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Oshawa Weather in 2021

Historical record of Oshawa, Ontario weather for the year 2021 based on NOAA data.
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Year:
2021 Oshawa Weather Extremes
Highest temperature 31.8 °C August 23
Lowest temperature -21.7 °C February 17
Highest daily low 22.6 °C August 10
Lowest daily high -9.2 °C February 13
Most daily precipitation 4.8 cm September 22
Total annual precipitation 70.9 cm -
What was the hottest temperature in Oshawa in 2021?
The highest temperature recorded in Oshawa, Ontario in 2021 was 31.8 °C which happened 3 different times.
Highest Temperatures: All-Time By Year
Highest Temperatures in Oshawa in 2021
Rank Temperature Date
1 31.8 °C Aug 23
1 31.8 °C Jun 28
1 31.8 °C Jun 5
4 31.3 °C Jul 6
5 30.7 °C Aug 26
6 30.4 °C Aug 19
6 30.4 °C May 21
8 30.3 °C Aug 9
9 30.2 °C Aug 24
9 30.2 °C Aug 11
What was the coldest temperature in Oshawa in 2021?
The lowest temperature recorded in Oshawa, Ontario in 2021 was -21.7 °C which happened on Feb 17.
Lowest Temperatures: All-Time By Year
Lowest Temperatures in Oshawa in 2021
Rank Temperature Date
1 -21.7 °C February 17
2 -19.4 °C January 30
3 -16.9 °C February 21
4 -16.6 °C February 16
5 -16.2 °C February 20
6 -16.1 °C January 29
7 -15.1 °C February 12
8 -15.0 °C January 28
9 -14.5 °C March 2
10 -14.3 °C February 10
January 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
January 1
 1.9 -6.4 0.20
January 2
 1.3 -4.4 0.77
January 3
 1.1 -4.0 0.27
January 4
 -0.1 -4.9 0.02
January 5
 0.6 -1.1 0.00
January 6
 0.9 -1.3 0.00
January 7
 -0.5 -8.3 0.00
January 8
 -3.6 -10.3 0.00
January 9
 2.7 -5.2 0.00
January 10
 0.7 -6.6 0.00
January 11
 0.9 -8.3 0.00
January 12
 -0.5 -1.5 0.00
January 13
 2.7 -1.2 0.00
January 14
 4.6 0.1 0.00
January 15
 5.6 1.2 0.62
January 16
 4.5 -0.8 0.00
January 17
 3.0 -3.1 0.00
January 18
 0.5 -5.0 0.00
January 19
 1.5 -3.3 0.02
January 20
 -1.3 -8.5 0.00
January 21
 3.1 -1.3 0.00
January 22
 1.8 -9.8 0.00
January 23
 -5.8 -13.7 0.00
January 24
 -3.6 -11.7 0.00
January 25
 1.7 -5.9 0.00
January 26
 -1.5 -6.4 0.00
January 27
 -3.8 -11.1 0.00
January 28
 -8.2 -15.0 0.00
January 29
 -8.5 -16.1 0.00
January 30
 -3.7 -19.4 0.00
January 31
 -5.4 -14.1 0.00
February 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
February 1
 -4.4 -11.7 0.00
February 2
 0.9 -10.6 0.00
February 3
 0.5 -8.7 0.00
February 4
 4.6 -7.4 0.00
February 5
 2.4 -7.0 0.68
February 6
 -5.6 -8.2 0.00
February 7
 -5.0 -12.8 0.00
February 8
 -5.9 -13.6 0.00
February 9
 -2.5 -10.4 0.00
February 10
 -4.4 -14.3 0.00
February 11
 -4.5 -11.8 0.00
February 12
 -8.4 -15.1 0.00
February 13
 -9.2 -14.0 0.00
February 14
 -3.4 -13.7 0.00
February 15
 -3.5 -7.9 0.00
February 16
 -6.5 -16.6 0.00
February 17
 -3.1 -21.7 0.00
February 18
 -3.2 -8.3 0.00
February 19
 -3.0 -13.9 0.14
February 20
 -2.3 -16.2 0.00
February 21
 -1.4 -16.9 0.00
February 22
 2.8 -1.4 1.08
February 23
 4.3 -0.4 0.22
February 24
 7.2 -4.2 0.00
February 25
 0.1 -3.5 0.00
February 26
 2.5 -8.5 0.00
February 27
 6.0 -3.5 0.61
February 28
 5.0 -4.2 0.17
March 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
March 1
 4.3 -13.3 0.00
March 2
 0.3 -14.5 0.00
March 3
 6.9 -1.2 0.00
March 4
 0.0 -9.1 0.00
March 5
 0.1 -11.4 0.00
March 6
 -1.9 -11.5 0.00
March 7
 -1.3 -13.9 0.00
March 8
 4.1 -13.3 0.02
March 9
 9.5 -4.1 0.00
March 10
 14.1 -0.1 0.00
March 11
 16.5 5.7 0.08
March 12
 11.0 -4.6 0.00
March 13
 5.3 -8.3 0.00
March 14
 2.5 -6.9 0.00
March 15
 -1.9 -10.0 0.00
March 16
 n/a n/a 0.00
March 17
 7.2 -3.4 0.00
March 18
 7.5 -3.0 0.02
March 19
 3.6 -6.2 0.00
March 20
 12.7 -7.8 0.00
March 21
 n/a n/a 0.00
March 22
 15.1 -3.8 0.00
March 23
 15.4 -2.2 0.00
March 24
 16.1 7.9 0.08
March 25
 18.1 1.8 0.12
March 26
 12.6 2.3 2.04
March 27
 7.3 2.5 0.00
March 28
 10.3 0.6 0.79
March 29
 6.9 -0.7 0.00
March 30
 16.9 -0.7 0.00
March 31
 13.0 0.5 0.02
April 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
April 1
 2.9 -3.1 0.00
April 2
 4.3 -5.8 0.00
April 3
 7.0 -8.4 0.04
April 4
 12.1 -2.6 0.00
April 5
 12.7 1.0 0.00
April 6
 12.8 0.0 0.17
April 7
 17.8 6.5 0.00
April 8
 22.6 7.5 0.00
April 9
 17.8 10.2 0.00
April 10
 21.2 9.1 0.00
April 11
 16.2 11.7 2.38
April 12
 12.3 7.9 0.55
April 13
 13.4 2.2 0.00
April 14
 13.9 2.2 0.00
April 15
 7.7 3.8 0.20
April 16
 8.6 2.8 0.04
April 17
 11.8 1.3 0.00
April 18
 14.3 -1.0 0.00
April 19
 14.7 -1.5 0.17
April 20
 5.7 -0.9 0.00
April 21
 3.8 -1.8 0.40
April 22
 5.7 -2.0 0.00
April 23
 17.9 -3.4 0.00
April 24
 16.0 0.8 0.00
April 25
 11.0 0.1 0.04
April 26
 8.3 -1.4 0.13
April 27
 14.5 3.5 0.36
April 28
 15.7 8.3 0.58
April 29
 10.5 8.2 1.11
April 30
 8.9 3.0 0.00
May 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
May 1
 10.8 0.7 0.00
May 2
 13.1 2.0 0.84
May 3
 15.4 8.4 0.14
May 4
 10.3 7.5 0.39
May 5
 12.8 4.6 0.00
May 6
 12.3 2.8 0.00
May 7
 9.8 0.5 0.00
May 8
 14.6 -0.7 0.00
May 9
 12.2 2.0 0.00
May 10
 13.6 2.1 0.02
May 11
 10.7 1.5 0.06
May 12
 17.7 4.7 0.00
May 13
 19.8 7.3 0.00
May 14
 20.2 4.0 0.00
May 15
 21.5 3.7 0.00
May 16
 22.4 5.3 0.00
May 17
 n/a n/a n/a
May 18
 25.5 7.2 0.00
May 19
 27.3 9.7 0.00
May 20
 28.9 12.8 0.00
May 21
 30.4 13.6 0.00
May 22
 26.7 16.0 0.00
May 23
 23.6 9.8 0.00
May 24
 20.4 10.5 0.00
May 25
 27.5 11.8 0.00
May 26
 25.2 10.0 0.00
May 27
 17.3 8.6 0.00
May 28
 10.2 2.3 0.55
May 29
 16.0 3.8 0.00
May 30
 18.1 4.9 0.00
May 31
 20.9 2.8 0.00
June 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
June 1
 23.2 9.9 0.00
June 2
 24.2 7.5 0.30
June 3
 20.8 13.1 0.40
June 4
 23.7 12.4 0.00
June 5
 31.8 13.3 0.00
June 6
 28.9 15.4 0.00
June 7
 27.6 14.7 0.00
June 8
 27.0 18.4 0.12
June 9
 28.5 17.4 0.00
June 10
 24.8 15.5 0.00
June 11
 25.4 15.9 0.00
June 12
 24.8 15.3 0.00
June 13
 26.0 15.3 0.00
June 14
 22.1 14.1 0.22
June 15
 22.9 11.6 0.00
June 16
 21.1 8.4 0.00
June 17
 23.3 6.6 0.00
June 18
 21.4 13.0 1.42
June 19
 28.6 13.2 0.00
June 20
 26.2 12.4 0.00
June 21
 27.2 12.6 0.19
June 22
 18.9 8.0 0.00
June 23
 22.2 5.8 0.00
June 24
 26.9 13.1 0.00
June 25
 23.1 18.0 1.33
June 26
 26.4 17.9 0.74
June 27
 28.5 21.5 0.00
June 28
 31.8 19.1 0.00
June 29
 28.7 19.6 1.36
June 30
 28.1 17.7 0.09
July 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
July 1
 26.5 15.9 0.00
July 2
 23.3 15.3 0.85
July 3
 23.5 13.0 0.00
July 4
 22.6 16.0 0.00
July 5
 27.7 16.7 0.04
July 6
 31.3 19.0 0.00
July 7
 22.0 15.0 0.93
July 8
 19.6 13.8 4.15
July 9
 19.5 15.3 0.32
July 10
 24.0 13.5 0.00
July 11
 22.3 13.6 0.00
July 12
 24.2 18.5 0.00
July 13
 26.9 19.5 1.12
July 14
 27.2 20.2 0.00
July 15
 28.1 18.5 2.03
July 16
 24.2 17.6 0.00
July 17
 21.4 17.7 0.34
July 18
 28.6 18.1 0.02
July 19
 28.5 19.6 0.00
July 20
 27.2 16.7 0.06
July 21
 25.1 13.9 0.00
July 22
 25.2 14.3 0.00
July 23
 24.6 13.8 0.00
July 24
 22.9 12.1 0.87
July 25
 29.5 16.4 0.00
July 26
 29.0 14.8 0.00
July 27
 24.1 14.4 0.22
July 28
 23.8 14.9 0.00
July 29
 21.6 14.6 0.97
July 30
 20.6 10.1 0.00
July 31
 20.3 8.8 0.98
August 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
August 1
 21.2 13.7 0.02
August 2
 24.3 12.7 0.00
August 3
 25.3 10.4 0.00
August 4
 26.6 13.7 0.00
August 5
 26.6 13.2 0.00
August 6
 27.7 14.1 0.00
August 7
 27.8 17.1 1.30
August 8
 26.3 17.7 0.00
August 9
 30.3 19.1 0.00
August 10
 26.9 22.6 0.00
August 11
 30.2 20.4 0.02
August 12
 28.3 21.5 0.12
August 13
 28.0 18.1 1.55
August 14
 24.1 13.5 0.00
August 15
 22.9 12.6 0.00
August 16
 24.5 11.9 0.00
August 17
 27.1 20.1 0.00
August 18
 27.0 19.2 0.00
August 19
 30.4 20.2 0.00
August 20
 30.0 20.1 0.00
August 21
 28.8 19.9 0.00
August 22
 29.7 18.6 0.00
August 23
 31.8 19.6 0.00
August 24
 30.2 17.0 0.00
August 25
 29.3 18.8 0.00
August 26
 30.7 19.5 0.00
August 27
 26.9 18.8 0.00
August 28
 26.6 17.4 0.27
August 29
 29.2 21.0 0.80
August 30
 28.5 16.4 0.00
August 31
 25.2 13.7 0.00
September 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
September 1
 23.7 13.5 0.00
September 2
 19.5 9.0 0.00
September 3
 22.1 9.5 0.00
September 4
 23.1 10.8 0.40
September 5
 25.8 16.2 0.35
September 6
 22.8 13.1 0.04
September 7
 23.4 9.3 2.32
September 8
 25.4 15.8 2.02
September 9
 21.3 11.4 0.00
September 10
 23.3 10.1 0.00
September 11
 24.5 9.0 0.00
September 12
 24.5 15.0 0.15
September 13
 21.7 10.6 0.00
September 14
 24.0 12.0 1.23
September 15
 21.9 11.9 0.00
September 16
 22.3 10.9 0.00
September 17
 25.4 15.8 0.00
September 18
 24.2 11.8 0.00
September 19
 20.6 8.8 0.00
September 20
 23.0 9.7 0.00
September 21
 23.2 18.4 1.12
September 22
 20.2 14.2 4.81
September 23
 19.1 13.6 1.30
September 24
 16.2 7.5 0.25
September 25
 20.4 7.2 0.20
September 26
 19.8 4.8 0.00
September 27
 23.6 13.7 0.33
September 28
 16.7 6.6 0.00
September 29
 20.3 5.4 0.00
September 30
 15.2 6.1 0.00
October 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
October 1
 17.4 5.9 0.00
October 2
 23.1 9.4 0.00
October 3
 18.8 14.8 2.09
October 4
 15.7 14.3 0.14
October 5
 18.6 12.5 0.00
October 6
 19.8 10.5 0.00
October 7
 20.5 13.1 0.00
October 8
 21.4 13.4 0.00
October 9
 18.7 16.0 0.18
October 10
 20.6 16.4 0.02
October 11
 22.6 15.8 0.00
October 12
 22.8 13.9 0.00
October 13
 20.0 14.9 0.00
October 14
 21.5 12.7 0.02
October 15
 20.6 14.7 1.13
October 16
 16.1 9.4 0.20
October 17
 14.6 7.4 0.02
October 18
 13.0 3.4 0.02
October 19
 21.4 1.2 0.00
October 20
 18.8 8.8 0.00
October 21
 16.7 9.1 0.06
October 22
 9.0 3.5 0.00
October 23
 9.9 2.3 0.00
October 24
 12.3 1.4 0.00
October 25
 9.4 5.1 1.67
October 26
 9.4 5.0 0.47
October 27
 16.2 3.7 0.00
October 28
 11.8 2.3 0.00
October 29
 14.0 6.7 0.66
October 30
 10.3 7.2 0.30
October 31
 15.6 7.8 0.00
November 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
November 1
 11.3 -1.1 0.00
November 2
 8.8 -2.7 0.05
November 3
 6.9 -3.8 0.00
November 4
 7.9 -3.7 0.00
November 5
 9.1 -4.5 0.00
November 6
 10.6 -3.7 0.00
November 7
 14.7 -2.2 0.00
November 8
 15.9 -0.4 0.00
November 9
 12.3 2.2 0.50
November 10
 13.0 -0.8 0.00
November 11
 12.5 1.3 0.02
November 12
 12.6 6.2 0.41
November 13
 7.2 3.2 0.02
November 14
 5.6 0.2 0.99
November 15
 5.6 -2.9 0.12
November 16
 6.8 -3.9 n/a
November 17
 n/a n/a n/a
November 18
 13.8 1.5 n/a
November 19
 5.7 -3.8 0.05
November 20
 5.7 -3.6 0.04
November 21
 7.5 -1.9 0.62
November 22
 3.9 -3.0 0.00
November 23
 2.1 -6.8 0.00
November 24
 7.9 -6.9 0.00
November 25
 6.6 4.0 0.89
November 26
 4.0 -3.3 0.00
November 27
 1.3 -6.9 0.00
November 28
 -1.0 -7.7 0.00
November 29
 -0.5 -10.2 0.35
November 30
 2.6 -5.5 0.22
December 2021 Oshawa Weather
Day High (°C) Low (°C) Precip. (cm)
December 1
 5.2 -0.4 0.00
December 2
 10.1 0.0 0.14
December 3
 1.6 -2.3 0.00
December 4
 5.6 -2.7 0.00
December 5
 3.3 -5.3 1.46
December 6
 8.9 -1.3 0.43
December 7
 -1.3 -7.8 0.00
December 8
 -2.3 -10.4 0.00
December 9
 1.1 -9.4 0.05
December 10
 5.6 -2.4 0.07
December 11
 15.0 1.1 1.98
December 12
 6.5 0.0 0.00
December 13
 9.6 2.4 0.00
December 14
 6.5 -3.5 0.00
December 15
 8.0 1.2 0.09
December 16
 13.8 4.7 0.00
December 17
 5.1 0.1 0.00
December 18
 0.1 -5.2 0.00
December 19
 -3.9 -13.0 0.00
December 20
 3.2 -12.6 0.33
December 21
 4.1 -1.8 0.00
December 22
 4.2 -5.6 0.00
December 23
 -0.5 -8.2 0.00
December 24
 1.5 -1.4 0.31
December 25
 4.7 0.7 0.83
December 26
 2.6 -7.1 0.00
December 27
 -1.8 -7.1 0.00
December 28
 1.9 -2.1 0.00
December 29
 1.5 -0.8 0.12
December 30
 2.4 -1.6 0.00
December 31
 4.8 0.3 0.00
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