Waterloo, IA: October

9 October 2026: October 2026 so far averaged 60.4°F in Waterloo, IA, the warmest 1 to 9 October since 2025, tied 28th warmest of 130 (with 2024).

October 2026 so far, to 9 October 2026

Mean temperature: 60.4°F; Warmest since 2025; 28th warmest of 130
Precipitation: 2.95 in; Wettest since 2019; 6th wettest of 131

A normal 1 to 9 October in Waterloo, IA (1991 to 2020): a mean temperature of 55.2°F, between 49.6°F and 61.4°F in eight years of ten and 0.67 in of precipitation, between 0.00 in and 2.34 in in eight years of ten.

The mean temperature of every 1 to 9 October in Waterloo, IA since 1895: 60.4°F in 2026; the highest is 68.2°F, in 1997.

Normal range, 49.6 to 61.4°F

Every year, ranked, as a table

Every 1 to 9 October 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	60.4	28	74.2	25	46.6	42	2.95	6	0
2025	65.9	4	79	5	52.9	7	0.31	82	0
2024	60.4	28	77.4	7	43.3	69	0.01	105	0
2023	62.1	20	74.6	22	49.6	19	0.07	101	0
2022	55.2	73	69.9	52	40.4	91	0.26	87	0
2021	68	2	77.4	7	58.6	1	0.86	46	0
2020	54.7	79	69	62	40.4	91	trace	109	0
2019	57.5	52	66.9	79	48.1	28	4.07	2	0
2018	54.9	75	62	109	47.8	31	5.30	1	0
2017	62.4	16	73.4	31	51.3	14	2.56	8	0
2016	58.7	39	71.4	42	46	45	0.05	103	0
2015	54.3	86	66.7	81	41.9	80	trace	109	0
2014	51.2	108	61.9	111	40.6	90	0.69	53	0
2013	60.6	26	73.1	33	48.1	28	0.93	43	0
2012	49.3	118	62.2	108	36.3	119	0.21	93	0
2011	61.3	23	77.8	6	44.9	59	0.00	114	0
2010	55.4	72	72.8	35	38.1	110	0.01	105	0
2009	47.6	125	55.4	131	39.7	99	1.84	17	0
2008	54.4	83	67.4	73	41.3	85	0.64	58	0
2007	66.4	3	76.7	14	56.1	2	2.28	13	0
2006	60.1	31	74.4	24	45.8	47	0.00	114	0
2005	58.3	45	69.4	58	47.2	37	0.33	78	0
2004	52.8	94	68.3	68	37.3	114	0.98	40	0
2003	55.6	70	71.3	43	39.8	97	0.00	114	0
2002	56.2	66	67.2	74	45.1	55	1.10	36	0
2001	54.4	83	66.2	86	42.6	75	0.97	41	0
2000	47.1	126	59.1	124	35	126	0.56	62	0
1999	50.5	113	64	98	37	116	0.31	82	0
1998	50.7	111	58.7	125	42.7	74	2.31	12	0
1997	68.2	1	83	1	53.3	6	1.53	25	0
1996	52.1	101	65.1	94	39	108	0.09	100	0
1995	52.8	94	65	95	40.7	89	1.16	32	0
1994	57.9	49	66.6	83	49.2	20	0.62	59	0
1993	56.3	65	69.2	59	43.3	69	1.46	27	0
1992	60.3	30	74.7	21	46	45	0.30	85	0
1991	49.6	117	62.7	103	36.6	118	1.79	19	0
1990	55.8	69	66.9	79	44.8	61	0.81	48	0
1989	47.8	124	61.1	116	34.6	127	0.66	55	0
1988	46.8	127	62	109	31.7	129	trace	109	0
1987	48.2	121	61.8	112	34.6	127	0.00	114	0
1986	53.3	90	63.3	100	43.2	72	1.19	31	0
1985	48.2	121	58.7	125	37.8	112	0.48	71	0
1984	58.7	39	69.8	55	47.6	34	0.52	67	0
1983	57.5	52	69.6	57	45.4	53	0.52	67	0
1982	59.8	33	73	34	46.6	42	0.87	44	0
1981	46.6	128	58	128	35.2	124	0.32	79	0
1980	51.7	104	65.3	93	38.1	110	0.01	105	0
1979	51.6	106	62.7	103	40.4	91	0.71	52	0
1978	50.9	109	59.4	122	42.4	77	0.87	44	0
1977	46.4	129	56.2	129	36.7	117	0.96	42	0
1976	51.7	104	67.1	76	36.3	119	0.44	74	0
1975	54.9	75	71.6	41	38.2	109	0.00	114	0
1974	48.7	119	61.2	115	36.2	121	1.06	37	0
1973	60.9	24	69.8	55	52.1	10	0.13	97	0
1972	53.9	88	66.1	87	41.8	81	0.80	50	0
1971	56.4	62	68	71	44.8	61	0.12	98	0
1970	56.7	59	68.9	64	44.4	63	2.54	9	0
1969	60	32	72	38	48	30	0.56	62	0
1968	50.3	114	60.9	120	39.7	99	2.62	7	0
1967	55.5	71	66.1	87	44.9	59	1.64	21	0
1966	55.9	67	70.9	45	41	87	trace	109	0
1965	52.8	94	63	101	42.6	75	0.06	102	0
1964	48.4	120	61.1	116	35.7	123	0.28	86	0
1963	65.2	7	82.7	2	47.8	31	0.00	114	0
1962	58	48	65	95	51	15	2.45	10	0
1961	58.1	46	70.7	46	45.6	50	0.00	114	0
1960	54.5	81	69	62	40	95	0.00	114	0
1959	52.4	99	59.3	123	45.6	50	1.52	26	0
1958	57.1	56	70	51	44.1	65	1.00	39	0
1957	54.5	81	67	78	42	79	0.21	93	0
1956	54.9	75	70.4	48	39.4	103	0.01	105	0
1955	59.1	36	69.2	59	48.9	24	0.83	47	0
1954	56.6	60	63.9	99	49.2	20	1.31	30	0
1953	58.4	43	74.1	26	42.8	73	0.00	114	0
1952									1
1951			68.1	70			2.09	15	1
1950	55.1	74	65.7	91	44.4	63	0.81	48	0
1949	63.4	12	74.1	26	52.8	8	0.34	77	0
1948	52.4	99	63	101	41.8	81	2.17	14	0
1947	63.4	12	73.2	32	53.7	5	1.37	29	0
1946	62.2	18	75.3	19	49	22	0.00	114	0
1945	51.4	107	61.6	114	41.3	85	0.24	89	0
1944	54.1	87	60.8	121	47.4	36	0.60	60	0
1943	55.9	67	72.4	36	39.3	104	0.00	114	0
1942	61.8	22	74.6	22	49	22	1.15	33	0
1941	57.6	51	68.6	66	46.7	41	1.65	20	0
1940	57.4	54	69.9	52	45	56	1.04	38	0
1939	62.3	17	76.9	11	47.7	33	0.69	53	0
1938	64.5	9	76.6	15	52.4	9	0.17	96	0
1937	58.1	46	67.8	72	48.4	26	0.53	65	0
1936	56.5	61	66.7	81	46.3	44	0.47	72	0
1935	43.4	130	55.7	130	31.1	130	0.23	90	0
1934	58.9	37	72.1	37	45.8	47	0.00	114	0
1933	52.7	97	65.8	90	39.6	101	0.32	79	0
1932	53.3	90	65.6	92	41	87	0.51	69	0
1931	64.3	10	76.8	12	51.8	12	0.53	65	0
1930	60.9	24	69.9	52	52	11	1.62	22	0
1929	52.1	101	64.4	97	39.8	97	trace	109	0
1928	60.5	27	75.7	17	45.3	54	0.22	91	0
1927	52.7	97	61.7	113	43.8	67	2.98	5	0
1926	58.8	38	69.2	59	48.4	26	2.41	11	0
1925	50.7	111	58.1	127	43.3	69	1.42	28	0
1924	58.6	42	70.4	48	46.8	39	0.32	79	0
1923	54.6	80	68.8	65	40.4	91	0.66	55	0
1922	63.9	11	77.3	9	50.6	16	1.82	18	0
1921	51.9	103	66.6	83	37.3	114	0.25	88	0
1920	56.4	62	76.6	15	36.2	121	0.00	114	0
1919	65.9	4	77.1	10	54.8	4	3.26	3	0
1918	59.2	35	71.7	40	46.8	39	0.20	95	0
1917	48.1	123	61	119	35.1	125	0.00	114	0
1916	59.8	33	75.7	17	43.9	66	0.00	114	0
1915	50.2	115	61.1	116	39.3	104	0.65	57	0
1914	65.2	7	75.1	20	55.2	3	3.13	4	0
1913	62.1	20	74.1	26	50.1	18	1.62	22	0
1912	56.8	58	71.2	44	42.4	77	1.13	35	0
1911	53	92	62.3	107	43.7	68	1.94	16	0
1910	58.4	43	71.9	39	45	56	0.02	104	0
1909	62.7	15	76.8	12	48.6	25	0.45	73	0
1908	53	92	66.4	85	39.6	101	0.58	61	0
1907	57.2	55	68.6	66	45.8	47	1.15	33	0
1906	54.9	75	70.6	47	39.2	106	0.00	114	0
1905	65.6	6	80.7	3	50.4	17	0.78	51	0
1904	58.7	39	70.3	50	47	38	0.51	69	0
1903	56.4	62	67.2	74	45.6	50	1.55	24	0
1902	53.8	89	66.1	87	41.6	84	0.37	75	0
1901	54.4	83	67.1	76	41.7	83	0.22	91	0
1900	62.8	14	74.1	26	51.6	13	0.36	76	0
1899	56.9	57	73.9	30	40	95	0.00	114	0
1898	57.9	49	68.2	69	47.6	34	0.55	64	0
1897	62.2	18	79.3	4	45	56	0.00	114	0
1896	50.8	110	62.4	106	39.2	106	0.11	99	0
1895	50.2	115	62.6	105	37.8	112	0.31	82	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1997	68.2
2021	68
2007	66.4
2025	65.9
1919	65.9
1905	65.6
1963	65.2
1914	65.2
1938	64.5
1931	64.3

Coldest
Year	Mean, °F
1935	43.4
1977	46.4
1981	46.6
1988	46.8
2000	47.1
2009	47.6
1989	47.8
1917	48.1
1987	48.2
1985	48.2

Wettest
Year	Precipitation, in
2018	5.30
2019	4.07
1919	3.26
1914	3.13
1927	2.98
2026	2.95
1968	2.62
2017	2.56
1970	2.54
1962	2.45

Driest
Year	Precipitation, in
2011	0.00
2006	0.00
2003	0.00
1987	0.00
1975	0.00
1963	0.00
1961	0.00
1960	0.00
1953	0.00
1946	0.00
More years share the last value

The hottest, coldest and wettest days

Hottest day: 81°F; 6 October 2026
Coldest night: 40°F; 5 October 2026
Wettest day: 2.91 in; 1 October 2026

Every month, season and year

Months

Seasons

Years

Waterloo, IA the day's answers

All-time records

Every answer in words

October 2026 so far brought 2.95 in of precipitation in Waterloo, IA, the wettest 1 to 9 October since 2019, 6th wettest of 131.
The hottest day of October 2026 so far in Waterloo, IA: 81°F on Tuesday 6 October 2026.
The coldest night of October 2026 so far in Waterloo, IA: a low of 40°F on Monday 5 October 2026.
The wettest day of October 2026 so far in Waterloo, IA: 2.91 in on Thursday 1 October 2026.