Waterloo October 21 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of October 21.
October 21 All-Time Records
1895–2024
Highest temperature 86 °F 1947
Lowest temperature 13 °F 1930
Lowest daily high 35 °F 1916
Highest daily low 60 °F 1920
Most precipitation 0.95 inches 2017
Most snow 0.5 inches 1916
October 21 Average Weather
1991–2020 1
Average high 59.3 °F
Average low 36.8 °F
Chance precipitation 26.3%
Chance snow 1.6%
Waterloo October 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 68 40 0.00 0.0
2022 79 38 0.00 0.0
2021 52 34 0.10 0.0
2020 49 35 0.01 0.0
2019 59 45 0.79 0.0
2018 55 22 0.00 0.0
2017 71 53 0.95 0.0
2016 56 27 0.00 0.0
2015 65 43 0.33 0.0
2014 60 33 0.00 0.0
2013 44 23 0.00 0.0
2012 70 37 0.00 0.0
2011 60 25 0.00 0.0
2010 58 29 0.00 0.0
2009 70 46 0.20 0.0
2008 54 25 0.00 0.0
2007 75 49 0.00 0.0
2006 41 34 0.37 0.0
2005 58 29 0.00 0.0
2004 58 49 0.00 0.0
2003 67 42 0.00 0.0
2002 54 37 0.00 0.0
2001 69 37 0.00 0.0
2000 76 40 0.00 0.0
1999 77 42 0.00 0.0
1998 57 30 0.00 0.0
1997 46 29 0.00 0.0
1996 60 43 0.02 0.0
1995 48 29 0.00 0.0
1994 76 44 0.00 0.0
1993 54 32 0.00 0.0
1992 62 29 0.00 0.0
1991 71 42 0.00 0.0
1990 49 27 0.06 0.0
1989 66 28 0.00 0.0
1988 54 31 0.00 0.0
1987 45 28 0.00 0.0
1986 73 46 0.00 0.0
1985 57 51 0.00 0.0
1984 51 32 0.00 0.0
1983 49 43 0.42 0.0
1982 45 25 0.00 0.0
1981 50 33 0.03 0.0
1980 55 35 0.00 0.0
1979 78 47 0.77 0.0
1978 82 48 0.00 0.0
1977 67 41 0.18 0.0
1976 40 21 0.00 0.0
1975 71 33 0.00 0.0
1974 61 33 0.00 0.0
1973 71 36 0.00 0.0
1972 49 40 0.19 0.0
1971 66 54 0.10 0.0
1970 67 43 0.00 0.0
1969 61 30 0.00 0.0
1968 70 40 0.00 0.0
1967 63 20 0.00 0.0
1966 67 46 0.00 0.0
1965 55 38 0.27 0.0
1964 53 26 0.00 0.0
1963 73 58 0.26 0.0
1962 66 34 0.00 0.0
1961 55 35 0.00 0.0
1960 58 22 0.00 0.0
1959 63 35 0.07 0.0
1958 66 49 0.00 0.0
1957 58 41 0.00 0.0
1956 73 45 0.00 0.0
1955 57 34 0.00 0.0
1954 65 41 0.00 0.0
1953 80 52 0.00 0.0
1952 54 21 0.00 0.0
1951 62 47 0.48 0.0
1950 76 41 0.00 0.0
1949 65 42 0.25 0.0
1948 64 30 0.00 0.0
1947 86 51 0.00 0.0
1946 69 41 0.00 0.0
1945 56 44 0.00 0.0
1944 60 40 0.00 0.0
1943 61 46 n/a 0.0
1942 62 40 n/a 0.0
1941 65 52 n/a 0.0
1940 67 41 0.00 0.0
1939 76 42 n/a 0.0
1938 71 34 0.00 0.0
1937 44 32 0.00 0.0
1936 50 36 n/a 0.0
1935 65 38 n/a 0.0
1934 72 50 0.00 0.0
1933 58 49 0.32 0.0
1932 71 25 n/a 0.0
1931 77 50 0.00 0.0
1930 43 13 0.00 0.0
1929 58 30 0.00 0.0
1928 70 48 n/a 0.0
1927 69 33 0.00 0.0
1926 64 32 0.00 0.0
1925 43 23 0.00 0.0
1924 61 35 0.00 0.0
1923 56 21 0.00 0.0
1922 73 39 n/a 0.0
1921 63 33 0.00 0.0
1920 81 60 0.01 0.0
1919 54 37 0.00 0.0
1918 68 32 0.00 0.0
1917 42 20 0.00 0.0
1916 35 20 0.05 0.5
1915 60 35 0.00 0.0
1914 77 47 0.00 0.0
1913 39 19 n/a 0.0
1912 55 45 n/a 0.0
1911 51 31 0.00 0.0
1910 43 38 n/a 0.0
1909 54 43 n/a 0.0
1908 74 55 0.33 0.0
1907 58 26 0.00 0.0
1906 69 50 n/a 0.0
1905 49 31 0.00 0.0
1904 57 42 0.01 0.0
1903 72 38 0.00 0.0
1902 68 40 0.00 0.0
1901 80 37 0.00 0.0
1900 68 58 n/a 0.0
1899 74 44 0.00 0.0
1898 42 36 0.02 0.0
1897 59 44 0.00 0.0
1896 49 18 0.00 0.0
1895 69 24 0.00 0.0
What's the all-time high for Waterloo on 10/21?
For the date of Oct 21, the highest temperature ever reached in Waterloo history is 86 °F which happened in 1947.
Highest Temperatures in Waterloo on October 21
Rank Temperature Year
1 86 °F 1947
2 82 °F 1978
3 81 °F 1920
4 80 °F 1901
4 80 °F 1953
6 79 °F 2022
7 78 °F 1979
8 77 °F 1931
8 77 °F 1999
8 77 °F 1914
What's the all-time low for Waterloo on 10/21?
For the date of Oct 21, the lowest temperature ever reached in Waterloo history is 13 °F which happened in 1930.
Lowest Temperatures in Waterloo on October 21
Rank Temperature Year
1 13 °F 1930
2 18 °F 1896
3 19 °F 1913
4 20 °F 1967
4 20 °F 1917
4 20 °F 1916
7 21 °F 1976
7 21 °F 1952
7 21 °F 1923
10 22 °F 1960
10 22 °F 2018
Lowest High Temperatures in Waterloo on October 21
Rank Temperature Year
1 35 °F 1916
2 39 °F 1913
3 40 °F 1976
4 41 °F 2006
5 42 °F 1917
5 42 °F 1898
7 43 °F 1930
7 43 °F 1910
7 43 °F 1925
10 44 °F 1937
10 44 °F 2013
What's the most it has ever rained in Waterloo on 10/21?
For the date of Oct 21, the most precipitation ever recorded in Waterloo history is 0.95 inches which happened in 2017.
All-Time Most Precipitation in Waterloo on October 21
Rank Precipitation Year
1 0.95 inches 2017
2 0.79 inches 2019
3 0.77 inches 1979
4 0.48 inches 1951
5 0.42 inches 1983
6 0.37 inches 2006
7 0.33 inches 1908
7 0.33 inches 2015
9 0.32 inches 1933
10 0.27 inches 1965
All-Time Most Snow in Waterloo on October 21
Rank Precipitation Year
1 0.5 inches 1916
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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