Cornwall Weather in 2011

Historical record of Cornwall, Ontario weather for the year 2011 based on NOAA data.

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2011 Cornwall Weather Extremes
Highest temperature	35.0 °C	July 21
Lowest temperature	-27.5 °C	January 24
Highest daily low	25.0 °C	July 21
Lowest daily high	-19.0 °C	January 23
Most daily precipitation	4.3 cm	April 16
Most daily snow	31.0 cm	February 2

What was the hottest temperature in Cornwall in 2011?

The highest temperature recorded in Cornwall, Ontario in 2011 was 35.0 °C which happened on July 21.

Highest Temperatures: All-Time By Year

Highest Temperatures in Cornwall in 2011

Rank	Temperature	Date
1	35.0 °C	Jul 21
2	32.5 °C	Jul 23
3	32.0 °C	Aug 1
3	32.0 °C	Jul 22
3	32.0 °C	Jul 20
3	32.0 °C	Jul 17
3	32.0 °C	Jul 12
3	32.0 °C	Jul 11
3	32.0 °C	Jul 3
3	32.0 °C	Jun 16

What was the coldest temperature in Cornwall in 2011?

The lowest temperature recorded in Cornwall, Ontario in 2011 was -27.5 °C which happened on Jan 24.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Cornwall in 2011

Rank	Temperature	Date
1	-27.5 °C	January 24
2	-23.0 °C	January 23
3	-22.0 °C	January 31
3	-22.0 °C	January 17
5	-20.0 °C	January 25
6	-18.0 °C	December 29
7	-17.0 °C	December 30
7	-17.0 °C	March 3
7	-17.0 °C	February 22
7	-17.0 °C	February 15

January 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
January 1	11.0	5.0	0.00	0.0
January 2	3.0	0.0	0.00	0.0
January 3	-1.0	-4.0	0.10	1.0
January 4	-2.0	-5.5	0.50	5.0
January 5	-2.0	-4.5	0.00	0.0
January 6	-3.0	-10.0	0.00	0.0
January 7	-2.5	-9.5	0.30	3.0
January 8	-5.0	-8.0	0.45	4.5
January 9	-5.5	-8.5	0.20	2.0
January 10	-6.5	-9.5	0.00	0.0
January 11	-6.0	-9.0	0.00	0.0
January 12	-5.5	-10.0	0.10	1.0
January 13	-8.0	-9.0	0.00	0.0
January 14	-7.0	-9.5	0.00	0.0
January 15	-7.0	-14.5	0.80	8.0
January 16	-10.5	-13.5	0.10	1.0
January 17	-9.0	-22.0	0.00	0.0
January 18	n/a	n/a	n/a	n/a
January 19	-4.0	-5.0	0.10	1.0
January 20	n/a	n/a	n/a	n/a
January 21	n/a	n/a	n/a	n/a
January 22	n/a	n/a	n/a	n/a
January 23	-19.0	-23.0	0.00	0.0
January 24	-15.5	-27.5	0.30	n/a
January 25	-10.5	-20.0	0.20	2.0
January 26	-6.0	-12.5	0.20	2.0
January 27	-2.0	-8.5	0.00	0.0
January 28	1.0	-8.0	0.40	4.0
January 29	-3.5	-6.0	0.00	0.0
January 30	n/a	n/a	n/a	n/a
January 31	-14.5	-22.0	0.00	0.0

February 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
February 1	-11.5	-16.5	0.70	7.0
February 2	-9.5	-15.0	3.10	31.0
February 3	-4.5	-16.0	0.00	0.0
February 4	-1.5	-7.0	0.00	0.0
February 5	7.0	-8.0	1.60	16.0
February 6	2.0	-3.0	0.30	3.0
February 7	1.5	-2.0	0.30	3.0
February 8	-8.0	-15.0	0.10	1.0
February 9	-4.0	-14.0	0.00	0.0
February 10	-7.0	-16.0	0.00	0.0
February 11	0.0	-12.0	0.00	0.0
February 12	0.0	-3.0	0.15	1.5
February 13	9.0	-7.0	0.00	n/a
February 14	9.0	4.5	0.00	0.0
February 15	-7.0	-17.0	0.00	0.0
February 16	-1.0	-11.0	0.00	0.0
February 17	n/a	n/a	n/a	n/a
February 18	13.0	6.5	0.00	0.0
February 19	-4.5	-9.0	0.10	1.0
February 20	-5.0	-13.5	0.20	2.0
February 21	-10.0	-15.0	0.00	0.0
February 22	-5.5	-17.0	0.00	0.0
February 23	n/a	n/a	n/a	n/a
February 24	n/a	n/a	n/a	n/a
February 25	-2.0	-3.5	0.40	4.0
February 26	-7.5	-12.5	0.20	2.0
February 27	n/a	n/a	n/a	n/a
February 28	n/a	n/a	n/a	n/a

March 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
March 1	n/a	n/a	n/a	n/a
March 2	n/a	n/a	n/a	n/a
March 3	-8.0	-17.0	0.00	0.0
March 4	n/a	n/a	n/a	n/a
March 5	7.0	-3.0	1.30	4.0
March 6	-1.0	-5.0	1.70	17.0
March 7	-4.0	-9.5	0.40	n/a
March 8	-3.0	-14.5	0.00	0.0
March 9	n/a	n/a	n/a	n/a
March 10	n/a	n/a	n/a	n/a
March 11	n/a	n/a	n/a	n/a
March 12	4.0	0.0	0.00	0.0
March 13	2.5	1.0	0.00	0.0
March 14	2.5	-2.5	0.00	0.0
March 15	n/a	n/a	n/a	n/a
March 16	n/a	n/a	n/a	n/a
March 17	13.0	2.0	0.00	0.0
March 18	11.5	7.5	0.00	0.0
March 19	2.5	-2.5	0.00	0.0
March 20	5.0	-6.5	0.00	0.0
March 21	3.0	-1.0	0.00	0.0
March 22	5.0	-1.0	0.00	0.0
March 23	1.0	-7.0	0.00	0.0
March 24	2.0	-7.0	0.00	0.0
March 25	-1.0	-7.0	0.00	0.0
March 26	0.0	-8.0	0.00	0.0
March 27	-1.0	-9.0	0.00	0.0
March 28	0.0	-6.0	0.00	0.0
March 29	4.5	-3.0	0.00	0.0
March 30	9.0	-3.0	0.00	0.0
March 31	8.0	-3.0	0.00	0.0

April 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
April 1	9.0	2.0	0.00	0.0
April 2	11.0	1.0	0.00	0.0
April 3	10.5	0.5	1.00	0.0
April 4	14.5	2.0	1.32	0.0
April 5	8.5	2.5	0.30	0.0
April 6	6.5	-1.5	0.00	0.0
April 7	10.0	-5.0	0.00	0.0
April 8	13.0	-2.5	0.00	0.0
April 9	15.5	1.5	0.00	0.0
April 10	19.0	4.0	2.80	0.0
April 11	24.5	9.0	0.00	0.0
April 12	15.0	4.0	0.10	0.0
April 13	9.0	5.0	0.00	0.0
April 14	10.0	3.0	0.00	0.0
April 15	n/a	n/a	n/a	n/a
April 16	7.0	-1.0	4.30	0.0
April 17	9.0	3.0	0.14	0.0
April 18	5.5	1.0	0.00	0.0
April 19	9.5	-1.0	0.62	0.0
April 20	5.0	1.5	1.36	0.0
April 21	6.0	0.0	0.00	0.0
April 22	13.0	-1.0	0.00	0.0
April 23	18.0	6.0	0.26	0.0
April 24	14.5	6.0	0.00	0.0
April 25	16.0	4.5	0.15	0.0
April 26	12.0	9.0	1.19	0.0
April 27	23.0	8.0	1.25	0.0
April 28	24.4	14.5	1.06	0.0
April 29	13.0	8.5	0.00	0.0
April 30	18.0	4.0	0.00	0.0

May 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
May 1	22.0	3.5	0.00	0.0
May 2	19.0	11.0	0.10	0.0
May 3	12.0	7.0	2.22	0.0
May 4	9.0	6.0	0.23	0.0
May 5	8.5	6.0	0.44	0.0
May 6	18.5	2.5	0.00	0.0
May 7	18.0	7.0	0.00	0.0
May 8	16.5	9.0	0.00	0.0
May 9	18.5	9.5	0.00	0.0
May 10	18.0	6.5	0.00	0.0
May 11	19.5	6.5	0.00	0.0
May 12	21.5	7.5	0.00	0.0
May 13	24.5	11.0	0.10	0.0
May 14	13.0	12.0	2.96	0.0
May 15	11.0	7.0	1.62	0.0
May 16	8.0	6.0	1.65	0.0
May 17	11.5	6.0	0.10	0.0
May 18	19.0	9.0	1.20	0.0
May 19	24.0	14.5	0.06	0.0
May 20	23.5	15.0	0.00	0.0
May 21	23.5	15.0	0.00	0.0
May 22	21.0	12.0	0.20	0.0
May 23	28.5	16.0	0.20	0.0
May 24	23.0	18.0	0.00	0.0
May 25	20.0	8.5	0.00	0.0
May 26	20.0	14.0	1.20	0.0
May 27	15.0	11.0	1.50	0.0
May 28	22.0	10.0	0.90	0.0
May 29	24.0	17.0	0.05	0.0
May 30	27.5	17.0	0.00	0.0
May 31	n/a	n/a	n/a	n/a

June 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
June 1	n/a	n/a	n/a	n/a
June 2	n/a	n/a	n/a	n/a
June 3	n/a	n/a	n/a	n/a
June 4	23.5	10.0	0.00	0.0
June 5	24.0	14.0	0.00	0.0
June 6	28.0	15.0	0.00	0.0
June 7	30.0	15.0	0.00	0.0
June 8	31.5	20.0	0.00	0.0
June 9	n/a	n/a	n/a	n/a
June 10	n/a	n/a	n/a	n/a
June 11	24.5	16.5	0.46	0.0
June 12	24.0	15.5	0.28	0.0
June 13	17.0	14.0	0.34	0.0
June 14	24.0	11.0	0.25	0.0
June 15	n/a	n/a	n/a	n/a
June 16	32.0	16.0	0.00	0.0
June 17	26.0	16.0	0.00	0.0
June 18	27.0	17.0	0.00	0.0
June 19	25.0	11.0	0.00	0.0
June 20	26.0	12.5	0.00	0.0
June 21	29.0	15.0	0.00	0.0
June 22	24.0	15.0	0.10	0.0
June 23	25.0	17.0	0.90	0.0
June 24	25.0	18.5	1.48	0.0
June 25	24.0	17.5	0.00	0.0
June 26	24.5	18.0	0.00	0.0
June 27	28.0	16.0	0.00	0.0
June 28	29.5	18.5	0.00	0.0
June 29	19.5	16.5	0.06	0.0
June 30	23.5	15.5	0.08	0.0

July 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
July 1	28.0	15.5	0.00	0.0
July 2	30.0	16.5	0.00	0.0
July 3	32.0	21.5	0.00	0.0
July 4	31.5	17.0	0.00	0.0
July 5	31.0	17.0	1.80	0.0
July 6	27.0	19.0	2.90	0.0
July 7	25.0	15.0	0.00	0.0
July 8	29.0	15.0	0.30	0.0
July 9	26.0	14.0	0.00	0.0
July 10	30.0	16.0	0.00	0.0
July 11	32.0	22.0	0.00	0.0
July 12	32.0	22.0	0.00	0.0
July 13	25.0	18.0	0.00	0.0
July 14	28.0	15.0	0.00	0.0
July 15	29.0	15.5	0.00	0.0
July 16	30.5	16.0	0.00	0.0
July 17	32.0	20.0	0.22	0.0
July 18	28.5	20.5	0.00	0.0
July 19	29.0	17.0	0.00	0.0
July 20	32.0	17.5	0.00	0.0
July 21	35.0	25.0	0.00	0.0
July 22	32.0	24.0	0.00	0.0
July 23	32.5	22.0	0.00	0.0
July 24	27.0	16.5	0.03	0.0
July 25	n/a	n/a	n/a	n/a
July 26	27.0	15.0	0.20	0.0
July 27	28.0	17.0	0.00	0.0
July 28	n/a	n/a	n/a	n/a
July 29	n/a	n/a	n/a	n/a
July 30	n/a	n/a	n/a	n/a
July 31	31.0	16.0	0.00	0.0

August 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
August 1	32.0	21.0	0.00	0.0
August 2	25.5	18.0	0.00	0.0
August 3	27.0	15.0	0.00	0.0
August 4	27.0	16.0	0.00	0.0
August 5	31.0	16.0	0.00	0.0
August 6	31.0	18.0	0.00	0.0
August 7	30.0	21.0	0.00	0.0
August 8	29.0	20.5	0.00	0.0
August 9	26.5	14.0	4.10	0.0
August 10	27.0	17.0	0.05	0.0
August 11	22.0	16.5	0.20	0.0
August 12	28.0	15.5	0.00	0.0
August 13	29.5	17.5	0.06	0.0
August 14	28.0	18.5	0.24	0.0
August 15	25.0	17.0	0.40	0.0
August 16	n/a	n/a	n/a	n/a
August 17	n/a	n/a	n/a	n/a
August 18	n/a	n/a	n/a	n/a
August 19	29.0	17.0	0.00	0.0
August 20	31.0	17.0	0.23	0.0
August 21	22.0	18.0	2.14	0.0
August 22	23.0	14.0	0.00	0.0
August 23	25.0	13.0	0.00	0.0
August 24	28.0	17.5	0.20	0.0
August 25	26.0	21.0	0.20	0.0
August 26	23.5	15.5	0.00	0.0
August 27	27.0	14.5	0.00	0.0
August 28	18.5	16.5	2.85	0.0
August 29	23.5	12.5	0.00	0.0
August 30	24.5	14.0	0.24	0.0
August 31	24.5	14.0	0.00	0.0

September 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
September 1	n/a	n/a	n/a	n/a
September 2	n/a	n/a	n/a	n/a
September 3	29.5	22.0	0.00	0.0
September 4	28.0	20.0	2.01	0.0
September 5	20.0	19.0	1.65	0.0
September 6	20.0	14.0	0.00	0.0
September 7	19.0	13.0	0.00	0.0
September 8	23.0	16.0	0.00	0.0
September 9	26.0	14.0	0.00	0.0
September 10	21.0	11.0	0.00	0.0
September 11	24.0	7.0	0.00	0.0
September 12	n/a	n/a	n/a	n/a
September 13	28.0	14.0	0.20	0.0
September 14	20.5	12.0	0.50	0.0
September 15	n/a	n/a	n/a	n/a
September 16	13.5	5.0	0.00	0.0
September 17	n/a	n/a	n/a	n/a
September 18	19.5	4.0	0.00	0.0
September 19	22.0	6.0	0.60	0.0
September 20	23.0	13.5	0.00	0.0
September 21	24.5	12.0	0.00	0.0
September 22	23.5	17.5	0.08	0.0
September 23	23.5	13.0	0.00	0.0
September 24	23.0	17.5	0.00	0.0
September 25	25.0	15.5	0.00	0.0
September 26	27.0	12.0	0.00	0.0
September 27	26.0	13.0	0.00	0.0
September 28	26.0	15.0	0.80	0.0
September 29	n/a	n/a	n/a	n/a
September 30	n/a	n/a	n/a	n/a

October 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
October 1	12.0	7.0	1.10	0.0
October 2	11.0	6.0	0.24	0.0
October 3	13.0	9.5	0.10	0.0
October 4	15.0	11.5	0.20	0.0
October 5	16.0	10.0	0.00	0.0
October 6	15.0	3.0	0.00	0.0
October 7	21.0	5.0	0.00	0.0
October 8	25.5	12.0	0.00	0.0
October 9	26.5	13.0	0.00	0.0
October 10	24.5	14.5	0.00	0.0
October 11	19.5	8.0	0.00	0.0
October 12	16.5	8.0	0.38	0.0
October 13	17.5	8.5	0.81	0.0
October 14	23.0	14.0	0.75	0.0
October 15	12.5	9.0	1.94	0.0
October 16	15.0	8.5	0.14	0.0
October 17	12.0	7.0	0.40	0.0
October 18	14.0	7.0	0.00	0.0
October 19	13.0	7.0	0.80	0.0
October 20	14.0	10.0	0.80	0.0
October 21	14.0	7.0	0.20	0.0
October 22	10.0	7.0	0.00	0.0
October 23	11.0	6.0	0.00	0.0
October 24	19.0	1.5	0.00	0.0
October 25	10.5	7.0	0.20	0.0
October 26	n/a	n/a	n/a	n/a
October 27	n/a	n/a	n/a	n/a
October 28	n/a	n/a	n/a	n/a
October 29	n/a	n/a	n/a	n/a
October 30	9.5	-1.0	0.00	0.0
October 31	n/a	n/a	n/a	n/a

November 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
November 1	n/a	n/a	n/a	n/a
November 2	17.5	3.5	0.00	0.0
November 3	14.0	7.5	0.18	0.0
November 4	6.0	-0.5	0.00	0.0
November 5	8.0	-3.0	0.00	0.0
November 6	14.0	-2.0	0.00	0.0
November 7	16.0	2.0	0.00	0.0
November 8	16.0	7.0	0.00	0.0
November 9	18.0	6.0	0.00	0.0
November 10	15.0	7.0	0.00	0.0
November 11	5.0	1.0	0.00	0.0
November 12	9.0	1.0	0.00	0.0
November 13	17.0	4.0	0.10	0.0
November 14	18.5	13.5	0.80	0.0
November 15	12.5	7.5	0.00	0.0
November 16	14.5	2.5	0.00	0.0
November 17	4.0	2.0	0.00	0.0
November 18	3.5	-2.5	0.00	0.0
November 19	13.0	2.0	0.02	0.0
November 20	13.0	7.0	0.20	0.0
November 21	0.5	-6.5	0.00	0.0
November 22	0.5	-8.0	1.20	12.0
November 23	1.5	-2.5	0.30	3.0
November 24	8.0	-1.0	0.00	0.0
November 25	12.0	3.5	0.00	0.0
November 26	11.0	8.5	0.00	0.0
November 27	15.0	3.5	0.60	0.0
November 28	10.0	7.0	0.25	0.0
November 29	7.0	4.0	1.85	0.0
November 30	8.5	5.0	0.30	0.0

December 2011 Cornwall Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
December 1	4.0	-5.0	0.00	0.0
December 2	5.0	-2.0	0.30	0.0
December 3	4.0	-5.0	0.00	0.0
December 4	15.0	-4.0	0.20	0.0
December 5	9.0	8.5	2.32	0.0
December 6	3.5	3.0	0.10	0.0
December 7	2.0	1.0	0.00	0.0
December 8	3.0	-1.5	0.00	0.0
December 9	3.5	1.0	0.20	2.0
December 10	-1.0	-4.0	0.00	0.0
December 11	1.5	-6.5	0.00	0.0
December 12	6.0	0.0	0.00	0.0
December 13	3.5	-1.0	0.10	0.0
December 14	10.0	1.0	0.70	0.0
December 15	11.5	1.5	0.70	0.0
December 16	4.0	1.5	0.20	2.0
December 17	-7.0	-10.5	0.00	0.0
December 18	2.0	-15.0	0.00	0.0
December 19	6.0	-9.0	0.00	0.0
December 20	3.0	-8.0	0.00	0.0
December 21	1.5	-9.0	0.00	0.0
December 22	5.0	-1.0	0.10	1.0
December 23	5.0	0.0	0.10	1.0
December 24	-10.0	-14.0	0.10	1.0
December 25	-3.0	-16.0	0.80	8.0
December 26	1.5	-5.5	0.00	0.0
December 27	3.5	-1.5	0.00	0.0
December 28	-5.5	-9.5	0.40	4.0
December 29	-12.0	-18.0	0.10	1.0
December 30	-4.1	-17.0	0.20	2.0
December 31	-1.5	-5.0	0.00	0.0

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Weather Station Details

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