Waterloo Weather in 2023

Historical record of Waterloo, Iowa weather for the year 2023 based on NOAA data.

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2023 Waterloo Weather Extremes
Highest temperature	105 °F	August 23
Lowest temperature	-21 °F	January 31
Highest daily low	79 °F	August 23
Lowest daily high	8 °F	January 30
Most daily precipitation	1.5 inches	October 13
Most daily snow	4.7 inches	January 28
Total annual precipitation	22.6 inches	-
Total annual snow	23.0 inches	-

What was the hottest temperature in Waterloo in 2023?

The highest temperature recorded in Waterloo, Iowa in 2023 was 105 °F which happened on August 23.

Highest Temperatures: All-Time By Year

Highest Temperatures in Waterloo in 2023

Rank	Temperature	Date
1	105 °F	Aug 23
2	103 °F	Aug 24
3	100 °F	Sep 4
3	100 °F	Sep 3
5	99 °F	Aug 22
6	98 °F	Sep 2
6	98 °F	Jul 28
8	97 °F	Aug 20
9	95 °F	Aug 21
9	95 °F	Aug 19
9	95 °F	Jul 26

What was the coldest temperature in Waterloo in 2023?

The lowest temperature recorded in Waterloo, Iowa in 2023 was -21 °F which happened on Jan 31.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Waterloo in 2023

Rank	Temperature	Date
1	-21 °F	January 31
2	-14 °F	January 30
3	-10 °F	February 3
4	-7 °F	February 1
5	-6 °F	February 2
6	-1 °F	January 29
7	0 °F	November 28
8	1 °F	February 24
9	3 °F	January 7
10	5 °F	January 6

January 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	40	20	0.00	0.0
January 2	37	27	0.07	0.0
January 3	40	33	0.58	0.0
January 4	34	28	0.07	1.3
January 5	33	15	0.00	0.0
January 6	22	5	0.00	0.0
January 7	24	3	0.00	0.0
January 8	23	12	0.00	0.0
January 9	42	11	0.00	0.0
January 10	30	21	0.00	0.0
January 11	42	23	0.00	0.0
January 12	32	20	0.00	0.0
January 13	26	20	0.00	0.0
January 14	36	19	0.00	0.0
January 15	44	30	0.00	0.0
January 16	49	36	0.39	0.0
January 17	36	31	0.00	0.0
January 18	36	29	0.57	4.3
January 19	33	30	0.03	0.6
January 20	30	20	0.00	0.0
January 21	30	19	0.00	0.0
January 22	29	18	0.00	0.0
January 23	32	9	0.00	0.0
January 24	33	9	0.00	0.0
January 25	33	15	0.00	0.1
January 26	17	7	0.00	0.0
January 27	37	15	0.01	0.2
January 28	16	9	0.30	4.7
January 29	9	-1	0.00	0.2
January 30	8	-14	0.00	0.0
January 31	13	-21	0.00	0.0

February 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	25	-7	0.00	0.0
February 2	22	-6	0.00	0.0
February 3	11	-10	0.00	0.0
February 4	38	10	0.00	0.0
February 5	34	8	0.00	0.0
February 6	44	8	0.00	0.0
February 7	37	26	0.00	0.0
February 8	46	22	0.00	0.0
February 9	39	24	0.01	0.0
February 10	33	13	0.00	0.0
February 11	47	23	0.00	0.0
February 12	47	25	0.00	0.0
February 13	51	28	0.00	0.0
February 14	48	34	0.82	0.0
February 15	45	22	0.00	0.0
February 16	27	11	0.13	2.8
February 17	27	6	0.00	0.0
February 18	41	19	0.00	0.0
February 19	45	26	0.00	0.0
February 20	48	23	0.00	0.0
February 21	31	14	0.00	0.0
February 22	31	26	0.20	0.5
February 23	32	6	0.03	0.0
February 24	24	1	0.00	0.1
February 25	37	13	0.00	0.0
February 26	50	19	0.00	0.0
February 27	43	35	1.10	0.0
February 28	43	26	0.00	0.0

March 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	50	32	0.00	0.0
March 2	38	27	0.00	0.0
March 3	48	27	0.00	0.0
March 4	49	24	0.00	0.0
March 5	46	22	0.10	0.0
March 6	41	33	0.00	0.0
March 7	46	29	0.00	0.0
March 8	41	33	0.00	0.0
March 9	38	31	0.43	4.1
March 10	34	19	0.00	0.0
March 11	34	31	0.09	0.9
March 12	34	26	0.00	0.0
March 13	32	20	0.00	0.0
March 14	34	11	0.00	0.0
March 15	54	31	0.00	0.0
March 16	47	24	0.36	0.6
March 17	26	9	0.00	0.0
March 18	28	9	0.00	0.0
March 19	43	11	0.00	0.0
March 20	54	31	0.00	0.0
March 21	60	30	0.00	0.0
March 22	52	33	0.00	0.0
March 23	42	24	0.08	0.4
March 24	52	24	0.00	0.0
March 25	53	30	0.00	0.0
March 26	41	25	0.30	0.0
March 27	51	18	0.00	0.0
March 28	45	25	0.00	0.0
March 29	40	23	0.00	0.0
March 30	62	24	0.02	0.0
March 31	77	35	0.32	0.0

April 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	50	27	0.00
April 2	72	32	0.00
April 3	53	31	0.01
April 4	65	39	0.47
April 5	62	30	0.00
April 6	53	24	0.00
April 7	65	31	0.00
April 8	71	42	0.00
April 9	73	44	0.00
April 10	76	45	0.00
April 11	82	45	0.00
April 12	87	59	0.00
April 13	85	57	0.00
April 14	84	53	0.00
April 15	68	40	0.15
April 16	40	33	0.07
April 17	57	35	0.00
April 18	61	25	0.00
April 19	59	47	0.11
April 20	61	39	0.38
April 21	50	34	0.01
April 22	40	31	0.00
April 23	49	29	0.00
April 24	59	23	0.00
April 25	58	31	0.00
April 26	61	27	0.00
April 27	73	43	0.00
April 28	75	39	0.03
April 29	58	41	0.00
April 30	55	39	0.00

May 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	62	40	0.00
May 2	65	39	0.00
May 3	71	28	0.00
May 4	82	38	0.00
May 5	77	54	0.04
May 6	72	57	0.57
May 7	80	55	0.17
May 8	76	59	0.36
May 9	75	53	0.00
May 10	80	54	0.00
May 11	83	57	0.10
May 12	80	65	0.21
May 13	79	63	0.01
May 14	67	52	0.11
May 15	73	52	0.00
May 16	82	51	0.00
May 17	72	51	0.00
May 18	85	54	0.00
May 19	64	47	0.00
May 20	75	43	0.00
May 21	80	44	0.00
May 22	82	48	0.00
May 23	85	49	0.00
May 24	87	51	0.00
May 25	78	49	0.00
May 26	79	38	0.00
May 27	82	43	0.00
May 28	85	50	0.00
May 29	88	50	0.00
May 30	92	66	0.00
May 31	93	60	0.18

June 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	80	63	0.22
June 2	89	67	0.00
June 3	92	63	0.00
June 4	92	63	0.01
June 5	90	57	0.00
June 6	89	63	0.15
June 7	82	61	0.00
June 8	82	55	0.00
June 9	85	47	0.00
June 10	82	62	0.01
June 11	72	45	0.00
June 12	80	41	0.02
June 13	88	55	0.00
June 14	91	54	0.00
June 15	90	57	0.00
June 16	80	49	0.00
June 17	86	50	0.21
June 18	83	65	0.21
June 19	89	62	0.00
June 20	90	60	0.00
June 21	91	60	0.00
June 22	93	63	0.00
June 23	93	60	0.00
June 24	83	64	1.12
June 25	78	64	0.07
June 26	82	62	0.00
June 27	86	58	0.00
June 28	86	66	0.17
June 29	91	67	0.00
June 30	86	66	0.01

July 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	82	68	1.52
July 2	89	67	0.03
July 3	89	65	0.00
July 4	90	68	0.25
July 5	81	61	0.00
July 6	76	54	0.00
July 7	73	48	0.05
July 8	80	53	0.00
July 9	82	54	0.00
July 10	89	61	0.00
July 11	83	64	0.00
July 12	81	63	0.92
July 13	86	64	0.86
July 14	85	65	0.00
July 15	83	65	0.01
July 16	81	62	0.00
July 17	77	57	0.00
July 18	80	54	0.00
July 19	83	57	0.00
July 20	81	63	0.00
July 21	83	58	0.00
July 22	86	57	0.00
July 23	88	58	0.00
July 24	91	57	0.00
July 25	94	65	0.00
July 26	95	73	0.00
July 27	94	69	0.00
July 28	98	70	0.31
July 29	86	66	0.00
July 30	86	59	0.00
July 31	87	61	0.00

August 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	89	61	0.00
August 2	82	65	0.00
August 3	89	65	0.00
August 4	92	64	0.00
August 5	89	65	0.00
August 6	74	65	0.53
August 7	83	66	0.03
August 8	85	63	0.00
August 9	81	59	0.00
August 10	88	58	0.00
August 11	91	66	0.26
August 12	86	64	0.00
August 13	75	60	0.07
August 14	78	61	0.00
August 15	83	54	0.00
August 16	86	53	0.00
August 17	79	56	0.00
August 18	82	48	0.00
August 19	95	65	0.00
August 20	97	72	0.00
August 21	95	70	0.00
August 22	99	71	0.00
August 23	105	79	0.00
August 24	103	76	0.00
August 25	90	71	0.23
August 26	84	64	0.00
August 27	82	58	0.00
August 28	86	53	0.00
August 29	88	60	0.00
August 30	83	55	0.00
August 31	83	47	0.00

September 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	90	58	0.00
September 2	98	56	0.00
September 3	100	61	0.00
September 4	100	69	0.00
September 5	93	73	0.13
September 6	73	64	0.00
September 7	75	52	0.00
September 8	81	48	0.00
September 9	86	48	0.00
September 10	81	59	0.12
September 11	79	50	0.02
September 12	79	45	0.04
September 13	74	46	0.00
September 14	84	45	0.00
September 15	78	57	0.00
September 16	81	51	0.00
September 17	80	46	0.00
September 18	82	41	0.00
September 19	77	59	0.01
September 20	80	58	0.06
September 21	84	51	0.00
September 22	71	64	1.30
September 23	84	65	0.01
September 24	84	57	0.01
September 25	81	55	0.01
September 26	75	59	0.19
September 27	77	59	0.00
September 28	77	60	0.00
September 29	90	61	0.00
September 30	94	67	0.00

October 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	93	67	0.00
October 2	90	59	0.00
October 3	89	63	0.00
October 4	78	52	0.02
October 5	74	43	0.00
October 6	55	43	0.05
October 7	61	42	0.00
October 8	69	42	0.00
October 9	62	35	0.00
October 10	64	30	0.00
October 11	66	29	0.04
October 12	55	50	0.67
October 13	58	51	1.52
October 14	58	45	0.00
October 15	58	42	0.00
October 16	61	35	0.00
October 17	69	32	0.00
October 18	70	49	0.00
October 19	60	46	0.00
October 20	72	40	0.00
October 21	68	40	0.00
October 22	62	30	0.00
October 23	78	48	0.20
October 24	81	62	0.00
October 25	67	60	0.01
October 26	72	64	0.72
October 27	66	35	0.15
October 28	36	32	0.00
October 29	39	28	0.00
October 30	41	24	0.00
October 31	41	26	0.00

November 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	46	20	0.00	0.0
November 2	56	26	0.00	0.0
November 3	57	35	0.00	0.0
November 4	59	32	0.00	0.0
November 5	67	32	0.00	0.0
November 6	68	38	0.00	0.0
November 7	54	35	0.00	0.0
November 8	60	41	0.00	0.0
November 9	58	31	0.00	0.0
November 10	43	28	0.00	0.0
November 11	52	21	0.00	0.0
November 12	64	34	0.00	0.0
November 13	65	29	0.00	0.0
November 14	67	29	0.00	0.0
November 15	67	35	0.00	0.0
November 16	65	43	0.00	0.0
November 17	49	24	0.00	0.0
November 18	62	24	0.00	0.0
November 19	60	26	0.00	0.0
November 20	49	39	0.06	0.0
November 21	44	30	0.01	0.0
November 22	48	23	0.00	0.0
November 23	42	26	0.00	0.0
November 24	32	17	0.00	0.0
November 25	30	21	0.03	0.3
November 26	35	24	0.14	1.8
November 27	26	10	0.00	0.0
November 28	27	0	0.00	0.0
November 29	49	18	0.00	0.0
November 30	48	27	0.00	0.0

December 2023 Waterloo Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	39	28	0.00	0.0
December 2	38	29	0.01	0.0
December 3	42	22	0.00	0.0
December 4	37	24	0.00	0.0
December 5	37	21	0.00	0.0
December 6	47	20	0.00	0.0
December 7	57	27	0.00	0.0
December 8	57	42	0.00	0.0
December 9	44	27	0.00	0.0
December 10	31	13	0.00	0.0
December 11	39	11	0.00	0.0
December 12	37	17	0.00	0.0
December 13	48	16	0.00	0.0
December 14	56	19	0.00	0.0
December 15	50	26	0.00	0.0
December 16	44	38	0.11	0.0
December 17	38	34	0.00	0.0
December 18	35	11	0.00	0.0
December 19	38	10	0.00	0.0
December 20	46	19	0.00	0.0
December 21	41	34	0.00	0.0
December 22	52	39	0.00	0.0
December 23	52	43	0.00	0.0
December 24	57	45	0.16	0.0
December 25	55	36	0.56	0.0
December 26	37	31	0.00	0.0
December 27	39	30	0.00	0.0
December 28	35	27	0.00	0.0
December 29	42	24	0.00	0.0
December 30	44	22	0.00	0.0
December 31	35	26	0.01	0.1

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Weather Station Details

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