Boise Consecutive 90 Degree Days
This page shows the record for the most days in a row in
Boise, Idaho where the
high temperature was
at least 90 °F, from 1911–2024.
Longest Streak: 45 Days
Between Jun 17 – Jul 31, 2021, the daily high temperature in Boise was always at least 90 °F – a span of 45 days.
| # Days |
When |
| 45 |
Jun 17 – Jul 31, 2021 |
| 45 |
Jun 30 – Aug 13, 1930 |
| 44 |
Jun 30 – Aug 12, 2017 |
| 44 |
Jul 8 – Aug 20, 1994 |
| 40 |
Jul 7 – Aug 15, 1961 |
| 32 |
Jul 7 – Aug 7, 1931 |
| 30 |
Jul 5 – Aug 3, 2023 |
| 30 |
Jul 4 – Aug 2, 2018 |
| 29 |
Jul 19 – Aug 16, 1971 |
| 28 |
Jul 28 – Aug 24, 1929 |
| 27 |
Jul 4–30, 1960 |
| 25 |
Jul 9 – Aug 2, 2003 |
| 23 |
Jul 19 – Aug 10, 2000 |
| 22 |
Jul 11 – Aug 1, 2022 |
| 22 |
Jul 16 – Aug 6, 2020 |
| 22 |
Jul 15 – Aug 5, 2009 |
| 22 |
Jul 8–29, 2006 |
| 22 |
Jul 22 – Aug 12, 1978 |
| 22 |
Jul 5–26, 1917 |
| 20 |
Aug 7–26, 2022 |