Lowest August Temperatures in Waterloo
A list of the lowest temperatures ever recorded in the month of
August in
Waterloo, Iowa from 1895–2024.
What's the coldest it has ever gotten in Waterloo in August?
The coldest August temperature in Waterloo, Iowa history was 33 °F which occurred on August 20, 1950.
| Rank |
Temperature |
Date |
| 1 |
33 °F |
August 20, 1950 |
| 2 |
34 °F |
August 30, 1915 |
| 3 |
36 °F |
August 31, 1915 |
| 4 |
37 °F |
August 29, 1946 |
| 5 |
38 °F |
August 31, 1967 |
| 6 |
39 °F |
August 21, 2004 |
| 6 |
39 °F |
August 14, 2004 |
| 6 |
39 °F |
August 14, 1964 |
| 6 |
39 °F |
August 28, 1935 |
| 6 |
39 °F |
August 25, 1915 |
| 11 |
40 °F |
August 28, 1986 |
| 11 |
40 °F |
August 25, 1958 |
| 11 |
40 °F |
August 29, 1935 |
| 11 |
40 °F |
August 26, 1934 |
| 11 |
40 °F |
August 22, 1923 |
| 16 |
41 °F |
August 31, 2009 |
| 16 |
41 °F |
August 29, 1988 |
| 16 |
41 °F |
August 27, 1971 |
| 16 |
41 °F |
August 28, 1965 |
| 16 |
41 °F |
August 13, 1964 |
| 16 |
41 °F |
August 30, 1946 |
| 16 |
41 °F |
August 24, 1942 |
| 16 |
41 °F |
August 29, 1934 |
| 16 |
41 °F |
August 25, 1934 |
| 16 |
41 °F |
August 24, 1934 |
| 16 |
41 °F |
August 9, 1927 |
| 16 |
41 °F |
August 28, 1916 |
| 16 |
41 °F |
August 27, 1916 |
| 16 |
41 °F |
August 20, 1897 |