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Thunder Bay Weather in 2003

Historical record of Thunder Bay, Ontario weather for the year 2003 based on NOAA data.
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Year:
2003 Thunder Bay Weather Extremes
Highest temperature 32.9 °C August 15
Lowest temperature -34.1 °C February 25
Highest daily low 18.6 °C August 20
Lowest daily high -19.9 °C January 22
Most daily precipitation 11.7 cm April 20
Most daily snow 10.5 cm October 30
Total annual precipitation 54.6 cm -
What was the hottest temperature in Thunder Bay in 2003?
The highest temperature recorded in Thunder Bay, Ontario in 2003 was 32.9 °C which happened on August 15.
Highest Temperatures: All-Time By Year
Highest Temperatures in Thunder Bay in 2003
Rank Temperature Date
1 32.9 °C Aug 15
2 32.3 °C Aug 19
3 31.6 °C Aug 24
4 30.9 °C Aug 18
4 30.9 °C Aug 9
6 30.6 °C Aug 20
7 30.3 °C Aug 5
8 30.0 °C Aug 10
9 29.8 °C Aug 6
10 29.6 °C Aug 14
10 29.6 °C Jul 26
What was the coldest temperature in Thunder Bay in 2003?
The lowest temperature recorded in Thunder Bay, Ontario in 2003 was -34.1 °C which happened on Feb 25.
Lowest Temperatures: All-Time By Year
Lowest Temperatures in Thunder Bay in 2003
Rank Temperature Date
1 -34.1 °C February 25
2 -33.4 °C March 3
3 -33.3 °C February 15
4 -33.0 °C February 13
5 -32.3 °C March 5
6 -32.0 °C February 23
7 -31.9 °C March 2
8 -31.1 °C February 6
9 -30.9 °C March 6
9 -30.9 °C February 12
January 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
January 1
 -7.6 -19.3 0.00 0.0
January 2
 -3.0 -9.1 0.05 0.5
January 3
 -4.0 -9.0 0.00 0.0
January 4
 0.7 -10.0 0.00 0.0
January 5
 -1.0 -11.4 n/a n/a
January 6
 -2.7 -15.7 0.00 0.0
January 7
 7.6 -2.8 0.00 0.0
January 8
 7.1 -3.2 0.00 0.0
January 9
 0.4 -15.4 0.00 0.0
January 10
 -11.6 -16.0 n/a n/a
January 11
 -8.1 -16.4 0.00 0.0
January 12
 -12.2 -18.5 0.05 0.5
January 13
 -11.8 -22.2 0.00 0.0
January 14
 -15.0 -21.5 0.00 0.0
January 15
 -9.3 -21.2 0.00 0.0
January 16
 -12.6 -19.3 0.00 0.0
January 17
 -3.4 -21.4 0.00 0.0
January 18
 -7.7 -20.2 0.05 0.5
January 19
 -14.0 -21.0 n/a n/a
January 20
 -17.8 -24.2 0.00 0.0
January 21
 -19.4 -28.8 0.00 0.0
January 22
 -19.9 -29.6 n/a n/a
January 23
 -14.2 -23.2 0.00 0.0
January 24
 -11.8 -21.7 0.05 0.5
January 25
 -13.6 -24.0 0.00 0.0
January 26
 -17.6 -27.3 0.00 0.0
January 27
 -9.4 -29.7 0.45 4.5
January 28
 -9.7 -26.7 0.00 0.0
January 29
 -11.6 -26.7 0.00 0.0
January 30
 -4.2 -19.3 0.05 0.5
January 31
 0.3 -8.7 0.00 0.0
February 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
February 1
 -1.1 -6.8 0.20 2.0
February 2
 -1.4 -4.1 0.05 0.5
February 3
 -2.4 -11.2 0.60 6.0
February 4
 -11.1 -22.0 0.00 0.0
February 5
 -10.2 -28.8 0.00 0.0
February 6
 -15.7 -31.1 0.00 0.0
February 7
 -5.6 -29.5 0.05 0.5
February 8
 -9.0 -22.8 0.00 0.0
February 9
 -12.2 -29.8 0.00 0.0
February 10
 -18.2 -30.6 0.00 0.0
February 11
 -14.5 -24.1 0.05 0.5
February 12
 -18.0 -30.9 0.00 0.0
February 13
 -16.2 -33.0 0.00 0.0
February 14
 -13.5 -29.7 0.00 0.0
February 15
 -16.2 -33.3 0.00 0.0
February 16
 -7.3 -29.9 n/a n/a
February 17
 -1.7 -21.2 0.00 0.0
February 18
 -0.8 -19.0 n/a n/a
February 19
 -2.5 -17.7 0.00 0.0
February 20
 1.1 -17.9 n/a n/a
February 21
 -11.9 -21.4 0.05 0.5
February 22
 -12.9 -29.5 0.00 0.0
February 23
 -14.1 -32.0 0.00 0.0
February 24
 -16.2 -30.7 0.00 0.0
February 25
 -11.7 -34.1 0.00 0.0
February 26
 -5.0 -28.6 0.00 0.0
February 27
 1.3 -12.9 0.00 0.0
February 28
 -2.2 -18.3 0.00 0.0
March 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
March 1
 0.3 -20.7 0.05 0.5
March 2
 -18.6 -31.9 0.00 0.0
March 3
 -14.4 -33.4 0.05 0.5
March 4
 -12.1 -24.3 0.05 0.5
March 5
 -11.8 -32.3 0.00 0.0
March 6
 -7.9 -30.9 0.00 0.0
March 7
 -7.7 -18.2 0.10 1.0
March 8
 -14.6 -21.5 0.00 0.0
March 9
 -14.8 -23.2 0.00 0.0
March 10
 -6.5 -20.7 0.00 0.0
March 11
 -7.3 -14.9 0.05 0.5
March 12
 -6.4 -23.3 0.00 0.0
March 13
 -5.5 -26.2 0.00 0.0
March 14
 0.4 -6.3 0.00 0.0
March 15
 2.2 -8.6 0.00 0.0
March 16
 11.4 -5.5 0.00 0.0
March 17
 3.8 -5.5 0.00 0.0
March 18
 0.4 -8.3 0.00 0.0
March 19
 4.6 -10.3 0.00 0.0
March 20
 2.1 -4.3 0.50 0.0
March 21
 3.8 0.1 0.20 0.0
March 22
 7.8 -1.5 0.05 0.0
March 23
 8.1 -4.1 0.00 0.0
March 24
 15.4 -1.2 0.10 0.0
March 25
 5.2 0.1 0.00 0.0
March 26
 3.4 -7.9 0.00 0.0
March 27
 2.4 -8.1 0.00 0.0
March 28
 1.0 -5.9 0.40 4.0
March 29
 2.6 -6.5 0.00 0.0
March 30
 -1.0 -8.9 0.00 0.0
March 31
 1.8 -10.1 0.10 1.0
April 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
April 1
 7.5 -3.0 0.00 0.0
April 2
 -1.7 -7.2 0.00 0.0
April 3
 -4.1 -9.9 0.40 4.0
April 4
 -5.1 -12.1 0.15 1.5
April 5
 -3.4 -13.5 0.00 0.0
April 6
 0.4 -17.5 0.00 0.0
April 7
 1.1 -11.6 0.00 0.0
April 8
 5.9 -13.6 0.00 0.0
April 9
 15.4 -6.4 0.00 0.0
April 10
 21.5 -4.4 0.00 0.0
April 11
 16.0 0.2 0.00 0.0
April 12
 6.7 -2.1 0.00 0.0
April 13
 7.5 -0.9 0.00 0.0
April 14
 21.8 0.1 0.20 0.0
April 15
 10.8 0.4 0.20 0.0
April 16
 1.4 -2.8 0.00 0.0
April 17
 -1.4 -3.3 n/a n/a
April 18
 7.1 -9.0 0.00 0.0
April 19
 5.3 -0.5 2.30 0.0
April 20
 6.6 2.1 11.70 0.0
April 21
 11.3 -0.2 n/a 0.0
April 22
 10.9 -4.7 0.00 0.0
April 23
 14.1 -6.0 0.00 0.0
April 24
 13.4 -0.4 n/a 0.0
April 25
 9.4 -4.1 0.00 0.0
April 26
 14.1 -7.6 0.00 0.0
April 27
 5.6 -0.4 0.10 0.0
April 28
 12.1 -3.9 0.10 0.0
April 29
 11.7 -5.8 0.00 0.0
April 30
 14.5 -7.2 0.00 0.0
May 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
May 1
 10.9 -5.4 0.00 0.0
May 2
 11.6 -7.2 0.00 0.0
May 3
 16.8 -6.7 0.00 0.0
May 4
 14.7 -5.3 0.00 0.0
May 5
 19.2 2.2 0.05 0.0
May 6
 19.8 -2.0 0.00 0.0
May 7
 17.5 -1.8 0.00 0.0
May 8
 13.3 -1.7 0.00 0.0
May 9
 9.0 4.5 1.15 0.0
May 10
 8.4 4.2 0.05 0.0
May 11
 9.6 4.1 0.40 0.0
May 12
 18.9 0.9 0.05 0.0
May 13
 24.6 -0.4 0.00 0.0
May 14
 19.9 0.9 0.00 0.0
May 15
 20.7 -0.4 0.00 0.0
May 16
 19.6 0.4 0.00 0.0
May 17
 17.9 4.5 0.00 0.0
May 18
 16.3 5.7 0.00 0.0
May 19
 15.8 7.0 2.05 0.0
May 20
 14.2 0.8 0.10 0.0
May 21
 19.0 -2.2 0.00 0.0
May 22
 17.0 -1.0 0.00 0.0
May 23
 18.9 -2.8 0.00 0.0
May 24
 23.4 -0.5 0.00 0.0
May 25
 24.2 2.2 0.00 0.0
May 26
 24.9 1.0 0.00 0.0
May 27
 28.4 3.0 0.05 0.0
May 28
 18.4 5.4 0.25 0.0
May 29
 26.5 1.1 0.05 0.0
May 30
 12.2 2.9 0.90 0.0
May 31
 18.5 -1.4 0.05 0.0
June 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
June 1
 22.4 0.2 0.00 0.0
June 2
 21.2 1.1 0.00 0.0
June 3
 24.3 1.1 0.00 0.0
June 4
 23.3 1.9 0.00 0.0
June 5
 26.6 2.6 0.00 0.0
June 6
 16.9 5.5 0.00 0.0
June 7
 18.1 4.7 0.00 0.0
June 8
 18.7 2.2 0.05 0.0
June 9
 17.7 6.7 0.15 0.0
June 10
 16.7 3.7 0.00 0.0
June 11
 23.0 1.7 0.00 0.0
June 12
 17.4 5.5 0.00 0.0
June 13
 25.6 10.3 0.15 0.0
June 14
 25.3 8.3 0.00 0.0
June 15
 25.7 5.4 0.00 0.0
June 16
 26.9 4.4 0.00 0.0
June 17
 23.5 11.4 1.50 0.0
June 18
 23.2 4.9 0.00 0.0
June 19
 21.1 1.5 0.00 0.0
June 20
 26.4 0.3 0.00 0.0
June 21
 26.1 4.4 0.00 0.0
June 22
 27.8 4.8 0.00 0.0
June 23
 21.9 12.3 0.75 0.0
June 24
 19.5 12.3 0.15 0.0
June 25
 23.4 12.0 0.75 0.0
June 26
 17.8 10.8 0.05 0.0
June 27
 15.9 3.8 0.00 0.0
June 28
 15.3 0.5 0.00 0.0
June 29
 22.0 6.4 0.00 0.0
June 30
 28.3 7.4 0.00 0.0
July 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
July 1
 26.4 9.4 0.00 0.0
July 2
 26.6 10.0 1.80 0.0
July 3
 23.7 12.7 0.05 0.0
July 4
 27.1 12.5 0.00 0.0
July 5
 26.6 10.7 0.00 0.0
July 6
 20.5 9.8 0.80 0.0
July 7
 25.4 14.1 1.60 0.0
July 8
 20.9 10.2 0.00 0.0
July 9
 18.3 5.4 0.20 0.0
July 10
 15.0 11.7 1.30 0.0
July 11
 22.2 12.6 0.10 0.0
July 12
 25.5 11.3 0.10 0.0
July 13
 27.5 8.5 0.05 0.0
July 14
 27.5 14.3 1.70 0.0
July 15
 23.9 10.2 0.05 0.0
July 16
 28.6 6.7 0.00 0.0
July 17
 24.9 6.6 0.00 0.0
July 18
 27.4 5.8 0.00 0.0
July 19
 28.5 10.5 0.00 0.0
July 20
 22.2 12.7 0.70 0.0
July 21
 19.7 12.8 0.10 0.0
July 22
 23.3 9.4 0.00 0.0
July 23
 25.6 7.3 0.00 0.0
July 24
 27.0 10.4 0.00 0.0
July 25
 28.2 12.6 0.00 0.0
July 26
 29.6 14.9 0.05 0.0
July 27
 25.8 10.2 0.00 0.0
July 28
 27.5 8.6 0.40 0.0
July 29
 24.3 13.9 0.00 0.0
July 30
 18.6 14.2 0.70 0.0
July 31
 19.4 13.4 0.15 0.0
August 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
August 1
 21.5 14.0 0.00 0.0
August 2
 20.7 10.6 0.00 0.0
August 3
 24.2 11.1 0.00 0.0
August 4
 28.0 12.2 0.00 0.0
August 5
 30.3 12.8 0.00 0.0
August 6
 29.8 18.0 0.00 0.0
August 7
 27.1 13.4 0.00 0.0
August 8
 25.7 10.7 0.00 0.0
August 9
 30.9 10.8 0.25 0.0
August 10
 30.0 16.9 0.10 0.0
August 11
 23.6 6.6 0.00 0.0
August 12
 25.4 3.7 0.00 0.0
August 13
 28.4 6.6 0.00 0.0
August 14
 29.6 10.7 0.05 0.0
August 15
 32.9 16.5 0.00 0.0
August 16
 26.0 14.1 0.00 0.0
August 17
 21.7 9.4 0.00 0.0
August 18
 30.9 10.9 0.00 0.0
August 19
 32.3 17.3 0.05 0.0
August 20
 30.6 18.6 1.10 0.0
August 21
 25.3 14.1 0.00 0.0
August 22
 26.7 9.9 0.00 0.0
August 23
 20.3 6.6 0.45 0.0
August 24
 31.6 15.8 0.15 0.0
August 25
 26.3 12.4 0.00 0.0
August 26
 27.8 9.9 0.65 0.0
August 27
 19.9 5.4 0.00 0.0
August 28
 18.0 10.0 2.95 0.0
August 29
 19.7 9.9 0.05 0.0
August 30
 22.1 5.3 0.05 0.0
August 31
 26.2 5.1 0.00 0.0
September 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
September 1
 20.3 8.1 0.05 0.0
September 2
 22.9 11.1 0.50 0.0
September 3
 19.0 9.9 0.10 0.0
September 4
 20.1 5.2 0.05 0.0
September 5
 23.2 2.5 0.05 0.0
September 6
 23.0 9.1 0.00 0.0
September 7
 19.0 7.4 0.00 0.0
September 8
 19.7 7.1 0.00 0.0
September 9
 22.9 13.1 0.00 0.0
September 10
 25.8 11.3 0.00 0.0
September 11
 26.9 18.3 0.00 0.0
September 12
 22.2 11.5 0.20 0.0
September 13
 21.1 13.1 0.05 0.0
September 14
 18.6 6.5 0.00 0.0
September 15
 20.9 7.9 0.00 0.0
September 16
 23.4 6.7 0.05 0.0
September 17
 25.3 8.3 0.05 0.0
September 18
 23.9 15.1 0.00 0.0
September 19
 18.1 7.6 0.40 0.0
September 20
 16.3 2.6 0.05 0.0
September 21
 18.7 7.2 0.05 0.0
September 22
 14.7 10.2 0.45 0.0
September 23
 16.2 3.0 0.00 0.0
September 24
 13.9 4.0 0.50 0.0
September 25
 11.9 3.4 0.00 0.0
September 26
 11.8 4.3 0.15 0.0
September 27
 10.6 5.4 0.00 0.0
September 28
 9.3 -3.3 0.00 0.0
September 29
 7.9 -5.5 0.15 0.0
September 30
 8.7 -3.6 0.40 4.0
October 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
October 1
 7.6 -5.6 0.00 0.0
October 2
 7.8 -8.1 0.00 0.0
October 3
 7.5 0.6 0.15 0.0
October 4
 7.6 -5.6 0.00 0.0
October 5
 10.7 -4.8 0.00 0.0
October 6
 14.1 -6.8 0.00 0.0
October 7
 21.8 -1.7 0.00 0.0
October 8
 19.5 0.9 0.00 0.0
October 9
 23.2 4.5 0.00 0.0
October 10
 23.4 8.4 0.00 0.0
October 11
 21.5 9.2 1.90 0.0
October 12
 15.1 5.2 0.10 0.0
October 13
 16.4 4.7 0.10 0.0
October 14
 12.1 -0.4 0.00 0.0
October 15
 7.8 -2.8 0.00 0.0
October 16
 9.1 -6.6 0.00 0.0
October 17
 5.8 -7.6 0.00 0.0
October 18
 12.7 2.4 0.05 0.0
October 19
 7.9 0.5 0.00 0.0
October 20
 9.5 6.6 0.00 0.0
October 21
 9.8 -2.7 0.05 0.0
October 22
 7.8 -2.7 0.00 0.0
October 23
 6.4 -2.1 0.00 0.0
October 24
 5.2 -1.9 0.55 0.0
October 25
 7.1 -2.2 0.05 0.0
October 26
 2.3 -6.8 0.00 0.0
October 27
 3.4 -5.0 0.20 2.0
October 28
 3.6 -0.3 0.70 7.0
October 29
 3.0 -0.2 0.05 0.5
October 30
 3.0 0.6 1.05 10.5
October 31
 4.6 -1.0 0.00 0.0
November 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
November 1
 0.1 -4.1 0.00 0.0
November 2
 2.8 -3.2 0.00 0.0
November 3
 0.7 -7.2 0.00 0.0
November 4
 -1.3 -4.4 0.30 3.0
November 5
 -1.4 -7.0 0.00 0.0
November 6
 -1.9 -13.2 0.00 0.0
November 7
 -7.5 -13.0 0.00 0.0
November 8
 -4.1 -16.9 0.00 0.0
November 9
 5.5 -17.1 0.05 0.0
November 10
 4.7 0.0 0.00 0.0
November 11
 9.8 -5.4 0.00 0.0
November 12
 0.0 -5.9 0.00 0.0
November 13
 -1.9 -8.8 0.00 0.0
November 14
 6.8 -5.9 0.00 0.0
November 15
 5.0 -6.1 0.00 0.0
November 16
 5.3 -0.5 0.00 0.0
November 17
 7.3 3.0 0.05 0.0
November 18
 7.7 1.9 0.30 0.0
November 19
 4.4 0.7 0.00 0.0
November 20
 10.2 -2.8 0.00 0.0
November 21
 1.1 -7.4 0.00 0.0
November 22
 -3.3 -9.3 0.00 0.0
November 23
 -5.1 -9.2 0.80 8.0
November 24
 -7.8 -12.1 0.00 0.0
November 25
 -1.5 -19.8 0.05 0.5
November 26
 -1.8 -14.2 0.00 0.0
November 27
 2.1 -9.8 0.20 1.0
November 28
 0.4 -6.4 0.05 0.5
November 29
 -0.9 -6.9 0.15 1.5
November 30
 0.5 -9.8 0.00 0.0
December 2003 Thunder Bay Weather
Day High (°C) Low (°C) Precip. (cm) Snow (cm)
December 1
 -3.6 -8.3 0.00 n/a
December 2
 -3.2 -18.1 0.00 n/a
December 3
 2.4 -19.6 0.00 n/a
December 4
 2.6 -12.7 0.00 n/a
December 5
 1.4 -13.2 0.00 n/a
December 6
 -3.3 -20.9 0.00 n/a
December 7
 2.4 -3.4 0.00 n/a
December 8
 3.3 0.6 0.00 n/a
December 9
 1.5 -8.5 0.00 n/a
December 10
 -8.1 -14.7 0.00 n/a
December 11
 -10.8 -20.2 0.00 n/a
December 12
 -12.2 -23.4 0.00 n/a
December 13
 -1.1 -23.0 0.05 n/a
December 14
 -0.4 -2.6 0.00 n/a
December 15
 0.2 -2.8 0.05 n/a
December 16
 0.3 -10.6 1.00 n/a
December 17
 -5.3 -13.5 0.00 n/a
December 18
 -5.1 -17.5 0.00 n/a
December 19
 -6.6 -15.9 0.05 n/a
December 20
 -3.5 -16.9 0.00 n/a
December 21
 -0.3 -14.0 0.00 n/a
December 22
 1.6 -4.8 0.00 n/a
December 23
 -4.8 -20.0 0.00 n/a
December 24
 -6.8 -21.1 0.00 n/a
December 25
 -0.8 -19.3 0.00 n/a
December 26
 -0.3 -18.2 0.00 n/a
December 27
 5.7 -10.1 0.00 n/a
December 28
 7.3 -0.8 0.00 n/a
December 29
 0.4 -5.0 0.00 n/a
December 30
 -2.2 -8.8 0.10 n/a
December 31
 -0.7 -17.6 0.30 n/a
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2004–2024 Thunder Bay CS location
1941–2003 Thunder Bay A location
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