Waterloo May 18 Weather Records

Daily averages and all-time records for weather in Waterloo, Iowa for the date of May 18.
May 18 All-Time Records
1895–2024
Highest temperature 98 °F 1934
Lowest temperature 32 °F 2002
Lowest daily high 50 °F 1991
Highest daily low 69 °F 1911
Most precipitation 1.92 inches 1902
Most snow none -
May 18 Average Weather
1991–2020 1
Average high 72.5 °F
Average low 49.7 °F
Chance precipitation 42.3%
Chance snow 0%
Waterloo May 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2024 90 59 0.00 0.0
2023 85 54 0.00 0.0
2022 76 54 0.13 0.0
2021 65 58 0.41 0.0
2020 59 52 0.01 0.0
2019 80 50 1.82 0.0
2018 81 51 0.00 0.0
2017 62 49 0.00 0.0
2016 69 37 0.00 0.0
2015 58 40 0.00 0.0
2014 70 42 0.01 0.0
2013 83 57 0.00 0.0
2012 89 57 0.00 0.0
2011 71 38 0.00 0.0
2010 73 44 0.00 0.0
2009 74 51 0.00 0.0
2008 65 42 0.00 0.0
2007 76 43 0.00 0.0
2006 68 45 0.00 0.0
2005 67 56 0.30 0.0
2004 69 53 0.00 0.0
2003 81 51 0.00 0.0
2002 62 32 0.00 0.0
2001 78 50 0.00 0.0
2000 67 49 1.74 0.0
1999 67 52 0.01 0.0
1998 93 67 0.00 0.0
1997 84 56 0.11 0.0
1996 92 62 0.00 0.0
1995 68 44 0.00 0.0
1994 80 49 0.00 0.0
1993 65 41 0.00 0.0
1992 75 47 0.00 0.0
1991 50 47 0.05 0.0
1990 74 40 0.63 0.0
1989 73 59 0.34 0.0
1988 78 48 0.00 0.0
1987 90 62 0.47 0.0
1986 65 44 0.00 0.0
1985 78 47 0.00 0.0
1984 76 63 0.19 0.0
1983 58 50 1.24 0.0
1982 79 61 0.00 0.0
1981 62 47 0.00 0.0
1980 58 53 0.11 0.0
1979 73 55 0.57 0.0
1978 78 46 0.00 0.0
1977 88 63 0.00 0.0
1976 70 35 0.00 0.0
1975 86 57 0.00 0.0
1974 60 52 0.53 0.0
1973 81 52 0.00 0.0
1972 84 55 0.00 0.0
1971 69 52 1.64 0.0
1970 85 55 0.00 0.0
1969 58 42 0.00 0.0
1968 50 39 0.18 0.0
1967 90 54 0.02 0.0
1966 70 46 0.00 0.0
1965 72 46 0.04 0.0
1964 89 56 0.00 0.0
1963 71 51 0.00 0.0
1962 90 67 0.06 0.0
1961 54 46 0.00 0.0
1960 67 49 0.67 0.0
1959 65 55 0.24 0.0
1958 74 52 0.00 0.0
1957 58 44 0.00 0.0
1956 86 37 0.00 0.0
1955 78 45 0.00 0.0
1954 66 42 0.00 0.0
1953 68 53 0.11 0.0
1952 64 40 0.00 0.0
1951 83 59 0.19 0.0
1950 70 50 0.00 0.0
1949 79 64 0.00 0.0
1948 72 45 0.00 0.0
1947 79 43 0.03 0.0
1946 69 48 n/a 0.0
1945 62 33 0.00 0.0
1944 79 54 0.00 0.0
1943 63 49 n/a 0.0
1942 62 48 n/a 0.0
1941 80 52 0.00 0.0
1940 65 50 n/a 0.0
1939 77 45 0.00 0.0
1938 81 60 0.08 0.0
1937 63 52 n/a 0.0
1936 76 50 n/a 0.0
1935 67 45 0.00 0.0
1934 98 61 0.00 0.0
1933 84 62 0.53 0.0
1932 77 51 0.00 0.0
1931 74 61 n/a 0.0
1930 50 39 n/a 0.0
1929 70 49 n/a 0.0
1928 73 57 0.55 0.0
1927 75 50 0.45 0.0
1926 70 49 n/a 0.0
1925 73 33 0.00 0.0
1924 66 46 n/a 0.0
1923 69 45 n/a 0.0
1922 64 49 0.31 0.0
1921 82 56 0.38 0.0
1920 73 44 0.00 0.0
1919 75 41 n/a 0.0
1918 77 56 n/a 0.0
1917 87 54 n/a 0.0
1916 60 35 0.00 0.0
1915 60 34 0.00 0.0
1914 76 46 0.00 0.0
1913 67 43 0.00 0.0
1912 69 42 0.00 0.0
1911 84 69 0.00 0.0
1910 60 43 0.00 0.0
1909 73 53 n/a 0.0
1908 86 61 n/a 0.0
1907 75 47 0.00 0.0
1906 85 49 0.00 0.0
1905 54 42 0.00 0.0
1904 65 46 0.00 0.0
1903 77 62 n/a 0.0
1902 87 61 1.92 0.0
1901 78 55 0.00 0.0
1900 60 46 0.16 0.0
1899 69 37 n/a 0.0
1898 79 53 n/a 0.0
1897 86 47 n/a 0.0
1896 68 52 0.16 0.0
1895 66 46 0.00 0.0
What's the all-time high for Waterloo on 5/18?
For the date of May 18, the highest temperature ever reached in Waterloo history is 98 °F which happened in 1934.
Highest Temperatures in Waterloo on May 18
Rank Temperature Year
1 98 °F 1934
2 93 °F 1998
3 92 °F 1996
4 90 °F 1967
4 90 °F 2024
4 90 °F 1962
4 90 °F 1987
8 89 °F 2012
8 89 °F 1964
10 88 °F 1977
What's the all-time low for Waterloo on 5/18?
For the date of May 18, the lowest temperature ever reached in Waterloo history is 32 °F which happened in 2002.
Lowest Temperatures in Waterloo on May 18
Rank Temperature Year
1 32 °F 2002
2 33 °F 1945
2 33 °F 1925
4 34 °F 1915
5 35 °F 1916
5 35 °F 1976
7 37 °F 1956
7 37 °F 2016
7 37 °F 1899
10 38 °F 2011
Lowest High Temperatures in Waterloo on May 18
Rank Temperature Year
1 50 °F 1968
1 50 °F 1991
1 50 °F 1930
4 54 °F 1905
4 54 °F 1961
6 58 °F 2015
6 58 °F 1969
6 58 °F 1980
6 58 °F 1957
6 58 °F 1983
What's the most it has ever rained in Waterloo on 5/18?
For the date of May 18, the most precipitation ever recorded in Waterloo history is 1.92 inches which happened in 1902.
All-Time Most Precipitation in Waterloo on May 18
Rank Precipitation Year
1 1.92 inches 1902
2 1.82 inches 2019
3 1.74 inches 2000
4 1.64 inches 1971
5 1.24 inches 1983
6 0.67 inches 1960
7 0.63 inches 1990
8 0.57 inches 1979
9 0.55 inches 1928
10 0.53 inches 1974
10 0.53 inches 1933
Weather Station Details
Years Station Coordinates
1950–2024 Waterloo Municipal Airport location
1895–1950 Waterloo location