Waterloo June 30 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of June 30.
June 30 All-Time Records
1895–2024
Highest temperature 103 °F 1931
Lowest temperature 45 °F 1943
Lowest daily high 65 °F 1986
Highest daily low 76 °F 1931
Most precipitation 2.29 inches 2018
Most snow none -
June 30 Average Weather
1991–2020 1
Average high 83.1 °F
Average low 61.8 °F
Chance precipitation 34.8%
Chance snow 0%
Waterloo June 30 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 86 66 0.01 0.0
2022 90 71 0.00 0.0
2021 88 63 0.00 0.0
2020 87 74 0.00 0.0
2019 95 71 0.05 0.0
2018 93 67 2.29 0.0
2017 80 59 0.00 0.0
2016 78 60 0.45 0.0
2015 81 59 0.00 0.0
2014 78 61 1.66 0.0
2013 77 57 0.00 0.0
2012 91 64 0.00 0.0
2011 94 69 0.00 0.0
2010 77 51 0.00 0.0
2009 71 58 0.00 0.0
2008 82 55 0.00 0.0
2007 79 51 0.00 0.0
2006 89 62 0.00 0.0
2005 83 62 0.00 0.0
2004 82 52 0.00 0.0
2003 86 58 0.00 0.0
2002 94 75 0.00 0.0
2001 89 67 0.28 0.0
2000 82 59 0.00 0.0
1999 78 59 0.05 0.0
1998 80 64 0.00 0.0
1997 84 67 0.02 0.0
1996 88 66 0.00 0.0
1995 72 53 0.00 0.0
1994 83 56 0.00 0.0
1993 73 62 0.01 0.0
1992 86 61 0.00 0.0
1991 96 74 0.00 0.0
1990 92 69 0.00 0.0
1989 85 57 0.00 0.0
1988 76 51 0.00 0.0
1987 80 56 0.00 0.0
1986 65 61 0.35 0.0
1985 80 57 0.00 0.0
1984 78 53 0.00 0.0
1983 88 64 0.00 0.0
1982 75 56 0.00 0.0
1981 83 54 0.00 0.0
1980 80 51 0.00 0.0
1979 82 58 0.00 0.0
1978 91 70 0.00 0.0
1977 75 60 1.27 0.0
1976 77 52 0.00 0.0
1975 90 72 0.00 0.0
1974 87 58 0.00 0.0
1973 81 53 0.00 0.0
1972 87 60 0.00 0.0
1971 79 59 0.11 0.0
1970 93 72 0.00 0.0
1969 78 56 0.00 0.0
1968 83 59 0.00 0.0
1967 86 64 0.00 0.0
1966 90 70 0.00 0.0
1965 75 54 0.00 0.0
1964 90 65 0.00 0.0
1963 95 68 0.00 0.0
1962 84 63 0.00 0.0
1961 92 75 0.00 0.0
1960 76 58 0.02 0.0
1959 66 53 0.75 0.0
1958 89 64 0.00 0.0
1957 87 57 0.00 0.0
1956 94 72 0.00 0.0
1955 94 68 0.15 0.0
1954 84 63 0.00 0.0
1953 92 73 0.00 0.0
1952 89 64 0.00 0.0
1951 69 50 0.00 0.0
1950 n/a n/a n/a n/a
1949 92 72 0.00 0.0
1948 74 54 0.04 0.0
1947 79 62 1.07 0.0
1946 81 68 n/a 0.0
1945 74 65 n/a 0.0
1944 82 51 0.00 0.0
1943 67 45 0.00 0.0
1942 81 59 0.00 0.0
1941 95 69 n/a 0.0
1940 87 58 0.00 0.0
1939 77 57 0.05 0.0
1938 82 63 n/a 0.0
1937 80 55 0.00 0.0
1936 84 64 0.00 0.0
1935 85 62 n/a 0.0
1934 95 68 n/a 0.0
1933 99 70 n/a 0.0
1932 94 62 0.00 0.0
1931 103 76 0.00 0.0
1930 78 57 0.25 0.0
1929 88 68 n/a 0.0
1928 85 56 0.00 0.0
1927 97 71 0.00 0.0
1926 91 53 0.00 0.0
1925 81 47 0.00 0.0
1924 76 48 n/a 0.0
1923 75 49 0.00 0.0
1922 87 65 n/a 0.0
1921 95 70 0.00 0.0
1920 89 61 0.01 0.0
1919 89 57 0.00 0.0
1918 78 54 n/a 0.0
1917 85 64 n/a 0.0
1916 92 68 n/a 0.0
1915 76 55 0.00 0.0
1914 78 54 n/a 0.0
1913 95 75 0.00 0.0
1912 91 62 n/a 0.0
1911 92 65 0.00 0.0
1910 96 64 0.00 0.0
1909 89 67 0.00 0.0
1908 77 54 n/a 0.0
1907 85 66 n/a 0.0
1906 84 60 0.04 0.0
1905 81 63 1.73 0.0
1904 79 56 0.00 0.0
1903 85 60 n/a 0.0
1902 77 53 0.04 0.0
1901 98 62 n/a 0.0
1900 82 53 0.00 0.0
1899 81 52 0.00 0.0
1898 81 67 0.05 0.0
1897 84 66 n/a 0.0
1896 89 58 0.00 0.0
1895 82 60 0.00 0.0
What's the all-time high for Waterloo on 6/30?
For the date of Jun 30, the highest temperature ever reached in Waterloo history is 103 °F which happened in 1931.
Highest Temperatures in Waterloo on June 30
Rank Temperature Year
1 103 °F 1931
2 99 °F 1933
3 98 °F 1901
4 97 °F 1927
5 96 °F 1991
5 96 °F 1910
7 95 °F 1963
7 95 °F 1913
7 95 °F 2019
7 95 °F 1934
7 95 °F 1941
7 95 °F 1921
What's the all-time low for Waterloo on 6/30?
For the date of Jun 30, the lowest temperature ever reached in Waterloo history is 45 °F which happened in 1943.
Lowest Temperatures in Waterloo on June 30
Rank Temperature Year
1 45 °F 1943
2 47 °F 1925
3 48 °F 1924
4 49 °F 1923
5 50 °F 1951
6 51 °F 2010
6 51 °F 2007
6 51 °F 1980
6 51 °F 1944
6 51 °F 1988
Lowest High Temperatures in Waterloo on June 30
Rank Temperature Year
1 65 °F 1986
2 66 °F 1959
3 67 °F 1943
4 69 °F 1951
5 71 °F 2009
6 72 °F 1995
7 73 °F 1993
8 74 °F 1948
8 74 °F 1945
10 75 °F 1982
10 75 °F 1965
10 75 °F 1977
10 75 °F 1923
What's the most it has ever rained in Waterloo on 6/30?
For the date of Jun 30, the most precipitation ever recorded in Waterloo history is 2.29 inches which happened in 2018.
All-Time Most Precipitation in Waterloo on June 30
Rank Precipitation Year
1 2.29 inches 2018
2 1.73 inches 1905
3 1.66 inches 2014
4 1.27 inches 1977
5 1.07 inches 1947
6 0.75 inches 1959
7 0.45 inches 2016
8 0.35 inches 1986
9 0.28 inches 2001
10 0.25 inches 1930
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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