookout location
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