Waterloo August 12 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of August 12.
August 12 All-Time Records
1895–2024
Highest temperature 102 °F 1936
Lowest temperature 45 °F 1967
Lowest daily high 62 °F 1964
Highest daily low 75 °F 1995
Most precipitation 1.47 inches 1923
Most snow none -
August 12 Average Weather
1991–2020 1
Average high 82.0 °F
Average low 60.0 °F
Chance precipitation 27.6%
Chance snow 0%
Waterloo August 12 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 86 64 0.00 0.0
2022 76 63 0.00 0.0
2021 92 62 0.00 0.0
2020 85 57 0.00 0.0
2019 77 68 0.32 0.0
2018 85 59 0.00 0.0
2017 79 52 0.00 0.0
2016 77 67 0.11 0.0
2015 82 54 0.00 0.0
2014 80 54 0.00 0.0
2013 80 59 0.00 0.0
2012 64 59 0.57 0.0
2011 83 62 0.00 0.0
2010 91 70 0.00 0.0
2009 84 59 0.00 0.0
2008 75 60 0.00 0.0
2007 87 68 0.00 0.0
2006 82 60 0.00 0.0
2005 76 63 0.00 0.0
2004 69 52 0.01 0.0
2003 81 57 0.00 0.0
2002 79 65 1.41 0.0
2001 86 57 0.00 0.0
2000 88 66 0.00 0.0
1999 84 66 0.13 0.0
1998 78 58 0.00 0.0
1997 68 61 0.51 0.0
1996 84 54 0.00 0.0
1995 94 75 0.00 0.0
1994 76 63 1.16 0.0
1993 87 71 0.00 0.0
1992 72 51 0.22 0.0
1991 84 57 0.03 0.0
1990 77 60 0.00 0.0
1989 88 55 0.00 0.0
1988 93 71 0.00 0.0
1987 83 66 0.10 0.0
1986 75 56 0.00 0.0
1985 90 64 1.14 0.0
1984 84 59 0.00 0.0
1983 81 54 0.00 0.0
1982 75 49 0.00 0.0
1981 86 60 0.00 0.0
1980 80 56 0.00 0.0
1979 75 57 0.00 0.0
1978 88 59 0.00 0.0
1977 81 50 0.00 0.0
1976 87 61 0.00 0.0
1975 92 69 0.14 0.0
1974 86 64 0.02 0.0
1973 84 57 0.00 0.0
1972 85 65 0.00 0.0
1971 84 56 0.00 0.0
1970 83 59 0.00 0.0
1969 86 63 0.00 0.0
1968 75 57 0.00 0.0
1967 74 45 0.00 0.0
1966 80 49 0.00 0.0
1965 93 64 0.00 0.0
1964 62 45 0.00 0.0
1963 85 65 0.22 0.0
1962 73 63 0.00 0.0
1961 79 53 0.00 0.0
1960 84 55 0.00 0.0
1959 88 70 0.00 0.0
1958 92 60 0.00 0.0
1957 86 66 0.00 0.0
1956 84 61 0.16 0.0
1955 84 53 0.00 0.0
1954 79 48 0.00 0.0
1953 84 54 0.32 0.0
1952 78 48 0.00 0.0
1951 76 50 0.00 0.0
1950 77 59 0.00 0.0
1949 78 71 0.00 0.0
1948 87 61 0.00 0.0
1947 94 72 0.00 0.0
1946 75 47 0.00 0.0
1945 83 60 0.13 0.0
1944 87 56 0.00 0.0
1943 91 69 n/a 0.0
1942 80 52 0.00 0.0
1941 85 72 0.00 0.0
1940 86 69 n/a 0.0
1939 85 61 0.00 0.0
1938 87 53 0.00 0.0
1937 85 55 0.11 0.0
1936 102 65 0.00 0.0
1935 85 63 0.00 0.0
1934 86 62 0.75 0.0
1933 85 62 n/a 0.0
1932 71 63 n/a 0.0
1931 84 46 0.00 0.0
1930 78 58 0.00 0.0
1929 91 62 0.00 0.0
1928 83 53 0.00 0.0
1927 89 59 0.00 0.0
1926 85 65 1.11 0.0
1925 76 61 n/a 0.0
1924 79 54 n/a 0.0
1923 85 66 1.47 0.0
1922 84 61 n/a 0.0
1921 90 57 0.00 0.0
1920 79 63 n/a 0.0
1919 79 59 0.00 0.0
1918 101 72 0.00 0.0
1917 85 58 n/a 0.0
1916 79 55 0.00 0.0
1915 86 57 0.00 0.0
1914 80 56 0.00 0.0
1913 74 62 n/a 0.0
1912 76 62 0.50 0.0
1911 68 60 0.16 0.0
1910 88 59 n/a 0.0
1909 94 69 n/a 0.0
1908 74 59 0.00 0.0
1907 82 55 0.00 0.0
1906 87 58 0.00 0.0
1905 99 66 0.00 0.0
1904 79 55 n/a 0.0
1903 75 49 0.00 0.0
1902 67 48 n/a 0.0
1901 87 53 0.00 0.0
1900 90 65 0.29 0.0
1899 85 57 0.00 0.0
1898 80 49 n/a 0.0
1897 83 50 n/a 0.0
1896 83 57 0.00 0.0
1895 88 54 0.00 0.0
What's the all-time high for Waterloo on 8/12?
For the date of Aug 12, the highest temperature ever reached in Waterloo history is 102 °F which happened in 1936.
Highest Temperatures in Waterloo on August 12
Rank Temperature Year
1 102 °F 1936
2 101 °F 1918
3 99 °F 1905
4 94 °F 1909
4 94 °F 1947
4 94 °F 1995
7 93 °F 1965
7 93 °F 1988
9 92 °F 1958
9 92 °F 1975
9 92 °F 2021
What's the all-time low for Waterloo on 8/12?
For the date of Aug 12, the lowest temperature ever reached in Waterloo history is 45 °F which has happened 2 times, most recently in 1967.
Lowest Temperatures in Waterloo on August 12
Rank Temperature Year
1 45 °F 1967
1 45 °F 1964
3 46 °F 1931
4 47 °F 1946
5 48 °F 1952
5 48 °F 1954
5 48 °F 1902
8 49 °F 1898
8 49 °F 1966
8 49 °F 1903
8 49 °F 1982
Lowest High Temperatures in Waterloo on August 12
Rank Temperature Year
1 62 °F 1964
2 64 °F 2012
3 67 °F 1902
4 68 °F 1997
4 68 °F 1911
6 69 °F 2004
7 71 °F 1932
8 72 °F 1992
9 73 °F 1962
10 74 °F 1913
10 74 °F 1908
10 74 °F 1967
What's the most it has ever rained in Waterloo on 8/12?
For the date of Aug 12, the most precipitation ever recorded in Waterloo history is 1.47 inches which happened in 1923.
All-Time Most Precipitation in Waterloo on August 12
Rank Precipitation Year
1 1.47 inches 1923
2 1.41 inches 2002
3 1.16 inches 1994
4 1.14 inches 1985
5 1.11 inches 1926
6 0.75 inches 1934
7 0.57 inches 2012
8 0.51 inches 1997
9 0.50 inches 1912
10 0.32 inches 2019
10 0.32 inches 1953
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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