Lowest September Temperatures in West Glacier

A list of the lowest temperatures ever recorded in the month of September in West Glacier, Montana from 1949–2024.
What's the coldest it has ever gotten in West Glacier in September?
The coldest September temperature in West Glacier, Montana history was 18 °F which has occurred twice, most recently on September 29, 1985.
Rank Temperature Date
1 18 °F September 29, 1985
1 18 °F September 28, 1985
3 19 °F September 23, 2000
3 19 °F September 16, 1970
5 20 °F September 15, 1970
5 20 °F September 14, 1970
5 20 °F September 27, 1961
8 21 °F September 24, 2000
8 21 °F September 30, 1985
10 22 °F September 28, 1984
10 22 °F September 20, 1983
12 23 °F September 21, 1995
12 23 °F September 29, 1984
12 23 °F September 24, 1984
12 23 °F September 16, 1973
16 24 °F September 21, 1971
16 24 °F September 17, 1971
16 24 °F September 16, 1971
19 25 °F September 25, 2000
19 25 °F September 30, 1984
19 25 °F September 21, 1983
19 25 °F September 17, 1973
19 25 °F September 18, 1971
19 25 °F September 19, 1957