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St. Catharines Weather in 1973

Historical record of St. Catharines, Ontario weather for the year 1973 based on NOAA data.
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1973 St. Catharines Weather Extremes
Highest temperature 34.4 °C September 4
Lowest temperature -16.1 °C February 17
Highest daily low 25.0 °C August 9
Lowest daily high -13.9 °C February 16
Most daily precipitation 3.1 cm April 27
Most daily snow 8.4 cm December 9
Total annual precipitation 71.7 cm -
Total annual snow 74.2 cm -
What was the hottest temperature in St. Catharines in 1973?
The highest temperature recorded in St. Catharines, Ontario in 1973 was 34.4 °C which happened 2 different times.
Highest Temperatures: All-Time By Year
Highest Temperatures in St. Catharines in 1973
Rank Temperature Date
1 34.4 °C Sep 4
1 34.4 °C Aug 28
3 33.9 °C Aug 29
4 33.3 °C Sep 3
4 33.3 °C Sep 2
4 33.3 °C Aug 31
7 32.2 °C Aug 30
7 32.2 °C Aug 27
7 32.2 °C Aug 9
7 32.2 °C Jul 8
7 32.2 °C Jun 11
What was the coldest temperature in St. Catharines in 1973?
The lowest temperature recorded in St. Catharines, Ontario in 1973 was -16.1 °C which happened on Feb 17.
Lowest Temperatures: All-Time By Year
Lowest Temperatures in St. Catharines in 1973
Rank Temperature Date
1 -16.1 °C February 17
2 -15.6 °C February 16
3 -15.0 °C February 28
3 -15.0 °C February 18
3 -15.0 °C February 13
3 -15.0 °C February 1
7 -14.4 °C January 31
8 -13.9 °C February 12
8 -13.9 °C February 11
10 -13.3 °C December 19
10 -13.3 °C February 9
10 -13.3 °C January 30
January 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
January 1
 2.2 0.0 0.00 0.0
January 2
 -2.8 -5.6 0.00 0.0
January 3
 7.8 -6.1 1.14 0.0
January 4
 3.3 1.1 0.00 0.0
January 5
 -1.7 -6.7 0.00 0.0
January 6
 -8.3 -11.7 0.00 0.0
January 7
 -8.9 -12.8 0.00 0.0
January 8
 -7.8 -12.8 0.00 0.0
January 9
 -3.9 -11.7 0.00 0.0
January 10
 -4.4 -11.1 0.00 0.0
January 11
 -4.4 -7.8 0.00 0.0
January 12
 -1.7 -11.1 0.00 0.0
January 13
 2.2 -6.1 0.00 0.0
January 14
 1.1 0.6 0.00 0.0
January 15
 2.8 -1.7 0.00 0.0
January 16
 6.7 -0.6 0.00 0.0
January 17
 9.4 2.8 0.00 0.0
January 18
 14.4 7.2 0.00 0.0
January 19
 11.1 3.3 0.69 0.0
January 20
 -1.7 -5.6 0.00 0.0
January 21
 6.1 -11.7 0.51 0.0
January 22
 11.7 -3.3 0.30 0.0
January 23
 3.3 1.7 0.00 0.0
January 24
 0.6 -1.1 0.00 0.0
January 25
 5.0 -3.9 0.00 0.0
January 26
 11.1 -1.1 0.00 0.0
January 27
 2.8 -1.1 0.10 0.0
January 28
 1.1 -1.1 0.25 2.5
January 29
 -5.0 -10.6 0.00 0.0
January 30
 -1.7 -13.3 0.00 0.0
January 31
 -6.1 -14.4 0.00 0.0
February 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
February 1
 10.0 -15.0 0.38 0.0
February 2
 13.9 4.4 0.86 0.0
February 3
 1.1 -1.1 0.00 0.0
February 4
 3.3 0.6 0.00 0.0
February 5
 -1.1 -3.9 0.00 0.0
February 6
 3.3 -5.0 0.15 0.0
February 7
 3.3 1.1 0.51 5.1
February 8
 -3.3 -6.1 0.13 1.3
February 9
 -5.0 -13.3 0.00 0.0
February 10
 -3.9 -10.6 0.00 0.0
February 11
 -3.9 -13.9 0.00 0.0
February 12
 -6.1 -13.9 0.00 0.0
February 13
 -2.2 -15.0 0.00 0.0
February 14
 1.7 -10.6 0.51 5.1
February 15
 -1.1 -8.3 0.41 4.1
February 16
 -13.9 -15.6 0.00 0.0
February 17
 -10.6 -16.1 0.00 0.0
February 18
 -1.1 -15.0 0.00 0.0
February 19
 2.8 -5.6 0.00 0.0
February 20
 3.3 0.6 0.61 6.1
February 21
 0.0 -3.3 0.51 5.1
February 22
 -2.8 -5.0 0.00 0.0
February 23
 -1.7 -11.7 0.00 0.0
February 24
 -0.6 -6.7 0.00 0.0
February 25
 -3.9 -7.2 0.30 3.0
February 26
 -3.9 -6.7 0.00 0.0
February 27
 -5.0 -12.8 0.00 0.0
February 28
 1.1 -15.0 0.00 0.0
March 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
March 1
 7.2 -4.4 0.00 0.0
March 2
 7.8 1.7 0.00 0.0
March 3
 6.7 0.0 0.00 0.0
March 4
 9.4 1.7 0.00 0.0
March 5
 3.3 0.0 0.53 0.0
March 6
 13.3 1.7 0.00 0.0
March 7
 16.1 1.1 0.25 0.0
March 8
 14.4 5.6 0.00 0.0
March 9
 8.3 0.6 0.43 0.0
March 10
 7.2 1.1 0.00 0.0
March 11
 17.2 2.2 1.07 0.0
March 12
 10.0 1.7 0.03 0.0
March 13
 5.6 2.2 0.36 0.0
March 14
 6.7 3.3 2.16 0.0
March 15
 21.7 2.8 0.00 0.0
March 16
 6.7 3.9 2.79 0.0
March 17
 2.8 -1.1 1.85 2.5
March 18
 -1.1 -5.0 0.00 0.0
March 19
 0.0 -5.0 0.00 0.0
March 20
 0.6 -4.4 0.00 0.0
March 21
 0.0 -4.4 0.00 0.0
March 22
 1.7 -1.1 0.00 0.0
March 23
 8.3 -3.9 0.00 0.0
March 24
 10.0 1.1 0.00 0.0
March 25
 12.8 1.7 0.00 0.0
March 26
 9.4 2.8 0.00 0.0
March 27
 6.1 -0.6 0.00 0.0
March 28
 10.6 -2.2 0.00 0.0
March 29
 16.7 3.9 0.08 0.0
March 30
 13.3 7.8 0.38 0.0
March 31
 10.6 6.1 1.14 0.0
April 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
April 1
 11.7 6.1 0.48 0.0
April 2
 8.9 3.9 0.05 0.0
April 3
 3.9 1.7 0.51 0.0
April 4
 3.9 2.8 1.65 0.0
April 5
 6.1 1.7 0.05 0.0
April 6
 11.7 1.7 0.18 0.0
April 7
 7.8 3.9 0.00 0.0
April 8
 7.2 1.1 0.00 0.0
April 9
 5.6 -1.1 0.28 0.0
April 10
 6.1 1.1 0.00 0.0
April 11
 3.9 -2.8 0.00 0.0
April 12
 5.6 -2.2 0.00 0.0
April 13
 6.1 -1.7 0.00 0.0
April 14
 10.0 -3.9 0.00 0.0
April 15
 17.8 1.7 0.00 0.0
April 16
 24.4 9.4 0.00 0.0
April 17
 16.1 5.6 0.51 0.0
April 18
 17.8 8.9 0.05 0.0
April 19
 16.7 5.0 0.00 0.0
April 20
 15.0 6.1 0.00 0.0
April 21
 26.1 7.2 0.00 0.0
April 22
 22.2 15.6 0.13 0.0
April 23
 16.7 8.9 0.00 0.0
April 24
 10.0 5.6 0.00 0.0
April 25
 11.1 5.0 0.00 0.0
April 26
 15.6 7.2 0.00 0.0
April 27
 7.2 6.1 3.10 0.0
April 28
 7.8 3.3 0.30 0.0
April 29
 12.8 2.8 0.00 0.0
April 30
 12.2 5.0 0.00 0.0
May 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
May 1
 17.2 5.6 0.61 0.0
May 2
 21.1 5.0 0.43 0.0
May 3
 12.2 8.3 0.00 0.0
May 4
 8.3 4.4 0.00 0.0
May 5
 13.9 3.3 0.00 0.0
May 6
 18.9 2.2 0.00 0.0
May 7
 18.9 5.6 0.05 0.0
May 8
 20.0 5.0 0.86 0.0
May 9
 19.4 7.2 0.00 0.0
May 10
 21.7 7.8 1.07 0.0
May 11
 13.3 8.9 0.61 0.0
May 12
 15.0 8.9 0.15 0.0
May 13
 10.0 5.6 0.08 0.0
May 14
 12.8 6.1 0.28 0.0
May 15
 12.2 5.6 0.36 0.0
May 16
 18.9 3.9 0.46 0.0
May 17
 9.4 2.8 0.00 0.0
May 18
 12.2 4.4 0.00 0.0
May 19
 17.8 -1.1 0.00 0.0
May 20
 14.4 7.8 0.20 0.0
May 21
 21.1 7.2 0.00 0.0
May 22
 21.1 9.4 0.00 0.0
May 23
 18.3 10.0 0.00 0.0
May 24
 18.3 11.1 0.00 0.0
May 25
 18.3 10.0 0.33 0.0
May 26
 16.1 11.1 0.18 0.0
May 27
 17.8 7.2 0.51 0.0
May 28
 21.7 8.9 0.64 0.0
May 29
 20.0 13.9 0.00 0.0
May 30
 14.4 10.6 0.56 0.0
May 31
 20.0 9.4 0.00 0.0
June 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
June 1
 22.2 13.9 0.28 0.0
June 2
 19.4 8.9 0.00 0.0
June 3
 19.4 8.9 0.13 0.0
June 4
 26.7 10.0 1.14 0.0
June 5
 28.9 16.7 0.41 0.0
June 6
 24.4 18.3 0.10 0.0
June 7
 26.1 15.6 0.00 0.0
June 8
 27.8 17.8 0.00 0.0
June 9
 27.8 20.6 0.00 0.0
June 10
 28.9 13.3 0.00 0.0
June 11
 32.2 17.8 0.00 0.0
June 12
 28.3 21.7 1.07 0.0
June 13
 26.1 16.7 0.00 0.0
June 14
 25.6 12.2 0.00 0.0
June 15
 27.2 14.4 0.79 0.0
June 16
 25.6 8.9 0.25 0.0
June 17
 17.2 6.1 0.46 0.0
June 18
 21.7 11.1 0.00 0.0
June 19
 29.4 5.6 0.00 0.0
June 20
 29.4 20.6 0.08 0.0
June 21
 27.2 20.6 0.00 0.0
June 22
 27.8 17.8 1.35 0.0
June 23
 23.9 15.6 0.76 0.0
June 24
 22.8 15.6 0.00 0.0
June 25
 23.9 15.6 0.00 0.0
June 26
 30.0 16.7 0.00 0.0
June 27
 26.1 18.3 0.05 0.0
June 28
 26.7 17.2 0.56 0.0
June 29
 23.3 15.0 0.00 0.0
June 30
 25.6 15.0 0.00 0.0
July 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
July 1
 30.6 16.7 0.00 0.0
July 2
 30.0 22.8 0.00 0.0
July 3
 28.9 19.4 0.25 0.0
July 4
 24.4 16.7 0.69 0.0
July 5
 23.9 n/a 0.00 0.0
July 6
 28.3 13.9 0.00 0.0
July 7
 31.7 16.7 0.00 0.0
July 8
 32.2 22.2 0.00 0.0
July 9
 26.7 22.8 0.00 0.0
July 10
 28.9 18.3 0.00 0.0
July 11
 22.2 17.2 0.00 0.0
July 12
 24.4 11.1 0.00 0.0
July 13
 29.4 18.3 0.13 0.0
July 14
 26.1 22.2 0.00 0.0
July 15
 26.7 16.7 0.00 0.0
July 16
 24.4 13.3 0.00 0.0
July 17
 26.7 13.3 0.00 0.0
July 18
 27.8 12.8 0.00 0.0
July 19
 29.4 17.2 0.30 0.0
July 20
 24.4 21.1 0.20 0.0
July 21
 26.7 18.3 0.00 0.0
July 22
 27.2 14.4 0.00 0.0
July 23
 26.1 15.6 0.00 0.0
July 24
 28.9 20.0 0.64 0.0
July 25
 28.3 21.1 0.10 0.0
July 26
 28.3 22.2 1.55 0.0
July 27
 26.7 21.7 0.23 0.0
July 28
 28.3 21.7 0.00 0.0
July 29
 26.7 16.7 0.00 0.0
July 30
 27.2 15.0 0.13 0.0
July 31
 26.1 20.0 0.15 0.0
August 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
August 1
 26.1 20.0 0.00 0.0
August 2
 27.8 20.6 0.00 0.0
August 3
 26.1 16.1 0.00 0.0
August 4
 28.3 15.6 0.00 0.0
August 5
 28.3 17.2 0.00 0.0
August 6
 30.6 21.1 0.00 0.0
August 7
 30.0 20.6 0.00 0.0
August 8
 31.1 22.2 0.00 0.0
August 9
 32.2 25.0 0.00 0.0
August 10
 29.4 22.8 0.28 0.0
August 11
 30.0 20.0 0.00 0.0
August 12
 27.2 19.4 0.00 0.0
August 13
 27.2 16.1 0.00 0.0
August 14
 27.2 16.1 0.00 0.0
August 15
 25.0 20.0 0.00 0.0
August 16
 26.1 15.6 0.00 0.0
August 17
 28.3 14.4 0.00 0.0
August 18
 25.6 19.4 0.00 0.0
August 19
 25.6 17.2 0.00 0.0
August 20
 27.8 17.2 0.23 0.0
August 21
 19.4 17.2 0.00 0.0
August 22
 21.1 13.9 0.00 0.0
August 23
 20.6 10.0 0.00 0.0
August 24
 23.9 13.9 0.00 0.0
August 25
 28.3 13.3 0.00 0.0
August 26
 29.4 20.0 0.00 0.0
August 27
 32.2 23.9 0.00 0.0
August 28
 34.4 23.3 0.00 0.0
August 29
 33.9 22.8 0.00 0.0
August 30
 32.2 23.3 0.00 0.0
August 31
 33.3 22.2 0.00 0.0
September 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
September 1
 28.3 22.8 1.02 0.0
September 2
 33.3 22.2 0.00 0.0
September 3
 33.3 22.2 0.00 0.0
September 4
 34.4 22.8 0.00 0.0
September 5
 31.1 23.9 0.41 0.0
September 6
 26.1 18.9 0.00 0.0
September 7
 23.3 12.2 0.00 0.0
September 8
 23.3 15.0 0.00 0.0
September 9
 24.4 11.7 0.00 0.0
September 10
 23.9 8.3 0.00 0.0
September 11
 23.9 15.6 0.00 0.0
September 12
 21.1 10.0 0.00 0.0
September 13
 21.7 7.8 0.00 0.0
September 14
 20.6 10.0 0.00 0.0
September 15
 23.3 10.6 0.00 0.0
September 16
 15.0 11.1 0.00 0.0
September 17
 18.3 6.1 1.91 0.0
September 18
 16.1 9.4 0.00 0.0
September 19
 20.0 6.1 0.00 0.0
September 20
 13.9 7.2 0.00 0.0
September 21
 13.9 1.7 0.41 0.0
September 22
 25.6 8.9 0.94 0.0
September 23
 22.8 12.2 1.12 0.0
September 24
 21.7 12.2 0.00 0.0
September 25
 21.7 8.9 0.00 0.0
September 26
 26.1 15.0 0.00 0.0
September 27
 26.1 17.8 0.00 0.0
September 28
 19.4 13.3 0.00 0.0
September 29
 18.9 11.1 0.00 0.0
September 30
 18.3 5.6 0.00 0.0
October 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
October 1
 n/a n/a n/a n/a
October 2
 n/a n/a n/a n/a
October 3
 n/a n/a n/a n/a
October 4
 n/a n/a n/a n/a
October 5
 n/a n/a n/a n/a
October 6
 n/a n/a n/a n/a
October 7
 n/a n/a n/a n/a
October 8
 n/a n/a n/a n/a
October 9
 n/a n/a n/a n/a
October 10
 n/a n/a n/a n/a
October 11
 n/a n/a n/a n/a
October 12
 n/a n/a n/a n/a
October 13
 n/a n/a n/a n/a
October 14
 n/a n/a n/a n/a
October 15
 n/a n/a n/a n/a
October 16
 n/a n/a n/a n/a
October 17
 n/a n/a n/a n/a
October 18
 n/a n/a n/a n/a
October 19
 n/a n/a n/a n/a
October 20
 n/a n/a n/a n/a
October 21
 n/a n/a n/a n/a
October 22
 n/a n/a n/a n/a
October 23
 n/a n/a n/a n/a
October 24
 n/a n/a n/a n/a
October 25
 n/a n/a n/a n/a
October 26
 n/a n/a n/a n/a
October 27
 n/a n/a n/a n/a
October 28
 n/a n/a n/a n/a
October 29
 n/a n/a n/a n/a
October 30
 n/a n/a n/a n/a
October 31
 n/a n/a n/a n/a
November 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
November 1
 10.6 7.2 0.76 0.0
November 2
 12.8 5.6 0.51 0.0
November 3
 8.9 5.0 0.00 0.0
November 4
 6.1 3.3 0.00 0.0
November 5
 6.1 2.2 0.00 0.0
November 6
 3.3 -1.7 0.00 0.0
November 7
 7.8 0.0 0.00 0.0
November 8
 9.4 1.1 0.00 0.0
November 9
 2.2 -2.2 0.00 0.0
November 10
 6.1 0.6 0.00 0.0
November 11
 11.1 3.3 0.00 0.0
November 12
 16.1 8.3 0.00 0.0
November 13
 17.2 12.8 0.00 0.0
November 14
 15.0 12.8 2.46 0.0
November 15
 8.3 4.4 2.62 0.0
November 16
 1.1 -1.7 0.25 0.0
November 17
 4.4 -1.7 0.23 0.0
November 18
 5.0 0.0 0.48 0.0
November 19
 4.4 2.2 0.00 0.0
November 20
 8.3 -2.2 0.00 0.0
November 21
 13.3 0.0 0.18 0.0
November 22
 12.2 7.2 0.00 0.0
November 23
 12.8 6.1 0.00 0.0
November 24
 15.0 1.7 1.30 0.0
November 25
 15.0 1.7 0.84 0.0
November 26
 7.2 2.2 0.48 0.0
November 27
 11.1 3.3 0.36 0.0
November 28
 8.3 7.8 0.79 0.0
November 29
 6.1 1.1 0.00 0.0
November 30
 7.8 2.2 0.00 0.0
December 1973 St. Catharines Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
December 1
 1.7 -1.1 0.00 0.0
December 2
 10.0 -2.8 0.00 0.0
December 3
 13.9 0.6 0.00 0.0
December 4
 13.3 7.2 1.14 0.0
December 5
 15.6 7.2 0.00 0.0
December 6
 2.8 0.6 0.00 0.0
December 7
 0.0 -1.7 0.00 0.0
December 8
 1.1 -4.4 0.00 0.0
December 9
 2.2 -2.8 0.89 8.4
December 10
 2.8 -1.7 0.03 0.0
December 11
 1.1 -3.3 0.00 0.0
December 12
 0.6 -2.2 0.00 0.0
December 13
 1.1 -3.3 1.80 6.6
December 14
 1.1 -5.6 0.10 1.0
December 15
 -6.7 -8.9 0.30 3.0
December 16
 -6.7 -9.4 0.64 6.4
December 17
 -7.8 -11.7 0.20 2.0
December 18
 -8.3 -12.2 0.00 0.0
December 19
 -5.0 -13.3 0.71 7.1
December 20
 1.1 -8.3 n/a n/a
December 21
 -5.0 -7.8 0.00 0.0
December 22
 0.6 -12.2 0.00 0.0
December 23
 0.0 -3.3 0.00 0.0
December 24
 -3.3 -7.8 0.00 0.0
December 25
 8.9 -11.1 1.02 0.0
December 26
 5.6 -3.9 1.40 0.0
December 27
 6.7 -0.6 0.00 0.0
December 28
 4.4 0.0 0.00 0.0
December 29
 3.9 0.6 0.51 0.0
December 30
 -2.8 -6.1 0.36 3.6
December 31
 -0.6 -5.6 0.13 1.3
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