Waterloo December 18 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of December 18.
December 18 All-Time Records
1895–2024
Highest temperature 57 °F 2002
Lowest temperature -23 °F 1983
Lowest daily high -8 °F 1983
Highest daily low 39 °F 2002
Most precipitation 0.93 inches 1968
Most snow 4.7 inches 2000
December 18 Average Weather
1991–2020 1
Average high 31.7 °F
Average low 15.1 °F
Chance precipitation 28.2%
Chance snow 19.5%
Waterloo December 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 35 11 0.00 0.0
2022 13 -1 0.00 0.0
2021 32 18 0.00 0.0
2020 38 27 0.00 0.0
2019 24 4 0.00 0.0
2018 51 26 0.00 0.0
2017 45 24 0.00 0.0
2016 -3 -17 0.00 0.0
2015 32 15 0.00 0.0
2014 25 10 0.00 0.0
2013 42 9 0.00 0.0
2012 33 25 0.01 0.0
2011 52 20 0.00 0.0
2010 16 -4 0.00 0.0
2009 29 11 0.00 0.0
2008 20 -3 0.30 3.1
2007 32 13 0.00 0.0
2006 34 13 0.00 0.0
2005 7 -5 0.00 0.0
2004 38 8 0.00 0.0
2003 31 21 0.01 0.7
2002 57 39 0.08 0.0
2001 49 23 0.00 0.0
2000 9 4 0.30 4.7
1999 27 0 0.00 0.0
1998 42 28 0.00 0.0
1997 45 24 0.00 0.0
1996 7 0 0.00 0.0
1995 38 30 0.00 0.0
1994 25 4 0.00 0.0
1993 36 32 0.00 0.0
1992 34 26 0.02 0.0
1991 17 5 0.00 0.0
1990 24 10 0.02 0.4
1989 9 -9 0.03 0.6
1988 43 16 0.00 0.0
1987 34 19 0.00 0.0
1986 31 19 0.00 0.0
1985 -1 -19 0.00 0.0
1984 23 7 0.00 0.0
1983 -8 -23 0.00 0.0
1982 46 33 0.00 0.0
1981 6 -8 0.00 0.0
1980 34 8 0.00 0.0
1979 41 15 0.00 0.0
1978 40 24 0.00 0.0
1977 35 31 0.00 0.0
1976 50 26 0.00 0.0
1975 20 -6 0.00 0.0
1974 28 17 0.03 0.3
1973 23 20 0.00 0.0
1972 37 19 0.00 0.0
1971 37 6 0.00 0.0
1970 33 20 0.01 0.0
1969 32 15 0.00 0.0
1968 33 27 0.93 0.0
1967 40 22 0.00 0.0
1966 39 24 0.00 0.0
1965 37 17 0.00 0.0
1964 16 -10 0.00 0.0
1963 -2 -14 0.00 0.0
1962 56 24 0.00 0.0
1961 29 25 0.00 0.0
1960 29 11 0.00 0.0
1959 41 23 0.00 0.0
1958 41 13 0.00 0.0
1957 35 32 0.40 0.4
1956 26 -14 0.00 0.0
1955 6 -17 0.05 0.8
1954 29 24 0.28 0.5
1953 30 0 0.00 0.0
1952 35 15 0.00 n/a
1951 15 -1 0.29 3.5
1950 10 -20 0.00 0.0
1949 43 23 0.00 0.0
1948 29 22 0.01 0.0
1947 34 24 0.00 0.0
1946 25 2 0.00 0.0
1945 4 -14 0.00 0.0
1944 18 -10 0.00 0.0
1943 44 17 0.00 0.0
1942 26 9 0.00 0.0
1941 52 25 0.00 0.0
1940 33 21 0.00 0.0
1939 51 32 0.00 0.0
1938 31 20 0.00 0.0
1937 30 22 n/a n/a
1936 30 19 0.00 0.0
1935 29 16 0.00 0.0
1934 34 29 0.00 0.0
1933 38 10 0.00 0.0
1932 21 -7 0.00 0.0
1931 50 26 0.00 0.0
1930 32 19 n/a n/a
1929 30 0 0.02 0.2
1928 41 19 0.00 0.0
1927 8 -4 0.00 0.0
1926 20 11 0.00 0.0
1925 20 -12 0.00 0.0
1924 9 2 n/a n/a
1923 57 30 0.00 0.0
1922 10 -18 0.00 0.0
1921 29 9 0.00 0.0
1920 23 6 0.00 0.0
1919 18 -2 0.00 0.0
1918 43 30 0.00 0.0
1917 35 18 0.00 0.0
1916 21 -8 0.00 0.0
1915 16 3 0.02 0.2
1914 27 -8 n/a n/a
1913 45 20 0.00 0.0
1912 35 26 0.00 0.0
1911 27 20 0.00 0.0
1910 39 22 n/a n/a
1909 10 -9 0.00 0.0
1908 35 26 0.00 0.0
1907 30 18 0.00 0.0
1906 25 -1 0.00 0.0
1905 49 27 0.00 0.0
1904 31 13 0.00 0.0
1903 25 15 0.00 0.0
1902 34 11 n/a 0.0
1901 1 -15 0.00 0.0
1900 49 29 0.00 0.0
1899 32 16 n/a 0.0
1898 42 14 n/a 0.0
1897 4 -14 0.00 0.0
1896 30 16 0.00 0.0
1895 45 28 0.00 0.0
What's the all-time high for Waterloo on 12/18?
For the date of Dec 18, the highest temperature ever reached in Waterloo history is 57 °F which has happened 2 times, most recently in 2002.
Highest Temperatures in Waterloo on December 18
Rank Temperature Year
1 57 °F 2002
1 57 °F 1923
3 56 °F 1962
4 52 °F 1941
4 52 °F 2011
6 51 °F 2018
6 51 °F 1939
8 50 °F 1931
8 50 °F 1976
10 49 °F 1905
10 49 °F 2001
10 49 °F 1900
What's the all-time low for Waterloo on 12/18?
For the date of Dec 18, the lowest temperature ever reached in Waterloo history is -23 °F which happened in 1983.
Lowest Temperatures in Waterloo on December 18
Rank Temperature Year
1 -23 °F 1983
2 -20 °F 1950
3 -19 °F 1985
4 -18 °F 1922
5 -17 °F 2016
5 -17 °F 1955
7 -15 °F 1901
8 -14 °F 1897
8 -14 °F 1945
8 -14 °F 1963
8 -14 °F 1956
Lowest High Temperatures in Waterloo on December 18
Rank Temperature Year
1 -8 °F 1983
2 -3 °F 2016
3 -2 °F 1963
4 -1 °F 1985
5 1 °F 1901
6 4 °F 1897
6 4 °F 1945
8 6 °F 1981
8 6 °F 1955
10 7 °F 2005
10 7 °F 1996
What's the most it has ever rained in Waterloo on 12/18?
For the date of Dec 18, the most precipitation ever recorded in Waterloo history is 0.93 inches which happened in 1968.
All-Time Most Precipitation in Waterloo on December 18
Rank Precipitation Year
1 0.93 inches 1968
2 0.40 inches 1957
3 0.30 inches 2008
3 0.30 inches 2000
5 0.29 inches 1951
6 0.28 inches 1954
7 0.08 inches 2002
8 0.05 inches 1955
9 0.03 inches 1989
9 0.03 inches 1974
All-Time Most Snow in Waterloo on December 18
Rank Precipitation Year
1 4.7 inches 2000
2 3.5 inches 1951
3 3.1 inches 2008
4 0.8 inches 1955
5 0.7 inches 2003
6 0.6 inches 1989
7 0.5 inches 1954
8 0.4 inches 1957
8 0.4 inches 1990
10 0.3 inches 1974
Weather Station Details
Years Station Coordinates
1950–2024 Waterloo Municipal Airport location
1895–1950 Waterloo location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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