Boulder Consecutive 80 Degree Days
This page shows the record for the most days in a row in
Boulder, Colorado where the
high temperature was
at least 80 °F, from 1893–2024.
Longest Streak: 70 Days
Between Jun 19 – Aug 27, 1949, the daily high temperature in Boulder was always at least 80 °F – a span of 70 days.
| # Days |
When |
| 70 |
Jun 19 – Aug 27, 1949 |
| 66 |
Jun 9 – Aug 13, 1980 |
| 65 |
Jul 9 – Sep 11, 2012 |
| 63 |
Jun 25 – Aug 26, 2019 |
| 62 |
Jun 12 – Aug 12, 2002 |
| 59 |
Jul 12 – Sep 8, 2007 |
| * 59 |
Jun 25 – Aug 23, 1934 |
| 54 |
Jun 19 – Aug 11, 1963 |
| 52 |
Jul 13 – Sep 2, 2011 |
| 52 |
Jun 27 – Aug 17, 2003 |
| 52 |
Jun 16 – Aug 6, 1954 |
| 51 |
Jun 17 – Aug 6, 2008 |
| * 50 |
Jul 24 – Sep 12, 1983 |
| * 50 |
Jun 19 – Aug 8, 1917 |
| 49 |
Jun 22 – Aug 9, 2001 |
| 49 |
Jul 20 – Sep 6, 1995 |
| * 49 |
Jun 19 – Aug 7, 1966 |
| 49 |
Jun 19 – Aug 6, 1955 |
| 47 |
Jun 12 – Jul 28, 1974 |
| * 47 |
Jun 14 – Jul 31, 1931 |
Note: streaks marked with a (*) contain days with missing data