Hamilton Weather in 1999

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

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1999 Hamilton Weather Extremes
Highest temperature	35.4 °C	July 5
Lowest temperature	-20.6 °C	January 14
Highest daily low	25.8 °C	July 6
Lowest daily high	-12.6 °C	January 13
Most daily precipitation	5.4 cm	November 2
Total annual precipitation	76.3 cm	-

What was the hottest temperature in Hamilton in 1999?

The highest temperature recorded in Hamilton, Ontario in 1999 was 35.4 °C which happened on July 5.

Highest Temperatures: All-Time By Year

Highest Temperatures in Hamilton in 1999

Rank	Temperature	Date
1	35.4 °C	Jul 5
2	35.2 °C	Jul 30
3	34.4 °C	Jul 4
4	34.3 °C	Jul 17
5	33.9 °C	Jul 23
5	33.9 °C	Jul 16
7	33.5 °C	Jul 24
8	33.4 °C	Jun 7
9	33.2 °C	Jul 27
10	33.0 °C	Jul 15
10	33.0 °C	Jun 26

What was the coldest temperature in Hamilton in 1999?

The lowest temperature recorded in Hamilton, Ontario in 1999 was -20.6 °C which happened on Jan 14.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Hamilton in 1999

Rank	Temperature	Date
1	-20.6 °C	January 14
2	-18.1 °C	March 8
3	-17.5 °C	January 13
4	-17.2 °C	January 2
5	-17.0 °C	January 8
6	-16.9 °C	January 10
7	-16.5 °C	January 11
8	-15.8 °C	January 6
9	-15.7 °C	January 5
10	-15.5 °C	February 22

January 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
January 1	-10.9	-13.1	0.00
January 2	-3.1	-17.2	3.00
January 3	-1.5	-8.4	0.07
January 4	-7.2	-12.3	0.00
January 5	-7.6	-15.7	0.00
January 6	-2.6	-15.8	0.06
January 7	-8.8	-13.8	0.00
January 8	-6.0	-17.0	0.56
January 9	-2.8	-7.7	0.07
January 10	-7.6	-16.9	0.00
January 11	-6.6	-16.5	0.35
January 12	-3.0	-13.2	0.72
January 13	-12.6	-17.5	0.15
January 14	-10.2	-20.6	0.91
January 15	-3.4	-14.9	0.08
January 16	2.6	-14.2	0.00
January 17	6.1	-3.7	0.74
January 18	6.9	-1.8	0.07
January 19	0.3	-0.7	0.00
January 20	2.8	-4.6	0.00
January 21	5.4	-8.1	0.27
January 22	3.1	0.6	1.68
January 23	12.2	1.2	0.64
January 24	2.9	1.2	0.18
January 25	3.6	-1.5	0.14
January 26	0.6	-2.0	0.00
January 27	2.2	-7.1	0.26
January 28	-0.5	-1.8	0.21
January 29	0.5	-7.0	0.00
January 30	3.1	-4.8	0.00
January 31	-0.2	-6.4	0.00

February 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
February 1	2.6	-11.2	0.15
February 2	5.3	0.2	0.27
February 3	7.3	-0.3	0.00
February 4	5.9	0.0	0.09
February 5	1.8	-7.7	0.08
February 6	4.8	-2.5	0.00
February 7	1.5	-0.7	0.07
February 8	4.2	-7.4	0.00
February 9	10.1	-1.2	0.00
February 10	6.2	-2.0	0.00
February 11	14.9	-3.6	0.40
February 12	3.3	-0.6	0.42
February 13	-1.8	-8.1	0.07
February 14	1.2	-13.1	0.00
February 15	6.9	-3.4	0.00
February 16	11.5	-3.2	0.48
February 17	5.2	2.0	0.00
February 18	0.6	-1.2	0.00
February 19	-0.8	-7.5	0.00
February 20	-0.1	-9.7	0.00
February 21	-1.3	-9.1	0.00
February 22	-5.7	-15.5	0.00
February 23	-4.0	-15.1	0.00
February 24	0.6	-8.5	0.00
February 25	1.9	-1.9	0.07
February 26	6.6	-5.3	0.00
February 27	4.2	-6.9	1.32
February 28	8.2	1.7	0.13

March 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
March 1	4.5	1.0	0.00
March 2	5.5	-2.6	0.42
March 3	1.4	-0.3	1.32
March 4	-0.8	-3.8	0.00
March 5	-2.3	-9.2	0.61
March 6	-8.0	-9.1	0.28
March 7	-3.2	-15.0	0.00
March 8	-0.8	-18.1	0.00
March 9	-2.2	-10.7	0.06
March 10	1.9	-7.4	0.00
March 11	5.9	-10.4	0.00
March 12	4.8	-7.2	0.00
March 13	4.2	-5.3	0.00
March 14	3.1	-5.0	0.00
March 15	7.0	-4.9	0.00
March 16	7.4	-2.3	0.00
March 17	14.4	1.0	0.00
March 18	5.9	3.3	0.00
March 19	5.4	-0.1	0.00
March 20	8.8	-4.9	0.00
March 21	8.1	-1.5	0.00
March 22	3.6	-0.7	0.00
March 23	7.5	-3.2	0.00
March 24	8.2	0.9	0.00
March 25	5.0	-2.7	0.00
March 26	8.6	-4.8	0.00
March 27	9.6	-4.9	0.00
March 28	15.6	-3.1	0.00
March 29	14.9	4.3	0.00
March 30	16.9	-0.3	0.00
March 31	21.8	8.0	0.06

April 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
April 1	15.4	10.9	0.00
April 2	5.6	4.2	0.00
April 3	13.2	4.5	n/a
April 4	5.6	3.0	0.00
April 5	7.1	1.7	0.00
April 6	17.0	1.5	n/a
April 7	17.3	5.1	0.00
April 8	18.3	8.8	0.00
April 9	6.7	3.0	n/a
April 10	8.5	-0.3	0.00
April 11	4.7	0.0	n/a
April 12	11.0	0.5	0.00
April 13	15.3	-1.3	0.00
April 14	19.1	3.6	0.00
April 15	12.8	2.2	0.16
April 16	9.3	3.6	0.40
April 17	12.1	4.3	0.08
April 18	13.4	1.8	0.08
April 19	12.4	4.0	0.08
April 20	13.6	3.0	0.00
April 21	14.9	1.6	0.92
April 22	9.6	5.8	1.90
April 23	8.2	4.9	0.00
April 24	13.3	-1.3	0.00
April 25	16.8	-1.3	0.00
April 26	20.9	6.6	0.00
April 27	9.6	4.1	0.00
April 28	13.1	3.0	0.00
April 29	16.7	0.5	0.00
April 30	20.6	2.0	0.00

May 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
May 1	21.6	2.8	0.00
May 2	22.4	3.7	0.00
May 3	18.7	4.9	0.00
May 4	24.7	7.6	0.00
May 5	18.9	7.8	0.08
May 6	20.5	10.6	0.00
May 7	25.2	11.2	0.14
May 8	22.5	10.1	0.52
May 9	15.0	8.0	0.00
May 10	18.6	2.9	0.00
May 11	14.4	6.3	0.00
May 12	14.9	2.6	0.00
May 13	13.9	3.4	0.00
May 14	16.1	7.9	0.00
May 15	19.0	7.1	0.00
May 16	20.8	7.0	0.00
May 17	24.4	9.8	0.00
May 18	28.3	12.6	1.86
May 19	18.5	9.4	0.00
May 20	22.8	3.3	0.00
May 21	23.6	7.1	0.00
May 22	20.2	10.3	0.22
May 23	17.3	11.9	1.32
May 24	17.2	11.3	0.60
May 25	13.0	7.9	0.24
May 26	14.5	9.0	0.00
May 27	23.0	5.9	0.00
May 28	29.1	10.8	0.00
May 29	29.6	10.5	0.00
May 30	31.3	14.1	0.00
May 31	27.2	14.1	1.24

June 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
June 1	25.4	17.9	1.18
June 2	24.6	18.8	0.52
June 3	18.3	13.7	0.00
June 4	21.7	7.5	0.00
June 5	25.2	7.6	0.00
June 6	31.6	13.0	0.00
June 7	33.4	21.5	0.00
June 8	29.7	19.9	0.00
June 9	26.8	14.0	0.00
June 10	21.5	17.1	0.00
June 11	25.7	15.6	0.00
June 12	27.7	16.4	0.00
June 13	29.4	15.1	0.00
June 14	23.0	16.2	0.90
June 15	18.7	7.2	0.00
June 16	16.5	n/a	0.02
June 17	20.2	9.9	0.46
June 18	24.0	7.4	0.00
June 19	23.9	9.1	0.00
June 20	24.3	11.3	0.00
June 21	25.8	10.8	0.00
June 22	26.0	9.6	0.00
June 23	29.6	12.5	0.00
June 24	27.2	15.4	0.54
June 25	31.1	18.6	0.00
June 26	33.0	15.5	0.00
June 27	26.1	17.0	0.58
June 28	31.2	21.0	0.48
June 29	23.6	18.0	0.00
June 30	21.8	9.5	0.00

July 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
July 1	25.1	11.4	0.50
July 2	29.1	18.8	0.00
July 3	30.5	16.3	0.00
July 4	34.4	25.1	0.00
July 5	35.4	24.0	0.00
July 6	32.7	25.8	0.00
July 7	29.1	14.9	0.00
July 8	26.1	15.2	0.20
July 9	28.4	15.1	0.38
July 10	24.0	16.4	0.00
July 11	26.5	10.0	0.00
July 12	24.7	11.6	0.00
July 13	28.0	11.4	0.00
July 14	30.4	12.2	0.00
July 15	33.0	17.5	0.00
July 16	33.9	20.5	0.00
July 17	34.3	21.1	1.70
July 18	32.6	19.5	0.00
July 19	24.7	19.9	0.84
July 20	24.5	15.4	0.00
July 21	24.3	16.0	0.00
July 22	32.4	17.1	0.00
July 23	33.9	18.5	1.16
July 24	33.5	20.3	0.02
July 25	31.3	17.4	0.00
July 26	32.0	17.9	0.00
July 27	33.2	19.1	0.00
July 28	32.0	14.6	0.00
July 29	32.0	18.7	0.00
July 30	35.2	20.9	0.00
July 31	30.3	20.9	3.20

August 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
August 1	28.5	16.7	0.00
August 2	26.1	13.8	0.00
August 3	27.1	12.6	0.02
August 4	22.9	17.6	0.38
August 5	26.2	14.2	0.00
August 6	26.5	11.6	0.00
August 7	23.3	10.1	0.84
August 8	25.6	17.9	0.00
August 9	23.5	10.7	0.00
August 10	20.0	14.2	0.14
August 11	27.3	15.0	0.00
August 12	30.1	15.4	0.22
August 13	28.6	20.6	1.64
August 14	21.1	16.2	0.00
August 15	24.1	10.1	0.00
August 16	26.4	13.0	0.00
August 17	29.8	19.6	0.00
August 18	25.6	15.5	0.00
August 19	22.6	12.7	0.18
August 20	20.4	15.7	1.02
August 21	22.8	16.7	0.00
August 22	26.6	12.3	0.00
August 23	27.1	12.5	0.06
August 24	27.6	17.9	0.58
August 25	23.7	19.1	0.12
August 26	22.3	19.8	0.24
August 27	28.8	18.2	0.00
August 28	32.3	17.9	0.00
August 29	22.4	12.2	0.00
August 30	19.0	10.3	0.00
August 31	22.8	7.2	0.00

September 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
September 1	25.5	9.2	0.00
September 2	31.4	9.8	0.00
September 3	30.7	11.8	0.00
September 4	26.7	13.6	0.00
September 5	26.0	17.3	0.00
September 6	28.7	20.0	2.66
September 7	25.6	18.9	0.34
September 8	27.2	18.2	0.60
September 9	26.4	18.0	0.32
September 10	20.9	11.8	0.00
September 11	23.1	12.4	0.00
September 12	27.0	7.9	0.00
September 13	20.7	17.1	0.74
September 14	22.6	10.4	0.00
September 15	23.3	6.6	0.00
September 16	20.3	11.5	0.00
September 17	22.7	7.3	0.00
September 18	23.7	7.6	0.00
September 19	25.3	7.3	0.00
September 20	20.5	13.5	0.08
September 21	15.6	5.8	0.00
September 22	17.8	1.2	0.00
September 23	25.3	8.3	0.36
September 24	20.2	11.1	0.02
September 25	17.1	5.6	0.00
September 26	19.2	5.0	0.00
September 27	27.4	11.7	0.00
September 28	29.2	17.2	0.06
September 29	21.4	20.1	5.32
September 30	17.0	10.5	0.00

October 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
October 1	17.5	10.1	0.00
October 2	15.1	4.6	0.32
October 3	12.7	3.0	1.36
October 4	8.4	3.4	0.02
October 5	14.3	-0.2	0.02
October 6	10.9	7.7	0.00
October 7	8.1	-2.9	0.00
October 8	18.8	-0.4	0.54
October 9	20.6	13.2	0.00
October 10	21.4	11.8	0.02
October 11	18.7	6.2	0.00
October 12	16.4	2.3	0.06
October 13	21.6	6.9	4.26
October 14	12.4	2.3	0.00
October 15	17.1	2.3	0.00
October 16	23.9	7.5	0.18
October 17	12.1	10.7	0.18
October 18	9.7	3.1	0.00
October 19	10.4	-0.8	0.00
October 20	13.8	3.9	0.00
October 21	13.9	1.8	1.82
October 22	13.6	8.7	0.14
October 23	9.3	3.9	0.00
October 24	9.0	2.6	0.00
October 25	14.8	2.5	0.00
October 26	16.0	8.1	0.00
October 27	8.6	3.3	0.00
October 28	18.5	-2.1	0.00
October 29	12.2	2.8	0.00
October 30	20.1	5.9	0.02
October 31	19.4	13.9	0.00

November 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
November 1	19.0	2.3	0.02
November 2	11.7	6.1	5.42
November 3	2.7	0.7	0.20
November 4	9.4	1.3	0.00
November 5	16.7	5.9	0.00
November 6	10.8	2.3	0.00
November 7	7.0	-2.0	0.00
November 8	12.2	0.1	0.00
November 9	22.3	5.1	0.00
November 10	15.9	13.8	0.26
November 11	2.1	-0.2	0.00
November 12	8.2	-1.6	0.00
November 13	14.5	5.9	0.00
November 14	9.9	6.6	0.00
November 15	5.7	2.9	0.00
November 16	2.7	-4.4	0.00
November 17	4.8	-5.9	0.00
November 18	9.3	-2.8	0.00
November 19	16.3	0.7	0.50
November 20	9.5	7.9	0.02
November 21	11.8	5.7	0.00
November 22	19.1	6.4	0.00
November 23	16.8	7.3	0.20
November 24	11.8	7.0	0.00
November 25	8.0	0.2	0.66
November 26	7.0	3.6	0.90
November 27	10.4	3.2	0.00
November 28	6.8	1.1	0.00
November 29	3.8	-0.8	0.02
November 30	0.1	-5.9	0.00

December 1999 Hamilton Weather

Day	High (°C)	Low (°C)	Precip. (cm)
December 1	3.0	-10.2	0.00
December 2	9.7	-2.5	0.00
December 3	13.1	4.2	0.07
December 4	13.8	8.9	0.00
December 5	15.2	9.5	0.78
December 6	5.7	4.3	0.00
December 7	3.5	0.8	0.00
December 8	8.2	-3.6	0.00
December 9	12.3	-0.9	0.16
December 10	8.7	3.7	0.18
December 11	3.4	-0.2	0.00
December 12	3.2	-6.1	0.13
December 13	4.6	0.1	0.17
December 14	4.3	0.5	2.23
December 15	9.6	0.7	0.33
December 16	4.8	1.8	0.00
December 17	-0.3	-3.7	0.00
December 18	-0.1	-5.9	0.00
December 19	5.4	-5.6	0.00
December 20	8.6	0.4	0.18
December 21	-3.7	-6.0	0.00
December 22	-4.5	-9.8	0.00
December 23	-5.6	-7.1	0.00
December 24	-3.5	-13.3	0.00
December 25	0.0	-11.9	0.00
December 26	0.5	-3.7	0.00
December 27	-3.7	-6.1	0.00
December 28	-3.7	-13.8	0.00
December 29	4.3	-11.7	0.00
December 30	3.1	-1.8	0.00
December 31	2.1	-8.0	0.00

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Weather Station Details

Years	Station	Coordinates
1997–2024	Hamilton RBG CS	location
1955–1997	Hamilton RBG	location
1866–1954	Hamilton	location