Cornwall Weather in 1966

Historical record of Cornwall, Ontario weather for the year 1966 based on NOAA data.

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1966 Cornwall Weather Extremes
Highest temperature	33.9 °C	July 3
Lowest temperature	-30.0 °C	January 26
Highest daily low	22.2 °C	July 13
Lowest daily high	-18.9 °C	February 19
Most daily precipitation	5.3 cm	January 30
Most daily snow	53.3 cm	January 30
Total annual precipitation	88.0 cm	-
Total annual snow	277.1 cm	-

What was the hottest temperature in Cornwall in 1966?

The highest temperature recorded in Cornwall, Ontario in 1966 was 33.9 °C which happened on July 3.

Highest Temperatures: All-Time By Year

Highest Temperatures in Cornwall in 1966

Rank	Temperature	Date
1	33.9 °C	Jul 3
2	33.3 °C	Jul 2
3	32.2 °C	Aug 9
3	32.2 °C	Jun 26
5	31.1 °C	Jul 25
5	31.1 °C	Jul 12
5	31.1 °C	Jun 24
8	30.6 °C	Jul 24
8	30.6 °C	Jun 25
10	30.0 °C	Aug 1
10	30.0 °C	Jul 13
10	30.0 °C	Jul 11
10	30.0 °C	May 24

What was the coldest temperature in Cornwall in 1966?

The lowest temperature recorded in Cornwall, Ontario in 1966 was -30.0 °C which happened on Jan 26.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Cornwall in 1966

Rank	Temperature	Date
1	-30.0 °C	January 26
2	-26.7 °C	February 20
3	-25.0 °C	February 19
4	-23.9 °C	January 27
5	-23.3 °C	February 7
6	-22.2 °C	January 16
6	-22.2 °C	January 12
8	-21.7 °C	January 29
9	-21.1 °C	January 9
10	-20.0 °C	January 25

January 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
January 1	8.3	-0.6	0.00	0.0
January 2	1.1	-9.4	0.08	0.8
January 3	5.0	-6.7	0.64	0.0
January 4	1.1	-8.3	0.00	0.0
January 5	1.7	-3.3	0.00	0.0
January 6	-1.1	-7.8	0.64	0.0
January 7	-6.7	-11.7	0.64	6.4
January 8	-13.9	-17.8	0.00	0.0
January 9	-8.3	-21.1	0.00	0.0
January 10	3.3	-13.9	0.00	0.0
January 11	-11.1	-16.7	0.00	0.0
January 12	-17.2	-22.2	0.00	0.0
January 13	-12.8	-19.4	0.00	0.0
January 14	-6.7	-15.0	0.00	0.0
January 15	-16.7	-19.4	0.00	0.0
January 16	-11.1	-22.2	0.13	1.3
January 17	-6.7	-13.3	0.00	0.0
January 18	-5.6	-7.8	0.10	1.0
January 19	-1.1	-6.7	0.03	0.3
January 20	-0.6	-3.3	0.03	0.3
January 21	0.6	-4.4	0.00	0.0
January 22	-1.7	-4.4	0.00	0.0
January 23	-3.9	-5.6	3.81	38.1
January 24	-3.3	-8.3	0.00	0.0
January 25	-16.7	-20.0	0.00	0.0
January 26	-16.1	-30.0	0.00	0.0
January 27	-13.3	-23.9	0.28	2.8
January 28	-16.7	-19.4	0.00	0.0
January 29	-13.9	-21.7	0.03	0.3
January 30	-6.7	-18.3	5.33	53.3
January 31	-9.4	-12.2	2.67	26.7

February 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
February 1	-5.0	-10.6	0.00	0.0
February 2	-3.9	-14.4	0.00	0.0
February 3	-5.0	-15.0	0.00	0.0
February 4	-5.6	-13.3	0.00	0.0
February 5	-7.8	-12.8	0.00	0.0
February 6	-12.2	-19.4	0.00	0.0
February 7	-10.6	-23.3	0.00	0.0
February 8	-4.4	-18.3	0.00	0.0
February 9	-4.4	-12.2	0.00	0.0
February 10	8.9	-8.9	1.12	0.0
February 11	7.2	3.9	0.00	0.0
February 12	3.9	-0.6	0.00	0.0
February 13	1.1	-2.2	0.97	9.7
February 14	1.1	-5.6	0.00	0.0
February 15	-4.4	-13.3	0.00	0.0
February 16	2.2	-13.3	1.02	10.2
February 17	-8.3	-12.8	0.00	0.0
February 18	-14.4	-17.2	0.00	0.0
February 19	-18.9	-25.0	0.00	0.0
February 20	-17.2	-26.7	0.08	0.8
February 21	-11.1	-19.4	1.14	11.4
February 22	-5.0	-13.3	0.00	0.0
February 23	-3.3	-7.8	0.00	0.0
February 24	-2.2	-16.7	0.00	0.0
February 25	-2.2	-10.6	0.38	3.8
February 26	2.8	-7.8	0.00	0.0
February 27	4.4	-9.4	0.00	0.0
February 28	5.6	-6.7	n/a	0.0

March 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
March 1	4.4	1.1	0.74	0.0
March 2	3.3	0.6	0.00	0.0
March 3	5.0	-3.9	0.00	0.0
March 4	1.7	-1.7	1.09	0.0
March 5	2.2	0.6	1.68	0.0
March 6	2.8	-0.6	0.00	0.0
March 7	-2.8	-6.1	0.00	0.0
March 8	-2.2	-11.1	0.00	0.0
March 9	3.3	-8.9	0.00	0.0
March 10	3.3	-4.4	0.00	0.0
March 11	-3.3	-11.1	0.00	0.0
March 12	0.0	-7.8	n/a	n/a
March 13	0.6	-5.0	0.00	0.0
March 14	5.6	-6.7	0.00	0.0
March 15	-3.9	-11.1	0.00	0.0
March 16	1.1	-10.0	0.00	0.0
March 17	5.0	-6.7	0.08	0.0
March 18	17.8	1.1	0.05	0.0
March 19	12.2	5.6	0.10	0.0
March 20	6.1	1.7	0.00	0.0
March 21	3.3	-1.1	0.00	0.0
March 22	6.1	-2.2	0.03	0.0
March 23	12.2	2.2	0.00	0.0
March 24	12.2	2.8	0.41	3.8
March 25	0.0	-2.8	0.08	0.8
March 26	0.0	-5.6	0.00	0.0
March 27	-5.6	-11.7	0.00	0.0
March 28	-6.1	-10.0	0.00	0.0
March 29	0.0	-9.4	0.13	1.3
March 30	2.2	-2.2	0.00	0.0
March 31	4.4	-2.8	0.00	0.0

April 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
April 1	4.4	-3.9	0.00	0.0
April 2	8.3	-0.6	0.00	0.0
April 3	5.6	-1.1	0.00	0.0
April 4	5.0	-1.7	0.00	0.0
April 5	6.7	-1.1	0.00	0.0
April 6	7.8	-1.1	0.03	0.3
April 7	7.8	0.6	0.25	0.8
April 8	6.7	0.0	0.00	0.0
April 9	6.7	0.0	0.03	0.0
April 10	8.3	0.0	0.00	0.0
April 11	8.9	0.0	0.00	0.0
April 12	10.6	1.7	0.00	0.0
April 13	11.7	1.7	0.00	0.0
April 14	13.9	1.7	0.00	0.0
April 15	13.9	0.6	0.00	0.0
April 16	14.4	1.1	0.00	0.0
April 17	13.9	0.6	0.00	0.0
April 18	13.9	1.1	0.00	0.0
April 19	18.9	1.1	0.00	0.0
April 20	15.6	8.3	0.23	0.0
April 21	23.3	6.1	0.48	0.0
April 22	n/a	1.1	0.00	0.0
April 23	n/a	1.7	0.08	0.0
April 24	n/a	7.8	0.03	0.0
April 25	13.9	7.8	0.00	0.0
April 26	5.0	-2.2	0.00	0.0
April 27	4.4	-6.7	0.00	0.0
April 28	3.9	-2.2	0.08	0.0
April 29	14.4	2.2	0.00	0.0
April 30	16.1	2.8	0.10	0.0

May 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)
May 1	12.2	7.8	0.00
May 2	9.4	-3.3	0.00
May 3	11.7	-0.6	0.36
May 4	12.2	2.2	0.03
May 5	18.3	1.7	0.00
May 6	11.1	4.4	0.46
May 7	6.1	-5.6	0.00
May 8	11.1	-1.7	0.00
May 9	5.6	-0.6	0.00
May 10	8.3	-2.8	0.00
May 11	10.0	0.0	0.00
May 12	11.1	2.8	0.76
May 13	15.0	3.3	0.58
May 14	20.0	3.3	0.00
May 15	21.7	5.6	0.00
May 16	18.9	8.3	0.99
May 17	15.0	10.0	0.03
May 18	18.9	10.6	0.23
May 19	21.7	13.9	0.00
May 20	21.7	11.1	0.00
May 21	20.6	8.9	0.00
May 22	23.3	5.0	0.00
May 23	24.4	11.1	0.00
May 24	30.0	10.6	0.00
May 25	23.9	14.4	0.00
May 26	26.1	11.7	0.00
May 27	28.9	13.9	0.10
May 28	21.1	11.7	0.00
May 29	13.9	6.1	0.23
May 30	11.7	5.0	0.00
May 31	15.6	5.0	0.00

June 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)
June 1	17.2	5.0	0.00
June 2	20.6	5.0	0.00
June 3	23.9	9.4	0.03
June 4	24.4	15.0	2.54
June 5	24.4	15.0	0.05
June 6	28.9	14.4	0.36
June 7	24.4	17.8	0.10
June 8	21.1	13.9	0.86
June 9	17.2	7.2	1.42
June 10	12.8	8.3	0.81
June 11	17.8	5.6	0.00
June 12	25.0	8.3	0.00
June 13	27.8	11.1	0.00
June 14	26.7	18.3	0.28
June 15	22.2	12.8	1.24
June 16	20.0	13.3	0.41
June 17	22.8	10.6	0.10
June 18	23.3	11.1	0.00
June 19	26.1	11.1	0.00
June 20	27.2	14.4	0.46
June 21	21.1	11.7	0.00
June 22	24.4	8.3	0.00
June 23	29.4	17.2	0.00
June 24	31.1	19.4	0.00
June 25	30.6	20.0	0.00
June 26	32.2	17.8	0.00
June 27	29.4	21.7	0.00
June 28	28.9	17.8	0.00
June 29	27.8	16.1	0.23
June 30	25.6	13.9	0.00

July 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)
July 1	29.4	13.9	0.00
July 2	33.3	19.4	0.00
July 3	33.9	20.6	0.10
July 4	27.2	18.3	0.00
July 5	25.6	11.7	0.00
July 6	27.8	15.6	0.13
July 7	25.0	19.4	0.00
July 8	26.1	16.1	0.00
July 9	28.9	13.3	0.00
July 10	28.9	17.8	2.62
July 11	30.0	17.8	0.00
July 12	31.1	20.0	0.05
July 13	30.0	22.2	0.00
July 14	25.6	14.4	0.00
July 15	22.8	11.7	0.00
July 16	26.7	11.7	0.00
July 17	28.9	15.0	0.00
July 18	27.2	21.1	0.30
July 19	20.6	12.8	0.25
July 20	22.8	11.1	0.00
July 21	20.0	11.7	0.91
July 22	26.7	11.7	0.00
July 23	29.4	18.3	0.00
July 24	30.6	17.8	0.00
July 25	31.1	19.4	0.20
July 26	25.0	16.7	0.00
July 27	25.0	11.1	0.00
July 28	24.4	15.6	2.41
July 29	20.6	14.4	0.00
July 30	23.9	11.1	0.00
July 31	27.8	11.1	0.00

August 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)
August 1	30.0	17.2	0.00
August 2	22.2	17.2	2.06
August 3	21.7	12.2	0.00
August 4	25.6	14.4	0.00
August 5	27.2	15.0	0.00
August 6	26.1	15.0	0.43
August 7	28.9	18.3	0.00
August 8	27.8	17.2	0.00
August 9	32.2	20.6	2.21
August 10	26.7	19.4	0.23
August 11	22.2	17.2	0.30
August 12	22.2	16.1	0.00
August 13	22.2	11.1	0.00
August 14	23.3	11.7	0.00
August 15	21.7	15.6	0.00
August 16	23.9	16.1	1.83
August 17	24.4	18.3	0.00
August 18	28.3	16.7	0.00
August 19	23.9	16.7	0.00
August 20	22.8	11.1	0.00
August 21	22.2	11.7	0.03
August 22	17.2	15.0	0.89
August 23	23.9	15.6	0.00
August 24	19.4	15.0	0.08
August 25	22.2	12.8	0.15
August 26	22.2	14.4	0.00
August 27	23.3	14.4	0.05
August 28	22.8	10.6	0.00
August 29	27.8	11.7	0.15
August 30	26.7	19.4	0.05
August 31	26.7	13.9	0.00

September 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)
September 1	26.7	12.2	0.00
September 2	28.3	17.2	0.00
September 3	18.9	12.8	0.00
September 4	18.9	12.2	4.09
September 5	22.2	15.0	0.05
September 6	19.4	13.9	0.00
September 7	21.7	11.1	0.00
September 8	22.8	10.0	0.00
September 9	24.4	11.7	0.00
September 10	25.0	12.8	0.13
September 11	19.4	8.3	0.00
September 12	20.6	5.6	0.00
September 13	22.8	8.3	0.00
September 14	23.3	14.4	0.30
September 15	13.3	7.8	0.41
September 16	17.8	3.3	0.00
September 17	20.0	10.0	0.00
September 18	23.3	11.7	0.00
September 19	15.6	9.4	0.00
September 20	18.3	3.9	0.00
September 21	15.6	3.9	2.01
September 22	15.6	10.0	0.91
September 23	15.6	10.6	0.00
September 24	12.2	5.0	0.00
September 25	12.2	3.9	0.00
September 26	13.9	3.3	0.00
September 27	14.4	2.2	0.00
September 28	16.1	6.1	0.00
September 29	18.3	5.6	0.25
September 30	12.2	11.1	0.00

October 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
October 1	13.9	6.1	0.00	0.0
October 2	14.4	5.0	0.00	0.0
October 3	16.7	5.6	0.03	0.0
October 4	16.7	9.4	0.38	0.0
October 5	12.2	8.9	0.05	0.0
October 6	13.3	3.9	0.00	0.0
October 7	18.3	8.3	0.00	0.0
October 8	21.1	12.2	0.00	0.0
October 9	22.8	13.3	n/a	0.0
October 10	18.9	7.8	0.46	0.0
October 11	11.1	6.7	0.76	0.0
October 12	8.9	3.3	0.00	0.0
October 13	11.7	3.3	0.00	0.0
October 14	15.6	6.7	0.00	0.0
October 15	23.3	11.1	n/a	0.0
October 16	14.4	10.0	0.00	0.0
October 17	6.1	1.7	0.00	0.0
October 18	5.0	2.2	0.00	0.0
October 19	6.1	3.9	0.48	0.0
October 20	7.2	2.8	0.00	0.0
October 21	15.0	0.6	0.00	0.0
October 22	20.0	5.6	0.00	0.0
October 23	16.7	11.1	0.00	0.0
October 24	15.0	4.4	0.00	0.0
October 25	11.1	2.8	0.00	0.0
October 26	11.1	-0.6	0.00	0.0
October 27	14.4	2.8	0.00	0.0
October 28	16.7	7.8	0.00	0.0
October 29	10.0	2.2	0.00	0.0
October 30	1.7	-6.7	0.03	0.3
October 31	8.9	-2.8	0.00	0.0

November 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
November 1	11.1	7.2	0.61	0.0
November 2	18.3	7.2	0.76	0.0
November 3	17.2	5.0	0.81	2.5
November 4	4.4	-0.6	0.00	0.0
November 5	3.9	-3.3	0.30	0.0
November 6	3.3	0.0	0.00	0.0
November 7	7.8	0.0	0.46	0.0
November 8	12.8	4.4	0.74	0.0
November 9	16.1	8.3	2.67	0.0
November 10	20.6	8.9	0.97	0.0
November 11	8.9	5.6	0.05	0.0
November 12	7.8	4.4	0.00	0.0
November 13	0.6	-5.0	0.00	0.0
November 14	6.7	-4.4	0.00	0.0
November 15	1.1	-2.8	0.25	2.5
November 16	0.0	-4.4	0.64	6.4
November 17	1.7	-1.7	0.56	0.0
November 18	11.7	-1.1	0.18	0.0
November 19	-2.2	-5.6	0.00	0.0
November 20	6.7	-8.3	0.00	0.0
November 21	3.3	-8.9	0.00	0.0
November 22	6.1	-6.7	0.00	0.0
November 23	14.4	-4.4	0.76	0.0
November 24	8.9	4.4	0.53	0.0
November 25	12.2	5.0	0.89	0.0
November 26	5.6	4.4	0.03	0.0
November 27	9.4	2.8	0.00	0.0
November 28	15.6	5.6	0.00	0.0
November 29	11.7	5.0	0.00	0.0
November 30	6.7	0.6	0.00	0.0

December 1966 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
December 1	0.6	-6.7	1.47	14.7
December 2	-6.7	-11.1	0.00	0.0
December 3	-12.2	-16.7	0.08	0.8
December 4	-7.8	-16.7	0.00	0.0
December 5	0.6	-13.3	0.58	5.8
December 6	1.7	-3.3	0.89	0.0
December 7	2.2	-1.7	1.88	0.0
December 8	13.9	1.7	0.36	0.0
December 9	16.1	3.9	n/a	0.0
December 10	6.7	4.4	n/a	0.0
December 11	-0.6	-4.4	0.00	0.0
December 12	-5.6	-9.4	0.00	0.0
December 13	-1.1	-8.9	0.00	0.0
December 14	-0.6	-6.1	0.00	0.0
December 15	-1.7	-6.7	0.00	0.0
December 16	4.4	-7.8	0.00	0.0
December 17	6.7	1.7	0.91	0.0
December 18	3.9	-8.3	0.43	0.8
December 19	-8.3	-15.0	0.00	0.0
December 20	-4.4	-12.8	0.08	0.8
December 21	-4.4	-7.2	0.25	2.5
December 22	-3.9	-6.7	0.20	2.0
December 23	-10.0	-16.1	0.03	0.3
December 24	-8.3	-13.3	1.85	18.5
December 25	-7.2	-11.7	2.79	27.9
December 26	-6.7	-10.6	0.00	0.0
December 27	-10.0	-14.4	0.08	0.8
December 28	-5.6	-18.3	0.46	4.6
December 29	-1.1	-13.9	1.09	10.9
December 30	-7.2	-11.1	0.00	0.0
December 31	-1.7	-16.1	0.08	0.8

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Weather Station Details

Years	Station	Coordinates
1950–2024	Cornwall	location
1867–1887	Cornwall	location