Lowest September Temperatures in Idaho Falls
A list of the lowest temperatures ever recorded in the month of
September in
Idaho Falls, Idaho from 1948–2024.
What's the coldest it has ever gotten in Idaho Falls in September?
The coldest September temperature in Idaho Falls, Idaho history was 18 °F which has occurred 5 times, most recently on September 24, 2000.
Rank |
Temperature |
Date |
1 |
18 °F |
September 24, 2000 |
1 |
18 °F |
September 28, 1999 |
1 |
18 °F |
September 30, 1985 |
1 |
18 °F |
September 29, 1985 |
1 |
18 °F |
September 20, 1983 |
6 |
21 °F |
September 29, 1999 |
6 |
21 °F |
September 28, 1985 |
6 |
21 °F |
September 25, 1970 |
6 |
21 °F |
September 18, 1965 |
10 |
22 °F |
September 21, 1983 |
10 |
22 °F |
September 19, 1965 |
12 |
23 °F |
September 23, 1985 |
12 |
23 °F |
September 29, 1984 |
14 |
24 °F |
September 12, 2014 |
14 |
24 °F |
September 25, 2000 |
14 |
24 °F |
September 27, 1999 |
14 |
24 °F |
September 18, 1971 |
14 |
24 °F |
September 17, 1965 |
14 |
24 °F |
September 27, 1964 |
14 |
24 °F |
September 29, 1959 |
14 |
24 °F |
September 30, 1954 |