Ottawa Weather in 1940

Historical record of Ottawa, Ontario weather for the year 1940 based on NOAA data.

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1940 Ottawa Weather Extremes
Highest temperature	32.2 °C	August 18
Lowest temperature	-32.8 °C	December 4
Highest daily low	20.6 °C	August 13
Lowest daily high	-23.3 °C	January 17
Most daily precipitation	3.4 cm	May 25
Most daily snow	21.6 cm	March 14
Total annual precipitation	78.2 cm	-
Total annual snow	232.7 cm	-

What was the hottest temperature in Ottawa in 1940?

The highest temperature recorded in Ottawa, Ontario in 1940 was 32.2 °C which happened on August 18.

Highest Temperatures: All-Time By Year

Highest Temperatures in Ottawa in 1940

Rank	Temperature	Date
1	32.2 °C	Aug 18
2	31.1 °C	Aug 17
2	31.1 °C	Aug 11
2	31.1 °C	Jul 23
5	30.6 °C	Aug 12
5	30.6 °C	Aug 10
5	30.6 °C	Jul 30
5	30.6 °C	Jul 22
9	30.0 °C	Aug 16
9	30.0 °C	Aug 13
9	30.0 °C	Aug 9
9	30.0 °C	Jul 8
9	30.0 °C	Jun 4

What was the coldest temperature in Ottawa in 1940?

The lowest temperature recorded in Ottawa, Ontario in 1940 was -32.8 °C which happened on Dec 4.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Ottawa in 1940

Rank	Temperature	Date
1	-32.8 °C	December 4
2	-28.9 °C	December 14
2	-28.9 °C	December 6
4	-28.3 °C	January 18
4	-28.3 °C	January 17
6	-27.8 °C	January 5
7	-27.2 °C	February 27
8	-26.7 °C	January 23
8	-26.7 °C	January 7
10	-26.1 °C	January 9

January 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
January 1	-11.1	-21.1	0.00	0.0
January 2	-13.3	-20.0	0.00	0.0
January 3	-8.3	-16.7	0.00	0.0
January 4	-12.8	-20.0	0.00	0.0
January 5	-12.2	-27.8	0.00	0.0
January 6	-11.1	-15.6	0.00	0.0
January 7	-16.1	-26.7	0.00	0.0
January 8	-10.6	-24.4	0.00	0.0
January 9	-11.1	-26.1	0.00	0.0
January 10	-8.9	-20.6	0.00	0.0
January 11	-5.6	-14.4	0.46	4.6
January 12	0.0	-9.4	0.46	4.6
January 13	1.7	-6.7	0.00	0.0
January 14	1.7	-5.0	2.03	11.7
January 15	1.1	0.0	0.08	0.8
January 16	-21.1	-22.2	0.00	0.0
January 17	-23.3	-28.3	0.00	0.0
January 18	-10.0	-28.3	0.00	0.0
January 19	-10.0	-14.4	0.00	0.0
January 20	-10.0	-16.7	0.18	1.8
January 21	-6.1	-13.3	0.13	1.3
January 22	-15.0	-16.1	0.00	0.0
January 23	-15.6	-26.7	0.00	0.0
January 24	-12.2	-23.3	0.15	1.5
January 25	-11.1	-15.0	0.00	0.0
January 26	-15.0	-19.4	0.00	0.0
January 27	-12.8	-20.6	0.00	0.0
January 28	-15.0	-17.8	0.00	0.0
January 29	-14.4	-25.6	0.00	0.0
January 30	-9.4	-24.4	0.00	0.0
January 31	-6.7	-23.3	0.00	0.0

February 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
February 1	-6.7	-18.9	0.10	1.0
February 2	-11.1	-16.1	0.00	0.0
February 3	-5.0	-17.8	0.00	0.0
February 4	-7.8	-20.0	0.00	0.0
February 5	-3.9	-17.8	0.00	0.0
February 6	-2.2	-12.8	0.97	9.7
February 7	1.1	-5.6	0.10	1.0
February 8	-1.1	-17.2	0.13	1.3
February 9	-12.2	-18.9	0.00	0.0
February 10	-3.9	-18.9	0.97	9.7
February 11	-1.7	-11.1	0.00	0.0
February 12	-9.4	-12.8	0.94	9.4
February 13	-10.6	-20.0	0.00	0.0
February 14	-5.6	-23.3	0.00	0.0
February 15	-6.1	-13.3	0.00	0.0
February 16	-3.9	-16.1	0.00	0.0
February 17	-3.3	-8.3	0.00	0.0
February 18	-2.2	-17.8	0.00	0.0
February 19	3.3	-4.4	0.00	0.0
February 20	1.1	-2.2	0.00	0.0
February 21	-4.4	-12.2	0.00	0.0
February 22	-4.4	-17.2	0.08	0.8
February 23	-3.3	-15.0	0.05	0.5
February 24	-10.6	-19.4	0.99	9.9
February 25	-7.8	-19.4	0.00	0.0
February 26	-10.0	-25.0	0.00	0.0
February 27	-10.6	-27.2	0.00	0.0
February 28	-6.1	-15.0	0.00	0.0
February 29	-1.1	-20.0	0.08	0.8

March 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
March 1	-7.8	-18.9	0.00	0.0
March 2	-6.1	-23.3	0.00	0.0
March 3	-0.6	-7.8	0.56	4.6
March 4	-1.7	-2.8	1.14	11.4
March 5	0.0	-2.8	0.53	5.3
March 6	0.0	-1.7	0.51	5.1
March 7	-3.9	-5.6	0.38	3.8
March 8	-1.7	-6.7	0.00	0.0
March 9	-6.7	-8.9	0.15	1.5
March 10	-8.9	-13.3	0.00	0.0
March 11	-7.2	-17.2	0.00	0.0
March 12	-6.7	-18.3	0.00	0.0
March 13	-5.6	-16.7	0.00	0.0
March 14	0.0	-12.2	2.41	21.6
March 15	-1.7	-3.3	0.00	0.0
March 16	0.0	-12.8	0.18	1.8
March 17	-3.9	-16.7	0.00	0.0
March 18	-3.9	-22.8	0.51	5.1
March 19	0.0	-9.4	0.13	1.3
March 20	-1.7	-8.9	0.38	3.8
March 21	-1.7	-13.9	0.76	7.6
March 22	-1.7	-11.7	0.03	0.3
March 23	-11.1	-18.9	0.00	0.0
March 24	-7.8	-19.4	0.00	0.0
March 25	-3.3	-9.4	0.00	0.0
March 26	1.1	-6.1	0.00	0.0
March 27	0.6	-11.7	0.00	0.0
March 28	2.8	-15.6	0.00	0.0
March 29	4.4	-8.9	0.00	0.0
March 30	5.6	0.6	0.00	0.0
March 31	7.2	-0.6	0.00	0.0

April 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
April 1	3.3	0.0	0.00	0.0
April 2	1.7	-6.7	0.00	0.0
April 3	2.8	-10.0	0.00	0.0
April 4	1.1	-0.6	0.38	0.0
April 5	2.8	-3.3	0.00	0.0
April 6	5.0	-5.0	0.00	0.0
April 7	3.9	-7.2	0.00	0.0
April 8	2.8	-2.2	0.74	0.0
April 9	4.4	1.1	0.05	0.0
April 10	3.3	-3.3	0.03	0.3
April 11	6.1	-2.8	1.68	9.7
April 12	-2.8	-8.3	0.03	0.3
April 13	-1.7	-8.9	0.00	0.0
April 14	0.6	-8.3	0.00	0.0
April 15	5.6	-6.1	0.86	0.0
April 16	8.9	-1.7	0.00	0.0
April 17	9.4	-1.1	0.89	0.0
April 18	8.9	1.7	0.89	0.0
April 19	8.9	2.2	0.00	0.0
April 20	7.8	-1.7	0.18	0.0
April 21	3.9	2.2	0.28	0.0
April 22	6.7	0.6	0.00	0.0
April 23	8.9	1.1	0.00	0.0
April 24	11.1	1.7	0.00	0.0
April 25	12.8	0.0	0.00	0.0
April 26	12.2	-1.1	0.00	0.0
April 27	12.8	0.6	0.00	0.0
April 28	16.7	-2.8	0.00	0.0
April 29	22.2	0.0	0.00	0.0
April 30	22.8	7.8	0.48	0.0

May 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
May 1	22.2	9.4	0.79
May 2	13.3	6.1	1.09
May 3	11.7	6.1	0.00
May 4	13.9	5.6	0.00
May 5	18.3	-0.6	0.20
May 6	18.9	2.8	0.05
May 7	15.6	7.8	0.00
May 8	15.6	1.7	0.00
May 9	15.6	0.0	0.00
May 10	18.3	-1.7	0.00
May 11	10.0	3.9	0.10
May 12	13.9	-2.2	0.00
May 13	15.6	3.9	0.00
May 14	20.0	2.2	0.08
May 15	21.1	6.1	0.64
May 16	19.4	11.1	1.12
May 17	12.2	7.2	0.00
May 18	14.4	6.7	0.00
May 19	17.8	2.8	0.30
May 20	23.3	11.1	0.00
May 21	23.9	8.9	0.00
May 22	26.7	10.6	0.51
May 23	21.1	14.4	0.43
May 24	21.7	12.2	0.00
May 25	20.0	13.9	3.40
May 26	23.3	14.4	0.36
May 27	22.2	14.4	0.00
May 28	23.3	13.3	1.78
May 29	20.6	10.0	0.00
May 30	22.8	6.7	0.00
May 31	20.0	10.6	0.00

June 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
June 1	23.9	13.3	0.00
June 2	26.1	11.7	0.00
June 3	28.9	13.3	0.00
June 4	30.0	15.0	0.00
June 5	28.3	13.3	0.00
June 6	26.1	11.1	0.00
June 7	21.7	9.4	0.28
June 8	23.9	13.3	1.96
June 9	19.4	12.8	0.00
June 10	26.7	15.6	0.00
June 11	22.2	16.1	0.00
June 12	22.8	16.7	1.09
June 13	23.9	17.8	0.00
June 14	20.0	5.0	0.00
June 15	26.1	8.9	0.00
June 16	20.6	6.7	0.00
June 17	26.7	10.6	0.00
June 18	24.4	17.8	0.13
June 19	20.6	16.7	0.00
June 20	15.0	7.2	0.00
June 21	15.0	4.4	0.00
June 22	20.0	1.7	0.00
June 23	23.3	6.1	0.00
June 24	18.3	6.7	0.58
June 25	18.3	12.2	0.05
June 26	16.7	8.9	0.84
June 27	18.9	8.3	0.00
June 28	18.3	10.6	0.69
June 29	19.4	12.8	0.48
June 30	18.9	10.6	0.36

July 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
July 1	20.6	10.0	0.05
July 2	20.6	11.1	0.00
July 3	23.3	4.4	0.00
July 4	24.4	7.8	0.00
July 5	25.6	10.6	0.00
July 6	28.9	7.8	0.00
July 7	28.3	11.1	0.00
July 8	30.0	13.3	0.00
July 9	28.3	13.3	0.00
July 10	26.7	10.0	0.30
July 11	18.3	12.8	0.00
July 12	22.8	8.3	0.00
July 13	25.6	5.0	0.00
July 14	25.6	8.3	0.10
July 15	23.3	14.4	1.19
July 16	22.2	13.3	0.00
July 17	26.7	8.9	0.00
July 18	28.9	11.1	0.00
July 19	23.9	13.9	0.86
July 20	22.8	17.2	2.62
July 21	29.4	19.4	0.00
July 22	30.6	18.9	0.00
July 23	31.1	17.2	0.00
July 24	28.3	18.9	0.13
July 25	29.4	17.8	1.68
July 26	29.4	20.6	0.00
July 27	28.3	18.3	0.00
July 28	28.9	17.8	0.00
July 29	25.0	14.4	0.23
July 30	30.6	18.9	0.00
July 31	23.3	16.1	0.00

August 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
August 1	23.9	15.6	0.00
August 2	25.6	10.0	0.00
August 3	28.9	11.1	0.00
August 4	29.4	18.3	0.20
August 5	28.3	18.3	0.10
August 6	26.7	20.6	0.00
August 7	27.2	12.2	0.00
August 8	28.3	11.1	0.00
August 9	30.0	11.7	0.00
August 10	30.6	15.0	0.00
August 11	31.1	16.7	0.00
August 12	30.6	16.7	0.53
August 13	30.0	20.6	0.00
August 14	28.9	12.8	0.00
August 15	27.2	10.6	0.00
August 16	30.0	12.2	0.00
August 17	31.1	15.6	0.00
August 18	32.2	17.8	1.98
August 19	19.4	16.1	0.00
August 20	17.8	10.0	0.00
August 21	19.4	5.0	0.00
August 22	24.4	6.1	0.15
August 23	15.0	9.4	0.00
August 24	15.0	6.1	0.00
August 25	18.9	3.3	0.00
August 26	21.7	3.3	0.00
August 27	22.8	6.1	0.00
August 28	25.0	6.7	0.00
August 29	26.7	11.7	0.00
August 30	26.7	17.8	0.15
August 31	26.1	19.4	0.38

September 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
September 1	25.0	18.3	0.00
September 2	23.9	13.3	0.00
September 3	22.8	13.9	0.00
September 4	21.7	11.1	0.00
September 5	22.2	9.4	0.00
September 6	21.7	5.0	0.00
September 7	22.2	2.2	0.00
September 8	22.8	6.7	0.00
September 9	19.4	12.8	0.91
September 10	18.9	13.3	0.03
September 11	14.4	6.7	0.00
September 12	16.1	3.9	0.00
September 13	18.3	10.0	0.00
September 14	21.7	5.0	0.00
September 15	22.2	11.1	0.00
September 16	23.3	10.6	0.00
September 17	23.9	11.1	0.00
September 18	23.9	10.6	0.08
September 19	25.6	11.1	0.00
September 20	21.1	11.1	0.41
September 21	23.9	14.4	0.00
September 22	23.9	12.2	0.00
September 23	22.2	4.4	0.43
September 24	16.7	9.4	1.07
September 25	11.7	4.4	0.00
September 26	12.8	0.0	0.00
September 27	18.9	1.1	0.00
September 28	22.2	3.3	0.00
September 29	16.1	10.0	0.00
September 30	16.7	2.2	0.00

October 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
October 1	21.1	-1.1	0.00
October 2	22.2	5.0	0.00
October 3	13.9	3.9	0.00
October 4	16.1	2.2	0.00
October 5	20.6	-2.2	0.00
October 6	21.1	8.9	0.08
October 7	20.6	13.9	0.48
October 8	14.4	5.6	0.13
October 9	12.8	4.4	0.00
October 10	15.0	0.0	0.00
October 11	17.8	2.2	0.05
October 12	20.6	6.1	0.00
October 13	18.3	11.1	0.00
October 14	12.8	-0.6	2.24
October 15	7.8	3.3	0.13
October 16	6.7	-4.4	0.00
October 17	8.9	-3.9	0.33
October 18	3.9	1.7	0.00
October 19	2.8	-6.7	0.00
October 20	4.4	-8.3	0.20
October 21	2.8	-4.4	0.00
October 22	7.2	-6.7	0.00
October 23	17.8	0.0	0.00
October 24	11.1	1.7	0.00
October 25	8.3	1.7	0.10
October 26	5.0	0.6	0.00
October 27	5.0	-3.3	0.00
October 28	5.0	-5.6	0.00
October 29	6.7	-5.6	0.00
October 30	5.0	-2.2	0.38
October 31	10.6	-1.7	0.00

November 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
November 1	8.9	-4.4	1.09	0.0
November 2	11.1	2.8	0.05	0.0
November 3	7.8	1.1	0.00	0.0
November 4	10.0	0.0	0.00	0.0
November 5	9.4	1.7	1.02	0.0
November 6	6.7	4.4	0.05	0.0
November 7	1.7	-0.6	0.05	0.0
November 8	2.2	-1.1	0.00	0.0
November 9	1.7	-3.9	0.00	0.0
November 10	3.9	-2.2	0.33	0.0
November 11	15.6	1.7	1.02	0.0
November 12	8.3	6.1	0.00	0.0
November 13	4.4	-5.0	0.00	0.0
November 14	3.9	-4.4	0.91	9.1
November 15	0.0	-1.7	0.51	5.1
November 16	-0.6	-3.9	0.03	0.3
November 17	2.2	-7.2	0.00	0.0
November 18	1.7	-2.2	0.00	0.0
November 19	6.1	-8.9	0.53	0.0
November 20	8.3	1.1	0.08	0.0
November 21	10.0	-4.4	0.76	0.0
November 22	10.6	0.6	0.00	0.0
November 23	1.1	-1.7	0.13	1.3
November 24	1.7	-2.8	0.03	0.3
November 25	-5.0	-11.1	0.00	0.0
November 26	-5.6	-14.4	0.91	9.1
November 27	-6.7	-12.2	0.66	6.6
November 28	-11.1	-13.3	0.00	0.0
November 29	-8.3	-23.3	0.58	5.8
November 30	-6.1	-15.0	0.94	9.4

December 1940 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
December 1	-8.9	-12.8	0.03	0.3
December 2	-7.8	-23.3	0.05	0.5
December 3	-20.6	-23.3	0.00	0.0
December 4	-10.6	-32.8	1.04	10.4
December 5	-7.8	-17.8	0.00	0.0
December 6	-10.0	-28.9	0.43	4.3
December 7	4.4	-17.2	0.53	4.6
December 8	-2.8	-5.6	0.00	0.0
December 9	-11.1	-25.0	0.00	0.0
December 10	3.9	-20.6	0.00	0.0
December 11	-5.0	-20.0	0.05	0.5
December 12	-2.8	-10.0	0.91	9.1
December 13	-10.0	-12.8	0.00	0.0
December 14	-8.9	-28.9	0.00	0.0
December 15	-2.2	-17.8	0.05	0.0
December 16	3.3	-8.3	2.06	0.5
December 17	-7.8	-10.6	0.00	0.0
December 18	-2.8	-20.6	0.00	0.0
December 19	2.8	-6.7	0.00	0.0
December 20	2.8	-3.9	0.56	0.0
December 21	1.7	0.0	0.08	0.8
December 22	1.1	-2.2	0.00	0.0
December 23	-8.3	-13.3	0.00	0.0
December 24	-5.6	-17.2	0.00	0.0
December 25	-1.7	-15.0	0.00	0.0
December 26	0.0	-4.4	0.66	0.0
December 27	2.2	-1.7	0.71	0.0
December 28	2.8	0.6	0.89	0.0
December 29	3.3	1.7	3.25	0.0
December 30	1.7	0.0	0.18	0.8
December 31	-3.3	-6.7	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1889–2024	Ottawa CDA	location