Waterloo September 1 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of September 1.
September 1 All-Time Records
1895–2024
Highest temperature 97 °F 1984
Lowest temperature 36 °F 1967
Lowest daily high 61 °F 1935
Highest daily low 72 °F 1973
Most precipitation 3.23 inches 2018
Most snow none -
September 1 Average Weather
1991–2020 1
Average high 79.9 °F
Average low 56.5 °F
Chance precipitation 28.6%
Chance snow 0%
Waterloo September 1 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 90 58 0.00 0.0
2022 87 61 0.00 0.0
2021 78 57 0.00 0.0
2020 76 45 0.00 0.0
2019 79 49 0.00 0.0
2018 81 66 3.23 0.0
2017 73 43 0.00 0.0
2016 76 54 0.00 0.0
2015 88 68 0.00 0.0
2014 79 62 0.09 0.0
2013 83 60 0.00 0.0
2012 85 62 0.00 0.0
2011 93 71 0.00 0.0
2010 83 67 0.03 0.0
2009 70 42 0.00 0.0
2008 89 67 0.00 0.0
2007 80 54 0.00 0.0
2006 79 50 0.00 0.0
2005 85 47 0.00 0.0
2004 86 63 0.00 0.0
2003 79 49 0.00 0.0
2002 86 65 0.00 0.0
2001 76 45 0.00 0.0
2000 82 68 0.00 0.0
1999 86 60 0.00 0.0
1998 80 52 0.00 0.0
1997 85 63 0.00 0.0
1996 86 53 0.00 0.0
1995 82 55 0.00 0.0
1994 71 45 0.06 0.0
1993 75 48 0.00 0.0
1992 72 49 0.02 0.0
1991 79 54 0.00 0.0
1990 87 63 0.00 0.0
1989 73 56 0.70 0.0
1988 83 60 0.00 0.0
1987 80 45 0.00 0.0
1986 82 53 0.00 0.0
1985 82 61 0.00 0.0
1984 97 64 0.15 0.0
1983 84 58 0.00 0.0
1982 79 61 0.15 0.0
1981 65 54 0.00 0.0
1980 80 59 0.20 0.0
1979 83 69 0.00 0.0
1978 83 61 0.00 0.0
1977 78 63 0.00 0.0
1976 75 55 0.00 0.0
1975 83 64 0.00 0.0
1974 64 40 0.16 0.0
1973 89 72 0.16 0.0
1972 74 53 0.20 0.0
1971 85 60 0.00 0.0
1970 78 58 0.07 0.0
1969 62 49 0.00 0.0
1968 73 50 0.00 0.0
1967 73 36 0.00 0.0
1966 90 63 0.00 0.0
1965 68 44 0.00 0.0
1964 78 55 0.00 0.0
1963 77 47 0.06 0.0
1962 77 49 0.00 0.0
1961 79 69 0.31 0.0
1960 92 71 0.00 0.0
1959 78 63 0.40 0.0
1958 73 45 0.00 0.0
1957 87 70 0.00 0.0
1956 73 51 0.00 0.0
1955 80 44 0.00 0.0
1954 85 59 0.00 0.0
1953 96 70 0.00 0.0
1952 81 57 0.00 0.0
1951 67 55 0.00 0.0
1950 83 41 0.00 0.0
1949 75 36 0.00 0.0
1948 78 64 0.42 0.0
1947 83 67 0.00 0.0
1946 71 46 0.00 0.0
1945 85 61 0.00 0.0
1944 83 50 0.00 0.0
1943 82 63 0.05 0.0
1942 90 69 n/a 0.0
1941 82 54 0.00 0.0
1940 77 50 0.00 0.0
1939 86 58 0.00 0.0
1938 85 55 0.00 0.0
1937 96 70 0.00 0.0
1936 75 59 n/a 0.0
1935 61 45 n/a 0.0
1934 80 66 0.00 0.0
1933 90 59 n/a 0.0
1932 80 53 n/a 0.0
1931 80 63 n/a 0.0
1930 87 70 0.00 0.0
1929 88 63 0.00 0.0
1928 83 54 n/a 0.0
1927 87 64 0.00 0.0
1926 87 66 n/a 0.0
1925 88 48 0.00 0.0
1924 72 53 n/a 0.0
1923 73 65 1.05 0.0
1922 97 67 0.00 0.0
1921 88 68 0.00 0.0
1920 80 56 n/a 0.0
1919 84 n/a n/a n/a
1918 86 58 n/a 0.0
1917 83 59 n/a 0.0
1916 73 65 n/a 0.0
1915 75 44 0.00 0.0
1914 87 64 n/a 0.0
1913 91 67 0.00 0.0
1912 94 68 n/a 0.0
1911 85 53 0.00 0.0
1910 76 54 0.00 0.0
1909 78 43 n/a 0.0
1908 86 53 0.00 0.0
1907 95 69 0.00 0.0
1906 85 57 n/a 0.0
1905 81 58 0.16 0.0
1904 84 61 n/a 0.0
1903 76 49 0.00 0.0
1902 75 58 0.00 0.0
1901 84 45 0.00 0.0
1900 86 66 0.00 0.0
1899 91 65 0.00 0.0
1898 93 72 0.00 0.0
1897 85 62 n/a 0.0
1896 73 44 n/a 0.0
1895 75 42 0.00 0.0
What's the all-time high for Waterloo on 9/1?
For the date of Sep 1, the highest temperature ever reached in Waterloo history is 97 °F which has happened 2 times, most recently in 1984.
Highest Temperatures in Waterloo on September 1
Rank Temperature Year
1 97 °F 1922
1 97 °F 1984
3 96 °F 1937
3 96 °F 1953
5 95 °F 1907
6 94 °F 1912
7 93 °F 2011
7 93 °F 1898
9 92 °F 1960
10 91 °F 1913
10 91 °F 1899
What's the all-time low for Waterloo on 9/1?
For the date of Sep 1, the lowest temperature ever reached in Waterloo history is 36 °F which has happened 2 times, most recently in 1967.
Lowest Temperatures in Waterloo on September 1
Rank Temperature Year
1 36 °F 1949
1 36 °F 1967
3 40 °F 1974
4 41 °F 1950
5 42 °F 2009
5 42 °F 1895
7 43 °F 2017
7 43 °F 1909
9 44 °F 1915
9 44 °F 1896
9 44 °F 1965
9 44 °F 1955
Lowest High Temperatures in Waterloo on September 1
Rank Temperature Year
1 61 °F 1935
2 62 °F 1969
3 64 °F 1974
4 65 °F 1981
5 67 °F 1951
6 68 °F 1965
7 70 °F 2009
8 71 °F 1946
8 71 °F 1994
10 72 °F 1924
10 72 °F 1992
What's the most it has ever rained in Waterloo on 9/1?
For the date of Sep 1, the most precipitation ever recorded in Waterloo history is 3.23 inches which happened in 2018.
All-Time Most Precipitation in Waterloo on September 1
Rank Precipitation Year
1 3.23 inches 2018
2 1.05 inches 1923
3 0.70 inches 1989
4 0.42 inches 1948
5 0.40 inches 1959
6 0.31 inches 1961
7 0.20 inches 1972
7 0.20 inches 1980
9 0.16 inches 1974
9 0.16 inches 1905
9 0.16 inches 1973
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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