Waterloo September 15 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of September 15.
September 15 All-Time Records
1895–2024
Highest temperature 100 °F 1927
Lowest temperature 30 °F 2007
Lowest daily high 55 °F 1993
Highest daily low 70 °F 1994
Most precipitation 1.51 inches 2016
Most snow none -
September 15 Average Weather
1991–2020 1
Average high 75.8 °F
Average low 51.3 °F
Chance precipitation 29.1%
Chance snow 0%
Waterloo September 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 78 57 0.00 0.0
2022 86 60 0.00 0.0
2021 79 49 0.00 0.0
2020 83 56 0.00 0.0
2019 88 62 0.00 0.0
2018 89 63 0.00 0.0
2017 91 62 0.00 0.0
2016 81 55 1.51 0.0
2015 86 63 0.00 0.0
2014 62 38 0.02 0.0
2013 66 51 0.38 0.0
2012 78 45 0.00 0.0
2011 59 31 0.00 0.0
2010 83 56 0.00 0.0
2009 82 50 0.00 0.0
2008 66 49 0.00 0.0
2007 62 30 0.00 0.0
2006 80 54 0.00 0.0
2005 70 45 0.00 0.0
2004 80 57 0.04 0.0
2003 78 45 0.00 0.0
2002 74 44 0.00 0.0
2001 63 51 0.01 0.0
2000 69 42 0.00 0.0
1999 69 38 0.00 0.0
1998 83 59 0.00 0.0
1997 80 55 0.00 0.0
1996 71 41 0.00 0.0
1995 83 48 0.00 0.0
1994 91 70 0.27 0.0
1993 55 46 0.00 0.0
1992 82 61 0.00 0.0
1991 83 67 0.08 0.0
1990 81 44 0.00 0.0
1989 70 39 0.00 0.0
1988 74 59 0.00 0.0
1987 70 58 0.02 0.0
1986 68 53 0.00 0.0
1985 73 40 0.00 0.0
1984 65 35 0.00 0.0
1983 58 54 0.60 0.0
1982 61 46 0.00 0.0
1981 68 49 0.00 0.0
1980 71 55 0.01 0.0
1979 74 40 0.00 0.0
1978 84 56 0.00 0.0
1977 65 49 0.06 0.0
1976 67 43 0.00 0.0
1975 62 54 0.00 0.0
1974 74 49 0.00 0.0
1973 56 45 0.08 0.0
1972 78 53 0.00 0.0
1971 70 43 0.00 0.0
1970 60 47 0.79 0.0
1969 77 59 0.00 0.0
1968 79 55 0.00 0.0
1967 74 55 0.03 0.0
1966 65 41 0.00 0.0
1965 58 48 0.00 0.0
1964 64 47 0.00 0.0
1963 77 48 0.00 0.0
1962 75 59 0.13 0.0
1961 69 41 0.00 0.0
1960 78 50 0.00 0.0
1959 58 47 0.00 0.0
1958 79 60 0.00 0.0
1957 71 52 0.00 0.0
1956 77 49 0.00 0.0
1955 95 59 0.00 0.0
1954 64 57 0.00 0.0
1953 78 46 0.00 0.0
1952 76 53 0.00 0.0
1951 63 49 0.00 0.0
1950 77 52 0.00 0.0
1949 70 46 0.00 0.0
1948 89 57 0.00 0.0
1947 65 44 0.00 0.0
1946 78 49 n/a 0.0
1945 68 47 0.00 0.0
1944 74 48 n/a 0.0
1943 70 46 0.00 0.0
1942 77 64 0.12 0.0
1941 80 63 1.23 0.0
1940 72 42 0.00 0.0
1939 97 70 0.00 0.0
1938 68 51 0.52 0.0
1937 70 50 0.00 0.0
1936 82 68 n/a 0.0
1935 90 64 0.00 0.0
1934 66 48 n/a 0.0
1933 64 56 0.00 0.0
1932 74 62 0.00 0.0
1931 80 60 n/a 0.0
1930 81 46 0.00 0.0
1929 81 48 n/a 0.0
1928 85 57 0.00 0.0
1927 100 70 n/a 0.0
1926 82 62 0.19 0.0
1925 79 58 0.00 0.0
1924 68 48 0.00 0.0
1923 71 42 0.00 0.0
1922 78 47 0.00 0.0
1921 81 64 n/a 0.0
1920 84 70 0.00 0.0
1919 81 54 0.00 0.0
1918 66 47 0.00 0.0
1917 85 56 0.00 0.0
1916 61 37 0.00 0.0
1915 80 45 n/a 0.0
1914 68 51 0.97 0.0
1913 76 45 n/a 0.0
1912 67 52 1.00 0.0
1911 90 55 0.00 0.0
1910 72 51 n/a 0.0
1909 68 48 0.00 0.0
1908 84 57 0.00 0.0
1907 86 62 n/a 0.0
1906 70 54 n/a 0.0
1905 71 56 0.00 0.0
1904 65 33 0.00 0.0
1903 60 52 0.12 0.0
1902 79 46 n/a 0.0
1901 72 52 0.00 0.0
1900 77 56 0.06 0.0
1899 80 50 n/a 0.0
1898 75 47 0.00 0.0
1897 85 67 n/a 0.0
1896 78 60 0.00 0.0
1895 78 62 0.54 0.0
What's the all-time high for Waterloo on 9/15?
For the date of Sep 15, the highest temperature ever reached in Waterloo history is 100 °F which happened in 1927.
Highest Temperatures in Waterloo on September 15
Rank Temperature Year
1 100 °F 1927
2 97 °F 1939
3 95 °F 1955
4 91 °F 1994
4 91 °F 2017
6 90 °F 1911
6 90 °F 1935
8 89 °F 1948
8 89 °F 2018
10 88 °F 2019
What's the all-time low for Waterloo on 9/15?
For the date of Sep 15, the lowest temperature ever reached in Waterloo history is 30 °F which happened in 2007.
Lowest Temperatures in Waterloo on September 15
Rank Temperature Year
1 30 °F 2007
2 31 °F 2011
3 33 °F 1904
4 35 °F 1984
5 37 °F 1916
6 38 °F 2014
6 38 °F 1999
8 39 °F 1989
9 40 °F 1985
9 40 °F 1979
Lowest High Temperatures in Waterloo on September 15
Rank Temperature Year
1 55 °F 1993
2 56 °F 1973
3 58 °F 1965
3 58 °F 1959
3 58 °F 1983
6 59 °F 2011
7 60 °F 1903
7 60 °F 1970
9 61 °F 1916
9 61 °F 1982
What's the most it has ever rained in Waterloo on 9/15?
For the date of Sep 15, the most precipitation ever recorded in Waterloo history is 1.51 inches which happened in 2016.
All-Time Most Precipitation in Waterloo on September 15
Rank Precipitation Year
1 1.51 inches 2016
2 1.23 inches 1941
3 1.00 inches 1912
4 0.97 inches 1914
5 0.79 inches 1970
6 0.60 inches 1983
7 0.54 inches 1895
8 0.52 inches 1938
9 0.38 inches 2013
10 0.27 inches 1994
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.
© H Brothers Inc, 2021–2024
Contact us | Privacy policy