Waterloo September 23 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of September 23.
September 23 All-Time Records
1895–2024
Highest temperature 92 °F 2017
Lowest temperature 28 °F 1983
Lowest daily high 49 °F 1961
Highest daily low 67 °F 1936
Most precipitation 1.92 inches 1902
Most snow none -
September 23 Average Weather
1991–2020 1
Average high 72.7 °F
Average low 48.2 °F
Chance precipitation 29.4%
Chance snow 0%
Waterloo September 23 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 84 65 0.01 0.0
2022 61 49 0.07 0.0
2021 74 41 0.00 0.0
2020 80 48 0.00 0.0
2019 77 50 0.00 0.0
2018 75 45 0.00 0.0
2017 92 65 0.00 0.0
2016 77 64 0.37 0.0
2015 83 59 0.00 0.0
2014 73 43 0.00 0.0
2013 74 48 0.00 0.0
2012 62 29 0.00 0.0
2011 62 38 0.00 0.0
2010 80 59 0.65 0.0
2009 76 60 0.00 0.0
2008 82 64 0.01 0.0
2007 85 50 0.00 0.0
2006 69 49 0.00 0.0
2005 74 50 0.00 0.0
2004 84 60 0.11 0.0
2003 75 36 0.00 0.0
2002 69 36 0.00 0.0
2001 63 45 0.01 0.0
2000 58 50 0.00 0.0
1999 87 52 0.00 0.0
1998 71 35 0.26 0.0
1997 66 46 0.10 0.0
1996 65 53 0.37 0.0
1995 60 32 0.00 0.0
1994 56 43 0.01 0.0
1993 66 43 0.00 0.0
1992 68 34 0.00 0.0
1991 63 38 0.00 0.0
1990 58 37 0.00 0.0
1989 55 30 0.00 0.0
1988 70 44 0.00 0.0
1987 78 41 0.00 0.0
1986 70 55 0.00 0.0
1985 60 40 0.74 0.0
1984 82 60 0.00 0.0
1983 59 28 0.00 0.0
1982 74 49 0.00 0.0
1981 66 42 0.00 0.0
1980 65 36 0.00 0.0
1979 73 46 0.02 0.0
1978 73 40 0.00 0.0
1977 67 46 0.92 0.0
1976 60 34 0.00 0.0
1975 66 35 0.00 0.0
1974 69 34 0.01 0.0
1973 66 43 0.00 0.0
1972 66 36 0.00 0.0
1971 62 38 0.00 0.0
1970 60 51 0.74 0.0
1969 63 47 0.00 0.0
1968 74 61 0.80 0.0
1967 70 42 0.00 0.0
1966 72 42 0.00 0.0
1965 51 42 0.00 0.0
1964 64 48 0.00 0.0
1963 61 49 0.01 0.0
1962 71 45 0.00 0.0
1961 49 42 0.17 0.0
1960 64 58 0.19 0.0
1959 68 52 0.00 0.0
1958 74 62 0.40 0.0
1957 61 40 0.00 0.0
1956 73 40 0.00 0.0
1955 71 55 0.68 0.0
1954 72 39 0.00 0.0
1953 76 45 0.00 0.0
1952 67 33 0.00 0.0
1951 65 45 0.00 0.0
1950 65 49 0.00 0.0
1949 62 36 0.00 0.0
1948 68 42 0.00 0.0
1947 74 42 0.00 0.0
1946 56 41 n/a 0.0
1945 82 66 n/a 0.0
1944 56 52 n/a 0.0
1943 64 36 0.00 0.0
1942 56 43 0.33 0.0
1941 80 49 0.00 0.0
1940 75 65 0.06 0.0
1939 75 52 0.00 0.0
1938 90 50 0.00 0.0
1937 91 64 n/a 0.0
1936 81 67 0.00 0.0
1935 81 58 n/a 0.0
1934 65 49 0.00 0.0
1933 88 49 0.00 0.0
1932 69 37 0.00 0.0
1931 70 59 0.22 0.0
1930 88 66 n/a 0.0
1929 81 54 0.00 0.0
1928 58 35 0.00 0.0
1927 71 44 0.00 0.0
1926 72 54 n/a 0.0
1925 73 44 0.00 0.0
1924 78 37 0.00 0.0
1923 76 52 0.00 0.0
1922 85 54 0.00 0.0
1921 80 50 n/a 0.0
1920 85 65 n/a 0.0
1919 76 40 0.00 0.0
1918 79 43 0.00 0.0
1917 75 43 0.00 0.0
1916 62 39 0.00 0.0
1915 66 39 0.00 0.0
1914 62 40 n/a 0.0
1913 52 30 n/a 0.0
1912 67 42 0.00 0.0
1911 80 50 0.00 0.0
1910 76 55 n/a 0.0
1909 68 39 0.00 0.0
1908 89 63 0.00 0.0
1907 67 45 0.00 0.0
1906 66 50 0.00 0.0
1905 81 42 0.00 0.0
1904 69 53 0.00 0.0
1903 84 51 0.00 0.0
1902 68 62 1.92 0.0
1901 83 52 0.00 0.0
1900 74 52 n/a 0.0
1899 62 48 n/a 0.0
1898 81 49 0.00 0.0
1897 80 43 0.00 0.0
1896 67 34 0.00 0.0
1895 63 40 0.00 0.0
What's the all-time high for Waterloo on 9/23?
For the date of Sep 23, the highest temperature ever reached in Waterloo history is 92 °F which happened in 2017.
Highest Temperatures in Waterloo on September 23
Rank Temperature Year
1 92 °F 2017
2 91 °F 1937
3 90 °F 1938
4 89 °F 1908
5 88 °F 1930
5 88 °F 1933
7 87 °F 1999
8 85 °F 1920
8 85 °F 1922
8 85 °F 2007
What's the all-time low for Waterloo on 9/23?
For the date of Sep 23, the lowest temperature ever reached in Waterloo history is 28 °F which happened in 1983.
Lowest Temperatures in Waterloo on September 23
Rank Temperature Year
1 28 °F 1983
2 29 °F 2012
3 30 °F 1989
3 30 °F 1913
5 32 °F 1995
6 33 °F 1952
7 34 °F 1974
7 34 °F 1896
7 34 °F 1992
7 34 °F 1976
Lowest High Temperatures in Waterloo on September 23
Rank Temperature Year
1 49 °F 1961
2 51 °F 1965
3 52 °F 1913
4 55 °F 1989
5 56 °F 1944
5 56 °F 1994
5 56 °F 1942
5 56 °F 1946
9 58 °F 1990
9 58 °F 2000
9 58 °F 1928
What's the most it has ever rained in Waterloo on 9/23?
For the date of Sep 23, the most precipitation ever recorded in Waterloo history is 1.92 inches which happened in 1902.
All-Time Most Precipitation in Waterloo on September 23
Rank Precipitation Year
1 1.92 inches 1902
2 0.92 inches 1977
3 0.80 inches 1968
4 0.74 inches 1970
4 0.74 inches 1985
6 0.68 inches 1955
7 0.65 inches 2010
8 0.40 inches 1958
9 0.37 inches 2016
9 0.37 inches 1996
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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