Waterloo, IA: July

31 July 2026: July 2026 averaged 75.8°F in Waterloo, IA, the warmest July since 2020, tied 27th warmest of 132 (with 1937).

July 2026

Mean temperature: 75.8°F; Warmest since 2020; 27th warmest of 132
Precipitation: 7.11 in; Wettest since 2025; 19th wettest of 132

A normal July in Waterloo, IA (1991 to 2020): a mean temperature of 73.3°F, between 69.8°F and 77°F in eight years of ten and 3.71 in of precipitation, between 1.55 in and 6.91 in in eight years of ten.

The mean temperature of every July in Waterloo, IA since 1895: 75.8°F in 2026; the highest is 82.4°F, in 1936.

Normal range, 69.8 to 77°F

Every year, ranked, as a table

Every July in Waterloo, IA from 1895 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	75.8	27	85.5	58	66	12	7.11	19	0
2025	74.7	47	84.1	80	65.4	17	9.99	7	0
2024	73.5	70	82.8	97	64.3	27	5.39	36	0
2023	73.3	72	85.1	63	61.5	86	3.95	60	0
2022	75	43	85.8	53	64.2	30	3.50	70	0
2021	75.3	36	87.2	36	63.5	39	1.23	119	0
2020	77.4	12	88.1	21	66.7	5	3.05	85	0
2019	76.7	17	86.9	41	66.5	8	2.59	95	0
2018	71.7	101	82.7	99	60.7	96	3.60	67	0
2017	73.3	72	83.8	84	62.7	59	2.61	94	0
2016	72.8	81	81.9	109	63.6	37	4.01	59	0
2015	71.9	98	81.8	113	61.9	78	3.35	78	0
2014	68.9	127	79.9	125	57.9	127	1.14	121	0
2013	72.6	87	84.1	80	61	91	4.03	58	0
2012	79.3	4	92.3	5	66.4	10	0.76	129	0
2011	77.6	9	87.8	24	67.3	4	2.79	90	0
2010	74.4	50	83.6	87	65.1	20	10.95	4	0
2009	67.6	131	77.8	130	57.5	129	5.52	34	0
2008	73.9	61	84.3	77	63.5	39	5.51	35	0
2007	73	80	84.6	75	61.4	87	4.64	44	0
2006	75.1	40	85.7	54	64.6	25	4.83	42	0
2005	73.7	67	84.7	68	62.7	59	3.81	64	0
2004	69.9	123	81.1	121	58.7	120	2.19	105	0
2003	74	57	84.7	68	63.4	44	4.12	55	0
2002	76.3	22	87	40	65.6	16	6.46	21	0
2001	74	57	84.7	68	63.4	44	5.94	28	0
2000	71.8	100	81.9	109	61.7	83	3.40	74	0
1999	76.9	14	87.2	36	66.6	6	12.82	1	0
1998	72.7	84	84.7	68	60.7	96	0.33	132	0
1997	72.4	92	82.4	102	62.4	67	1.99	107	0
1996	71	113	81.9	109	60	108	2.38	99	0
1995	74.3	51	86.3	48	62.3	69	1.83	108	0
1994	70.6	117	80.9	123	60.3	104	6.11	24	0
1993	73.2	75	81.4	118	64.9	21	11.26	3	0
1992	67.9	130	77.2	131	58.5	123	5.87	30	0
1991	73.8	64	85.5	58	62.1	74	1.60	113	0
1990	71.7	101	81.4	118	62.1	74	9.63	9	0
1989	76	25	88.5	18	63.5	39	2.67	92	0
1988	75.9	26	89.6	11	62.2	70	1.51	115	0
1987	77	13	87.7	28	66.3	11	5.59	31	0
1986	75.1	40	85	65	65.2	18	3.24	83	0
1985	73.3	72	85.7	54	60.9	92	3.38	76	0
1984	70.3	118	82.1	106	58.5	123	6.04	27	0
1983	76.9	14	88	22	65.9	14	3.89	63	0
1982	74.5	49	84.8	67	64.3	27	3.90	62	0
1981	72.5	90	81.8	113	63.1	52	3.52	69	0
1980	75.6	31	87.5	33	63.7	35	1.75	110	0
1979	72.3	95	82.1	106	62.5	65	6.68	20	0
1978	72.2	96	81.8	113	62.6	63	3.74	65	0
1977	74.3	51	85.6	56	63	55	3.93	61	0
1976	73.8	64	86.5	47	61.1	90	2.83	89	0
1975	73.9	61	85.9	50	61.8	79	1.06	123	0
1974	75.5	34	86.7	43	64.2	30	3.32	80	0
1973	73.4	71	82.8	97	64.1	32	3.29	81	0
1972	70.1	121	79.5	126	60.8	95	5.29	39	0
1971	66.4	132	77	132	55.7	132	3.14	84	0
1970	72.5	90	84.2	78	60.7	96	4.13	54	0
1969	72.6	87	81.9	109	63.2	51	8.90	11	0
1968	70.7	115	81	122	60.5	101	12.60	2	0
1967	68.6	129	80.7	124	56.5	131	2.25	102	0
1966	75.6	31	86.9	41	64.4	26	6.06	25	0
1965	70.2	120	81.2	120	59.3	115	4.41	46	0
1964	75.7	29	87.5	33	64	33	3.48	71	0
1963	73.2	75	83.8	84	62.6	63	8.73	12	0
1962	69.7	125	78.8	127	60.6	100	7.35	18	0
1961	71.7	101	81.7	116	61.6	84	8.56	13	0
1960	71.1	111	83.2	88	59	118	2.20	104	0
1959	71.7	101	83.2	88	60.2	105	3.44	73	0
1958	69	126	78.8	127	59.1	117	5.37	37	0
1957	76.8	16	87.6	32	66	12	2.87	88	0
1956	71.6	107	83.1	91	60.2	105	4.27	49	0
1955	79.1	6	90.3	9	67.9	2	5.90	29	0
1954	76.5	19	87.7	28	65.2	18	0.43	130	0
1953	74.2	54	85.5	58	62.8	57	4.23	50	0
1952	75.6	31	87.8	24	63.4	44	2.39	97	0
1951	71.7	101	82.2	105	61.3	88	8.45	14	1
1950	70.3	118	81.7	116	58.8	119	2.35	100	0
1949	75.3	36	85.6	56	64.9	21	1.40	117	0
1948	74.2	54	85.1	63	63.3	50	2.76	91	0
1947	71.3	108	82.4	102	60.2	105	3.27	82	0
1946	72.4	92	82.9	96	61.8	79	2.63	93	0
1945	71.7	101	82.5	101	60.9	92	2.39	97	0
1944	71.2	110	83.1	91	59.3	115	5.59	31	0
1943	75	43	86	49	63.9	34	4.40	47	0
1942	73.2	75	84.1	80	62.2	70	10.43	6	0
1941	73.8	64	84.7	68	63	55	1.83	108	0
1940	76.3	22	89.1	14	63.5	39	9.70	8	0
1939	75.2	39	87.3	35	63.1	52	3.38	76	0
1938	76.3	22	87.7	28	64.8	23	5.55	33	0
1937	75.8	27	88.8	16	62.7	59	0.93	126	0
1936	82.4	1	98.3	1	66.5	8	0.40	131	0
1935	79.3	4	91	8	67.5	3	4.11	56	0
1934	77.6	9	89.4	12	65.8	15	5.32	38	0
1933	76.5	19	88.7	17	64.3	27	3.67	66	0
1932	75.5	34	88.5	18	62.5	65	2.40	96	0
1931	77.7	8	91.6	7	63.7	35	2.21	103	0
1930	76.4	21	89.4	12	63.5	39	4.46	45	0
1929	74.2	54	85.9	50	62.4	67	3.40	74	0
1928	73.7	67	85.3	61	62.1	74	3.34	79	0
1927	72.7	84	86.6	44	58.7	120	3.45	72	0
1926	74.7	47	86.6	44	62.8	57	4.16	52	0
1925	73.9	61	87.7	28	60	108	2.27	101	0
1924	69.9	123	83.1	91	56.7	130	7.69	17	0
1923	77.5	11	91.9	6	63.1	52	1.27	118	0
1922	70.7	115	82.7	99	58.7	120	6.44	22	0
1921	78.6	7	92.5	4	64.7	24	1.52	114	0
1920	71.3	108	83.1	91	59.5	113	4.97	40	0
1919	75.7	29	87.8	24	63.6	37	1.45	116	0
1918	71.9	98	84	83	59.7	110	4.21	51	0
1917	75.1	40	88	22	62.1	74	0.93	126	0
1916	80.6	3	94.7	3	66.6	6	1.06	123	0
1915	68.8	128	78.2	129	59.4	114	6.06	25	0
1914	76.6	18	89.8	10	63.4	44	1.08	122	0
1913	75	43	86.6	44	63.4	44	2.10	106	0
1912	73.2	75	84.7	68	61.8	79	6.23	23	0
1911	74	57	87.1	38	60.9	92	4.06	57	0
1910	75.3	36	89	15	61.6	84	0.84	128	0
1909	72.4	92	83	95	61.8	79	1.20	120	0
1908	74	57	85.9	50	62.2	70	4.87	41	0
1907	74.3	51	85.3	61	63.4	44	4.80	43	0
1906	71	113	84.2	78	57.8	128	3.01	87	0
1905	71.1	111	82.4	102	59.7	110	4.35	48	0
1904	70	122	82.1	106	58	125	3.56	68	0
1903	72.8	81	84.5	76	61.2	89	9.08	10	0
1902	72.7	84	83.2	88	62.2	70	10.61	5	0
1901	81.9	2	95.6	2	68.2	1	3.04	86	0
1900	72.1	97	83.8	84	60.5	101	7.92	16	0
1899	72.8	81	84.9	66	60.7	96	1.61	112	0
1898	73.7	67	87.8	24	59.6	112	1.66	111	0
1897	74.9	46	87.1	38	62.7	59	4.16	52	0
1896	72.6	87	84.7	68	60.5	101	7.93	15	0
1895	73.1	79	88.2	20	58	125	1.03	125	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1936	82.4
1901	81.9
1916	80.6
2012	79.3
1935	79.3
1955	79.1
1921	78.6
1931	77.7
2011	77.6
1934	77.6

Coldest
Year	Mean, °F
1971	66.4
2009	67.6
1992	67.9
1967	68.6
1915	68.8
2014	68.9
1958	69
1962	69.7
2004	69.9
1924	69.9

Wettest
Year	Precipitation, in
1999	12.82
1968	12.60
1993	11.26
2010	10.95
1902	10.61
1942	10.43
2025	9.99
1940	9.70
1990	9.63
1903	9.08

Driest
Year	Precipitation, in
1998	0.33
1936	0.40
1954	0.43
2012	0.76
1910	0.84
1937	0.93
1917	0.93
1895	1.03
1975	1.06
1916	1.06

The hottest, coldest and wettest days

Hottest day: 96°F; 26 July 2026
Coldest night: 56°F; 22 July 2026
Wettest day: 1.99 in; 20 July 2026

Every month, season and year

Months

Seasons

Years

Waterloo, IA the day's answers

All-time records

Every answer in words

July 2026 brought 7.11 in of precipitation in Waterloo, IA, the wettest July since 2025, 19th wettest of 132.
The hottest day of July 2026 in Waterloo, IA: 96°F on Sunday 26 July 2026.
The coldest night of July 2026 in Waterloo, IA: a low of 56°F on Wednesday 22 July 2026.
The wettest day of July 2026 in Waterloo, IA: 1.99 in on Monday 20 July 2026.