Highest May Temperatures in Idaho Falls
A list of the highest temperatures ever recorded in the month of
May in
Idaho Falls, Idaho from 1948–2024.
What's the hottest it has ever gotten in Idaho Falls in May?
The hottest May temperature in Idaho Falls, Idaho history was 94 °F which has occurred twice, most recently on May 29, 2003.
| Rank |
Temperature |
Date |
| 1 |
94 °F |
May 29, 2003 |
| 1 |
94 °F |
May 28, 2003 |
| 3 |
93 °F |
May 16, 1964 |
| 4 |
91 °F |
May 30, 2003 |
| 5 |
90 °F |
May 29, 2020 |
| 6 |
89 °F |
May 30, 2020 |
| 6 |
89 °F |
May 18, 2009 |
| 6 |
89 °F |
May 31, 1986 |
| 6 |
89 °F |
May 28, 1983 |
| 6 |
89 °F |
May 19, 1958 |
| 6 |
89 °F |
May 19, 1954 |
| 12 |
88 °F |
May 31, 2017 |
| 12 |
88 °F |
May 13, 2013 |
| 12 |
88 °F |
May 21, 2012 |
| 12 |
88 °F |
May 25, 2003 |
| 12 |
88 °F |
May 30, 2002 |
| 12 |
88 °F |
May 23, 1979 |
| 12 |
88 °F |
May 31, 1972 |
| 12 |
88 °F |
May 27, 1966 |
| 12 |
88 °F |
May 15, 1954 |