Dubuque, IA: August

31 August 2026: August 2026 averaged 70.7°F in Dubuque, IA, the coldest August since 2025, tied 66th coldest of 153 (with 2020, 1919 and 1888).

August 2026

Mean temperature: 70.7°F; Coldest since 2025; 66th coldest of 153
Precipitation: 1.59 in; Driest since 2020; 22nd driest of 154

A normal August in Dubuque, IA (1991 to 2020): a mean temperature of 70.5°F, between 66.4°F and 72.4°F in eight years of ten and 3.34 in of precipitation, between 1.53 in and 7.83 in in eight years of ten.

The mean temperature of every August in Dubuque, IA since 1874: 70.7°F in 2026; the lowest is 64.4°F, in 1992.

Normal range, 66.4 to 72.4°F

Every year, ranked, as a table

Every August in Dubuque, IA from 1873 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	70.7	85	79.4	114	62	55	1.59	133	0
2025	70.3	96	79.6	108	61.1	75	5.45	36	0
2024	71.4	62	81.5	60	61.3	70	2.73	97	0
2023	71.3	64	81.4	65	61.2	72	4.01	61	0
2022	71	74	80.1	95	62	55	5.39	37	0
2021	72.3	46	82.5	42	62.1	54	5.53	34	0
2020	70.7	85	82.2	48	59.2	113	1.41	142	0
2019	68.3	131	78	133	58.5	127	5.02	42	0
2018	71.4	62	80.4	87	62.4	50	7.81	12	0
2017	66	148	75.9	147	56	146	3.23	85	0
2016	72.1	52	80.9	73	63.4	31	3.75	71	0
2015	68.8	120	78.7	125	58.9	120	2.52	103	0
2014	70.2	98	79.7	105	60.7	85	3.12	89	0
2013	70.4	92	80.5	81	60.3	93	2.98	92	0
2012	69.7	108	81.8	56	57.7	137	4.01	61	0
2011	70.5	89	80.3	92	60.7	85	3.30	82	0
2010	72.9	35	81.9	53	63.8	26	3.60	74	0
2009	66.6	145	75.2	149	58	131	8.78	6	0
2008	68.8	120	79.2	116	58.4	129	1.54	136	0
2007	72.3	46	80.7	78	63.9	25	6.04	26	0
2006	70.8	81	79.6	108	61.9	59	1.97	119	0
2005	70.8	81	81.7	57	59.8	106	5.07	41	0
2004	65	151	75	151	54.9	151	3.19	86	0
2003	72.9	35	84.2	24	61.6	63	0.25	152	0
2002	69.9	105	80.5	81	59.2	113	9.71	2	0
2001	71.2	69	80.8	76	61.6	63	3.79	70	0
2000	71.1	70	80.2	93	62	55	2.36	108	0
1999	68.1	135	76.9	139	59.2	113	2.87	94	0
1998	71.9	54	80.5	81	63.4	31	6.31	23	0
1997	67.4	139	76.1	145	58.8	122	3.37	79	0
1996	70.4	92	80.7	78	60	102	1.98	118	0
1995	76.9	4	86.5	7	67.3	3	0.29	150	0
1994	66.4	147	76	146	56.8	144	6.67	19	0
1993	71.1	70	79.7	105	62.5	49	8.05	9	0
1992	64.4	153	74.9	152	53.8	153	1.63	131	0
1991	71.3	64	81.2	70	61.3	70	3.90	68	0
1990	70.8	81	80	97	61.6	63	8.01	11	0
1989	67.9	136	78.2	130	57.5	140	4.35	52	0
1988	74.7	11	86.3	8	63.1	36	3.73	72	0
1987	69.1	115	77.7	135	60.4	92	9.90	1	0
1986	65	151	74.8	153	55.1	150	4.29	53	0
1985	67.1	141	77.3	136	56.9	142	3.44	77	0
1984	72.3	46	84.4	21	60.3	93	1.37	143	0
1983	76.6	6	87.8	3	65.4	6	2.23	111	0
1982	70.4	92	80	97	60.8	80	2.46	105	0
1981	69.9	105	80	97	59.7	107	9.65	3	0
1980	73	34	81.9	53	64.1	19	9.11	5	0
1979	69.7	108	78.6	126	60.8	80	7.47	13	0
1978	71	74	82.5	42	59.4	110	1.10	145	0
1977	66.5	146	75.3	148	57.7	137	6.02	27	0
1976	68.9	118	80.9	73	56.9	142	3.67	73	0
1975	71.1	70	80.5	81	61.7	61	7.44	14	0
1974	67	144	76.2	144	57.9	133	4.06	59	0
1973	72.3	46	82	52	62.6	45	1.54	136	0
1972	71.6	59	80.6	80	62.6	45	6.02	27	0
1971	67.1	141	78.1	131	56.1	145	2.60	99	0
1970	70.5	89	79.9	101	61.2	72	4.13	58	0
1969	71.7	57	83.4	33	60	102	0.08	154	0
1968	70.3	96	79.7	105	60.8	80	5.26	39	0
1967	65.6	149	76.4	142	54.9	151	3.82	69	0
1966	68.2	134	80.4	87	55.9	148	1.96	120	0
1965	68.3	131	77.3	136	59.4	110	8.33	8	0
1964	67.8	138	78	133	57.7	137	4.03	60	0
1963	68.9	118	79	120	58.8	122	6.62	20	0
1962	70.1	99	80.4	87	59.9	104	2.05	114	0
1961	71	74	81.1	71	60.8	80	5.18	40	0
1960	71.3	64	81.3	67	61.2	72	3.93	67	0
1959	74	27	82.7	39	65.4	6	6.50	22	0
1958	69.8	107	81.1	71	58.6	126	4.87	43	0
1957	69.5	113	79.5	112	59.5	109	6.01	29	0
1956	70.8	81	81.5	60	60.1	101	3.55	76	0
1955	74.5	14	85.9	10	63.2	34	1.65	130	0
1954	69	116	78.8	122	59.1	116	4.28	55	0
1953	71.3	64	81.9	53	60.7	85	2.55	102	0
1952	68.6	124	78.3	129	58.9	120	5.50	35	0
1951	67.9	136	76.7	141	59.1	116	4.63	46	0
1950	68.4	129	78.1	131	58.8	122	1.08	146	0
1949	74.2	19	84.2	24	64.2	18	3.09	90	0
1948	74.2	19	84.3	23	64.1	19	3.17	88	0
1947	80.6	1	90.8	1	70.4	1	2.60	99	0
1946	70	103	80	97	59.9	104	3.18	87	0
1945	72.6	42	82.4	45	62.8	39	3.26	84	0
1944	72.9	35	82.6	41	63.2	34	4.52	48	0
1943	74	27	83	36	64.9	11	6.59	21	0
1942	72	53	81.3	67	62.6	45	2.80	96	0
1941	74.7	11	85	16	64.4	15	1.67	129	0
1940	71	74	79.2	116	62.8	39	6.72	18	0
1939	71.9	54	82.3	47	61.5	68	4.27	56	0
1938	75	9	84.8	17	65.3	8	6.10	24	0
1937	77.1	3	87.8	3	66.4	4	1.63	131	0
1936	76.7	5	88.9	2	64.6	14	4.68	45	0
1935	73.1	32	82.7	39	63.5	30	4.62	47	0
1934	70.9	79	81.3	67	60.6	88	3.29	83	0
1933	70.5	89	80.8	76	60.2	98	2.32	109	0
1932	72.3	46	81.6	58	63	37	3.96	64	0
1931	73.1	32	83.8	29	62.4	50	2.02	116	0
1930	74.2	19	85.1	14	63.3	33	1.92	122	0
1929	70.4	92	80.5	81	60.2	98	1.83	125	0
1928	71.8	56	81.5	60	62	55	9.38	4	0
1927	67.4	139	78.8	122	55.9	148	1.47	141	0
1926	72.8	39	81.5	60	64.1	19	1.85	124	0
1925	72.2	51	82.8	38	61.7	61	1.91	123	0
1924	70	103	79.1	118	61	76	7.05	16	0
1923	69.6	112	79.1	118	60.2	98	4.77	44	0
1922	72.5	45	82.2	48	62.8	39	1.99	117	0
1921	71.6	59	80.4	87	62.7	44	4.29	53	0
1920	69.7	108	80.2	93	59.1	116	3.44	77	0
1919	70.7	85	80.5	81	61	76	1.58	134	0
1918	74.5	14	84.1	27	65	10	6.09	25	0
1917	68.5	127	79.3	115	57.8	135	2.11	113	0
1916	75.1	8	85.8	11	64.4	15	1.49	140	0
1915	65.6	149	75.2	149	56	146	2.84	95	0
1914	72.9	35	82.9	37	62.8	39	4.01	61	0
1913	74.1	26	84.5	20	63.8	26	3.60	74	0
1912	69.7	108	78.5	128	60.9	78	6.79	17	0
1911	70.1	99	79.9	101	60.3	93	8.74	7	0
1910	72.7	40	83.1	34	62.4	50	3.96	64	0
1909	75	9	84.8	17	65.3	8	1.50	139	0
1908	69.5	113	80.1	95	59	119	2.92	93	0
1907	70.1	99	79.6	108	60.6	88	5.85	33	0
1906	74.2	19	83.5	32	64.9	11	4.44	49	0
1905	73.5	31	82.2	48	64.8	13	3.07	91	0
1904	68.8	120	79.9	101	57.8	135	2.58	101	0
1903	68.4	129	77.1	138	59.7	107	5.27	38	0
1902	68.6	124	76.8	140	60.3	93	1.57	135	0
1901	73.6	30	84.6	19	62.6	45	0.25	152	0
1900	78	2	87.7	5	68.2	2	3.35	80	0
1899	74.3	17	85.1	14	63.6	28	1.95	121	0
1898	71.3	64	80.9	73	61.6	63	4.37	51	0
1897	68.6	124	78.9	121	58.4	129	1.51	138	0
1896	72.7	40	83.1	34	62.2	53	2.05	114	0
1895	74.5	14	86.1	9	62.8	39	1.75	126	0
1894	74.3	17	87.2	6	61.4	69	1.32	144	0
1893	70.9	79	82.4	45	59.4	110	0.58	149	0
1892	72.6	42	82.2	48	63	37	2.51	104	0
1891	70.1	99	79.8	104	60.5	91	3.31	81	0
1890	68.8	120	78.8	122	58.8	122	6.00	30	0
1889	71.6	59	82.5	42	60.6	88	0.26	151	0
1888	70.7	85	80.4	87	60.9	78	1.73	127	0
1887	71	74	81.6	58	60.3	93	4.40	50	0
1886	74.7	11	85.8	11	63.6	28	0.67	148	0
1885	67.1	141	76.4	142	57.9	133	8.02	10	0
1884	69	116	79.6	108	58.5	127	4.25	57	0
1883	68.3	131	78.6	126	58	131	2.70	98	0
1882	71.1	70	81.4	65	60.8	80	2.29	110	0
1881	75.6	7	85.4	13	65.9	5	2.46	105	0
1880	73.9	29	83.8	29	64.1	19	7.15	15	0
1879	71.7	57	81.5	60	61.9	59	2.43	107	0
1878	74.2	19	84.2	24	64.1	19	1.72	128	0
1877	72.6	42	83.6	31	61.6	63	3.96	64	0
1876	74.2	19	84.4	21	64	24	5.92	31	0
1875	68.5	127	79.5	112	57.5	140	1.07	147	0
1874	74.2	19	84.1	27	64.3	17	2.13	112	0
1873							5.88	32	31

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1947	80.6
1900	78
1937	77.1
1995	76.9
1936	76.7
1983	76.6
1881	75.6
1916	75.1
1938	75
1909	75

Coldest
Year	Mean, °F
1992	64.4
2004	65
1986	65
1967	65.6
1915	65.6
2017	66
1994	66.4
1977	66.5
2009	66.6
1974	67

Wettest
Year	Precipitation, in
1987	9.90
2002	9.71
1981	9.65
1928	9.38
1980	9.11
2009	8.78
1911	8.74
1965	8.33
1993	8.05
1885	8.02

Driest
Year	Precipitation, in
1969	0.08
2003	0.25
1901	0.25
1889	0.26
1995	0.29
1893	0.58
1886	0.67
1875	1.07
1950	1.08
1978	1.10

The hottest, coldest and wettest days

Hottest day: 87°F; 31 August 2026
Coldest night: 51°F; 24 August 2026
Wettest day: 0.39 in; 11 August 2026

Every month, season and year

Months

Seasons

Years

Dubuque, IA the day's answers

All-time records

Every answer in words

August 2026 brought 1.59 in of precipitation in Dubuque, IA, the driest August since 2020, 22nd driest of 154.
The hottest day of August 2026 in Dubuque, IA: 87°F on Monday 31 August 2026.
The coldest night of August 2026 in Dubuque, IA: a low of 51°F on Monday 24 August 2026.
The wettest day of August 2026 in Dubuque, IA: 0.39 in on Tuesday 11 August 2026.