Waterloo August 31 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of August 31.
August 31 All-Time Records
1895–2024
Highest temperature 99 °F 2000
Lowest temperature 36 °F 1915
Lowest daily high 63 °F 1968
Highest daily low 76 °F 1941
Most precipitation 1.96 inches 2010
Most snow none -
August 31 Average Weather
1991–2020 1
Average high 80.0 °F
Average low 56.8 °F
Chance precipitation 29.1%
Chance snow 0%
Waterloo August 31 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 83 47 0.00 0.0
2022 86 56 0.00 0.0
2021 77 62 0.03 0.0
2020 79 52 0.05 0.0
2019 68 53 0.01 0.0
2018 82 66 0.00 0.0
2017 74 50 0.01 0.0
2016 78 55 0.00 0.0
2015 85 57 0.00 0.0
2014 87 57 0.49 0.0
2013 83 66 0.00 0.0
2012 92 60 0.00 0.0
2011 85 64 0.00 0.0
2010 84 66 1.96 0.0
2009 70 41 0.00 0.0
2008 85 57 0.00 0.0
2007 80 52 0.00 0.0
2006 77 52 0.00 0.0
2005 82 51 0.00 0.0
2004 81 50 0.00 0.0
2003 75 56 0.00 0.0
2002 83 60 0.00 0.0
2001 75 50 0.00 0.0
2000 99 73 0.00 0.0
1999 80 56 0.00 0.0
1998 76 52 0.01 0.0
1997 83 63 0.00 0.0
1996 82 53 0.00 0.0
1995 78 63 0.00 0.0
1994 68 47 0.00 0.0
1993 74 53 0.00 0.0
1992 73 43 0.00 0.0
1991 82 60 0.00 0.0
1990 83 65 0.00 0.0
1989 80 68 0.70 0.0
1988 84 54 0.00 0.0
1987 70 49 0.00 0.0
1986 82 53 0.00 0.0
1985 83 57 0.00 0.0
1984 86 44 0.01 0.0
1983 82 63 0.00 0.0
1982 82 60 0.88 0.0
1981 84 65 0.01 0.0
1980 78 64 0.00 0.0
1979 90 72 0.00 0.0
1978 83 56 0.00 0.0
1977 82 65 0.32 0.0
1976 88 59 0.00 0.0
1975 77 59 0.00 0.0
1974 71 44 0.00 0.0
1973 89 70 0.10 0.0
1972 81 60 0.38 0.0
1971 82 60 0.00 0.0
1970 77 54 0.00 0.0
1969 72 57 0.12 0.0
1968 63 57 0.18 0.0
1967 70 38 0.00 0.0
1966 88 63 0.00 0.0
1965 69 51 0.00 0.0
1964 80 51 0.00 0.0
1963 76 52 0.00 0.0
1962 74 55 0.28 0.0
1961 91 70 0.00 0.0
1960 91 73 0.00 0.0
1959 78 63 0.00 0.0
1958 66 46 0.00 0.0
1957 90 68 0.00 0.0
1956 70 58 0.00 0.0
1955 75 50 0.00 0.0
1954 76 52 0.00 0.0
1953 96 67 0.00 0.0
1952 82 67 0.30 0.0
1951 78 64 0.00 0.0
1950 70 48 0.00 0.0
1949 75 46 0.00 0.0
1948 83 58 0.00 0.0
1947 85 68 0.00 0.0
1946 81 46 0.00 0.0
1945 90 75 0.00 0.0
1944 72 50 n/a 0.0
1943 90 69 n/a 0.0
1942 90 65 0.00 0.0
1941 90 76 0.00 0.0
1940 72 54 0.00 0.0
1939 86 62 0.00 0.0
1938 85 67 0.00 0.0
1937 95 68 0.00 0.0
1936 91 55 n/a 0.0
1935 75 44 0.00 0.0
1934 81 59 1.65 0.0
1933 87 51 0.00 0.0
1932 82 65 n/a 0.0
1931 90 59 n/a 0.0
1930 94 66 0.00 0.0
1929 86 65 0.00 0.0
1928 75 44 n/a 0.0
1927 87 52 0.00 0.0
1926 80 62 n/a 0.0
1925 90 47 0.00 0.0
1924 87 57 n/a 0.0
1923 73 63 n/a 0.0
1922 88 68 0.00 0.0
1921 90 66 n/a 0.0
1920 81 51 0.00 0.0
1919 79 n/a n/a n/a
1918 80 45 0.00 0.0
1917 85 50 n/a 0.0
1916 91 58 n/a 0.0
1915 69 36 0.00 0.0
1914 90 65 n/a 0.0
1913 88 52 n/a 0.0
1912 92 65 n/a 0.0
1911 69 50 0.00 0.0
1910 75 50 0.04 0.0
1909 79 51 n/a 0.0
1908 91 69 n/a 0.0
1907 89 68 0.00 0.0
1906 82 54 n/a 0.0
1905 75 58 0.00 0.0
1904 78 50 n/a 0.0
1903 69 48 0.00 0.0
1902 78 67 0.14 0.0
1901 77 49 0.00 0.0
1900 92 61 0.00 0.0
1899 91 65 0.00 0.0
1898 93 66 0.00 0.0
1897 88 52 n/a 0.0
1896 84 46 0.00 0.0
1895 72 50 n/a 0.0
What's the all-time high for Waterloo on 8/31?
For the date of Aug 31, the highest temperature ever reached in Waterloo history is 99 °F which happened in 2000.
Highest Temperatures in Waterloo on August 31
Rank Temperature Year
1 99 °F 2000
2 96 °F 1953
3 95 °F 1937
4 94 °F 1930
5 93 °F 1898
6 92 °F 2012
6 92 °F 1900
6 92 °F 1912
9 91 °F 1899
9 91 °F 1916
9 91 °F 1961
9 91 °F 1908
9 91 °F 1960
9 91 °F 1936
What's the all-time low for Waterloo on 8/31?
For the date of Aug 31, the lowest temperature ever reached in Waterloo history is 36 °F which happened in 1915.
Lowest Temperatures in Waterloo on August 31
Rank Temperature Year
1 36 °F 1915
2 38 °F 1967
3 41 °F 2009
4 43 °F 1992
5 44 °F 1928
5 44 °F 1984
5 44 °F 1974
5 44 °F 1935
9 45 °F 1918
10 46 °F 1949
10 46 °F 1896
10 46 °F 1946
10 46 °F 1958
Lowest High Temperatures in Waterloo on August 31
Rank Temperature Year
1 63 °F 1968
2 66 °F 1958
3 68 °F 2019
3 68 °F 1994
5 69 °F 1965
5 69 °F 1911
5 69 °F 1903
5 69 °F 1915
9 70 °F 1987
9 70 °F 1956
9 70 °F 1967
9 70 °F 2009
9 70 °F 1950
What's the most it has ever rained in Waterloo on 8/31?
For the date of Aug 31, the most precipitation ever recorded in Waterloo history is 1.96 inches which happened in 2010.
All-Time Most Precipitation in Waterloo on August 31
Rank Precipitation Year
1 1.96 inches 2010
2 1.65 inches 1934
3 0.88 inches 1982
4 0.70 inches 1989
5 0.49 inches 2014
6 0.38 inches 1972
7 0.32 inches 1977
8 0.30 inches 1952
9 0.28 inches 1962
10 0.18 inches 1968
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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