London Weather in 1999

Historical record of London, Ontario weather for the year 1999 based on NOAA data.

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Year:

1999 London Weather Extremes
Highest temperature	35.0 °C	July 31
Lowest temperature	-22.1 °C	January 8
Highest daily low	25.0 °C	July 4
Lowest daily high	-13.0 °C	January 5
Most daily precipitation	4.0 cm	November 2
Most daily snow	29.6 cm	November 3
Total annual precipitation	84.3 cm	-
Total annual snow	219.5 cm	-

What was the hottest temperature in London in 1999?

The highest temperature recorded in London, Ontario in 1999 was 35.0 °C which happened on July 31.

Highest Temperatures: All-Time By Year

Highest Temperatures in London in 1999

Rank	Temperature	Date
1	35.0 °C	Jul 31
2	33.3 °C	Jul 5
3	33.1 °C	Jul 4
4	32.7 °C	Jul 30
4	32.7 °C	Jul 24
6	32.1 °C	Jul 16
7	31.4 °C	Jun 10
8	31.3 °C	Sep 3
8	31.3 °C	Jul 17
10	31.2 °C	Jul 28
10	31.2 °C	Jul 23

What was the coldest temperature in London in 1999?

The lowest temperature recorded in London, Ontario in 1999 was -22.1 °C which happened on Jan 8.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in London in 1999

Rank	Temperature	Date
1	-22.1 °C	January 8
2	-21.5 °C	March 8
3	-21.2 °C	January 13
4	-21.0 °C	January 1
5	-20.9 °C	January 14
6	-18.9 °C	March 7
7	-18.5 °C	January 11
8	-18.2 °C	January 2
9	-17.9 °C	January 5
10	-16.8 °C	January 10

January 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
January 1	-11.2	-21.0	0.18	2.6
January 2	-7.8	-18.2	2.44	24.4
January 3	1.6	-11.6	0.64	6.4
January 4	-10.8	-14.7	0.10	1.0
January 5	-13.0	-17.9	0.00	0.0
January 6	-4.0	-13.5	0.32	4.6
January 7	-9.9	-16.6	0.04	0.4
January 8	-8.1	-22.1	0.52	5.4
January 9	-6.0	-12.6	0.29	5.8
January 10	-11.0	-16.8	0.06	0.6
January 11	-5.2	-18.5	0.66	8.0
January 12	-5.2	-8.7	0.60	8.2
January 13	-8.1	-21.2	0.62	8.0
January 14	-12.5	-20.9	0.12	1.2
January 15	-8.4	-14.3	0.32	4.6
January 16	1.7	-8.4	0.02	0.2
January 17	2.8	-11.9	0.60	0.0
January 18	5.5	-1.1	0.66	0.6
January 19	-0.6	-5.6	0.02	0.4
January 20	-0.7	-9.3	0.00	0.0
January 21	4.4	-8.8	0.00	0.0
January 22	4.3	0.1	1.51	0.0
January 23	9.9	3.2	1.64	0.0
January 24	3.4	-1.1	0.00	0.0
January 25	0.0	-2.5	0.46	6.0
January 26	-0.8	-8.7	0.00	0.0
January 27	1.0	-8.8	0.00	0.0
January 28	1.9	-2.8	0.20	0.8
January 29	-1.9	-5.1	0.00	0.0
January 30	0.6	-6.9	0.00	0.0
January 31	-0.7	-7.2	0.00	0.0

February 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
February 1	2.1	-6.8	0.18	0.0
February 2	4.5	-0.2	0.68	0.0
February 3	4.8	-1.1	0.00	0.0
February 4	3.6	-5.4	0.04	0.0
February 5	-1.2	-8.8	0.06	1.8
February 6	3.7	-3.5	0.00	0.0
February 7	0.0	-5.9	0.30	3.0
February 8	0.1	-9.8	0.00	0.0
February 9	9.6	-1.0	0.00	0.0
February 10	6.4	-1.7	0.00	0.0
February 11	15.8	-0.6	0.04	0.0
February 12	14.4	-7.3	0.69	2.0
February 13	-2.2	-9.7	0.32	7.6
February 14	-0.5	-9.5	0.00	0.0
February 15	5.2	-2.5	0.00	0.0
February 16	7.7	-0.4	0.76	0.0
February 17	4.8	-1.2	0.02	0.2
February 18	-1.1	-4.7	0.02	0.2
February 19	-2.1	-8.0	0.00	0.0
February 20	-2.7	-9.1	0.00	0.0
February 21	-4.3	-11.6	0.00	0.0
February 22	-4.7	-14.7	0.00	0.0
February 23	-4.4	-12.9	0.00	0.0
February 24	2.2	-9.2	0.06	0.6
February 25	0.8	-7.2	0.28	4.0
February 26	1.5	-9.0	0.00	0.0
February 27	4.8	-6.1	0.22	0.0
February 28	6.0	0.7	1.62	0.6

March 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
March 1	0.7	-2.9	0.32	3.8
March 2	4.2	-3.2	0.36	5.0
March 3	0.9	-3.8	1.10	12.2
March 4	-3.5	-12.7	0.08	2.0
March 5	-2.9	-14.0	0.36	5.2
March 6	-4.1	-12.6	1.14	11.4
March 7	-6.7	-18.9	0.00	0.0
March 8	-4.9	-21.5	0.00	0.0
March 9	-4.3	-7.2	0.10	1.0
March 10	-2.6	-8.8	0.00	0.0
March 11	0.1	-9.2	0.00	0.0
March 12	-0.1	-6.5	0.00	0.0
March 13	2.2	-10.9	0.00	0.0
March 14	2.1	-6.1	0.00	0.0
March 15	3.6	-6.9	0.00	0.0
March 16	5.8	-3.1	0.00	0.0
March 17	12.3	-1.4	0.00	0.0
March 18	7.3	-0.6	0.08	0.4
March 19	2.7	-3.6	0.08	0.8
March 20	6.4	-5.0	0.00	0.0
March 21	5.7	-1.0	0.00	0.0
March 22	1.2	-3.0	0.30	3.4
March 23	5.5	-5.1	0.00	0.0
March 24	3.7	-2.4	0.00	0.0
March 25	1.3	-2.5	0.00	0.0
March 26	6.4	-3.9	0.00	0.0
March 27	11.3	-3.3	0.00	0.0
March 28	15.9	-2.5	0.00	0.0
March 29	13.0	1.1	0.00	0.0
March 30	15.0	-2.6	0.00	0.0
March 31	20.2	5.6	0.00	0.0

April 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
April 1	14.5	9.6	0.06	0.0
April 2	16.6	7.3	0.00	0.0
April 3	22.9	7.3	0.00	0.0
April 4	15.3	0.8	1.14	0.0
April 5	10.3	0.9	0.00	0.0
April 6	18.8	3.6	0.26	0.0
April 7	15.3	3.3	0.27	0.0
April 8	16.5	7.1	0.00	0.0
April 9	8.3	2.1	0.64	0.0
April 10	11.3	0.0	0.00	0.0
April 11	4.6	0.9	0.28	0.0
April 12	8.8	-1.4	0.00	0.0
April 13	12.2	-1.5	0.00	0.0
April 14	15.8	0.2	0.00	0.0
April 15	16.4	0.2	0.00	0.0
April 16	7.6	3.3	0.84	0.0
April 17	11.3	3.0	0.11	0.0
April 18	10.2	1.6	0.02	0.0
April 19	10.3	0.3	0.38	0.4
April 20	11.7	0.5	0.00	0.0
April 21	14.7	1.1	0.04	0.0
April 22	8.8	6.3	2.44	0.0
April 23	9.8	1.3	0.20	0.0
April 24	10.8	-2.0	0.00	0.0
April 25	15.4	-2.0	0.00	0.0
April 26	17.8	4.5	0.00	0.0
April 27	15.2	1.3	0.00	0.0
April 28	15.4	4.2	0.00	0.0
April 29	19.2	2.7	0.00	0.0
April 30	21.5	3.7	0.00	0.0

May 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)
May 1	23.2	5.3	0.00
May 2	24.0	5.7	0.00
May 3	24.5	9.8	0.00
May 4	24.8	9.4	0.00
May 5	27.2	9.8	0.00
May 6	26.1	13.3	0.00
May 7	22.9	10.3	0.00
May 8	20.3	11.1	0.56
May 9	12.5	3.7	0.00
May 10	19.6	2.0	0.00
May 11	20.1	6.7	0.00
May 12	15.5	4.9	0.14
May 13	18.1	3.8	0.00
May 14	22.5	8.1	0.00
May 15	22.9	11.5	0.00
May 16	22.6	11.4	0.00
May 17	27.5	15.0	0.02
May 18	23.8	14.4	0.12
May 19	15.6	5.6	0.00
May 20	21.4	3.8	0.00
May 21	23.8	6.0	0.00
May 22	18.2	12.9	0.64
May 23	20.2	10.3	0.06
May 24	14.4	6.7	1.88
May 25	10.2	5.9	1.10
May 26	13.6	5.2	0.16
May 27	22.5	3.8	0.00
May 28	27.4	9.7	0.00
May 29	28.7	10.8	0.00
May 30	29.4	11.8	0.00
May 31	24.8	14.4	0.35

June 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)
June 1	23.0	17.4	1.85
June 2	23.7	13.8	1.85
June 3	13.8	8.5	0.00
June 4	21.0	6.6	0.00
June 5	24.3	11.7	0.00
June 6	30.2	17.8	0.00
June 7	30.5	19.7	0.00
June 8	28.5	17.1	0.00
June 9	28.6	13.7	0.00
June 10	31.4	18.5	0.00
June 11	29.7	19.0	0.00
June 12	29.6	20.1	0.00
June 13	27.7	19.1	0.00
June 14	21.3	10.8	2.60
June 15	16.0	7.6	0.00
June 16	17.9	8.0	0.00
June 17	16.1	9.0	0.04
June 18	21.7	6.2	0.02
June 19	23.2	8.7	0.00
June 20	24.5	13.3	0.00
June 21	26.4	12.1	0.00
June 22	27.2	13.3	0.00
June 23	27.7	14.5	0.00
June 24	28.6	18.8	0.40
June 25	29.5	17.2	0.12
June 26	30.1	14.5	0.00
June 27	27.5	20.0	1.42
June 28	28.1	21.0	0.48
June 29	21.0	10.6	1.42
June 30	22.3	10.1	0.00

July 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)
July 1	26.0	12.1	0.52
July 2	28.1	17.7	0.00
July 3	30.0	17.7	0.04
July 4	33.1	25.0	0.00
July 5	33.3	24.4	0.00
July 6	30.1	17.8	0.02
July 7	27.9	13.8	0.00
July 8	23.5	14.1	0.28
July 9	27.7	15.6	0.30
July 10	22.1	11.4	0.06
July 11	24.2	9.8	0.00
July 12	26.3	11.1	0.00
July 13	26.0	13.7	0.00
July 14	28.8	15.2	0.00
July 15	31.0	19.6	0.00
July 16	32.1	19.0	0.00
July 17	31.3	20.2	0.57
July 18	29.9	18.2	0.34
July 19	23.4	17.7	0.72
July 20	27.3	15.3	0.00
July 21	25.5	17.8	0.00
July 22	29.7	18.7	0.00
July 23	31.2	15.0	0.08
July 24	32.7	18.6	0.28
July 25	29.3	17.2	0.00
July 26	29.5	16.9	0.00
July 27	30.5	18.2	0.00
July 28	31.2	15.2	0.32
July 29	30.5	17.1	0.00
July 30	32.7	18.9	0.00
July 31	35.0	18.1	1.60

August 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)
August 1	26.1	15.7	0.00
August 2	25.4	12.8	0.00
August 3	26.2	11.3	0.00
August 4	25.7	13.8	0.00
August 5	23.8	12.2	0.14
August 6	24.3	10.8	0.00
August 7	25.8	9.1	1.26
August 8	22.6	10.6	0.00
August 9	22.3	8.6	0.06
August 10	22.9	13.8	0.42
August 11	25.1	15.0	0.00
August 12	28.0	15.0	0.02
August 13	27.6	19.2	1.52
August 14	22.2	13.7	0.00
August 15	24.1	11.1	0.00
August 16	25.3	11.7	0.00
August 17	28.3	16.5	0.00
August 18	22.7	12.8	0.00
August 19	23.2	12.3	0.14
August 20	23.6	14.7	0.00
August 21	23.5	12.6	0.00
August 22	26.5	10.2	0.00
August 23	26.3	11.4	0.00
August 24	29.4	18.3	0.16
August 25	22.4	18.7	0.44
August 26	20.4	18.3	1.22
August 27	26.9	15.7	0.00
August 28	30.4	16.4	0.00
August 29	20.4	9.8	0.00
August 30	21.7	7.9	0.00
August 31	24.5	8.8	0.00

September 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)
September 1	28.7	9.2	0.00
September 2	29.9	8.8	0.00
September 3	31.3	12.0	0.00
September 4	30.5	13.5	0.00
September 5	26.1	18.4	0.17
September 6	29.0	19.5	0.20
September 7	24.7	16.3	0.00
September 8	27.4	13.7	0.00
September 9	26.3	12.9	0.04
September 10	19.3	11.6	0.00
September 11	21.8	11.2	0.00
September 12	28.0	10.7	0.00
September 13	23.6	12.6	0.90
September 14	20.6	7.9	0.00
September 15	22.5	5.5	0.00
September 16	20.7	10.7	0.00
September 17	21.3	6.9	0.00
September 18	22.3	4.1	0.00
September 19	25.3	8.1	0.00
September 20	17.6	7.7	0.08
September 21	14.7	1.6	0.00
September 22	17.9	-0.2	0.00
September 23	25.3	9.1	0.00
September 24	19.8	8.3	0.42
September 25	19.1	4.3	0.00
September 26	27.2	8.2	0.00
September 27	26.8	15.7	0.00
September 28	26.9	18.1	0.00
September 29	22.1	10.6	2.54
September 30	15.7	9.0	0.68

October 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)
October 1	16.2	5.5	0.00
October 2	13.4	5.8	0.56
October 3	11.8	3.1	1.28
October 4	8.3	0.8	0.00
October 5	13.4	0.7	0.14
October 6	10.9	-0.7	0.00
October 7	10.9	-3.0	0.00
October 8	17.0	2.5	0.76
October 9	18.4	12.2	0.06
October 10	20.7	10.1	0.00
October 11	17.2	3.2	0.00
October 12	15.3	1.8	0.00
October 13	20.3	4.8	1.97
October 14	11.1	2.0	0.00
October 15	16.0	2.4	0.00
October 16	21.4	11.9	0.00
October 17	12.3	4.9	0.00
October 18	9.4	0.5	0.00
October 19	11.2	0.2	0.16
October 20	11.7	3.7	0.00
October 21	13.0	-0.1	0.00
October 22	13.0	4.1	0.56
October 23	5.8	3.2	1.04
October 24	6.2	1.6	0.03
October 25	13.1	0.4	0.00
October 26	13.5	4.9	0.00
October 27	9.0	0.3	0.00
October 28	16.7	0.3	0.00
October 29	20.4	4.7	0.00
October 30	22.0	9.1	0.00
October 31	16.6	3.5	0.22

November 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
November 1	18.9	2.2	0.00	0.0
November 2	15.5	0.4	3.96	6.3
November 3	1.9	-0.3	3.00	29.6
November 4	8.7	-2.0	0.00	0.0
November 5	14.8	6.3	0.00	0.0
November 6	9.8	1.4	0.00	0.0
November 7	7.2	-0.3	0.00	0.0
November 8	11.8	-0.8	0.00	0.0
November 9	21.3	5.9	0.00	0.0
November 10	15.0	2.4	0.22	0.0
November 11	3.1	-2.1	0.00	0.0
November 12	6.9	-2.1	0.00	0.0
November 13	13.3	5.5	0.00	0.0
November 14	13.5	2.3	0.02	0.0
November 15	3.1	-2.3	0.04	0.2
November 16	0.5	-3.8	0.00	0.0
November 17	4.6	-6.2	0.00	0.0
November 18	8.8	-2.9	0.00	0.0
November 19	14.2	5.5	0.30	0.0
November 20	11.6	5.3	0.14	0.0
November 21	11.6	6.0	0.00	0.0
November 22	17.9	9.5	0.00	0.0
November 23	18.2	9.4	0.00	0.0
November 24	15.0	4.6	0.64	0.0
November 25	7.1	-0.4	0.00	0.0
November 26	6.1	3.3	1.30	0.0
November 27	7.7	0.7	0.00	0.0
November 28	5.5	-0.7	0.04	0.4
November 29	1.8	-8.0	0.42	4.2
November 30	-2.2	-11.8	0.00	0.0

December 1999 London Weather

Day	High (°C)	Low (°C)	Precip. (cm)	Snow (cm)
December 1	1.2	-12.7	0.00	0.0
December 2	8.3	1.2	0.00	0.0
December 3	11.4	7.8	0.54	0.0
December 4	11.8	7.7	0.30	0.0
December 5	12.4	3.9	1.98	0.0
December 6	4.0	2.2	0.20	0.0
December 7	2.2	-2.7	0.00	0.0
December 8	7.4	-1.9	0.00	0.0
December 9	10.1	-1.7	0.02	0.0
December 10	7.6	0.7	0.60	1.2
December 11	1.7	-4.5	0.00	0.0
December 12	3.6	-4.1	0.00	0.0
December 13	5.5	-0.4	0.16	1.6
December 14	1.6	0.1	2.35	5.4
December 15	6.0	0.1	0.86	0.2
December 16	2.0	-3.5	0.20	2.0
December 17	-2.5	-5.5	0.00	0.0
December 18	-1.0	-7.1	0.00	0.0
December 19	2.3	-6.5	0.00	0.0
December 20	7.1	-5.1	0.66	0.0
December 21	-4.6	-9.3	0.00	0.0
December 22	-6.3	-11.3	0.00	0.0
December 23	-7.0	-11.4	0.00	0.0
December 24	-5.4	-12.7	0.22	2.2
December 25	-3.1	-10.1	0.06	0.6
December 26	-1.5	-5.9	0.14	2.2
December 27	-4.4	-13.4	0.26	4.2
December 28	-5.0	-14.0	0.14	3.2
December 29	1.8	-10.4	0.08	1.2
December 30	3.0	-9.1	0.00	0.0
December 31	1.8	-13.7	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
2002–2024	London CS	location
1941–2002	London International Airport	location
1932–1940	London Lambeth A	location
1883–1931	London South	location