Waterloo Weather in 1999

Historical record of Waterloo, Iowa weather for the year 1999 based on NOAA data.

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1999 Waterloo Weather Extremes
Highest temperature	95 °F	July 29
Lowest temperature	-22 °F	January 9
Highest daily low	77 °F	July 29
Lowest daily high	-3 °F	January 4
Most daily precipitation	5.5 inches	July 2
Most daily snow	8.2 inches	January 2
Total annual precipitation	38.5 inches	-
Total annual snow	36.8 inches	-

What was the hottest temperature in Waterloo in 1999?

The highest temperature recorded in Waterloo, Iowa in 1999 was 95 °F which happened on July 29.

Highest Temperatures: All-Time By Year

Highest Temperatures in Waterloo in 1999

Rank	Temperature	Date
1	95 °F	Jul 29
2	94 °F	Jul 15
3	93 °F	Jul 30
3	93 °F	Jul 25
5	92 °F	Jul 24
5	92 °F	Jul 22
5	92 °F	Jul 5
8	91 °F	Sep 4
8	91 °F	Sep 3
8	91 °F	Sep 2
8	91 °F	Jul 28
8	91 °F	Jul 4

What was the coldest temperature in Waterloo in 1999?

The lowest temperature recorded in Waterloo, Iowa in 1999 was -22 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Waterloo in 1999

Rank	Temperature	Date
1	-22 °F	January 9
1	-22 °F	January 5
3	-21 °F	January 4
4	-16 °F	January 7
5	-15 °F	December 21
6	-14 °F	December 23
7	-9 °F	December 22
7	-9 °F	January 10
7	-9 °F	January 6
10	-8 °F	January 1

January 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	15	-8	0.30	4.0
January 2	19	14	0.55	8.2
January 3	15	-3	0.02	0.3
January 4	-3	-21	0.00	0.0
January 5	17	-22	0.02	0.4
January 6	19	-9	0.02	0.4
January 7	4	-16	0.00	0.0
January 8	11	-6	0.12	2.8
January 9	8	-22	0.04	1.0
January 10	15	-9	0.00	0.0
January 11	16	-5	0.01	0.2
January 12	12	9	0.00	0.0
January 13	15	3	0.02	0.3
January 14	19	11	0.03	0.5
January 15	30	12	0.00	0.0
January 16	37	14	0.00	0.0
January 17	36	12	0.08	1.0
January 18	33	11	0.02	0.2
January 19	27	8	0.00	0.0
January 20	30	7	0.00	0.0
January 21	34	28	0.17	0.0
January 22	35	33	0.05	0.0
January 23	33	27	0.00	0.0
January 24	31	19	0.16	2.2
January 25	19	2	0.00	0.0
January 26	35	14	0.00	0.0
January 27	39	29	0.00	0.0
January 28	30	13	0.00	0.0
January 29	27	14	0.00	0.0
January 30	36	15	0.00	0.0
January 31	37	28	0.00	0.0

February 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	36	33	0.01	0.0
February 2	39	28	0.00	0.0
February 3	44	27	0.00	0.0
February 4	27	14	0.00	0.0
February 5	45	24	0.00	0.0
February 6	38	26	0.00	0.0
February 7	42	26	0.00	0.0
February 8	55	38	0.00	0.0
February 9	51	32	0.00	0.0
February 10	55	37	0.00	0.0
February 11	58	22	0.29	0.5
February 12	26	17	0.00	0.1
February 13	32	12	0.00	0.0
February 14	51	28	0.00	0.0
February 15	56	33	0.00	0.0
February 16	36	27	0.00	0.0
February 17	30	23	0.00	0.0
February 18	33	26	0.01	0.1
February 19	33	23	0.00	0.0
February 20	33	21	0.00	0.0
February 21	35	16	0.00	0.0
February 22	33	19	0.00	0.0
February 23	31	23	0.03	0.5
February 24	34	23	0.00	0.0
February 25	46	15	0.00	0.0
February 26	39	29	0.03	0.0
February 27	47	35	0.00	0.0
February 28	38	30	0.00	0.0

March 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	55	27	0.00	0.0
March 2	41	26	0.03	0.0
March 3	35	20	0.00	0.0
March 4	40	15	0.00	0.0
March 5	33	26	0.05	0.7
March 6	30	18	0.02	0.3
March 7	31	13	0.00	0.0
March 8	29	22	0.34	4.4
March 9	32	21	0.04	0.5
March 10	33	10	0.00	0.0
March 11	37	19	0.00	0.0
March 12	37	17	0.00	0.0
March 13	41	22	0.00	0.0
March 14	44	20	0.00	0.0
March 15	47	25	0.00	0.0
March 16	60	33	0.00	0.0
March 17	53	35	0.00	0.0
March 18	46	27	0.00	0.0
March 19	52	22	0.00	0.0
March 20	59	29	0.00	0.0
March 21	48	26	0.00	0.0
March 22	49	19	0.00	0.0
March 23	57	20	0.00	0.0
March 24	45	24	0.00	0.0
March 25	48	19	0.00	0.0
March 26	53	18	0.00	0.0
March 27	61	31	0.00	0.0
March 28	55	39	0.39	0.0
March 29	62	35	0.00	0.0
March 30	74	40	0.00	0.0
March 31	66	49	0.00	0.0

April 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	68	55	0.00
April 2	70	43	0.03
April 3	73	50	0.36
April 4	59	39	0.07
April 5	57	42	0.53
April 6	60	40	0.00
April 7	73	37	0.00
April 8	58	37	1.06
April 9	51	42	0.04
April 10	53	42	0.07
April 11	50	38	0.02
April 12	58	33	0.00
April 13	60	40	0.00
April 14	63	42	0.00
April 15	51	39	0.21
April 16	49	37	0.06
April 17	54	35	0.00
April 18	51	33	0.00
April 19	63	32	0.00
April 20	59	38	0.06
April 21	62	40	0.52
April 22	51	42	1.34
April 23	58	38	0.01
April 24	61	37	0.00
April 25	64	35	0.00
April 26	66	50	0.00
April 27	58	48	0.33
April 28	66	45	0.00
April 29	69	38	0.00
April 30	73	36	0.00

May 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	73	37	0.00
May 2	76	41	0.00
May 3	80	60	0.00
May 4	71	64	0.25
May 5	65	51	0.02
May 6	56	49	0.09
May 7	56	48	0.37
May 8	54	42	0.00
May 9	69	35	0.00
May 10	85	53	0.00
May 11	76	56	0.33
May 12	62	54	1.20
May 13	57	49	0.22
May 14	68	46	0.01
May 15	66	56	0.02
May 16	71	60	3.03
May 17	68	58	0.52
May 18	67	52	0.01
May 19	77	49	0.00
May 20	77	60	0.00
May 21	72	60	0.34
May 22	77	55	0.08
May 23	64	51	0.06
May 24	65	50	0.00
May 25	71	49	0.00
May 26	76	49	0.00
May 27	87	49	0.10
May 28	87	57	0.00
May 29	85	56	0.00
May 30	84	57	0.00
May 31	72	58	0.01

June 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	74	56	0.84
June 2	72	54	0.00
June 3	78	53	0.00
June 4	73	57	0.85
June 5	87	64	0.00
June 6	85	74	0.00
June 7	90	68	0.00
June 8	89	66	0.46
June 9	89	65	0.42
June 10	80	66	0.62
June 11	80	68	0.01
June 12	81	65	0.00
June 13	81	61	0.00
June 14	73	51	0.00
June 15	63	44	0.00
June 16	69	48	0.12
June 17	71	47	0.00
June 18	74	51	0.00
June 19	77	61	0.00
June 20	80	57	0.00
June 21	85	64	0.00
June 22	87	69	0.50
June 23	82	67	0.33
June 24	88	60	0.00
June 25	89	66	0.00
June 26	88	67	0.00
June 27	81	67	0.02
June 28	75	56	0.05
June 29	74	51	0.00
June 30	78	59	0.05

July 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	80	61	0.00
July 2	82	60	5.49
July 3	89	68	0.28
July 4	91	75	0.00
July 5	92	75	0.37
July 6	81	64	0.09
July 7	84	62	0.00
July 8	89	63	0.02
July 9	84	60	0.00
July 10	77	56	0.00
July 11	79	51	0.00
July 12	81	53	0.00
July 13	84	62	0.00
July 14	90	67	0.00
July 15	94	66	0.00
July 16	86	68	0.14
July 17	84	66	0.01
July 18	90	66	0.39
July 19	89	72	0.26
July 20	89	69	1.93
July 21	88	70	0.01
July 22	92	73	0.00
July 23	89	74	0.25
July 24	92	69	0.00
July 25	93	72	0.00
July 26	86	71	1.16
July 27	86	69	1.27
July 28	91	69	0.51
July 29	95	77	0.00
July 30	93	75	0.00
July 31	82	63	0.64

August 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	77	59	0.00
August 2	78	61	0.00
August 3	81	57	0.00
August 4	79	61	0.00
August 5	81	56	0.00
August 6	83	59	0.05
August 7	77	66	0.82
August 8	73	57	0.00
August 9	78	55	0.82
August 10	82	63	0.00
August 11	83	60	0.01
August 12	84	66	0.13
August 13	72	53	0.01
August 14	74	48	0.00
August 15	80	57	0.00
August 16	84	63	0.01
August 17	83	55	0.00
August 18	75	63	1.12
August 19	76	57	0.00
August 20	78	53	0.00
August 21	76	58	0.08
August 22	71	63	0.52
August 23	77	61	0.73
August 24	76	61	0.00
August 25	83	59	0.00
August 26	83	59	0.00
August 27	86	62	0.00
August 28	90	66	0.00
August 29	79	61	0.00
August 30	74	54	0.00
August 31	80	56	0.00

September 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	86	60	0.00
September 2	91	60	0.00
September 3	91	64	0.00
September 4	91	68	0.00
September 5	75	53	0.04
September 6	79	47	0.00
September 7	87	59	0.00
September 8	78	51	0.00
September 9	68	46	0.00
September 10	77	44	0.00
September 11	84	40	0.00
September 12	74	51	0.04
September 13	66	47	0.01
September 14	68	41	0.07
September 15	69	38	0.00
September 16	72	36	0.00
September 17	76	37	0.00
September 18	82	40	0.00
September 19	70	47	0.00
September 20	59	36	0.00
September 21	64	32	0.00
September 22	80	35	0.00
September 23	87	52	0.00
September 24	74	46	0.00
September 25	85	51	0.00
September 26	73	55	0.22
September 27	63	51	0.49
September 28	66	47	0.00
September 29	64	39	0.00
September 30	74	39	0.00

October 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	56	33	0.08
October 2	53	35	0.01
October 3	43	33	0.18
October 4	57	28	0.00
October 5	72	38	0.00
October 6	67	30	0.00
October 7	78	52	0.00
October 8	73	45	0.04
October 9	77	39	0.00
October 10	72	42	0.00
October 11	70	35	0.00
October 12	86	52	0.00
October 13	56	33	0.00
October 14	65	31	0.00
October 15	84	49	0.01
October 16	63	43	0.00
October 17	53	27	0.00
October 18	52	24	0.00
October 19	53	29	0.00
October 20	55	33	0.00
October 21	77	42	0.00
October 22	55	34	0.00
October 23	49	24	0.00
October 24	55	20	0.00
October 25	68	39	0.00
October 26	64	33	0.00
October 27	73	40	0.00
October 28	66	42	0.00
October 29	78	56	0.02
October 30	67	33	0.00
October 31	69	30	0.00

November 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	61	39	0.00
November 2	45	22	0.00
November 3	58	15	0.00
November 4	64	22	0.00
November 5	59	28	0.00
November 6	60	24	0.00
November 7	66	35	0.00
November 8	80	37	0.00
November 9	75	54	0.00
November 10	58	43	0.00
November 11	50	38	0.00
November 12	62	32	0.00
November 13	79	33	0.00
November 14	53	26	0.00
November 15	54	22	0.00
November 16	52	22	0.00
November 17	54	26	0.00
November 18	73	39	0.00
November 19	57	32	0.00
November 20	49	23	0.00
November 21	59	36	0.00
November 22	57	29	0.00
November 23	50	34	1.17
November 24	47	26	0.00
November 25	48	30	0.00
November 26	44	34	0.03
November 27	46	26	0.00
November 28	47	25	0.00
November 29	37	18	0.00
November 30	37	17	0.00

December 1999 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	50	32	0.00	0.0
December 2	56	42	0.00	0.0
December 3	56	47	0.15	0.0
December 4	47	37	0.00	0.0
December 5	37	20	0.00	0.0
December 6	39	15	0.00	0.0
December 7	47	29	0.00	0.0
December 8	50	27	0.00	0.0
December 9	43	21	0.00	0.0
December 10	36	16	0.00	0.0
December 11	41	16	0.00	0.0
December 12	48	22	0.00	0.0
December 13	45	15	0.00	0.0
December 14	40	27	0.00	0.0
December 15	35	16	0.00	0.1
December 16	22	4	0.01	0.5
December 17	23	3	0.04	0.5
December 18	27	0	0.00	0.0
December 19	31	18	0.10	3.5
December 20	18	-7	0.00	0.0
December 21	7	-15	0.01	0.3
December 22	8	-9	0.02	0.6
December 23	20	-14	0.08	2.0
December 24	16	-6	0.00	0.0
December 25	41	13	0.00	0.0
December 26	38	21	0.00	0.0
December 27	28	8	0.02	0.7
December 28	40	14	0.00	0.0
December 29	50	22	0.00	0.0
December 30	46	22	0.00	0.0
December 31	43	21	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1950–2024	Waterloo Municipal Airport	location
1895–1950	Waterloo	location