Waterloo Weather in 1990

Historical record of Waterloo, Iowa weather for the year 1990 based on NOAA data.

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1990 Waterloo Weather Extremes
Highest temperature	98 °F	July 3
Lowest temperature	-16 °F	December 23
Highest daily low	75 °F	August 27
Lowest daily high	-8 °F	December 22
Most daily precipitation	2.3 inches	July 27
Most daily snow	7.6 inches	December 3
Total annual precipitation	41.5 inches	-
Total annual snow	27.3 inches	-

What was the hottest temperature in Waterloo in 1990?

The highest temperature recorded in Waterloo, Iowa in 1990 was 98 °F which happened on July 3.

Highest Temperatures: All-Time By Year

Highest Temperatures in Waterloo in 1990

Rank	Temperature	Date
1	98 °F	Jul 3
2	95 °F	Jul 4
3	93 °F	Jun 27
4	92 °F	Sep 6
4	92 °F	Sep 5
4	92 °F	Jul 8
4	92 °F	Jun 30
8	91 °F	Sep 4
8	91 °F	Aug 27
8	91 °F	Aug 26

What was the coldest temperature in Waterloo in 1990?

The lowest temperature recorded in Waterloo, Iowa in 1990 was -16 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Waterloo in 1990

Rank	Temperature	Date
1	-16 °F	December 23
1	-16 °F	December 22
3	-15 °F	December 26
4	-12 °F	December 25
5	-10 °F	December 30
6	-9 °F	December 31
7	-8 °F	December 21
7	-8 °F	February 17
9	-6 °F	December 29
10	-5 °F	December 24

January 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	30	12	0.00	0.0
January 2	46	18	0.00	0.0
January 3	45	30	0.00	0.0
January 4	36	20	0.02	0.2
January 5	39	15	0.00	0.0
January 6	28	18	0.00	0.0
January 7	50	25	0.00	0.0
January 8	47	25	0.03	0.0
January 9	37	24	0.00	0.0
January 10	48	17	0.00	0.0
January 11	46	27	0.00	0.0
January 12	27	13	0.00	0.0
January 13	31	8	0.00	0.0
January 14	43	19	0.00	0.0
January 15	55	16	0.00	0.0
January 16	51	28	0.00	0.0
January 17	48	28	0.08	0.0
January 18	35	17	0.00	0.0
January 19	35	11	0.00	0.0
January 20	32	24	0.14	2.2
January 21	30	14	0.00	0.0
January 22	40	21	0.00	0.0
January 23	42	29	0.01	0.0
January 24	35	25	0.15	1.8
January 25	29	17	0.03	0.6
January 26	36	8	0.00	0.0
January 27	37	18	0.00	0.1
January 28	39	20	0.00	0.0
January 29	42	19	0.00	0.0
January 30	37	11	0.00	0.0
January 31	42	12	0.00	0.0

February 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	42	18	0.00	0.0
February 2	26	19	0.10	1.4
February 3	34	13	0.02	0.2
February 4	42	6	0.00	0.0
February 5	52	28	0.00	0.0
February 6	40	23	0.00	0.0
February 7	40	20	0.00	0.0
February 8	50	29	0.00	0.0
February 9	41	21	0.00	0.0
February 10	41	22	0.00	0.0
February 11	48	24	0.00	0.0
February 12	63	25	0.00	0.0
February 13	39	17	0.00	0.0
February 14	21	16	0.06	1.0
February 15	29	20	0.09	0.7
February 16	29	8	0.09	1.6
February 17	22	-8	0.00	0.0
February 18	35	18	0.00	0.0
February 19	26	10	0.00	0.0
February 20	34	6	0.00	0.0
February 21	44	20	0.00	0.0
February 22	40	29	0.00	0.0
February 23	39	21	0.01	0.3
February 24	27	5	0.00	0.0
February 25	21	1	0.00	0.0
February 26	41	19	0.00	0.0
February 27	35	18	0.00	0.0
February 28	41	12	0.00	0.0

March 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	52	23	0.00
March 2	56	28	0.00
March 3	35	19	0.00
March 4	58	20	0.00
March 5	34	28	0.00
March 6	38	27	0.00
March 7	34	27	0.33
March 8	43	32	0.63
March 9	63	34	0.00
March 10	50	38	0.18
March 11	68	45	0.92
March 12	75	47	0.00
March 13	66	49	0.77
March 14	66	46	1.16
March 15	59	38	0.13
March 16	47	35	0.03
March 17	42	30	0.00
March 18	36	22	0.00
March 19	34	17	0.00
March 20	53	21	0.00
March 21	68	32	0.00
March 22	45	25	0.27
March 23	29	17	0.00
March 24	37	21	0.00
March 25	47	22	0.00
March 26	43	19	0.00
March 27	54	19	0.00
March 28	54	28	0.00
March 29	46	37	0.04
March 30	51	34	0.00
March 31	48	34	0.00

April 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	56	36	0.11
April 2	43	27	0.00
April 3	54	27	0.00
April 4	59	34	0.01
April 5	42	24	0.01
April 6	37	21	0.00
April 7	51	14	0.00
April 8	70	39	0.00
April 9	57	45	0.58
April 10	52	33	0.00
April 11	37	24	0.00
April 12	51	20	0.00
April 13	43	25	0.27
April 14	61	32	0.07
April 15	55	34	0.00
April 16	48	31	0.21
April 17	47	25	0.00
April 18	59	22	0.00
April 19	56	41	0.25
April 20	70	48	0.22
April 21	69	41	0.00
April 22	74	44	0.00
April 23	84	57	0.08
April 24	85	63	0.00
April 25	84	62	0.00
April 26	77	61	0.11
April 27	68	55	0.77
April 28	55	36	0.14
April 29	65	36	0.05
April 30	60	32	0.00

May 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	61	33	0.00
May 2	68	33	0.00
May 3	65	40	0.09
May 4	58	39	0.05
May 5	68	39	0.03
May 6	73	37	0.00
May 7	82	53	0.00
May 8	77	58	0.43
May 9	61	42	1.10
May 10	56	40	0.01
May 11	65	32	0.02
May 12	56	43	0.27
May 13	67	37	0.00
May 14	72	51	0.00
May 15	65	48	0.32
May 16	69	52	0.00
May 17	66	47	0.00
May 18	74	40	0.63
May 19	64	46	1.63
May 20	52	45	0.00
May 21	60	43	0.00
May 22	69	40	0.00
May 23	69	51	0.04
May 24	68	48	0.02
May 25	62	57	0.40
May 26	68	53	0.00
May 27	75	46	0.02
May 28	74	53	0.00
May 29	76	50	0.00
May 30	70	47	0.00
May 31	76	46	0.00

June 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	82	58	0.00
June 2	75	59	0.27
June 3	60	44	0.01
June 4	67	40	0.00
June 5	66	53	0.91
June 6	75	47	0.00
June 7	73	49	0.25
June 8	78	57	0.02
June 9	83	57	0.00
June 10	84	54	0.00
June 11	83	63	0.09
June 12	89	61	0.04
June 13	83	66	1.35
June 14	83	67	0.00
June 15	80	62	0.19
June 16	73	64	1.72
June 17	84	64	0.39
June 18	88	62	0.00
June 19	74	61	0.85
June 20	81	62	0.00
June 21	75	58	0.15
June 22	75	58	1.44
June 23	77	56	0.00
June 24	83	55	0.00
June 25	85	63	0.00
June 26	90	67	0.00
June 27	93	68	0.15
June 28	84	69	0.15
June 29	84	71	0.00
June 30	92	69	0.00

July 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	84	63	0.00
July 2	86	67	0.00
July 3	98	71	0.00
July 4	95	67	0.26
July 5	82	63	0.08
July 6	78	60	0.00
July 7	86	63	0.00
July 8	92	65	0.00
July 9	85	63	0.00
July 10	76	63	0.49
July 11	82	62	1.58
July 12	70	56	0.30
July 13	74	52	0.00
July 14	71	56	0.02
July 15	78	56	0.00
July 16	86	61	0.00
July 17	86	68	0.00
July 18	85	65	0.09
July 19	73	66	0.87
July 20	80	63	1.36
July 21	76	60	0.00
July 22	76	57	0.00
July 23	79	54	0.00
July 24	78	55	0.00
July 25	82	66	0.00
July 26	73	68	1.92
July 27	85	68	2.31
July 28	86	69	0.35
July 29	85	64	0.00
July 30	79	60	0.00
July 31	77	53	0.00

August 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	78	53	0.00
August 2	81	62	0.00
August 3	81	68	0.00
August 4	82	58	0.00
August 5	75	53	0.00
August 6	76	47	0.00
August 7	80	50	0.00
August 8	79	51	0.00
August 9	80	56	0.99
August 10	84	61	0.02
August 11	82	62	0.05
August 12	77	60	0.00
August 13	75	55	0.00
August 14	82	62	0.00
August 15	83	64	0.00
August 16	83	61	0.00
August 17	87	70	0.80
August 18	90	69	0.58
August 19	85	68	0.73
August 20	72	64	0.23
August 21	71	62	0.00
August 22	75	62	0.00
August 23	82	66	0.00
August 24	84	68	0.69
August 25	86	65	1.13
August 26	91	74	0.00
August 27	91	75	0.00
August 28	87	69	0.00
August 29	82	60	0.00
August 30	82	58	0.00
August 31	83	65	0.00

September 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	87	63	0.00
September 2	75	66	0.01
September 3	81	65	0.45
September 4	91	70	0.00
September 5	92	66	0.00
September 6	92	73	0.00
September 7	83	64	0.28
September 8	80	63	0.00
September 9	82	64	0.00
September 10	84	61	0.00
September 11	84	62	0.00
September 12	86	64	0.00
September 13	85	60	0.00
September 14	77	49	0.00
September 15	81	44	0.00
September 16	63	44	0.00
September 17	64	41	0.00
September 18	57	51	0.56
September 19	70	50	0.00
September 20	67	47	0.15
September 21	70	45	0.01
September 22	58	45	0.00
September 23	58	37	0.00
September 24	73	37	0.00
September 25	85	48	0.00
September 26	83	43	0.00
September 27	82	48	0.00
September 28	72	50	0.00
September 29	63	39	0.00
September 30	67	33	0.00

October 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	69	40	0.00
October 2	77	39	0.10
October 3	66	47	0.59
October 4	71	44	0.00
October 5	88	58	0.00
October 6	79	53	0.00
October 7	57	43	0.00
October 8	46	39	0.12
October 9	49	40	0.00
October 10	53	29	0.00
October 11	65	29	0.00
October 12	58	30	0.00
October 13	63	28	0.00
October 14	62	43	0.04
October 15	52	31	0.00
October 16	70	45	0.00
October 17	69	34	0.14
October 18	46	27	0.07
October 19	54	24	0.00
October 20	53	43	0.26
October 21	49	27	0.06
October 22	58	24	0.00
October 23	66	32	0.00
October 24	56	31	0.00
October 25	51	24	0.00
October 26	63	35	0.00
October 27	57	37	0.00
October 28	54	23	0.00
October 29	72	33	0.00
October 30	71	43	0.00
October 31	74	39	0.00

November 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	75	50	0.00	0.0
November 2	66	49	0.12	0.0
November 3	49	34	0.69	0.0
November 4	37	32	0.00	0.0
November 5	43	26	0.00	0.0
November 6	35	28	0.11	1.1
November 7	35	19	0.00	0.0
November 8	33	16	0.09	0.9
November 9	47	30	0.00	0.0
November 10	49	23	0.00	0.0
November 11	53	22	0.00	0.0
November 12	49	26	0.00	0.0
November 13	49	27	0.00	0.0
November 14	71	31	0.00	0.0
November 15	70	50	0.00	0.0
November 16	53	29	0.00	0.0
November 17	51	20	0.00	0.0
November 18	51	34	0.00	0.0
November 19	57	26	0.00	0.0
November 20	59	40	0.02	0.0
November 21	73	36	0.00	0.0
November 22	56	28	0.00	0.0
November 23	48	27	0.01	0.0
November 24	59	27	0.00	0.0
November 25	43	25	0.00	0.0
November 26	62	25	0.00	0.0
November 27	51	23	0.30	0.0
November 28	33	19	0.00	0.0
November 29	42	16	0.00	0.0
November 30	52	34	0.00	0.0

December 1990 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	45	18	0.00	0.0
December 2	36	11	0.05	0.8
December 3	29	22	0.49	7.6
December 4	22	6	0.00	0.0
December 5	37	17	0.00	0.0
December 6	36	20	0.00	0.0
December 7	38	21	0.00	0.0
December 8	42	16	0.00	0.0
December 9	43	23	0.00	0.0
December 10	42	20	0.00	0.0
December 11	45	28	0.00	0.0
December 12	38	29	0.00	0.0
December 13	31	15	0.00	0.0
December 14	33	15	0.25	2.0
December 15	33	20	0.13	1.2
December 16	32	10	0.00	0.0
December 17	35	16	0.24	2.5
December 18	24	10	0.02	0.4
December 19	35	24	0.01	0.0
December 20	35	-1	0.00	0.0
December 21	0	-8	0.00	0.2
December 22	-8	-16	0.00	0.0
December 23	-2	-16	0.00	0.0
December 24	22	-5	0.00	0.0
December 25	22	-12	0.00	0.0
December 26	9	-15	0.00	0.0
December 27	21	6	0.00	0.0
December 28	32	21	0.06	0.2
December 29	32	-6	0.00	0.0
December 30	-3	-10	0.01	0.3
December 31	19	-9	0.00	0.0

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Weather Station Details

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