Waterloo Weather in 2018

Historical record of Waterloo, Iowa weather for the year 2018 based on NOAA data.

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2018 Waterloo Weather Extremes
Highest temperature	97 °F	May 27
Lowest temperature	-21 °F	January 6
Highest daily low	73 °F	June 17
Lowest daily high	-4 °F	January 1
Most daily precipitation	3.2 inches	September 1
Most daily snow	7.6 inches	March 24
Total annual precipitation	54.2 inches	-
Total annual snow	45.2 inches	-

What was the hottest temperature in Waterloo in 2018?

The highest temperature recorded in Waterloo, Iowa in 2018 was 97 °F which happened on May 27.

Highest Temperatures: All-Time By Year

Highest Temperatures in Waterloo in 2018

Rank	Temperature	Date
1	97 °F	May 27
2	95 °F	May 28
3	94 °F	May 29
4	93 °F	Jun 30
4	93 °F	Jun 29
4	93 °F	Jun 5
4	93 °F	May 26
8	92 °F	Sep 17
8	92 °F	Jul 12
8	92 °F	Jul 4
8	92 °F	Jun 17
8	92 °F	Jun 1

What was the coldest temperature in Waterloo in 2018?

The lowest temperature recorded in Waterloo, Iowa in 2018 was -21 °F which happened 3 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Waterloo in 2018

Rank	Temperature	Date
1	-21 °F	January 6
1	-21 °F	January 2
1	-21 °F	January 1
4	-14 °F	February 6
5	-11 °F	January 4
6	-10 °F	February 12
6	-10 °F	January 14
6	-10 °F	January 5
9	-8 °F	January 13
10	-7 °F	January 17
10	-7 °F	January 3

January 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	-4	-21	0.00	0.0
January 2	15	-21	0.01	0.2
January 3	17	-7	0.00	0.0
January 4	7	-11	0.00	0.0
January 5	8	-10	0.00	0.0
January 6	11	-21	0.00	0.0
January 7	33	11	0.00	0.0
January 8	38	17	0.00	0.0
January 9	36	20	0.00	0.0
January 10	39	32	0.00	0.0
January 11	42	3	0.04	0.4
January 12	9	-4	0.00	0.0
January 13	7	-8	0.00	0.0
January 14	22	-10	0.10	1.3
January 15	21	-5	0.00	0.2
January 16	8	-6	0.00	0.0
January 17	23	-7	0.00	0.0
January 18	36	14	0.00	0.0
January 19	44	19	0.00	0.0
January 20	50	22	0.00	0.0
January 21	39	25	0.08	0.0
January 22	38	31	2.01	0.0
January 23	31	19	0.00	0.2
January 24	27	18	0.00	0.0
January 25	41	20	0.00	0.0
January 26	54	33	0.00	0.0
January 27	48	24	0.00	0.0
January 28	27	17	0.00	0.0
January 29	23	8	0.00	0.0
January 30	34	5	0.00	0.0
January 31	39	25	0.00	0.0

February 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	25	2	0.00	0.0
February 2	19	-3	0.02	0.1
February 3	38	17	0.09	0.2
February 4	21	-2	0.00	0.0
February 5	10	-3	0.28	3.0
February 6	10	-14	0.01	0.2
February 7	15	0	0.06	0.8
February 8	18	5	0.55	4.8
February 9	16	5	0.15	1.2
February 10	13	-2	0.02	0.3
February 11	16	-2	0.04	0.5
February 12	14	-10	0.00	0.0
February 13	28	6	0.00	0.0
February 14	41	13	0.00	0.0
February 15	39	26	0.00	0.0
February 16	26	7	0.00	0.0
February 17	32	15	0.06	0.8
February 18	41	10	0.00	0.0
February 19	38	31	0.16	0.0
February 20	31	15	0.32	0.0
February 21	25	10	0.00	0.0
February 22	34	23	0.06	0.0
February 23	33	22	0.19	0.0
February 24	34	20	0.23	0.2
February 25	36	18	0.00	0.0
February 26	49	21	0.00	0.0
February 27	59	33	0.00	0.0
February 28	51	26	0.00	0.0

March 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	45	26	0.00	0.0
March 2	45	19	0.00	0.0
March 3	51	31	0.00	0.0
March 4	52	34	0.00	0.0
March 5	39	27	0.65	1.2
March 6	33	25	0.07	1.6
March 7	26	15	0.00	0.0
March 8	28	12	0.00	0.0
March 9	32	12	0.00	0.0
March 10	37	19	0.00	0.0
March 11	41	31	0.01	0.1
March 12	40	26	0.00	0.0
March 13	36	23	0.00	0.0
March 14	53	19	0.00	0.0
March 15	48	21	0.00	0.0
March 16	41	26	0.09	0.0
March 17	48	25	0.00	0.0
March 18	46	21	0.00	0.0
March 19	52	25	0.00	0.0
March 20	38	25	0.00	0.0
March 21	44	20	0.00	0.0
March 22	44	19	0.00	0.0
March 23	48	26	0.10	0.9
March 24	35	26	0.66	7.6
March 25	37	23	0.00	0.0
March 26	35	29	0.08	0.0
March 27	36	24	0.00	0.0
March 28	43	18	0.00	0.0
March 29	42	29	0.00	0.0
March 30	47	29	0.00	0.0
March 31	46	20	0.01	0.0

April 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	35	17	0.00	0.0
April 2	41	17	0.00	0.0
April 3	33	17	0.16	0.6
April 4	29	11	0.00	0.0
April 5	46	20	0.00	0.0
April 6	35	16	0.00	0.0
April 7	36	12	0.00	0.0
April 8	32	13	0.23	4.4
April 9	36	23	0.02	0.5
April 10	49	17	0.00	0.0
April 11	59	27	0.03	0.0
April 12	61	38	0.00	0.0
April 13	50	35	0.24	0.0
April 14	36	26	0.36	0.0
April 15	28	23	0.23	2.5
April 16	33	23	0.01	0.1
April 17	44	23	0.00	0.0
April 18	32	29	0.45	4.0
April 19	48	21	0.00	0.0
April 20	57	21	0.00	0.0
April 21	60	39	0.00	0.0
April 22	67	38	0.00	0.0
April 23	71	35	0.00	0.0
April 24	73	36	0.00	0.0
April 25	63	34	0.00	0.0
April 26	72	31	0.00	0.0
April 27	70	35	0.00	0.0
April 28	58	28	0.00	0.0
April 29	67	26	0.00	0.0
April 30	83	49	0.00	0.0

May 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	73	57	0.40
May 2	67	53	0.08
May 3	68	55	0.48
May 4	75	50	0.02
May 5	81	45	0.00
May 6	77	49	0.00
May 7	80	42	0.00
May 8	81	52	0.00
May 9	71	54	0.07
May 10	70	49	0.00
May 11	53	45	0.02
May 12	54	45	0.02
May 13	61	48	0.05
May 14	78	56	0.27
May 15	80	53	0.00
May 16	83	52	0.00
May 17	83	52	0.00
May 18	81	51	0.00
May 19	82	51	0.01
May 20	59	52	0.00
May 21	62	53	0.77
May 22	78	57	0.00
May 23	84	63	0.00
May 24	87	65	0.00
May 25	87	63	0.39
May 26	93	61	0.00
May 27	97	60	0.00
May 28	95	65	0.00
May 29	94	65	0.00
May 30	84	66	0.44
May 31	89	61	0.00

June 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	92	63	0.00
June 2	79	58	0.07
June 3	78	52	0.00
June 4	86	48	0.00
June 5	93	58	0.00
June 6	85	60	0.00
June 7	87	59	0.00
June 8	80	61	0.02
June 9	87	63	2.02
June 10	74	63	0.00
June 11	76	63	0.00
June 12	81	65	0.00
June 13	80	58	0.00
June 14	75	58	0.40
June 15	91	63	0.00
June 16	91	71	0.00
June 17	92	73	0.00
June 18	89	70	2.19
June 19	80	68	0.03
June 20	78	65	0.36
June 21	67	57	0.29
June 22	77	59	0.00
June 23	80	58	0.00
June 24	82	57	0.00
June 25	78	63	0.26
June 26	79	64	1.60
June 27	81	62	0.00
June 28	83	61	0.00
June 29	93	68	0.00
June 30	93	67	2.29

July 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	81	61	0.04
July 2	84	57	0.00
July 3	88	65	0.00
July 4	92	71	0.14
July 5	87	62	0.98
July 6	81	57	0.00
July 7	80	55	0.00
July 8	82	60	0.00
July 9	89	63	0.00
July 10	86	64	0.00
July 11	87	62	0.00
July 12	92	69	0.00
July 13	90	70	0.83
July 14	81	69	0.02
July 15	88	70	0.00
July 16	82	64	0.00
July 17	85	58	0.00
July 18	83	60	0.00
July 19	71	64	1.34
July 20	77	64	0.03
July 21	80	62	0.00
July 22	78	60	0.00
July 23	83	60	0.00
July 24	82	60	0.00
July 25	84	54	0.22
July 26	74	57	0.00
July 27	75	54	0.00
July 28	77	51	0.00
July 29	79	52	0.00
July 30	81	54	0.00
July 31	84	54	0.00

August 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	83	55	0.02
August 2	75	55	0.00
August 3	88	58	0.00
August 4	83	66	0.00
August 5	84	65	1.87
August 6	82	63	1.81
August 7	81	61	0.09
August 8	83	60	0.00
August 9	86	65	0.00
August 10	85	63	0.00
August 11	86	62	0.00
August 12	85	59	0.00
August 13	86	60	0.00
August 14	84	62	0.00
August 15	85	67	0.00
August 16	78	65	0.81
August 17	83	66	0.00
August 18	85	60	0.00
August 19	82	61	0.00
August 20	74	62	0.98
August 21	70	55	0.00
August 22	76	52	0.00
August 23	78	49	0.00
August 24	69	62	0.08
August 25	83	62	0.00
August 26	84	65	0.02
August 27	88	71	0.18
August 28	82	63	0.22
August 29	71	53	0.00
August 30	77	51	0.00
August 31	82	66	0.00

September 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	81	66	3.23
September 2	77	66	1.28
September 3	74	66	2.57
September 4	86	69	0.36
September 5	74	61	0.30
September 6	74	57	0.00
September 7	65	52	0.00
September 8	71	52	0.00
September 9	73	49	0.00
September 10	76	45	0.00
September 11	81	53	0.00
September 12	82	59	0.00
September 13	84	57	0.00
September 14	88	62	0.00
September 15	89	63	0.00
September 16	87	60	0.00
September 17	92	64	0.00
September 18	69	60	1.34
September 19	75	58	1.78
September 20	90	65	0.87
September 21	67	44	0.02
September 22	67	41	0.00
September 23	75	45	0.00
September 24	77	51	0.00
September 25	64	45	1.14
September 26	64	44	0.00
September 27	69	47	0.00
September 28	54	35	0.00
September 29	51	33	0.10
September 30	51	45	0.36

October 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	54	47	2.03	0.0
October 2	59	47	0.00	0.0
October 3	85	47	0.21	0.0
October 4	56	37	0.00	0.0
October 5	56	46	0.07	0.0
October 6	52	45	0.07	0.0
October 7	54	47	0.58	0.0
October 8	69	52	1.10	0.0
October 9	73	62	1.24	0.0
October 10	68	37	0.01	0.0
October 11	44	31	0.00	0.0
October 12	47	31	0.00	0.0
October 13	52	39	0.00	0.0
October 14	47	32	0.11	0.1
October 15	47	30	0.00	0.0
October 16	62	34	0.00	0.0
October 17	51	28	0.00	0.0
October 18	65	27	0.00	0.0
October 19	65	48	0.11	0.0
October 20	49	25	0.00	0.0
October 21	55	22	0.00	0.0
October 22	66	28	0.00	0.0
October 23	54	28	0.00	0.0
October 24	57	23	0.00	0.0
October 25	53	41	0.00	0.0
October 26	55	38	0.00	0.0
October 27	57	38	0.13	0.0
October 28	58	35	0.00	0.0
October 29	58	28	0.00	0.0
October 30	62	43	0.00	0.0
October 31	58	34	0.00	0.0

November 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	58	28	0.00	0.0
November 2	55	35	0.00	0.0
November 3	47	33	0.76	0.0
November 4	47	38	0.64	0.0
November 5	46	37	0.40	0.0
November 6	44	33	0.02	0.0
November 7	33	30	0.00	0.0
November 8	30	25	0.06	0.8
November 9	26	14	0.00	0.2
November 10	26	9	0.00	0.0
November 11	40	25	0.00	0.0
November 12	26	18	0.00	0.0
November 13	27	11	0.00	0.0
November 14	42	15	0.00	0.0
November 15	44	20	0.00	0.0
November 16	38	30	0.04	0.3
November 17	30	18	0.22	2.4
November 18	22	1	0.00	0.0
November 19	30	14	0.00	0.0
November 20	29	16	0.00	0.0
November 21	35	22	0.00	0.0
November 22	43	25	0.00	0.0
November 23	44	37	0.29	0.0
November 24	43	33	0.00	0.0
November 25	35	26	0.00	0.0
November 26	26	14	0.00	0.0
November 27	28	12	0.00	0.0
November 28	28	11	0.00	0.0
November 29	35	23	0.00	0.0
November 30	40	16	0.00	0.0

December 2018 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	38	31	0.40	0.0
December 2	36	31	0.12	1.1
December 3	31	27	0.00	0.0
December 4	27	23	0.00	0.2
December 5	36	21	0.00	0.0
December 6	26	10	0.00	0.0
December 7	26	8	0.00	0.0
December 8	29	14	0.00	0.0
December 9	32	10	0.00	0.0
December 10	30	10	0.00	0.0
December 11	38	13	0.00	0.0
December 12	36	24	0.00	0.0
December 13	40	21	0.00	0.0
December 14	45	21	0.00	0.0
December 15	48	17	0.00	0.0
December 16	50	23	0.00	0.0
December 17	45	22	0.00	0.0
December 18	51	26	0.00	0.0
December 19	52	35	0.00	0.0
December 20	37	32	0.00	0.0
December 21	32	25	0.00	0.0
December 22	33	22	0.00	0.0
December 23	37	20	0.00	0.0
December 24	34	13	0.00	0.0
December 25	43	24	0.00	0.0
December 26	40	21	0.47	0.0
December 27	49	36	1.42	0.0
December 28	36	20	0.03	0.9
December 29	21	16	0.00	0.0
December 30	37	15	0.00	0.0
December 31	34	27	0.16	1.3

Next Year >

Weather Station Details

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