Waterloo Consecutive 100 Degree Days

This page shows the record for the most days in a row in Waterloo, Iowa where the high temperature was at least 100 °F, from 1895–2024.
City:
Most days in a row where the
temperature was
Longest Streak: 13 Days
Between Jul 5–17, 1936, the daily high temperature in Waterloo was always at least 100 °F – a span of 13 days.
# Days When
13 Jul 5–17, 1936
9 Jun 23 – Jul 1, 1931
7 Jul 20–26, 1901
6 Jul 19–24, 1934
6 Jul 26–31, 1916
5 Jun 25–29, 1934
5 May 29 – Jun 2, 1934
4 Aug 14–17, 1988
4 Jul 31 – Aug 3, 1988
4 Jul 29 – Aug 1, 1917
3 Jul 21–23, 1923
3 Aug 20–22, 1916
3 Jul 16–18, 1916
3 Jul 14–16, 1901
2 Sep 3–4, 2023
2 Aug 23–24, 2023
2 Jul 22–23, 2012
2 Jul 9–10, 1989
2 Jun 20–21, 1988
2 Jul 30–31, 1955