Waterloo September 27 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of September 27.
September 27 All-Time Records
1895–2024
Highest temperature 89 °F 2021
Lowest temperature 28 °F 1928
Lowest daily high 47 °F 1942
Highest daily low 65 °F 1946
Most precipitation 1.53 inches 1965
Most snow none -
September 27 Average Weather
1991–2020 1
Average high 71.2 °F
Average low 46.5 °F
Chance precipitation 29.3%
Chance snow 0%
Waterloo September 27 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 77 59 0.00 0.0
2022 67 37 0.00 0.0
2021 89 50 0.00 0.0
2020 70 52 0.01 0.0
2019 72 57 0.28 0.0
2018 69 47 0.00 0.0
2017 67 44 0.00 0.0
2016 72 45 0.00 0.0
2015 81 55 0.00 0.0
2014 82 56 0.00 0.0
2013 84 62 0.00 0.0
2012 72 35 0.00 0.0
2011 68 47 0.00 0.0
2010 71 36 0.00 0.0
2009 78 53 0.00 0.0
2008 81 54 0.00 0.0
2007 76 49 0.00 0.0
2006 65 46 0.00 0.0
2005 76 42 0.00 0.0
2004 83 44 0.00 0.0
2003 60 44 0.00 0.0
2002 67 44 0.00 0.0
2001 75 36 0.00 0.0
2000 74 40 0.00 0.0
1999 63 51 0.49 0.0
1998 80 53 0.00 0.0
1997 78 59 0.00 0.0
1996 57 45 0.00 0.0
1995 81 37 0.00 0.0
1994 67 49 0.00 0.0
1993 61 42 0.00 0.0
1992 76 39 0.00 0.0
1991 53 34 0.00 0.0
1990 82 48 0.00 0.0
1989 68 34 0.00 0.0
1988 76 53 0.00 0.0
1987 83 60 0.00 0.0
1986 81 61 0.01 0.0
1985 67 32 0.00 0.0
1984 59 41 0.00 0.0
1983 82 55 0.00 0.0
1982 67 36 0.00 0.0
1981 63 39 0.00 0.0
1980 74 47 0.00 0.0
1979 84 60 0.00 0.0
1978 67 42 0.00 0.0
1977 65 43 0.00 0.0
1976 59 44 0.22 0.0
1975 71 32 0.00 0.0
1974 66 56 0.00 0.0
1973 64 59 0.00 0.0
1972 65 39 0.00 0.0
1971 81 63 0.00 0.0
1970 62 38 0.00 0.0
1969 68 42 0.00 0.0
1968 68 41 0.00 0.0
1967 53 37 0.00 0.0
1966 67 43 0.00 0.0
1965 54 40 1.53 0.0
1964 55 33 0.00 0.0
1963 85 55 0.00 0.0
1962 64 40 0.00 0.0
1961 62 38 0.00 0.0
1960 69 44 0.00 0.0
1959 63 52 0.06 0.0
1958 65 40 0.00 0.0
1957 62 37 0.00 0.0
1956 82 51 0.00 0.0
1955 75 57 0.40 0.0
1954 89 58 0.00 0.0
1953 76 37 0.00 0.0
1952 81 43 0.00 0.0
1951 62 40 0.00 0.0
1950 76 54 0.00 0.0
1949 64 45 0.03 0.0
1948 73 39 0.00 0.0
1947 54 38 n/a 0.0
1946 80 65 0.00 0.0
1945 60 55 n/a 0.0
1944 78 54 n/a 0.0
1943 81 50 0.00 0.0
1942 47 29 0.00 0.0
1941 78 54 n/a 0.0
1940 71 41 0.00 0.0
1939 74 41 0.00 0.0
1938 73 45 0.00 0.0
1937 68 37 n/a 0.0
1936 57 47 0.75 0.0
1935 59 33 0.00 0.0
1934 67 32 0.05 0.0
1933 67 34 0.05 0.0
1932 66 42 0.10 0.0
1931 70 40 0.00 0.0
1930 58 37 0.00 0.0
1929 87 62 n/a 0.0
1928 66 28 0.00 0.0
1927 49 39 0.58 0.0
1926 52 39 0.00 0.0
1925 68 52 0.47 0.0
1924 74 44 n/a 0.0
1923 79 64 n/a 0.0
1922 77 37 0.00 0.0
1921 77 48 0.00 0.0
1920 77 41 0.00 0.0
1919 70 56 0.00 0.0
1918 78 31 0.00 0.0
1917 56 40 0.20 0.0
1916 81 56 1.20 0.0
1915 59 45 0.51 0.0
1914 72 43 0.00 0.0
1913 64 35 0.00 0.0
1912 56 32 n/a 0.0
1911 68 39 0.00 0.0
1910 58 41 0.08 0.0
1909 66 38 0.00 0.0
1908 81 43 1.35 0.0
1907 66 48 1.13 0.0
1906 75 40 0.00 0.0
1905 83 59 0.02 0.0
1904 82 60 0.00 0.0
1903 64 37 n/a 0.0
1902 69 57 0.70 0.0
1901 86 63 n/a 0.0
1900 57 40 n/a 0.0
1899 76 36 0.00 0.0
1898 79 40 0.00 0.0
1897 78 46 0.00 0.0
1896 59 37 0.00 0.0
1895 63 39 0.00 0.0
What's the all-time high for Waterloo on 9/27?
For the date of Sep 27, the highest temperature ever reached in Waterloo history is 89 °F which has happened 2 times, most recently in 2021.
Highest Temperatures in Waterloo on September 27
Rank Temperature Year
1 89 °F 2021
1 89 °F 1954
3 87 °F 1929
4 86 °F 1901
5 85 °F 1963
6 84 °F 1979
6 84 °F 2013
8 83 °F 2004
8 83 °F 1905
8 83 °F 1987
What's the all-time low for Waterloo on 9/27?
For the date of Sep 27, the lowest temperature ever reached in Waterloo history is 28 °F which happened in 1928.
Lowest Temperatures in Waterloo on September 27
Rank Temperature Year
1 28 °F 1928
2 29 °F 1942
3 31 °F 1918
4 32 °F 1985
4 32 °F 1912
4 32 °F 1975
4 32 °F 1934
8 33 °F 1964
8 33 °F 1935
10 34 °F 1991
10 34 °F 1989
10 34 °F 1933
Lowest High Temperatures in Waterloo on September 27
Rank Temperature Year
1 47 °F 1942
2 49 °F 1927
3 52 °F 1926
4 53 °F 1967
4 53 °F 1991
6 54 °F 1965
6 54 °F 1947
8 55 °F 1964
9 56 °F 1917
9 56 °F 1912
What's the most it has ever rained in Waterloo on 9/27?
For the date of Sep 27, the most precipitation ever recorded in Waterloo history is 1.53 inches which happened in 1965.
All-Time Most Precipitation in Waterloo on September 27
Rank Precipitation Year
1 1.53 inches 1965
2 1.35 inches 1908
3 1.20 inches 1916
4 1.13 inches 1907
5 0.75 inches 1936
6 0.70 inches 1902
7 0.58 inches 1927
8 0.51 inches 1915
9 0.49 inches 1999
10 0.47 inches 1925
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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