Waterloo December 20 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of December 20.

December 20 All-Time Records 1895–2024
Highest temperature	53 °F	1967
Lowest temperature	-20 °F	1983
Lowest daily high	-5 °F	1963
Highest daily low	39 °F	1923
Most precipitation	0.78 inches	2006
Most snow	4.5 inches	2012

December 20 All-Time Records
1895–2024

Highest temperature

53 °F

-20 °F

-5 °F

Highest daily low

39 °F

0.78 inches

4.5 inches

December 20 Average Weather 1991–2020 ¹
Average high	31.3 °F
Average low	14.6 °F
Chance precipitation	27.9%
Chance snow	19.3%

December 20 Average Weather
1991–2020 ¹

Average high

31.3 °F

Average low

14.6 °F

Chance precipitation

27.9%

Chance snow

19.3%

Waterloo December 20 Weather by Year

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	46	19	0.00	0.0
2022	28	-4	0.00	0.0
2021	38	14	0.00	0.0
2020	37	21	0.00	0.0
2019	51	24	0.00	0.0
2018	37	32	0.00	0.0
2017	34	16	0.00	0.0
2016	36	15	0.00	0.0
2015	48	29	0.02	0.0
2014	32	29	0.00	0.0
2013	28	22	0.01	0.0
2012	31	11	0.37	4.5
2011	34	20	0.00	0.0
2010	29	16	0.19	3.2
2009	24	20	0.15	2.2
2008	25	-6	0.10	1.5
2007	33	24	0.00	0.0
2006	36	20	0.78	0.0
2005	17	-2	0.00	0.0
2004	34	13	0.05	0.8
2003	32	9	0.00	0.0
2002	34	30	0.02	0.2
2001	43	16	0.00	0.0
2000	15	-10	0.24	2.8
1999	18	-7	0.00	0.0
1998	22	10	0.02	0.3
1997	33	18	0.00	0.0
1996	24	-6	0.00	0.0
1995	26	14	0.00	0.0
1994	40	27	0.00	0.0
1993	31	20	0.00	0.0
1992	27	3	0.00	0.0
1991	34	29	0.50	0.8
1990	35	-1	0.00	0.0
1989	2	-14	0.01	0.8
1988	48	24	0.00	0.0
1987	34	22	0.01	0.1
1986	30	13	0.00	0.0
1985	6	-18	0.00	0.0
1984	35	11	0.00	0.0
1983	12	-20	0.05	1.1
1982	37	20	0.00	0.0
1981	32	-4	0.19	0.7
1980	10	-5	0.00	0.0
1979	44	22	0.00	0.0
1978	34	16	0.01	0.1
1977	21	14	0.01	0.1
1976	19	-1	0.00	0.0
1975	33	10	0.00	0.0
1974	25	9	0.05	0.8
1973	7	-9	0.00	0.0
1972	32	29	0.00	0.0
1971	25	12	0.00	0.0
1970	12	-4	0.00	0.0
1969	21	-5	0.02	0.3
1968	24	11	0.00	0.0
1967	53	34	0.00	0.0
1966	37	30	0.00	0.0
1965	33	17	0.01	0.1
1964	21	9	0.00	0.0
1963	-5	-19	0.00	0.0
1962	31	20	0.00	0.0
1961	21	5	0.05	0.5
1960	17	-1	0.03	0.2
1959	34	28	0.07	0.9
1958	22	7	0.02	0.2
1957	40	31	0.00	0.0
1956	28	16	0.00	0.0
1955	12	-11	0.00	0.0
1954	32	11	0.00	0.0
1953	40	32	0.00	0.0
1952	31	28	0.60	n/a
1951	24	19	0.08	1.0
1950	17	-10	0.00	0.0
1949	42	24	0.00	0.0
1948	37	19	0.06	0.6
1947	40	28	0.00	0.0
1946	36	20	n/a	n/a
1945	12	1	0.00	0.0
1944	31	20	0.00	0.0
1943	42	12	0.00	0.0
1942	15	5	n/a	n/a
1941	44	27	0.00	0.0
1940	33	27	0.00	0.0
1939	29	22	0.00	0.0
1938	36	27	0.00	0.0
1937	25	16	0.00	0.0
1936	36	21	0.00	0.0
1935	7	-9	0.00	0.0
1934	28	20	0.00	0.0
1933	50	19	0.00	0.0
1932	35	18	0.00	0.0
1931	38	30	0.00	0.0
1930	25	4	n/a	n/a
1929	12	-4	0.00	0.0
1928	25	3	0.00	0.0
1927	31	-1	0.00	0.0
1926	40	25	0.00	0.0
1925	34	17	0.00	0.0
1924	6	-14	0.00	0.0
1923	44	39	0.28	0.0
1922	33	8	0.00	0.0
1921	29	9	0.00	0.0
1920	26	6	n/a	n/a
1919	26	16	0.00	0.0
1918	46	37	n/a	0.0
1917	39	33	0.00	0.0
1916	5	-10	0.00	0.0
1915	17	-6	0.00	0.0
1914	21	-9	n/a	n/a
1913	39	19	0.00	0.0
1912	34	19	n/a	0.0
1911	32	22	0.00	0.0
1910	34	10	0.00	0.0
1909	12	-3	n/a	n/a
1908	33	12	0.00	0.0
1907	36	25	0.00	0.0
1906	37	26	n/a	n/a
1905	40	17	n/a	n/a
1904	34	10	0.00	0.0
1903	41	19	0.00	0.0
1902	36	34	0.47	0.0
1901	5	-15	0.00	0.0
1900	44	17	0.00	0.0
1899	40	13	0.00	0.0
1898	35	30	0.00	0.0
1897	21	3	n/a	n/a
1896	23	11	0.00	0.0
1895	38	24	0.03	0.0

What's the all-time high for Waterloo on 12/20?

For the date of Dec 20, the highest temperature ever reached in Waterloo history is 53 °F which happened in 1967.

Highest Temperatures in Waterloo on December 20

Rank	Temperature	Year
1	53 °F	1967
2	51 °F	2019
3	50 °F	1933
4	48 °F	2015
4	48 °F	1988
6	46 °F	1918
6	46 °F	2023
8	44 °F	1923
8	44 °F	1900
8	44 °F	1941
8	44 °F	1979

What's the all-time low for Waterloo on 12/20?

For the date of Dec 20, the lowest temperature ever reached in Waterloo history is -20 °F which happened in 1983.

Lowest Temperatures in Waterloo on December 20

Rank	Temperature	Year
1	-20 °F	1983
2	-19 °F	1963
3	-18 °F	1985
4	-15 °F	1901
5	-14 °F	1989
5	-14 °F	1924
7	-11 °F	1955
8	-10 °F	2000
8	-10 °F	1950
8	-10 °F	1916

Lowest High Temperatures in Waterloo on December 20

Rank	Temperature	Year
1	-5 °F	1963
2	2 °F	1989
3	5 °F	1916
3	5 °F	1901
5	6 °F	1985
5	6 °F	1924
7	7 °F	1973
7	7 °F	1935
9	10 °F	1980
10	12 °F	1945
10	12 °F	1970
10	12 °F	1909
10	12 °F	1983
10	12 °F	1955
10	12 °F	1929

What's the most it has ever rained in Waterloo on 12/20?

For the date of Dec 20, the most precipitation ever recorded in Waterloo history is 0.78 inches which happened in 2006.

All-Time Most Precipitation in Waterloo on December 20

Rank	Precipitation	Year
1	0.78 inches	2006
2	0.60 inches	1952
3	0.50 inches	1991
4	0.47 inches	1902
5	0.37 inches	2012
6	0.28 inches	1923
7	0.24 inches	2000
8	0.19 inches	1981
8	0.19 inches	2010
10	0.15 inches	2009

All-Time Most Snow in Waterloo on December 20

Rank	Precipitation	Year
1	4.5 inches	2012
2	3.2 inches	2010
3	2.8 inches	2000
4	2.2 inches	2009
5	1.5 inches	2008
6	1.1 inches	1983
7	1.0 inches	1951
8	0.9 inches	1959
9	0.8 inches	1974
9	0.8 inches	1989
9	0.8 inches	1991
9	0.8 inches	2004

Weather Station Details

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