Waterloo September 12 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of September 12.
September 12 All-Time Records
1895–2024
Highest temperature 97 °F 1927
Lowest temperature 32 °F 1955
Lowest daily high 53 °F 2014
Highest daily low 70 °F 2005
Most precipitation 3.05 inches 1978
Most snow none -
September 12 Average Weather
1991–2020 1
Average high 76.8 °F
Average low 52.6 °F
Chance precipitation 29.3%
Chance snow 0%
Waterloo September 12 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 79 45 0.04 0.0
2022 75 52 0.00 0.0
2021 77 65 0.00 0.0
2020 67 55 0.08 0.0
2019 89 66 0.19 0.0
2018 82 59 0.00 0.0
2017 85 50 0.00 0.0
2016 83 56 0.00 0.0
2015 69 43 0.00 0.0
2014 53 38 0.30 0.0
2013 78 50 0.00 0.0
2012 81 51 0.05 0.0
2011 87 62 0.00 0.0
2010 87 47 0.00 0.0
2009 81 56 0.00 0.0
2008 68 64 0.31 0.0
2007 68 36 0.00 0.0
2006 59 54 0.00 0.0
2005 88 70 0.00 0.0
2004 86 53 0.00 0.0
2003 75 60 0.55 0.0
2002 80 45 0.00 0.0
2001 83 54 0.00 0.0
2000 76 47 0.00 0.0
1999 74 51 0.04 0.0
1998 94 51 0.00 0.0
1997 77 45 0.00 0.0
1996 69 44 0.00 0.0
1995 73 59 0.04 0.0
1994 88 63 0.00 0.0
1993 89 60 0.00 0.0
1992 80 50 0.00 0.0
1991 83 68 0.06 0.0
1990 86 64 0.00 0.0
1989 53 46 0.00 0.0
1988 82 53 0.00 0.0
1987 69 47 0.00 0.0
1986 71 45 0.00 0.0
1985 66 51 0.00 0.0
1984 93 66 0.00 0.0
1983 63 46 0.00 0.0
1982 85 66 0.33 0.0
1981 80 51 0.00 0.0
1980 85 63 0.02 0.0
1979 79 59 0.00 0.0
1978 85 60 3.05 0.0
1977 66 57 0.72 0.0
1976 88 55 0.00 0.0
1975 61 36 0.00 0.0
1974 62 48 0.56 0.0
1973 70 43 0.00 0.0
1972 76 62 2.30 0.0
1971 82 48 0.00 0.0
1970 64 50 0.03 0.0
1969 80 52 0.00 0.0
1968 76 43 0.00 0.0
1967 78 53 0.03 0.0
1966 82 58 0.00 0.0
1965 68 48 0.02 0.0
1964 62 42 0.00 0.0
1963 72 42 0.00 0.0
1962 86 61 0.00 0.0
1961 63 58 2.97 0.0
1960 65 43 0.00 0.0
1959 78 40 0.00 0.0
1958 76 46 0.00 0.0
1957 76 56 0.00 0.0
1956 80 51 0.02 0.0
1955 77 32 0.00 0.0
1954 74 56 0.00 0.0
1953 76 44 0.00 0.0
1952 87 60 0.00 0.0
1951 76 49 0.00 0.0
1950 60 55 0.00 0.0
1949 76 59 0.70 0.0
1948 88 69 0.00 0.0
1947 75 62 0.80 0.0
1946 66 44 0.00 0.0
1945 70 48 0.00 0.0
1944 65 52 n/a 0.0
1943 61 48 n/a 0.0
1942 82 58 n/a 0.0
1941 78 54 0.00 0.0
1940 74 37 0.00 0.0
1939 95 65 n/a 0.0
1938 78 65 1.17 0.0
1937 71 48 0.03 0.0
1936 74 65 0.08 0.0
1935 81 54 0.00 0.0
1934 82 55 0.00 0.0
1933 76 55 n/a 0.0
1932 71 62 n/a 0.0
1931 92 66 0.00 0.0
1930 93 62 n/a 0.0
1929 68 52 n/a 0.0
1928 78 62 0.40 0.0
1927 97 67 0.00 0.0
1926 70 53 n/a 0.0
1925 75 50 0.00 0.0
1924 73 47 0.28 0.0
1923 72 41 0.00 0.0
1922 78 54 0.00 0.0
1921 73 45 0.00 0.0
1920 82 54 0.00 0.0
1919 75 41 0.00 0.0
1918 65 43 0.02 0.0
1917 67 35 n/a 0.0
1916 71 60 0.40 0.0
1915 72 57 0.04 0.0
1914 72 43 n/a 0.0
1913 69 47 0.08 0.0
1912 75 52 n/a 0.0
1911 87 57 n/a 0.0
1910 88 54 n/a 0.0
1909 82 62 0.13 0.0
1908 93 59 0.00 0.0
1907 78 48 0.00 0.0
1906 95 65 n/a 0.0
1905 85 59 n/a 0.0
1904 68 38 n/a 0.0
1903 74 60 0.00 0.0
1902 57 33 0.00 0.0
1901 70 53 0.02 0.0
1900 76 49 0.00 0.0
1899 77 50 0.00 0.0
1898 70 42 0.00 0.0
1897 95 62 0.00 0.0
1896 68 58 0.00 0.0
1895 84 66 n/a 0.0
What's the all-time high for Waterloo on 9/12?
For the date of Sep 12, the highest temperature ever reached in Waterloo history is 97 °F which happened in 1927.
Highest Temperatures in Waterloo on September 12
Rank Temperature Year
1 97 °F 1927
2 95 °F 1906
2 95 °F 1897
2 95 °F 1939
5 94 °F 1998
6 93 °F 1908
6 93 °F 1984
6 93 °F 1930
9 92 °F 1931
10 89 °F 1993
10 89 °F 2019
What's the all-time low for Waterloo on 9/12?
For the date of Sep 12, the lowest temperature ever reached in Waterloo history is 32 °F which happened in 1955.
Lowest Temperatures in Waterloo on September 12
Rank Temperature Year
1 32 °F 1955
2 33 °F 1902
3 35 °F 1917
4 36 °F 2007
4 36 °F 1975
6 37 °F 1940
7 38 °F 1904
7 38 °F 2014
9 40 °F 1959
10 41 °F 1923
10 41 °F 1919
Lowest High Temperatures in Waterloo on September 12
Rank Temperature Year
1 53 °F 1989
1 53 °F 2014
3 57 °F 1902
4 59 °F 2006
5 60 °F 1950
6 61 °F 1975
6 61 °F 1943
8 62 °F 1974
8 62 °F 1964
10 63 °F 1983
10 63 °F 1961
What's the most it has ever rained in Waterloo on 9/12?
For the date of Sep 12, the most precipitation ever recorded in Waterloo history is 3.05 inches which happened in 1978.
All-Time Most Precipitation in Waterloo on September 12
Rank Precipitation Year
1 3.05 inches 1978
2 2.97 inches 1961
3 2.30 inches 1972
4 1.17 inches 1938
5 0.80 inches 1947
6 0.72 inches 1977
7 0.70 inches 1949
8 0.56 inches 1974
9 0.55 inches 2003
10 0.40 inches 1916
10 0.40 inches 1928
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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