Saint John Weather in 2018

Historical record of Saint John, New Brunswick weather for the year 2018 based on NOAA data.

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2018 Saint John Weather Extremes
Highest temperature	31.9 °C	July 4
Lowest temperature	-25.1 °C	January 3
Highest daily low	18.1 °C	August 29
Lowest daily high	-17.7 °C	January 6
Most daily precipitation	6.6 cm	June 28
Most daily snow	19.7 cm	November 16
Total annual precipitation	168.6 cm	-
Total annual snow	258.2 cm	-

What was the hottest temperature in Saint John in 2018?

The highest temperature recorded in Saint John, New Brunswick in 2018 was 31.9 °C which happened on July 4.

Highest Temperatures: All-Time By Year

Highest Temperatures in Saint John in 2018

Rank	Temperature	Date
1	31.9 °C	Jul 4
2	30.9 °C	Jul 5
3	30.4 °C	Aug 6
4	29.3 °C	Aug 3
5	29.0 °C	Aug 7
6	28.6 °C	Aug 8
7	28.4 °C	Aug 5
7	28.4 °C	Jun 30
9	28.2 °C	Aug 1
10	28.1 °C	Jul 31

What was the coldest temperature in Saint John in 2018?

The lowest temperature recorded in Saint John, New Brunswick in 2018 was -25.1 °C which happened on Jan 3.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Saint John in 2018

Rank	Temperature	Date
1	-25.1 °C	January 3
2	-23.9 °C	January 2
3	-22.5 °C	February 3
4	-22.3 °C	January 1
5	-21.8 °C	February 9
6	-21.6 °C	January 7
7	-20.5 °C	January 6
8	-19.4 °C	January 31
9	-19.1 °C	February 4
10	-19.0 °C	February 8
10	-19.0 °C	January 5

January 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
January 1	-14.5	-22.3	0.00	0.0
January 2	-12.4	-23.9	0.00	0.0
January 3	0.4	-25.1	0.20	2.0
January 4	7.7	-0.6	2.28	4.0
January 5	7.7	-19.0	0.12	1.3
January 6	-17.7	-20.5	0.00	0.0
January 7	-11.9	-21.6	0.00	0.0
January 8	1.1	-12.0	0.88	9.0
January 9	1.1	-8.9	0.10	1.1
January 10	3.0	-11.7	0.00	0.0
January 11	7.4	2.8	0.40	0.0
January 12	12.3	6.7	1.28	0.0
January 13	14.8	-7.0	1.08	0.0
January 14	-7.0	-14.1	0.02	0.2
January 15	-7.0	-16.1	0.02	0.0
January 16	-6.4	-12.8	0.06	0.6
January 17	-2.0	-10.2	1.12	14.2
January 18	-2.0	-11.7	0.00	0.0
January 19	-4.7	-15.0	0.00	0.0
January 20	3.7	-9.7	0.10	1.0
January 21	0.3	-10.4	0.00	0.0
January 22	-5.8	-13.0	0.00	0.0
January 23	10.4	-8.2	5.64	10.0
January 24	7.8	-9.2	0.02	0.0
January 25	-7.5	-14.9	0.00	0.0
January 26	-5.7	-16.9	0.00	0.0
January 27	6.1	-16.5	0.08	0.0
January 28	6.9	-2.7	0.32	0.0
January 29	-1.1	-8.3	0.00	0.0
January 30	-6.4	-11.5	0.82	11.0
January 31	-7.0	-19.4	0.05	1.1

February 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
February 1	3.5	-11.3	1.32	8.1
February 2	3.7	-17.2	2.66	13.2
February 3	-14.3	-22.5	0.00	0.0
February 4	5.4	-19.1	2.45	7.2
February 5	8.7	-9.0	2.52	0.0
February 6	-3.9	-14.0	0.21	0.0
February 7	3.3	-16.4	1.96	12.0
February 8	3.3	-19.0	0.04	0.5
February 9	-4.2	-21.8	0.00	0.0
February 10	5.5	-10.0	2.76	0.0
February 11	1.8	-1.5	1.58	0.0
February 12	5.0	-7.3	0.00	0.0
February 13	-6.9	-14.5	0.00	0.0
February 14	2.9	-10.1	0.00	0.0
February 15	5.2	-7.7	0.02	0.0
February 16	6.0	-8.5	0.00	0.0
February 17	-4.4	-11.8	0.00	0.0
February 18	0.5	-9.3	0.02	0.3
February 19	4.7	-12.5	0.32	0.0
February 20	5.5	0.2	0.74	0.0
February 21	9.4	0.5	0.06	0.0
February 22	1.3	-6.9	0.00	0.0
February 23	0.0	-10.9	0.10	1.0
February 24	6.2	-3.5	0.14	0.0
February 25	-1.1	-7.8	0.43	4.2
February 26	4.8	-2.4	0.28	2.0
February 27	5.9	-4.7	0.00	0.0
February 28	9.2	-1.9	0.02	0.0

March 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
March 1	1.2	-1.7	0.14	0.2
March 2	8.9	-0.9	0.00	0.0
March 3	5.6	-0.6	0.00	0.0
March 4	2.5	-1.4	0.02	0.3
March 5	4.8	-1.9	0.06	0.6
March 6	0.9	-1.8	0.06	0.6
March 7	3.2	-1.6	0.00	0.0
March 8	1.9	-1.1	0.54	5.0
March 9	2.1	-1.4	1.58	15.2
March 10	1.2	-1.8	0.48	4.8
March 11	2.5	-2.5	0.44	4.4
March 12	3.6	-4.7	0.00	0.0
March 13	1.5	-3.5	0.84	9.0
March 14	1.6	-0.1	1.66	18.4
March 15	3.2	-3.2	0.60	6.5
March 16	0.8	-5.8	0.00	0.0
March 17	-5.7	-11.8	0.04	0.5
March 18	-4.3	-13.0	0.00	0.0
March 19	-2.3	-13.0	0.00	0.0
March 20	0.2	-11.8	0.00	0.0
March 21	5.0	-13.0	0.00	0.0
March 22	-0.4	-3.2	0.96	9.6
March 23	3.3	-1.7	0.02	0.2
March 24	2.1	-2.5	0.00	0.0
March 25	-0.2	-14.1	0.04	0.6
March 26	3.7	-15.7	0.00	0.0
March 27	8.2	-12.2	0.00	0.0
March 28	3.5	-3.1	0.46	0.0
March 29	9.1	-3.1	0.00	0.0
March 30	7.0	0.9	0.64	0.0
March 31	7.4	-0.3	0.00	0.0

April 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
April 1	6.4	-1.4	0.36	0.0
April 2	3.5	-8.0	0.00	0.0
April 3	6.3	-9.3	0.06	1.0
April 4	8.0	0.0	2.22	0.0
April 5	2.5	-6.3	0.00	0.0
April 6	2.1	-7.9	0.34	3.2
April 7	5.5	-5.5	0.44	4.3
April 8	3.9	-5.8	0.00	0.0
April 9	1.6	-5.8	0.00	0.0
April 10	3.3	-10.9	0.00	0.0
April 11	7.0	-8.7	0.00	0.0
April 12	7.6	-6.5	0.44	0.0
April 13	10.4	0.1	1.54	0.0
April 14	4.7	-4.1	0.23	0.0
April 15	2.3	-5.6	0.00	0.0
April 16	3.9	-3.1	0.32	0.0
April 17	10.1	1.8	2.06	0.0
April 18	6.1	1.1	0.00	0.0
April 19	8.4	1.7	1.06	0.0
April 20	6.3	0.0	0.97	0.0
April 21	10.7	-1.0	0.00	0.0
April 22	12.8	-5.2	0.00	0.0
April 23	14.8	-6.4	0.00	0.0
April 24	12.7	-3.0	0.00	0.0
April 25	16.0	2.4	0.48	0.0
April 26	13.3	5.8	3.30	0.0
April 27	17.0	5.2	0.56	0.0
April 28	12.0	4.4	0.56	0.0
April 29	17.9	4.5	0.28	0.0
April 30	10.1	5.5	2.12	0.0

May 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)
May 1	10.5	-0.9	0.16
May 2	19.8	-0.9	0.18
May 3	13.7	5.0	1.68
May 4	15.9	6.3	0.26
May 5	19.3	2.6	0.16
May 6	15.8	1.8	0.32
May 7	15.6	-1.2	0.02
May 8	14.8	-1.3	0.00
May 9	19.0	4.3	0.00
May 10	14.2	6.0	0.02
May 11	15.0	-1.7	0.02
May 12	11.3	-3.9	0.00
May 13	16.9	-0.9	0.00
May 14	12.3	4.7	0.00
May 15	10.2	6.4	0.83
May 16	13.3	3.0	0.00
May 17	18.0	4.5	0.00
May 18	15.4	-2.0	0.00
May 19	15.9	-2.5	0.60
May 20	18.0	4.1	1.32
May 21	19.3	0.2	0.00
May 22	19.2	-1.1	0.02
May 23	18.9	1.4	0.29
May 24	12.9	0.4	0.24
May 25	19.5	7.4	0.32
May 26	18.5	2.7	0.04
May 27	17.3	-0.9	0.00
May 28	18.2	3.0	0.00
May 29	26.1	3.5	0.00
May 30	19.4	0.9	0.00
May 31	19.8	1.1	0.00

June 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)
June 1	22.7	7.7	0.04
June 2	19.1	5.7	2.88
June 3	14.2	-1.8	0.00
June 4	14.2	-1.2	0.22
June 5	10.5	4.1	0.96
June 6	15.0	3.4	0.04
June 7	17.3	1.6	0.12
June 8	14.5	1.2	0.40
June 9	21.6	2.5	0.04
June 10	16.9	-0.8	0.00
June 11	17.6	-1.1	0.00
June 12	18.2	-0.3	0.00
June 13	23.2	9.9	0.12
June 14	10.5	6.5	1.61
June 15	19.8	4.5	0.04
June 16	25.6	4.1	0.00
June 17	22.8	7.0	0.00
June 18	15.1	11.3	1.91
June 19	22.1	9.0	0.84
June 20	24.2	4.8	0.00
June 21	22.0	7.0	0.24
June 22	21.1	3.7	0.00
June 23	19.5	8.4	0.56
June 24	22.7	11.2	0.87
June 25	13.9	5.3	1.50
June 26	22.2	1.2	0.00
June 27	24.6	4.3	0.00
June 28	17.2	12.5	6.56
June 29	23.8	13.5	0.96
June 30	28.4	11.1	0.54

July 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
July 1	26.4	13.0	0.12	0.0
July 2	26.8	12.1	0.00	0.0
July 3	23.9	12.8	0.00	0.0
July 4	31.9	11.0	0.00	0.0
July 5	30.9	15.5	0.00	0.0
July 6	23.5	15.6	n/a	n/a
July 7	24.1	7.2	0.00	0.0
July 8	24.9	6.5	0.00	0.0
July 9	21.1	12.8	0.00	0.0
July 10	20.3	12.2	0.00	0.0
July 11	26.0	8.9	0.00	0.0
July 12	23.3	8.3	0.00	0.0
July 13	24.0	8.4	0.00	0.0
July 14	24.6	6.7	0.06	0.0
July 15	22.8	11.3	0.00	0.0
July 16	27.8	10.7	0.00	0.0
July 17	23.7	13.4	0.08	0.0
July 18	25.5	13.5	0.18	0.0
July 19	26.3	7.7	0.00	0.0
July 20	27.3	6.6	0.00	0.0
July 21	27.5	7.2	0.00	0.0
July 22	24.6	12.0	0.00	0.0
July 23	22.0	16.4	0.54	0.0
July 24	24.4	16.2	0.00	0.0
July 25	23.8	15.9	0.00	0.0
July 26	20.2	n/a	0.40	0.0
July 27	22.1	15.7	0.10	0.0
July 28	21.1	16.2	0.00	0.0
July 29	23.1	11.0	0.48	0.0
July 30	27.0	9.8	0.00	0.0
July 31	28.1	11.3	0.00	0.0

August 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)
August 1	28.2	10.6	0.00
August 2	20.3	16.1	0.92
August 3	29.3	14.7	0.00
August 4	25.5	16.4	0.14
August 5	28.4	14.2	0.56
August 6	30.4	12.9	0.00
August 7	29.0	15.2	0.54
August 8	28.6	16.8	0.00
August 9	20.8	16.7	6.10
August 10	26.2	8.9	0.00
August 11	25.8	7.0	0.00
August 12	26.4	11.9	0.00
August 13	27.7	10.7	0.00
August 14	25.5	15.2	0.04
August 15	20.7	17.0	0.02
August 16	26.6	n/a	0.00
August 17	22.6	11.7	0.00
August 18	18.2	15.0	1.69
August 19	23.9	13.4	0.00
August 20	23.3	10.4	0.00
August 21	23.4	8.0	0.00
August 22	24.2	13.1	1.02
August 23	21.7	7.9	0.00
August 24	22.3	6.0	0.00
August 25	24.1	10.1	0.00
August 26	22.9	8.2	0.00
August 27	26.4	13.3	0.00
August 28	25.9	11.9	0.02
August 29	26.8	18.1	0.00
August 30	23.5	11.8	0.02
August 31	23.4	10.3	0.00

September 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)
September 1	23.4	11.5	0.00
September 2	20.5	13.3	0.00
September 3	18.5	16.4	0.32
September 4	24.8	9.8	n/a
September 5	26.1	6.6	0.00
September 6	24.1	13.2	0.00
September 7	21.5	4.8	0.00
September 8	18.6	4.1	0.00
September 9	18.6	1.6	0.00
September 10	18.6	1.0	0.00
September 11	18.4	12.8	2.50
September 12	21.4	15.9	0.00
September 13	25.5	8.5	0.00
September 14	25.8	9.2	0.00
September 15	23.3	7.7	0.00
September 16	24.6	9.3	0.00
September 17	20.2	8.7	0.00
September 18	24.4	12.1	0.10
September 19	16.5	9.1	0.26
September 20	16.4	5.7	0.00
September 21	16.4	1.3	0.08
September 22	19.4	0.0	0.28
September 23	16.6	-1.5	0.00
September 24	13.3	-3.3	0.00
September 25	15.4	-3.2	0.28
September 26	17.8	11.7	5.09
September 27	17.4	7.4	0.18
September 28	11.7	9.1	1.81
September 29	18.5	2.0	0.00
September 30	16.4	0.3	0.00

October 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
October 1	14.7	0.7	0.00	0.0
October 2	12.7	0.5	1.70	0.0
October 3	15.8	12.7	2.75	0.0
October 4	14.5	11.4	0.22	0.0
October 5	14.1	2.5	0.00	0.0
October 6	13.5	3.6	0.00	0.0
October 7	14.0	7.4	0.00	0.0
October 8	12.3	4.3	0.16	0.0
October 9	14.5	8.0	0.36	0.0
October 10	16.6	6.8	0.42	0.0
October 11	10.6	5.4	3.34	0.0
October 12	10.8	5.3	0.14	0.0
October 13	7.9	2.9	0.08	0.0
October 14	9.9	-2.8	0.00	0.0
October 15	14.5	-3.2	4.10	0.0
October 16	14.6	1.9	0.32	0.0
October 17	10.2	-2.7	1.24	0.0
October 18	4.7	-1.1	0.02	0.0
October 19	9.8	-2.2	0.00	0.0
October 20	n/a	8.4	n/a	n/a
October 21	9.3	-1.4	0.00	0.0
October 22	5.5	-6.3	0.00	0.0
October 23	6.9	-8.0	0.12	0.0
October 24	5.7	0.7	1.74	0.0
October 25	2.3	-1.7	0.00	0.0
October 26	3.6	-7.5	0.00	0.0
October 27	4.6	-8.4	2.40	0.0
October 28	12.7	4.1	0.90	0.0
October 29	11.7	7.6	0.06	0.0
October 30	9.4	3.2	0.04	0.0
October 31	7.9	1.7	0.10	0.0

November 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
November 1	12.2	6.1	0.24	0.0
November 2	12.7	6.3	1.80	0.0
November 3	16.7	5.8	4.22	0.0
November 4	9.0	-2.8	0.00	0.0
November 5	7.1	-2.3	0.00	0.0
November 6	13.8	6.3	4.54	0.0
November 7	13.9	7.2	0.21	0.0
November 8	10.4	4.0	0.00	0.0
November 9	7.6	1.5	0.00	0.0
November 10	11.0	-0.1	2.46	0.0
November 11	2.6	-3.7	0.00	0.0
November 12	2.0	-6.3	0.00	0.0
November 13	5.8	-6.8	4.26	0.0
November 14	1.5	-9.2	0.00	0.0
November 15	-1.6	-10.3	0.00	0.0
November 16	0.1	-6.3	1.97	19.7
November 17	0.6	-5.2	0.10	1.0
November 18	-0.8	-14.3	0.00	0.0
November 19	1.6	-10.9	0.30	0.0
November 20	1.0	-1.2	0.98	10.0
November 21	-0.3	-10.7	0.26	1.6
November 22	-10.8	-14.5	0.10	1.0
November 23	-5.7	-12.5	0.00	0.0
November 24	4.1	-6.2	0.00	0.0
November 25	3.4	-1.0	0.00	0.0
November 26	1.2	-2.0	0.04	0.2
November 27	5.3	0.6	1.84	0.0
November 28	6.2	0.2	0.14	0.2
November 29	0.7	-0.6	0.32	4.1
November 30	1.6	-8.5	0.00	n/a

December 2018 Saint John Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
December 1	-1.4	-8.1	0.00	0.0
December 2	7.2	-4.2	1.58	2.0
December 3	9.1	-0.8	0.16	0.0
December 4	-0.9	-8.4	0.00	0.0
December 5	-4.1	-13.1	0.00	0.0
December 6	-3.5	-11.0	0.00	0.0
December 7	0.5	-12.5	0.00	0.0
December 8	-7.3	-14.3	0.00	0.0
December 9	-3.2	-15.3	0.00	0.0
December 10	-3.6	-11.8	0.00	0.0
December 11	-4.6	-15.9	0.00	0.0
December 12	-7.6	-14.7	0.00	0.0
December 13	-4.6	-17.2	0.00	0.0
December 14	5.1	-17.3	0.00	0.0
December 15	6.8	-2.2	0.14	0.0
December 16	3.8	-7.8	0.00	0.0
December 17	0.9	-1.3	1.05	4.0
December 18	n/a	n/a	1.00	10.0
December 19	-5.0	-13.2	0.02	0.2
December 20	1.9	-14.5	0.00	0.0
December 21	12.0	-0.6	4.18	0.0
December 22	14.1	0.4	5.09	0.0
December 23	0.4	-7.5	0.00	0.0
December 24	-4.9	-10.1	0.00	0.0
December 25	-8.2	-13.2	0.00	0.0
December 26	-3.8	-14.2	0.00	0.0
December 27	-9.5	-14.2	0.00	0.0
December 28	2.8	-14.0	1.82	11.2
December 29	5.2	-8.7	0.10	0.0
December 30	-8.8	-17.6	0.00	0.0
December 31	0.6	-15.9	0.46	4.6

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Weather Station Details

Years	Station	Coordinates
2012–2024	Saint John	location
1947–2012	Saint John A	location
1871–1946	Saint John	location