St. Catharines Weather in 2011

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

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2011 St. Catharines Weather Extremes
Highest temperature	34.0 °C	July 21
Lowest temperature	-16.2 °C	January 24
Highest daily low	25.4 °C	July 21
Lowest daily high	-7.1 °C	January 23
Most daily precipitation	3.5 cm	May 25
Total annual precipitation	77.0 cm	-

What was the hottest temperature in St. Catharines in 2011?

The highest temperature recorded in St. Catharines, Ontario in 2011 was 34.0 °C which happened 2 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in St. Catharines in 2011

Rank	Temperature	Date
1	34.0 °C	Jul 21
1	34.0 °C	Jul 20
3	32.3 °C	Jul 23
4	31.7 °C	Jul 18
5	31.6 °C	Jul 17
6	31.5 °C	Jul 11
7	31.3 °C	Jul 31
8	30.6 °C	Aug 1
9	30.3 °C	Aug 2
10	30.1 °C	Jul 22

What was the coldest temperature in St. Catharines in 2011?

The lowest temperature recorded in St. Catharines, Ontario in 2011 was -16.2 °C which happened on Jan 24.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in St. Catharines in 2011

Rank	Temperature	Date
1	-16.2 °C	January 24
2	-15.6 °C	January 23
3	-13.2 °C	January 17
4	-12.1 °C	February 10
5	-11.4 °C	February 3
6	-10.7 °C	February 8
7	-10.6 °C	February 11
7	-10.6 °C	January 22
9	-10.5 °C	February 23
9	-10.5 °C	January 31

January 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
January 1	12.6	2.4	0.46
January 2	2.5	-4.0	0.00
January 3	1.2	-4.0	0.00
January 4	1.7	-0.5	0.03
January 5	0.0	-5.6	0.00
January 6	-1.5	-6.4	0.07
January 7	-2.3	-5.8	0.05
January 8	-1.9	-6.3	0.23
January 9	-2.3	-4.6	0.00
January 10	-2.0	-4.9	0.00
January 11	-2.1	-4.2	0.06
January 12	-4.0	-8.1	0.00
January 13	-3.6	-8.4	0.00
January 14	-1.1	-6.9	0.06
January 15	-0.3	-5.2	0.20
January 16	-2.0	-9.6	0.00
January 17	-1.4	-13.2	0.00
January 18	4.6	-1.5	0.28
January 19	0.9	-7.2	0.06
January 20	-4.2	-8.1	0.08
January 21	-4.3	-9.9	0.00
January 22	-6.5	-10.6	0.00
January 23	-7.1	-15.6	0.00
January 24	-4.8	-16.2	0.03
January 25	0.5	-4.8	0.00
January 26	-0.3	-1.7	0.00
January 27	0.7	-3.1	0.00
January 28	-0.6	-3.0	0.00
January 29	-2.0	-4.1	0.05
January 30	-2.1	-8.7	0.00
January 31	-6.6	-10.5	0.00

February 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
February 1	-3.8	-7.3	0.18
February 2	-2.6	-6.7	0.41
February 3	-1.6	-11.4	0.00
February 4	-1.0	-5.4	0.00
February 5	2.0	-3.4	0.36
February 6	0.5	-2.8	0.03
February 7	0.9	-5.4	0.09
February 8	-5.3	-10.7	0.00
February 9	-4.2	-9.0	0.00
February 10	-6.7	-12.1	0.00
February 11	-1.6	-10.6	0.00
February 12	-0.1	-5.4	0.03
February 13	7.2	-4.7	0.06
February 14	8.2	-5.6	0.00
February 15	-2.7	-8.3	0.00
February 16	5.0	-2.7	0.00
February 17	13.0	0.8	0.35
February 18	10.1	2.5	0.00
February 19	2.6	-4.0	0.00
February 20	-1.9	-5.6	0.27
February 21	-2.3	-8.4	0.00
February 22	-5.4	-8.8	0.00
February 23	-0.4	-10.5	0.00
February 24	1.5	-4.3	0.04
February 25	1.2	-5.8	0.19
February 26	-1.1	-6.1	0.30
February 27	3.7	-2.9	0.07
February 28	2.6	-1.6	1.89

March 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
March 1	2.6	-3.1	0.00
March 2	2.5	-6.7	0.00
March 3	-2.5	-7.6	0.00
March 4	6.2	-3.6	0.03
March 5	8.9	0.8	2.63
March 6	0.8	-3.4	0.52
March 7	-0.4	-5.9	0.00
March 8	0.9	-4.6	0.00
March 9	6.0	-0.1	1.05
March 10	6.9	1.9	1.50
March 11	3.6	0.5	0.21
March 12	5.4	0.7	0.11
March 13	3.0	-0.7	0.00
March 14	1.1	-1.8	0.00
March 15	3.1	-2.6	0.11
March 16	6.2	2.9	0.36
March 17	14.7	3.3	0.00
March 18	13.2	2.6	0.00
March 19	3.2	0.0	0.00
March 20	4.4	-1.9	0.00
March 21	7.0	3.1	0.67
March 22	5.4	1.4	0.00
March 23	1.5	-2.5	0.29
March 24	0.1	-4.0	0.00
March 25	-0.3	-5.5	0.00
March 26	-0.9	-4.6	0.00
March 27	0.1	-3.8	0.00
March 28	2.4	-4.9	0.00
March 29	n/a	n/a	n/a
March 30	4.0	-1.6	0.00
March 31	2.6	1.1	0.14

April 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
April 1	8.5	1.3	0.00
April 2	8.4	1.1	0.00
April 3	9.8	0.4	0.54
April 4	16.5	3.5	1.37
April 5	5.0	2.2	0.00
April 6	5.0	0.3	0.03
April 7	3.0	0.1	0.00
April 8	4.0	0.2	0.00
April 9	6.0	1.3	0.00
April 10	22.3	3.9	0.06
April 11	19.2	5.3	0.00
April 12	7.8	4.5	0.00
April 13	7.4	3.6	1.24
April 14	9.9	4.1	0.00
April 15	4.8	1.7	0.00
April 16	12.5	3.2	1.78
April 17	8.5	1.3	0.21
April 18	3.3	0.4	0.13
April 19	4.4	1.8	0.87
April 20	10.2	2.9	1.27
April 21	7.4	2.2	0.00
April 22	9.6	2.0	0.10
April 23	16.2	4.8	1.11
April 24	8.9	5.9	0.03
April 25	7.0	5.0	1.23
April 26	13.1	5.1	0.68
April 27	25.0	4.7	0.00
April 28	19.2	8.0	0.06
April 29	8.8	4.9	0.00
April 30	11.7	4.5	0.00

May 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
May 1	15.9	7.0	0.45
May 2	14.5	5.9	0.15
May 3	7.6	4.5	1.41
May 4	11.9	5.0	0.00
May 5	16.0	6.3	0.00
May 6	17.2	8.3	0.00
May 7	14.9	7.2	0.10
May 8	13.7	5.9	0.00
May 9	14.1	6.8	0.00
May 10	13.3	8.2	0.00
May 11	14.6	7.8	0.00
May 12	10.2	7.1	0.00
May 13	14.3	7.1	0.00
May 14	11.4	8.9	1.96
May 15	9.7	6.8	1.52
May 16	8.0	6.5	0.21
May 17	10.9	6.6	0.74
May 18	11.4	7.1	2.76
May 19	17.0	7.5	0.00
May 20	20.3	8.8	0.00
May 21	22.9	10.8	0.00
May 22	23.8	11.3	0.03
May 23	23.8	14.6	0.03
May 24	17.5	10.3	0.00
May 25	12.1	8.9	3.47
May 26	18.2	9.1	0.71
May 27	12.0	9.7	0.00
May 28	21.8	9.6	0.00
May 29	19.3	12.5	0.76
May 30	18.5	13.3	0.00
May 31	28.9	12.8	0.00

June 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
June 1	23.2	13.1	0.00
June 2	17.8	11.6	0.00
June 3	23.6	11.1	0.00
June 4	17.7	11.5	1.21
June 5	24.0	11.2	0.00
June 6	22.5	14.7	0.00
June 7	26.1	15.1	0.69
June 8	29.2	19.3	0.00
June 9	26.5	14.3	0.00
June 10	16.7	14.2	0.00
June 11	18.5	15.0	0.00
June 12	18.0	14.5	0.00
June 13	19.2	14.1	n/a
June 14	17.0	13.6	n/a
June 15	23.3	13.5	n/a
June 16	25.8	17.5	n/a
June 17	23.7	16.5	n/a
June 18	26.1	17.4	n/a
June 19	19.4	16.3	n/a
June 20	16.7	12.7	n/a
June 21	20.3	12.9	n/a
June 22	22.5	13.6	1.53
June 23	26.4	16.9	0.19
June 24	23.1	18.2	0.59
June 25	21.6	17.7	0.00
June 26	22.5	17.5	0.00
June 27	23.0	16.5	0.00
June 28	27.3	18.0	0.23
June 29	21.2	15.7	0.00
June 30	25.9	15.0	0.00

July 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
July 1	23.4	15.4	0.00
July 2	28.7	18.4	0.00
July 3	28.8	20.8	0.00
July 4	26.8	19.8	0.00
July 5	28.3	18.1	0.00
July 6	27.1	20.8	0.00
July 7	23.4	19.8	0.00
July 8	24.8	18.5	0.00
July 9	23.9	20.7	0.00
July 10	29.5	19.9	0.00
July 11	31.5	21.6	0.00
July 12	28.3	21.8	0.00
July 13	26.8	19.8	0.00
July 14	25.2	19.2	0.00
July 15	24.1	17.3	0.00
July 16	26.0	17.9	0.00
July 17	31.6	20.2	0.00
July 18	31.7	22.5	0.00
July 19	24.6	22.3	0.00
July 20	34.0	21.5	0.00
July 21	34.0	25.4	0.00
July 22	30.1	23.3	0.00
July 23	32.3	24.2	0.04
July 24	25.3	22.9	0.39
July 25	27.5	20.8	0.00
July 26	26.9	20.7	0.00
July 27	28.1	19.7	0.00
July 28	27.2	21.5	0.06
July 29	28.7	22.6	1.09
July 30	28.3	21.8	0.00
July 31	31.3	21.1	0.00

August 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
August 1	30.6	23.1	0.00
August 2	30.3	20.2	0.00
August 3	25.3	20.2	0.73
August 4	23.2	19.0	0.00
August 5	23.6	18.4	0.00
August 6	25.3	21.3	0.00
August 7	28.8	22.2	0.00
August 8	25.0	21.5	0.00
August 9	23.7	17.9	1.53
August 10	24.8	18.3	0.00
August 11	25.0	18.4	0.00
August 12	27.5	18.3	0.00
August 13	25.3	19.6	0.00
August 14	24.6	20.0	0.00
August 15	24.5	20.7	0.00
August 16	28.7	20.8	0.00
August 17	29.5	19.6	0.00
August 18	29.8	21.8	0.00
August 19	29.1	19.3	0.00
August 20	29.6	20.6	0.00
August 21	25.0	18.5	0.97
August 22	23.5	17.7	0.00
August 23	27.4	17.3	0.00
August 24	28.0	19.4	2.34
August 25	24.8	20.1	0.00
August 26	23.1	19.2	0.00
August 27	24.0	17.2	0.00
August 28	22.9	18.3	0.00
August 29	26.1	14.5	0.00
August 30	26.5	16.8	0.00
August 31	23.6	18.0	0.00

September 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
September 1	25.9	19.0	0.91
September 2	27.7	18.5	0.00
September 3	26.4	22.2	0.18
September 4	25.8	19.2	1.31
September 5	19.8	15.5	0.00
September 6	19.2	13.8	0.00
September 7	19.2	16.7	0.00
September 8	19.0	15.8	0.00
September 9	21.1	16.7	0.00
September 10	21.2	17.0	0.00
September 11	22.7	14.8	0.00
September 12	26.2	18.2	0.00
September 13	26.5	16.0	0.04
September 14	21.5	11.9	0.15
September 15	16.8	11.9	0.00
September 16	15.9	11.5	0.00
September 17	16.7	12.0	0.00
September 18	19.5	10.8	0.00
September 19	19.1	12.3	0.83
September 20	19.9	15.9	0.00
September 21	25.4	15.7	1.28
September 22	23.1	16.5	0.00
September 23	20.1	15.2	1.57
September 24	18.8	14.0	0.00
September 25	20.5	16.4	0.00
September 26	21.7	17.6	0.00
September 27	23.1	18.1	0.00
September 28	20.1	15.8	0.55
September 29	19.6	14.5	0.86
September 30	17.7	10.8	0.91

October 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
October 1	12.9	8.8	0.03
October 2	12.2	7.7	0.63
October 3	14.9	11.3	0.79
October 4	19.5	13.5	0.10
October 5	17.5	10.7	0.00
October 6	16.0	8.9	0.00
October 7	20.1	11.4	0.00
October 8	24.7	14.2	0.00
October 9	26.0	15.0	0.00
October 10	21.4	14.9	0.00
October 11	18.0	14.6	0.00
October 12	18.4	13.4	1.33
October 13	n/a	n/a	n/a
October 14	18.4	11.0	0.22
October 15	12.7	10.7	0.00
October 16	14.0	10.9	0.00
October 17	15.7	9.8	0.00
October 18	16.3	8.9	0.03
October 19	13.4	11.4	0.47
October 20	12.7	8.6	0.89
October 21	10.2	8.7	0.03
October 22	10.6	7.2	0.00
October 23	16.4	6.3	0.04
October 24	14.5	9.9	0.15
October 25	11.5	5.8	0.87
October 26	10.2	5.7	0.45
October 27	6.9	4.4	0.03
October 28	8.6	1.7	0.00
October 29	7.8	3.7	0.00
October 30	11.6	2.5	0.00
October 31	10.9	5.1	0.00

November 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
November 1	14.0	7.0	0.00
November 2	17.4	8.7	0.00
November 3	13.4	6.6	0.00
November 4	9.4	4.3	0.00
November 5	9.4	2.4	0.00
November 6	15.6	5.0	0.00
November 7	15.8	10.6	0.00
November 8	12.1	6.9	0.00
November 9	18.8	6.4	0.27
November 10	9.8	4.5	0.00
November 11	6.2	3.4	0.00
November 12	13.1	3.8	0.00
November 13	17.7	12.4	0.00
November 14	17.3	8.4	0.78
November 15	13.9	7.7	0.00
November 16	11.5	4.9	0.00
November 17	6.2	1.1	0.00
November 18	8.5	0.0	0.00
November 19	14.3	7.5	0.00
November 20	14.7	3.5	0.00
November 21	4.4	0.9	0.00
November 22	6.0	1.1	0.72
November 23	7.7	3.3	1.04
November 24	8.7	2.4	0.00
November 25	13.4	7.6	0.00
November 26	14.5	9.6	0.00
November 27	14.8	7.1	0.37
November 28	7.1	5.4	0.20
November 29	7.7	5.0	2.97
November 30	6.3	1.4	0.10

December 2011 St. Catharines Weather

Day	High (°C)	Low (°C)	Precip. (cm)
December 1	8.7	0.4	0.00
December 2	5.3	1.0	0.09
December 3	7.8	1.1	0.00
December 4	13.9	6.9	0.00
December 5	10.0	2.7	2.56
December 6	4.4	2.9	0.37
December 7	2.9	0.1	0.00
December 8	5.5	1.9	0.00
December 9	3.0	-0.9	0.00
December 10	-0.5	-3.4	0.00
December 11	3.7	-3.9	0.00
December 12	7.6	1.0	0.00
December 13	8.5	0.9	0.00
December 14	11.6	3.5	0.39
December 15	12.4	4.1	0.74
December 16	5.5	1.8	0.00
December 17	1.9	-5.0	0.00
December 18	3.4	-4.7	0.00
December 19	7.2	2.7	0.05
December 20	2.8	-0.8	0.00
December 21	9.7	2.3	0.48
December 22	7.1	3.4	0.11
December 23	3.5	-4.2	0.00
December 24	3.3	-4.6	0.00
December 25	6.3	3.0	0.00
December 26	5.4	2.1	0.00
December 27	4.7	1.7	0.54
December 28	3.6	-6.1	0.00
December 29	0.8	-6.3	0.00
December 30	4.2	0.6	0.26
December 31	6.4	3.2	0.15

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Weather Station Details

Years	Station	Coordinates
1995–2024	Port Weller (AUT)	location
1882–1994	St Catherines	location