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Waterloo January Precipitation Totals

A time series of total precipitation in the month of January in Waterloo, Iowa from 1896–2024.

Rainiest January in Waterloo History

The rainiest January in Waterloo, Iowa history happened in 2017, with 2.89 inches of total precipitation.

Driest January in Waterloo History

The driest January in Waterloo, Iowa history happened in 1948, with just 0.02 inches of total precipitation.

Waterloo Average January Precipitation by Year

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Year	Precipitation (inches)
2024	2.61
2023	2.02
2022	0.59
2021	1.41
2020	1.38
2019	1.52
2018	2.24
2017	2.89
2016	0.78
2015	1.00
2014	0.66
2013	1.30
2012	1.39
2011	1.11
2010	0.84
2009	0.74
2008	0.87
2007	0.73
2006	0.76
2005	1.42
2004	0.46
2003	0.37
2002	0.44
2001	1.10
2000	1.08
1999	1.61
1998	0.78
1997	0.80
1996	2.19
1995	0.80
1994	1.22
1993	0.58
1992	1.06
1991	0.76
1990	0.46
1989	1.09
1988	0.75
1987	0.47
1986	0.40
1985	0.61
1984	0.62
1983	0.84
1982	1.51
1981	0.23
1980	1.34
1979	1.41
1978	0.51
1977	0.37
1976	0.18
1975	0.92
1974	0.98
1973	1.16
1972	0.26
1971	1.76
1970	0.18
1969	1.56
1968	0.73
1967	1.53
1966	1.70
1965	1.11
1964	0.34
1963	0.49
1962	0.10
1961	0.31
1960	2.04
1959	0.52
1958	0.40
1957	0.42
1956	0.41
1955	0.41
1954	0.10
1953	0.58
1952	1.97
1951	0.10
1950	1.53
1949	2.78
1948	0.02
1942	1.23
1931	0.05
1919	0.40
1900	0.53
1896	0.36

Its possible for precipitation totals to include both rain and melted snowfall
Months with more than 10% missing data are excluded