Thunder Bay Weather in 1991

Historical record of Thunder Bay, Ontario weather for the year 1991 based on NOAA data.

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1991 Thunder Bay Weather Extremes
Highest temperature	34.6 °C	August 13
Lowest temperature	-35.5 °C	January 10
Highest daily low	18.2 °C	August 26
Lowest daily high	-21.1 °C	January 24
Most daily precipitation	6.0 cm	November 1
Most daily snow	15.2 cm	January 8
Total annual precipitation	72.4 cm	-
Total annual snow	213.0 cm	-

What was the hottest temperature in Thunder Bay in 1991?

The highest temperature recorded in Thunder Bay, Ontario in 1991 was 34.6 °C which happened on August 13.

Highest Temperatures: All-Time By Year

Highest Temperatures in Thunder Bay in 1991

Rank	Temperature	Date
1	34.6 °C	Aug 13
2	33.9 °C	Aug 29
2	33.9 °C	Aug 14
4	33.1 °C	Aug 12
5	33.0 °C	Jul 17
5	33.0 °C	Jul 16
7	31.9 °C	May 15
8	31.4 °C	Aug 28
9	30.5 °C	Aug 10
10	30.3 °C	Aug 25
10	30.3 °C	May 11

What was the coldest temperature in Thunder Bay in 1991?

The lowest temperature recorded in Thunder Bay, Ontario in 1991 was -35.5 °C which happened on Jan 10.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Thunder Bay in 1991

Rank	Temperature	Date
1	-35.5 °C	January 10
2	-35.1 °C	January 7
3	-34.8 °C	January 29
4	-33.1 °C	January 6
5	-32.1 °C	January 30
6	-31.7 °C	January 9
7	-31.6 °C	December 2
8	-31.3 °C	January 21
9	-31.0 °C	January 22
10	-30.3 °C	February 1

January 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
January 1	-11.2	-28.3	0.08	1.4
January 2	-18.8	-29.6	0.00	0.0
January 3	-17.1	-27.8	0.00	0.0
January 4	-12.0	-24.8	0.00	0.0
January 5	-12.8	-27.2	0.00	0.0
January 6	-18.3	-33.1	0.00	0.0
January 7	-19.9	-35.1	0.08	2.4
January 8	-4.0	-20.0	0.84	15.2
January 9	-14.6	-31.7	0.00	0.0
January 10	-6.1	-35.5	0.02	0.4
January 11	-3.7	-6.6	0.26	4.2
January 12	-6.2	-21.3	0.00	0.0
January 13	-2.3	-21.3	0.46	5.8
January 14	-4.9	-13.0	0.18	3.4
January 15	-7.7	-13.0	0.04	0.6
January 16	-1.1	-7.8	0.20	3.2
January 17	-1.8	-9.7	0.00	0.0
January 18	-4.7	-10.6	0.00	0.4
January 19	3.8	-15.8	0.06	0.6
January 20	-15.7	-24.8	0.00	0.0
January 21	-15.8	-31.3	0.00	0.0
January 22	-5.8	-31.0	0.26	4.2
January 23	-9.1	-23.5	0.02	0.2
January 24	-21.1	-29.7	0.00	0.0
January 25	-11.9	-26.8	0.00	0.0
January 26	-7.9	-18.8	0.02	0.4
January 27	-8.6	-21.2	0.08	1.2
January 28	-18.9	-27.9	0.00	0.0
January 29	-18.5	-34.8	0.00	0.0
January 30	-13.4	-32.1	0.04	0.4
January 31	-13.6	-28.4	0.00	0.0

February 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
February 1	-5.4	-30.3	0.04	0.6
February 2	3.7	-18.5	0.00	0.0
February 3	6.1	-15.1	0.00	0.0
February 4	8.0	-9.9	0.00	0.0
February 5	3.3	-0.8	0.02	0.2
February 6	6.1	-0.4	0.00	0.0
February 7	9.5	-5.7	0.00	0.0
February 8	9.6	-0.3	0.00	0.0
February 9	-0.3	-8.3	0.00	0.0
February 10	-7.0	-16.9	0.00	0.0
February 11	-11.0	-20.9	0.00	0.0
February 12	-4.6	-16.7	0.00	0.0
February 13	-8.2	-19.9	0.00	0.0
February 14	-11.1	-21.6	0.00	0.0
February 15	-12.1	-25.3	0.00	0.0
February 16	-5.4	-18.5	0.00	0.0
February 17	-3.6	-22.8	0.00	0.0
February 18	-2.0	-16.8	0.34	3.4
February 19	-2.1	-14.1	0.36	4.2
February 20	-2.8	-16.2	0.18	2.4
February 21	-0.3	-4.6	0.22	2.2
February 22	-4.5	-26.0	0.00	0.0
February 23	-12.6	-27.6	0.22	1.2
February 24	-9.1	-22.3	0.00	0.0
February 25	-7.5	-25.9	0.00	0.0
February 26	-6.2	-25.3	0.00	0.0
February 27	-5.2	-21.8	0.02	0.4
February 28	-3.8	-23.3	0.00	0.0

March 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
March 1	-0.1	-9.5	0.08	1.2
March 2	-9.4	-22.2	0.00	0.0
March 3	-11.4	-24.0	0.00	0.0
March 4	-4.1	-20.5	0.02	0.2
March 5	1.1	-13.4	0.88	0.0
March 6	1.9	-14.2	0.00	0.0
March 7	-6.6	-21.4	0.00	0.0
March 8	-5.3	-20.0	0.22	2.8
March 9	1.3	-11.2	0.28	3.6
March 10	-1.3	-17.5	0.00	0.0
March 11	-2.2	-13.8	0.00	0.0
March 12	-1.5	-14.2	0.00	0.0
March 13	-0.2	-16.4	0.00	0.0
March 14	1.5	-15.7	0.00	0.0
March 15	7.9	-14.5	0.00	0.0
March 16	2.0	-12.5	0.00	0.0
March 17	3.2	-8.4	0.00	0.0
March 18	8.0	-0.4	0.00	0.0
March 19	8.8	-2.0	0.00	0.0
March 20	5.1	-6.6	0.00	0.0
March 21	5.3	-0.9	0.00	0.0
March 22	1.5	-4.0	0.26	2.2
March 23	1.4	-2.3	2.58	11.8
March 24	6.7	-5.0	0.00	0.0
March 25	8.8	-7.6	0.00	0.0
March 26	2.6	0.7	0.78	0.0
March 27	4.7	-7.6	0.08	0.8
March 28	-4.8	-9.8	0.00	0.0
March 29	-2.1	-12.5	0.00	0.0
March 30	1.3	-15.1	0.02	0.4
March 31	3.6	-1.9	0.06	0.6

April 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)
April 1	5.5	-7.0	0.00
April 2	6.7	-6.7	0.00
April 3	16.2	1.1	0.00
April 4	16.0	-0.6	0.10
April 5	22.3	-1.6	0.00
April 6	10.8	-0.9	0.00
April 7	19.3	0.4	0.00
April 8	6.9	1.2	0.00
April 9	6.2	-0.8	0.00
April 10	8.5	-5.1	0.00
April 11	5.0	-9.2	0.00
April 12	6.2	-7.1	0.00
April 13	8.6	-3.3	0.00
April 14	6.8	1.2	1.16
April 15	6.2	1.5	0.14
April 16	7.5	1.8	0.08
April 17	15.0	1.6	0.00
April 18	14.1	0.5	0.00
April 19	5.7	-5.5	0.00
April 20	7.1	-8.1	0.00
April 21	9.6	-8.3	0.00
April 22	13.7	-8.5	0.00
April 23	16.3	-4.1	0.00
April 24	11.4	-3.9	0.00
April 25	23.8	-1.4	0.00
April 26	18.4	-1.1	0.00
April 27	13.3	5.1	0.74
April 28	11.4	4.7	0.00
April 29	8.4	5.8	4.50
April 30	12.0	3.9	0.16

May 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
May 1	4.3	0.2	0.06	0.6
May 2	9.1	0.2	0.00	0.0
May 3	7.5	-3.7	0.00	0.0
May 4	3.9	0.7	0.00	0.0
May 5	8.8	3.6	0.36	0.0
May 6	5.4	1.9	1.46	0.0
May 7	9.4	-2.0	0.04	0.4
May 8	13.4	-3.5	0.00	0.0
May 9	11.4	-1.6	0.00	0.0
May 10	18.1	1.7	0.00	0.0
May 11	30.3	3.9	0.00	0.0
May 12	20.1	10.6	0.00	0.0
May 13	19.2	8.8	0.04	0.0
May 14	19.3	8.1	0.00	0.0
May 15	31.9	6.4	0.00	0.0
May 16	17.7	8.1	0.00	0.0
May 17	12.6	0.1	0.00	0.0
May 18	11.3	-3.1	0.00	0.0
May 19	14.8	-4.4	0.00	0.0
May 20	25.2	0.0	0.00	0.0
May 21	28.0	7.1	0.00	0.0
May 22	14.8	9.3	0.00	0.0
May 23	27.9	9.1	0.20	0.0
May 24	25.9	12.9	0.00	0.0
May 25	21.0	9.9	0.00	0.0
May 26	16.2	11.1	3.80	0.0
May 27	27.0	12.8	0.00	0.0
May 28	20.3	10.5	0.00	0.0
May 29	14.1	9.9	0.58	0.0
May 30	23.5	9.4	0.00	0.0
May 31	22.5	10.8	0.00	0.0

June 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)
June 1	21.9	7.1	0.00
June 2	20.9	11.4	0.00
June 3	20.9	7.3	0.00
June 4	21.1	4.3	0.00
June 5	22.6	5.3	0.00
June 6	23.8	5.2	0.00
June 7	29.5	7.4	0.00
June 8	21.8	9.5	0.00
June 9	25.7	10.3	0.50
June 10	25.8	12.1	0.04
June 11	24.4	8.4	0.00
June 12	14.2	2.9	0.00
June 13	17.9	7.4	0.02
June 14	20.6	11.2	0.50
June 15	21.8	13.1	0.53
June 16	27.5	12.1	0.00
June 17	28.2	7.8	0.00
June 18	27.3	11.9	0.06
June 19	27.1	10.1	0.00
June 20	19.8	11.4	0.14
June 21	19.5	6.2	0.00
June 22	22.3	3.6	0.00
June 23	24.1	6.4	0.00
June 24	25.7	6.1	0.00
June 25	28.6	11.6	0.00
June 26	21.0	14.5	2.54
June 27	29.3	14.6	0.94
June 28	22.5	12.2	0.84
June 29	14.9	11.7	1.74
June 30	15.7	12.0	0.00

July 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)
July 1	12.9	8.6	1.78
July 2	12.9	8.7	0.50
July 3	16.2	10.2	0.35
July 4	17.4	13.1	0.99
July 5	24.0	13.1	0.42
July 6	27.2	10.7	0.00
July 7	26.2	14.0	0.20
July 8	23.6	9.6	0.00
July 9	24.6	8.1	0.52
July 10	23.1	10.1	0.00
July 11	26.5	9.2	0.00
July 12	21.8	13.8	0.02
July 13	24.6	10.2	0.00
July 14	27.8	10.5	0.00
July 15	27.6	10.2	0.00
July 16	33.0	16.5	0.88
July 17	33.0	15.0	0.00
July 18	29.3	15.5	0.82
July 19	28.8	15.3	0.00
July 20	23.1	12.1	0.04
July 21	24.6	11.0	0.00
July 22	26.2	14.7	0.04
July 23	26.3	13.7	0.30
July 24	19.2	11.1	0.00
July 25	18.1	9.0	0.00
July 26	20.4	10.3	0.00
July 27	20.8	9.2	0.38
July 28	18.0	6.8	0.00
July 29	23.0	5.7	0.00
July 30	25.0	8.5	0.00
July 31	27.1	12.0	0.00

August 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)
August 1	24.9	9.4	0.00
August 2	21.2	8.6	0.00
August 3	21.7	12.2	0.00
August 4	22.5	6.5	0.00
August 5	24.6	4.5	0.00
August 6	23.4	7.5	0.00
August 7	24.5	6.5	0.00
August 8	27.3	6.6	0.00
August 9	27.4	9.4	0.00
August 10	30.5	10.6	0.00
August 11	28.3	10.4	0.00
August 12	33.1	11.1	0.00
August 13	34.6	14.7	0.00
August 14	33.9	16.1	0.00
August 15	29.8	15.7	0.80
August 16	19.2	15.4	0.72
August 17	24.0	13.8	0.04
August 18	18.2	6.2	0.00
August 19	21.0	3.6	0.00
August 20	23.9	3.2	0.00
August 21	25.0	7.4	0.18
August 22	22.7	11.8	0.00
August 23	17.2	12.4	0.02
August 24	22.8	14.2	0.00
August 25	30.3	16.9	0.00
August 26	28.9	18.2	1.58
August 27	23.4	16.8	0.00
August 28	31.4	15.8	0.00
August 29	33.9	17.0	0.00
August 30	29.3	12.0	0.00
August 31	15.6	4.3	0.00

September 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)
September 1	19.8	1.7	0.00
September 2	24.9	7.4	0.22
September 3	22.8	9.1	0.36
September 4	20.3	6.7	0.00
September 5	16.9	6.0	0.21
September 6	19.8	2.3	0.00
September 7	21.6	4.3	0.00
September 8	18.1	14.3	1.04
September 9	22.6	15.7	0.14
September 10	17.5	4.9	0.00
September 11	17.9	2.8	0.00
September 12	15.7	8.0	0.16
September 13	22.6	10.6	0.00
September 14	16.0	9.7	2.24
September 15	25.9	11.3	0.00
September 16	18.9	7.2	0.94
September 17	13.1	5.9	0.36
September 18	10.8	-1.1	1.06
September 19	6.8	-3.0	0.00
September 20	13.4	-0.2	0.00
September 21	18.3	-1.9	0.00
September 22	14.4	5.0	0.00
September 23	12.4	2.6	0.00
September 24	15.2	0.5	0.02
September 25	13.9	2.7	0.72
September 26	6.5	1.1	0.00
September 27	8.3	-4.8	0.00
September 28	11.5	-3.0	0.00
September 29	8.3	-6.5	0.38
September 30	14.4	2.5	2.00

October 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
October 1	12.7	0.0	0.00	0.0
October 2	16.1	0.2	0.00	0.0
October 3	12.5	-2.2	0.00	0.0
October 4	13.2	-1.4	0.08	0.0
October 5	6.8	1.9	1.05	0.0
October 6	6.0	-3.5	0.02	0.2
October 7	9.6	-4.0	0.00	0.0
October 8	13.1	-2.8	0.00	0.0
October 9	15.3	0.1	0.00	0.0
October 10	9.3	-2.7	0.02	0.0
October 11	12.6	-2.3	0.00	0.0
October 12	10.1	1.2	0.04	0.0
October 13	9.4	-1.9	0.08	0.0
October 14	8.5	-0.5	0.28	0.0
October 15	2.8	-5.6	0.00	0.0
October 16	15.8	-2.1	0.10	0.4
October 17	22.9	0.2	0.00	0.0
October 18	4.4	-4.7	0.00	0.0
October 19	5.6	-9.5	0.00	0.0
October 20	4.2	-6.9	0.36	1.6
October 21	3.6	-1.4	1.26	5.0
October 22	6.6	0.1	0.00	0.0
October 23	8.9	0.4	0.66	0.0
October 24	2.4	0.3	0.58	0.0
October 25	2.9	-3.7	0.00	0.0
October 26	2.9	-0.6	0.10	0.4
October 27	5.2	-1.0	0.02	0.2
October 28	6.7	4.8	0.97	0.0
October 29	11.3	0.9	0.25	0.0
October 30	1.7	-5.4	0.00	0.0
October 31	0.1	-4.5	1.30	9.0

November 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
November 1	3.3	-4.5	5.95	12.6
November 2	4.8	-7.3	0.52	5.4
November 3	-6.5	-9.8	0.00	0.0
November 4	-9.3	-17.9	0.00	0.0
November 5	-3.2	-15.9	0.44	8.6
November 6	-10.3	-17.2	0.00	0.0
November 7	-9.6	-17.8	0.00	0.0
November 8	-0.6	-21.0	0.00	0.0
November 9	0.4	-1.8	0.30	3.0
November 10	-1.7	-14.6	0.02	0.2
November 11	-2.7	-10.5	0.02	0.2
November 12	2.0	-4.2	0.00	0.0
November 13	8.7	-4.8	0.00	0.0
November 14	5.5	-7.2	0.02	0.0
November 15	3.7	-0.2	0.00	0.0
November 16	2.3	-9.4	0.00	0.0
November 17	4.3	-9.2	0.14	0.0
November 18	7.5	2.3	1.18	0.0
November 19	5.3	1.0	0.00	0.0
November 20	3.3	-3.9	0.00	0.0
November 21	9.0	-1.4	0.00	0.0
November 22	3.2	-6.5	0.14	1.0
November 23	-6.0	-10.0	0.20	4.2
November 24	-7.0	-12.2	0.00	0.0
November 25	-8.7	-17.7	0.00	0.0
November 26	-2.3	-18.4	0.42	7.2
November 27	-2.3	-7.7	0.37	4.8
November 28	-6.5	-17.9	0.00	0.0
November 29	-0.7	-16.3	0.32	3.2
November 30	-1.0	-26.1	0.60	9.0

December 1991 Thunder Bay Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
December 1	-8.5	-28.1	0.00	0.2
December 2	-9.4	-31.6	0.18	5.8
December 3	-9.2	-17.3	0.12	5.2
December 4	-17.0	-26.3	0.00	0.0
December 5	-17.2	-28.6	0.00	0.0
December 6	-5.6	-17.2	1.20	14.0
December 7	-6.9	-12.8	0.00	0.0
December 8	-1.7	-9.8	0.40	3.2
December 9	-5.0	-14.6	0.24	3.4
December 10	3.0	-7.0	0.00	0.0
December 11	5.5	-11.4	0.00	0.0
December 12	2.7	-5.2	0.04	0.4
December 13	-3.0	-11.8	0.40	4.0
December 14	-4.7	-17.6	0.38	6.0
December 15	-17.6	-25.4	0.00	0.0
December 16	-11.8	-23.7	0.56	10.6
December 17	-9.9	-23.6	0.02	0.4
December 18	-16.9	-28.5	0.00	0.0
December 19	-1.2	-26.7	0.00	0.0
December 20	1.9	-2.9	0.02	0.2
December 21	2.5	-8.5	0.00	0.0
December 22	3.0	-6.9	0.00	0.0
December 23	-0.6	-17.6	0.00	0.2
December 24	-1.5	-15.9	0.00	0.0
December 25	0.5	-16.9	0.00	0.0
December 26	0.5	-9.0	0.00	0.0
December 27	2.0	-12.8	0.00	0.0
December 28	-2.2	-18.2	0.00	0.0
December 29	-3.4	-18.3	0.00	0.0
December 30	0.1	-4.5	0.00	0.0
December 31	-0.6	-3.5	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
2004–2024	Thunder Bay CS	location
1941–2003	Thunder Bay A	location