Great Falls Consecutive 90 Degree Days
This page shows the record for the most days in a row in
Great Falls, Montana where the
high temperature was
at least 90 °F, from 1892–2024.
Longest Streak: 18 Days
Between Jul 30 – Aug 16, 1971, the daily high temperature in Great Falls was always at least 90 °F – a span of 18 days.
| # Days |
When |
| 18 |
Jul 30 – Aug 16, 1971 |
| 13 |
Jun 30 – Jul 12, 1985 |
| 12 |
Jul 24 – Aug 4, 2021 |
| 12 |
Jul 12–23, 2007 |
| 12 |
Aug 7–18, 1933 |
| 12 |
Jul 16–27, 1917 |
| 11 |
Jul 13–23, 1960 |
| 11 |
Jul 24 – Aug 3, 1914 |
| 10 |
Jul 1–10, 2017 |
| 10 |
Jul 15–24, 2003 |
| 10 |
Aug 4–13, 1930 |
| 10 |
Jun 18–27, 1919 |
| 10 |
Jul 27 – Aug 5, 1895 |
| * 10 |
Jul 18 – Aug 12, 1893 |
| 9 |
Aug 22–30, 2013 |
| 9 |
Jul 22–30, 2006 |
| 9 |
Jul 14–22, 1974 |
| 9 |
Jul 30 – Aug 7, 1949 |
| 9 |
Jul 22–30, 1932 |
| 9 |
Jul 26 – Aug 3, 1920 |
Note: streaks marked with a (*) contain days with missing data