Waterloo September 11 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of September 11.
September 11 All-Time Records
1895–2024
Highest temperature 98 °F 2000
Lowest temperature 32 °F 1917
Lowest daily high 58 °F 1940
Highest daily low 71 °F 1978
Most precipitation 2.35 inches 2006
Most snow none -
September 11 Average Weather
1991–2020 1
Average high 77.1 °F
Average low 53.0 °F
Chance precipitation 29.7%
Chance snow 0%
Waterloo September 11 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 79 50 0.02 0.0
2022 73 50 0.00 0.0
2021 88 56 0.00 0.0
2020 61 52 1.28 0.0
2019 83 70 0.74 0.0
2018 81 53 0.00 0.0
2017 80 49 0.00 0.0
2016 77 48 0.00 0.0
2015 67 46 0.00 0.0
2014 62 43 0.00 0.0
2013 85 60 0.06 0.0
2012 90 58 0.00 0.0
2011 85 51 0.00 0.0
2010 76 53 0.00 0.0
2009 80 55 0.00 0.0
2008 78 59 1.03 0.0
2007 68 43 0.00 0.0
2006 60 54 2.35 0.0
2005 90 68 0.00 0.0
2004 86 62 0.00 0.0
2003 89 68 0.00 0.0
2002 77 46 0.00 0.0
2001 82 51 0.00 0.0
2000 98 61 0.00 0.0
1999 84 40 0.00 0.0
1998 90 53 0.00 0.0
1997 72 43 0.00 0.0
1996 74 50 0.00 0.0
1995 77 45 0.00 0.0
1994 86 57 0.00 0.0
1993 76 43 0.00 0.0
1992 71 35 0.00 0.0
1991 77 58 0.17 0.0
1990 84 62 0.00 0.0
1989 67 46 0.00 0.0
1988 89 57 0.00 0.0
1987 73 54 0.00 0.0
1986 71 53 0.30 0.0
1985 70 52 0.00 0.0
1984 77 47 0.00 0.0
1983 75 43 0.00 0.0
1982 87 67 0.00 0.0
1981 88 60 0.00 0.0
1980 78 50 0.03 0.0
1979 88 64 0.00 0.0
1978 91 71 0.00 0.0
1977 75 45 0.00 0.0
1976 86 51 0.00 0.0
1975 68 40 0.01 0.0
1974 80 62 0.00 0.0
1973 71 48 0.00 0.0
1972 69 59 0.11 0.0
1971 78 50 0.00 0.0
1970 74 44 0.00 0.0
1969 74 47 0.00 0.0
1968 72 39 0.00 0.0
1967 73 43 0.00 0.0
1966 82 56 0.00 0.0
1965 73 44 0.00 0.0
1964 60 44 0.00 0.0
1963 79 65 1.11 0.0
1962 79 43 0.00 0.0
1961 77 59 0.00 0.0
1960 77 47 0.00 0.0
1959 75 38 0.00 0.0
1958 68 48 0.00 0.0
1957 66 58 0.44 0.0
1956 74 53 0.03 0.0
1955 70 34 0.00 0.0
1954 74 55 0.00 0.0
1953 85 49 0.00 0.0
1952 88 59 0.00 0.0
1951 87 54 0.00 0.0
1950 68 55 0.00 0.0
1949 67 55 0.80 0.0
1948 90 52 0.00 0.0
1947 83 66 0.34 0.0
1946 70 50 0.00 0.0
1945 63 47 0.00 0.0
1944 65 55 0.06 0.0
1943 67 44 n/a 0.0
1942 88 63 n/a 0.0
1941 77 53 0.00 0.0
1940 58 41 0.00 0.0
1939 67 53 n/a 0.0
1938 85 68 0.31 0.0
1937 81 49 0.03 0.0
1936 78 64 n/a 0.0
1935 81 49 0.00 0.0
1934 83 58 n/a 0.0
1933 72 62 0.00 0.0
1932 82 58 n/a 0.0
1931 95 66 0.00 0.0
1930 90 51 0.00 0.0
1929 78 43 0.00 0.0
1928 78 63 0.80 0.0
1927 92 70 0.00 0.0
1926 74 53 n/a 0.0
1925 70 60 0.00 0.0
1924 59 48 n/a 0.0
1923 74 59 0.00 0.0
1922 75 38 0.00 0.0
1921 72 51 1.35 0.0
1920 89 63 0.00 0.0
1919 78 55 0.00 0.0
1918 69 55 1.40 0.0
1917 59 32 0.00 0.0
1916 81 60 n/a 0.0
1915 82 55 n/a 0.0
1914 59 53 0.12 0.0
1913 84 59 n/a 0.0
1912 76 59 n/a 0.0
1911 80 60 0.00 0.0
1910 73 42 n/a 0.0
1909 87 57 n/a 0.0
1908 92 58 0.00 0.0
1907 75 46 0.00 0.0
1906 93 65 n/a 0.0
1905 84 56 n/a 0.0
1904 89 50 n/a 0.0
1903 75 49 0.00 0.0
1902 62 48 0.00 0.0
1901 70 52 n/a 0.0
1900 79 63 n/a 0.0
1899 85 46 0.00 0.0
1898 63 39 0.00 0.0
1897 75 67 0.00 0.0
1896 69 45 0.00 0.0
1895 94 70 0.00 0.0
What's the all-time high for Waterloo on 9/11?
For the date of Sep 11, the highest temperature ever reached in Waterloo history is 98 °F which happened in 2000.
Highest Temperatures in Waterloo on September 11
Rank Temperature Year
1 98 °F 2000
2 95 °F 1931
3 94 °F 1895
4 93 °F 1906
5 92 °F 1908
5 92 °F 1927
7 91 °F 1978
8 90 °F 2005
8 90 °F 1948
8 90 °F 1998
8 90 °F 2012
8 90 °F 1930
What's the all-time low for Waterloo on 9/11?
For the date of Sep 11, the lowest temperature ever reached in Waterloo history is 32 °F which happened in 1917.
Lowest Temperatures in Waterloo on September 11
Rank Temperature Year
1 32 °F 1917
2 34 °F 1955
3 35 °F 1992
4 38 °F 1922
4 38 °F 1959
6 39 °F 1898
6 39 °F 1968
8 40 °F 1975
8 40 °F 1999
10 41 °F 1940
Lowest High Temperatures in Waterloo on September 11
Rank Temperature Year
1 58 °F 1940
2 59 °F 1917
2 59 °F 1924
2 59 °F 1914
5 60 °F 2006
5 60 °F 1964
7 61 °F 2020
8 62 °F 2014
8 62 °F 1902
10 63 °F 1945
10 63 °F 1898
What's the most it has ever rained in Waterloo on 9/11?
For the date of Sep 11, the most precipitation ever recorded in Waterloo history is 2.35 inches which happened in 2006.
All-Time Most Precipitation in Waterloo on September 11
Rank Precipitation Year
1 2.35 inches 2006
2 1.40 inches 1918
3 1.35 inches 1921
4 1.28 inches 2020
5 1.11 inches 1963
6 1.03 inches 2008
7 0.80 inches 1928
7 0.80 inches 1949
9 0.74 inches 2019
10 0.44 inches 1957
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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