Average January Temperature in Waterloo by Year

This page contains a list of the average monthly high and low temperatures in Waterloo, Iowa for the month of January each year between 1896 and 2024. It is based on NOAA data.

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What Was the Hottest January Ever in Waterloo?

1933 was the warmest January in the history of Waterloo, Iowa. The average daily high temperature was 40.6 °F, and the average low was 21.5 °F.

What Was the Coldest January Ever in Waterloo?

1977 was the coolest January in the history of Waterloo, Iowa. The average daily high temperature was 11.7 °F, and the average low was -11.9 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2024	31	27.9	15.9
2023	23	30.5	16.1
2022	103	23.3	2.1
2021	32	29.7	13.6
2020	25	30.7	15.6
2019	85	24.7	6.4
2018	71	27.8	7.5
2017	21	29.5	17.6
2016	58	25.8	11.6
2015	42	29.7	11.5
2014	113	21.2	-1.1
2013	38	31.0	11.0
2012	20	34.7	13.3
2011	95	21.7	5.7
2010	106	18.9	5.5
2009	110	20.9	0.9
2008	91	23.2	5.8
2007	46	29.0	11.1
2006	2	38.8	22.8
2005	72	25.5	9.7
2004	79	25.4	7.8
2003	48	29.8	10.0
2002	3	40.3	19.4
2001	60	27.5	9.6
2000	49	29.1	10.6
1999	88	23.6	6.5
1998	27	29.3	15.9
1997	96	22.4	4.9
1996	89	26.2	3.7
1995	70	24.9	10.8
1994	120	16.7	-1.9
1993	66	27.1	9.5
1992	14	33.6	16.7
1991	108	22.3	1.5
1990	4	39.3	19.0
1989	7	34.8	19.5
1988	97	22.5	3.9
1987	35	30.0	13.0
1986	52	28.4	10.3
1985	105	22.3	2.8
1984	83	23.6	8.5
1983	19	31.6	16.6
1982	125	12.4	-5.3
1981	53	31.0	7.5
1980	55	26.8	11.2
1979	124	11.9	-4.6
1978	126	12.6	-7.2
1977	128	11.7	-11.9
1976	80	28.4	4.7
1975	62	27.6	9.3
1974	75	23.9	10.4
1973	57	26.8	10.8
1972	112	19.8	0.6
1971	118	16.5	-1.2
1970	123	14.2	-3.8
1969	102	20.1	5.6
1968	68	26.7	9.2
1967	45	29.8	10.6
1966	117	18.3	-2.8
1965	93	23.1	4.7
1964	17	34.5	14.2
1963	121	15.7	-2.0
1962	109	21.3	1.9
1961	84	26.2	5.7
1960	50	28.1	11.0
1959	100	23.0	2.9
1958	33	28.6	14.6
1957	107	21.8	2.2
1956	81	26.5	6.1
1955	54	26.8	11.4
1954	59	30.0	7.2
1953	29	29.7	14.2
1952	56	29.1	9.0
1951	90	23.5	5.5
1950	64	30.1	6.5
1949	65	27.7	8.8
1948	77	26.7	6.9
1947	16	33.9	15.1
1946	43	30.0	11.0
1945	76	25.2	9.0
1944	5	39.5	17.9
1943	86	25.0	5.7
1942	61	27.8	9.2
1941	22	30.6	16.1
1940	114	18.1	0.7
1939	6	35.4	19.8
1938	69	27.0	8.8
1937	104	23.9	1.4
1936	116	17.7	-0.7
1935	73	26.3	8.9
1934	11	33.7	17.4
1933	1	40.6	21.5
1932	28	29.9	14.7
1931	8	36.6	17.8
1930	115	20.2	-2.0
1929	119	18.2	-3.3
1928	24	32.7	13.8
1927	47	28.6	11.4
1926	37	30.7	11.4
1925	39	30.6	11.4
1924	94	24.4	3.1
1923	15	32.7	16.6
1922	74	28.1	6.6
1921	9	35.4	18.9
1920	98	22.0	4.3
1919	12	35.3	15.5
1918	122	15.8	-3.8
1917	99	24.6	1.4
1916	78	26.0	7.3
1915	92	24.0	4.6
1914	13	34.1	16.5
1913	51	30.1	8.9
1912	127	13.5	-9.6
1910	87	25.1	5.2
1909	40	30.2	11.5
1908	10	36.3	15.3
1907	67	26.7	9.6
1906	26	32.3	13.3
1905	111	20.3	0.2
1904	101	22.1	3.7
1903	34	29.6	13.4
1902	44	30.4	10.5
1901	30	31.6	12.3
1900	18	32.2	16.0
1899	63	27.9	8.7
1898	36	31.3	11.3
1897	82	24.8	7.6
1896	41	28.6	12.7

Weather Station Details

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