Ottawa Weather in 1970

Historical record of Ottawa, Ontario weather for the year 1970 based on NOAA data.

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1970 Ottawa Weather Extremes
Highest temperature	33.3 °C	August 15
Lowest temperature	-31.1 °C	February 14
Highest daily low	22.2 °C	July 31
Lowest daily high	-19.4 °C	January 21
Most daily precipitation	4.1 cm	July 20
Most daily snow	33.0 cm	April 2
Total annual precipitation	79.2 cm	-
Total annual snow	311.2 cm	-

What was the hottest temperature in Ottawa in 1970?

The highest temperature recorded in Ottawa, Ontario in 1970 was 33.3 °C which happened on August 15.

Highest Temperatures: All-Time By Year

Highest Temperatures in Ottawa in 1970

Rank	Temperature	Date
1	33.3 °C	Aug 15
2	31.7 °C	Aug 14
2	31.7 °C	Aug 13
2	31.7 °C	Jul 27
2	31.7 °C	Jul 9
6	31.1 °C	Aug 11
6	31.1 °C	Aug 10
6	31.1 °C	Jun 9
9	30.6 °C	Aug 16
9	30.6 °C	Aug 12
9	30.6 °C	Jul 30
9	30.6 °C	Jul 29
9	30.6 °C	Jun 10
9	30.6 °C	Jun 2

What was the coldest temperature in Ottawa in 1970?

The lowest temperature recorded in Ottawa, Ontario in 1970 was -31.1 °C which happened on Feb 14.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Ottawa in 1970

Rank	Temperature	Date
1	-31.1 °C	February 14
2	-28.9 °C	February 26
2	-28.9 °C	February 4
4	-26.7 °C	February 5
4	-26.7 °C	January 24
6	-26.1 °C	January 22
6	-26.1 °C	January 19
8	-25.6 °C	December 22
8	-25.6 °C	February 27
8	-25.6 °C	January 20
8	-25.6 °C	January 15

January 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
January 1	-11.7	-19.4	0.00	0.0
January 2	-8.9	-15.6	0.00	0.0
January 3	-10.0	-22.2	0.00	0.0
January 4	-12.2	-22.2	0.00	0.0
January 5	-7.8	-19.4	0.00	0.0
January 6	-8.3	-16.7	0.00	0.0
January 7	-8.3	-20.0	0.00	0.0
January 8	-10.0	-18.3	0.10	2.3
January 9	-11.7	-17.8	0.00	0.0
January 10	-11.7	-15.6	0.00	0.0
January 11	-13.3	-17.2	0.00	0.0
January 12	-13.9	-21.7	0.13	1.5
January 13	-12.8	-18.9	0.00	0.0
January 14	-18.3	-22.2	0.00	0.0
January 15	-17.2	-25.6	0.00	0.0
January 16	-6.7	-22.2	0.10	1.0
January 17	-4.4	-13.9	0.05	0.5
January 18	-12.2	-16.7	0.00	0.0
January 19	-18.3	-26.1	0.05	0.5
January 20	-17.8	-25.6	0.00	0.0
January 21	-19.4	-25.0	0.00	0.0
January 22	-11.1	-26.1	0.23	3.3
January 23	-8.3	-20.0	0.05	0.5
January 24	-12.2	-26.7	0.13	5.1
January 25	-6.7	-15.6	0.30	6.1
January 26	-2.2	-10.0	0.00	0.0
January 27	-6.7	-12.2	0.00	0.0
January 28	4.4	-11.1	0.97	8.1
January 29	3.3	-6.7	0.08	0.8
January 30	-13.9	-18.9	0.05	0.5
January 31	0.6	-21.7	0.00	0.0

February 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
February 1	4.4	-2.2	0.00	0.0
February 2	4.4	-0.6	1.09	2.8
February 3	-15.0	-18.9	0.74	13.5
February 4	-17.8	-28.9	0.00	0.0
February 5	-6.7	-26.7	0.05	0.5
February 6	1.1	-12.2	0.00	0.0
February 7	1.7	-11.7	0.00	0.0
February 8	2.2	-12.8	0.00	0.0
February 9	-2.2	-13.3	0.03	0.0
February 10	1.1	-4.4	3.30	33.0
February 11	0.6	-6.1	0.43	6.6
February 12	-15.0	-17.8	0.05	0.8
February 13	-18.9	-23.3	0.00	0.0
February 14	-13.3	-31.1	0.00	0.0
February 15	-11.1	-21.7	0.28	5.8
February 16	-8.3	-18.3	0.05	0.8
February 17	-1.7	-15.0	0.00	0.0
February 18	-0.6	-11.1	0.20	0.5
February 19	-10.0	-15.6	0.00	0.0
February 20	-6.1	-21.7	0.00	0.0
February 21	0.0	-17.8	0.00	0.0
February 22	4.4	-8.9	0.05	0.5
February 23	-10.6	-17.2	0.25	9.4
February 24	-12.8	-14.4	0.10	3.0
February 25	-12.2	-17.2	0.00	0.0
February 26	-13.9	-28.9	0.00	0.0
February 27	-6.1	-25.6	0.36	6.6
February 28	-2.2	-14.4	0.00	0.0

March 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
March 1	-0.6	-13.9	0.23	1.8
March 2	-0.6	-8.3	0.00	0.0
March 3	-1.7	-13.3	0.00	0.0
March 4	-1.7	-10.6	0.76	3.0
March 5	1.1	-3.3	0.00	0.0
March 6	1.1	-2.8	0.05	1.0
March 7	1.7	-5.0	0.53	9.1
March 8	-7.2	-12.8	0.00	0.0
March 9	-5.0	-16.1	0.00	0.0
March 10	-1.7	-12.8	0.00	0.0
March 11	-1.1	-8.3	0.00	0.0
March 12	0.6	-8.3	0.00	0.0
March 13	0.6	-7.8	0.00	0.0
March 14	-1.1	-5.6	0.13	1.0
March 15	-3.9	-8.9	0.05	0.5
March 16	-2.2	-10.6	0.00	0.0
March 17	3.3	-11.1	0.00	0.0
March 18	5.6	-8.3	0.00	0.0
March 19	7.2	-10.0	0.00	0.0
March 20	3.3	-8.3	1.17	5.3
March 21	5.0	0.0	0.00	0.0
March 22	5.0	0.0	0.76	4.8
March 23	1.1	0.6	0.64	5.3
March 24	3.3	-2.8	0.00	0.0
March 25	3.3	-2.8	0.00	0.0
March 26	2.8	-5.0	0.79	1.3
March 27	2.2	-2.8	0.00	0.0
March 28	2.8	-4.4	0.28	2.8
March 29	-4.4	-12.8	0.00	0.0
March 30	-3.9	-12.8	0.00	0.0
March 31	2.2	-11.1	0.00	0.0

April 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
April 1	3.9	-5.0	0.10	1.0
April 2	0.6	-2.2	3.45	33.0
April 3	2.8	-3.3	0.00	0.0
April 4	2.8	-6.1	0.00	0.0
April 5	0.0	-8.3	0.00	0.0
April 6	3.9	-7.8	0.00	0.0
April 7	5.6	-5.0	0.00	0.0
April 8	9.4	0.0	0.00	0.0
April 9	10.6	3.3	0.00	0.0
April 10	1.7	0.0	0.00	0.0
April 11	3.3	-7.8	0.00	0.0
April 12	8.3	-2.2	0.00	0.0
April 13	11.7	1.7	0.00	0.0
April 14	13.3	0.6	0.00	0.0
April 15	12.2	1.1	0.00	0.0
April 16	12.2	0.0	0.00	0.0
April 17	18.3	2.2	0.13	0.0
April 18	10.0	3.3	0.00	0.0
April 19	9.4	-1.7	0.00	0.0
April 20	5.0	0.6	0.91	1.0
April 21	11.1	1.7	0.20	0.0
April 22	7.2	4.4	0.00	0.0
April 23	17.2	1.7	0.00	0.0
April 24	8.3	4.4	1.32	0.0
April 25	15.0	3.3	0.00	0.0
April 26	22.8	0.6	0.00	0.0
April 27	26.7	7.8	0.00	0.0
April 28	20.6	9.4	0.00	0.0
April 29	21.1	8.9	0.00	0.0
April 30	27.8	8.3	0.00	0.0

May 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
May 1	28.3	18.3	0.10
May 2	15.0	11.7	0.00
May 3	13.9	6.1	0.00
May 4	19.4	3.9	0.00
May 5	13.3	6.1	1.27
May 6	5.0	-1.1	0.00
May 7	14.4	-1.1	0.00
May 8	18.3	5.6	0.13
May 9	12.2	7.2	0.46
May 10	18.3	7.2	1.45
May 11	15.0	8.3	0.00
May 12	17.2	1.7	0.00
May 13	14.4	11.7	0.00
May 14	18.9	5.6	0.00
May 15	15.0	6.7	0.25
May 16	18.3	9.4	1.37
May 17	15.0	8.9	0.00
May 18	19.4	4.4	0.00
May 19	25.0	6.7	0.00
May 20	19.4	8.9	0.00
May 21	22.8	7.8	0.00
May 22	22.2	13.9	0.08
May 23	20.0	4.4	0.00
May 24	15.0	7.2	0.00
May 25	17.2	7.2	0.51
May 26	21.1	8.3	0.08
May 27	13.9	5.0	0.00
May 28	17.2	2.2	0.00
May 29	20.6	2.2	0.00
May 30	23.9	8.3	0.00
May 31	25.0	15.0	0.71

June 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
June 1	27.2	17.8	0.00
June 2	30.6	20.0	0.15
June 3	16.1	12.2	0.00
June 4	21.1	4.4	0.00
June 5	22.2	7.8	0.00
June 6	18.3	8.9	0.00
June 7	22.8	7.8	0.00
June 8	28.3	11.7	0.00
June 9	31.1	15.0	0.00
June 10	30.6	15.6	0.00
June 11	25.6	17.8	0.00
June 12	22.8	12.2	0.00
June 13	20.0	11.1	0.00
June 14	24.4	6.1	0.00
June 15	26.7	8.3	0.00
June 16	23.3	14.4	0.00
June 17	24.4	16.1	0.58
June 18	27.8	20.0	0.00
June 19	21.7	16.1	0.15
June 20	16.1	7.2	0.00
June 21	24.4	7.2	0.00
June 22	26.1	11.1	0.00
June 23	27.2	13.3	0.00
June 24	29.4	13.9	0.58
June 25	17.8	9.4	0.00
June 26	22.2	7.8	0.66
June 27	22.2	11.7	0.08
June 28	23.9	8.3	0.00
June 29	20.6	11.7	0.20
June 30	25.6	16.7	0.00

July 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
July 1	23.9	10.0	0.23
July 2	22.8	12.2	0.03
July 3	27.2	13.9	0.10
July 4	27.2	16.7	0.30
July 5	23.9	15.0	0.38
July 6	27.8	12.8	0.00
July 7	29.4	12.2	0.00
July 8	30.0	19.4	0.00
July 9	31.7	15.0	0.13
July 10	28.3	20.0	0.51
July 11	23.9	16.7	0.64
July 12	25.6	13.9	0.00
July 13	24.4	9.4	0.00
July 14	20.6	16.7	0.33
July 15	29.4	18.3	0.13
July 16	24.4	18.9	1.78
July 17	28.3	11.7	0.00
July 18	21.7	16.1	0.00
July 19	20.6	7.8	0.84
July 20	22.2	13.9	4.11
July 21	16.7	13.3	0.00
July 22	26.7	11.7	0.00
July 23	30.0	12.8	0.00
July 24	29.4	14.4	0.00
July 25	28.3	20.0	0.00
July 26	30.0	18.3	0.00
July 27	31.7	20.0	0.00
July 28	29.4	21.1	0.64
July 29	30.6	20.6	0.00
July 30	30.6	21.1	0.25
July 31	26.7	22.2	0.23

August 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
August 1	30.0	21.7	0.23
August 2	29.4	18.9	0.00
August 3	26.1	16.7	0.00
August 4	21.7	13.9	0.00
August 5	25.0	10.6	0.00
August 6	26.7	10.6	0.00
August 7	29.4	16.7	0.00
August 8	30.0	13.9	0.00
August 9	30.0	20.0	0.00
August 10	31.1	16.1	0.00
August 11	31.1	17.8	0.10
August 12	30.6	18.3	0.00
August 13	31.7	17.8	0.00
August 14	31.7	17.8	0.00
August 15	33.3	17.8	0.00
August 16	30.6	18.3	1.73
August 17	23.9	15.0	0.00
August 18	24.4	11.1	0.00
August 19	23.9	8.3	0.56
August 20	28.9	20.6	0.05
August 21	22.8	10.0	0.00
August 22	18.3	7.8	0.00
August 23	17.8	13.9	0.00
August 24	23.9	7.2	0.00
August 25	25.0	13.9	0.00
August 26	28.3	17.2	0.10
August 27	23.3	12.2	0.00
August 28	25.6	15.0	0.13
August 29	20.6	14.4	0.00
August 30	18.3	5.6	1.96
August 31	17.2	12.2	0.00

September 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
September 1	17.2	9.4	0.00
September 2	22.2	6.7	0.00
September 3	21.1	10.0	2.72
September 4	26.1	15.0	0.33
September 5	19.4	16.1	0.00
September 6	20.0	11.7	0.00
September 7	20.6	8.9	0.00
September 8	21.7	8.3	0.00
September 9	19.4	15.6	0.00
September 10	24.4	17.8	0.56
September 11	21.1	8.9	0.00
September 12	23.3	6.1	0.10
September 13	17.2	9.4	0.00
September 14	15.6	5.6	0.00
September 15	13.3	10.0	0.41
September 16	16.7	9.4	0.00
September 17	15.6	3.3	0.05
September 18	16.7	10.6	0.00
September 19	19.4	10.0	0.00
September 20	23.9	8.9	0.00
September 21	23.3	10.6	0.18
September 22	27.2	17.8	0.94
September 23	18.9	15.6	0.00
September 24	20.0	10.0	1.50
September 25	24.4	13.9	0.00
September 26	24.4	11.7	2.08
September 27	15.0	11.1	0.00
September 28	14.4	6.1	0.18
September 29	11.1	5.0	0.18
September 30	10.0	6.7	1.27

October 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)
October 1	12.8	8.3	0.00
October 2	16.1	6.1	1.24
October 3	15.0	8.9	2.26
October 4	12.8	6.1	0.00
October 5	13.9	3.3	0.00
October 6	14.4	0.0	0.00
October 7	25.0	10.0	0.00
October 8	24.4	11.7	0.00
October 9	23.9	12.2	0.00
October 10	22.8	14.4	0.38
October 11	16.1	10.0	0.74
October 12	19.4	9.4	0.05
October 13	18.9	7.2	0.66
October 14	23.3	13.9	0.15
October 15	10.0	7.8	0.00
October 16	7.2	2.8	0.00
October 17	7.2	0.0	0.00
October 18	14.4	-1.1	0.00
October 19	8.9	-3.9	0.00
October 20	15.0	-2.8	0.00
October 21	12.8	5.6	1.19
October 22	12.2	9.4	1.40
October 23	13.9	11.1	0.00
October 24	15.6	6.7	0.00
October 25	11.7	5.6	0.00
October 26	11.1	7.8	0.00
October 27	8.9	3.9	0.00
October 28	11.1	-1.7	0.00
October 29	11.7	-1.7	0.00
October 30	9.4	0.6	0.00
October 31	10.6	5.6	0.08

November 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
November 1	12.2	7.8	0.00	0.0
November 2	13.9	9.4	0.05	0.0
November 3	10.6	3.3	0.00	0.0
November 4	8.9	-1.1	0.00	0.0
November 5	5.0	0.6	0.00	0.0
November 6	9.4	-2.2	0.00	0.0
November 7	8.3	5.6	0.00	0.0
November 8	6.7	-6.1	0.00	0.0
November 9	9.4	-3.3	0.00	0.0
November 10	11.7	1.7	0.38	0.0
November 11	13.3	7.8	1.35	0.0
November 12	12.2	10.6	2.03	0.0
November 13	6.7	4.4	0.23	0.0
November 14	2.8	1.1	1.07	6.9
November 15	0.6	-0.6	0.48	3.8
November 16	1.1	-5.0	0.05	0.5
November 17	3.9	-7.2	0.00	0.0
November 18	1.7	-5.0	0.00	0.0
November 19	6.1	-1.1	0.00	0.0
November 20	10.0	-0.6	1.27	0.0
November 21	6.1	3.3	0.00	0.0
November 22	8.3	0.6	0.20	0.0
November 23	0.0	-3.3	0.00	0.0
November 24	-3.9	-7.8	0.00	0.0
November 25	-1.7	-10.0	0.18	2.0
November 26	2.8	-3.9	0.05	0.0
November 27	1.7	0.0	0.56	0.0
November 28	2.2	0.6	0.53	3.0
November 29	2.2	-1.7	0.36	0.0
November 30	6.7	-1.7	0.00	0.0

December 1970 Ottawa Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
December 1	8.9	-5.6	0.10	0.0
December 2	10.0	-1.7	0.00	0.0
December 3	3.3	0.6	0.66	10.7
December 4	-4.4	-7.2	0.00	0.0
December 5	-7.2	-14.4	0.38	5.3
December 6	-4.4	-9.4	0.00	0.0
December 7	-11.1	-14.4	0.05	0.5
December 8	-10.0	-16.7	0.58	8.6
December 9	-3.9	-11.7	0.79	11.9
December 10	-6.7	-8.3	0.00	0.0
December 11	-10.0	-18.3	0.00	0.0
December 12	-10.0	-21.1	0.00	0.0
December 13	-7.2	-16.7	0.79	13.2
December 14	-4.4	-10.0	0.00	0.0
December 15	-11.1	-19.4	0.00	0.0
December 16	-7.2	-20.0	0.43	4.6
December 17	-4.4	-13.3	0.25	3.0
December 18	-2.8	-6.1	0.38	6.9
December 19	-1.1	-5.6	0.64	7.6
December 20	-10.6	-13.3	0.10	3.0
December 21	-15.0	-20.6	0.00	0.0
December 22	-16.7	-25.6	0.69	18.0
December 23	-12.2	-23.9	0.79	13.0
December 24	-8.3	-18.9	0.00	0.0
December 25	-9.4	-13.3	0.15	3.8
December 26	-7.2	-15.0	0.00	0.0
December 27	-9.4	-17.2	0.00	0.0
December 28	-10.0	-13.9	0.00	0.0
December 29	-11.1	-13.3	0.00	0.0
December 30	-10.6	-20.0	0.00	0.0
December 31	-11.7	-19.4	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1889–2024	Ottawa CDA	location