Helena Consecutive 90 Degree Days
This page shows the record for the most days in a row in
Helena, Montana where the
high temperature was
at least 90 °F, from 1893–2024.
Longest Streak: 19 Days
Between Jul 14 – Aug 1, 2021, the daily high temperature in Helena was always at least 90 °F – a span of 19 days.
| # Days |
When |
| 19 |
Jul 14 – Aug 1, 2021 |
| 17 |
Jul 14–30, 2006 |
| 16 |
Aug 7–22, 2022 |
| 14 |
Jun 30 – Jul 13, 1985 |
| 13 |
Jul 11–23, 2007 |
| 12 |
Jul 12–23, 2022 |
| 12 |
Aug 10–21, 1967 |
| 11 |
Jul 26 – Aug 5, 2022 |
| 10 |
Jun 25 – Jul 4, 2015 |
| 10 |
Jul 18–27, 2013 |
| 10 |
Aug 7–16, 2003 |
| 10 |
Jul 15–24, 2003 |
| 10 |
Jul 25 – Aug 3, 2000 |
| 10 |
Jul 14–23, 1960 |
| 9 |
Aug 30 – Sep 7, 2022 |
| 9 |
Jul 31 – Aug 8, 2019 |
| 9 |
Jul 1–9, 2017 |
| 9 |
Aug 10–18, 2001 |
| 9 |
Aug 4–12, 1978 |
| 9 |
Jul 30 – Aug 7, 1949 |