Weather on August 31 at Glacier Bay
Glacier Bay National Park and Preserve
Based on 55 years of data from Juneau, AK
Planning Your Visit
August 31st in Glacier Bay National Park (via Juneau, AK) typically brings cool summer weather, with average highs around 59°F and lows near 47°F. Over 55 years of records, the warmest August 31st was in 2023 (60°F average), while the coldest was 1973 (46°F) — a 14°F range across recorded history. Rain or other precipitation has occurred on about 71% of August 31st dates historically, with the wettest August 31st recording 4.06" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for August 31st in Glacier Bay? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 66°F | 46°F | 0" | 0" |
| 2024 | 58°F | 51°F | 2.41" | 0" |
| 2023 | 64°F | 55°F | 0.23" | 0" |
| 2022 | 64°F | 50°F | 0.03" | 0" |
| 2021 | 67°F | 46°F | 0" | 0" |
| 2020 | 58°F | 52°F | 1.02" | 0" |
| 2019 | 70°F | 42°F | 0" | 0" |
| 2018 | 58°F | 52°F | 1.32" | 0" |
| 2017 | 55°F | 50°F | 3.02" | 0" |
| 2016 | 64°F | 43°F | 0" | 0" |
| 2015 | 51°F | 44°F | 1.96" | 0" |
| 2014 | 54°F | 50°F | 0.91" | 0" |
| 2013 | 57°F | 54°F | 2.57" | 0" |
| 2012 | 64°F | 40°F | 0" | 0" |
| 2011 | 56°F | 48°F | 1.35" | 0" |
| 2010 | 62°F | 47°F | 0.03" | 0" |
| 2009 | 62°F | 42°F | 0" | 0" |
| 2008 | 55°F | 39°F | 0" | 0" |
| 2007 | 59°F | 51°F | 0.2" | 0" |
| 2006 | 55°F | 50°F | 3.63" | 0" |
| 2005 | 53°F | 49°F | 0.66" | 0" |
| 2004 | 67°F | 42°F | 0" | 0" |
| 2003 | 52°F | 50°F | 0.38" | 0" |
| 2002 | 57°F | 49°F | 0.79" | 0" |
| 2001 | 56°F | 49°F | 0.36" | 0" |
| 2000 | 68°F | 41°F | 0" | 0" |
| 1999 | 57°F | 48°F | 0" | 0" |
| 1998 | 61°F | 48°F | 4.06" | 0" |
| 1997 | 63°F | 52°F | 0" | 0" |
| 1996 | 56°F | 50°F | 0.25" | 0" |
| 1995 | 55°F | 51°F | 0.36" | 0" |
| 1994 | 60°F | 46°F | 0.97" | 0" |
| 1993 | 58°F | 52°F | 0.48" | 0" |
| 1992 | 55°F | 49°F | 0.86" | 0" |
| 1991 | 60°F | 44°F | 0.3" | 0" |
| 1990 | 67°F | 43°F | 0" | 0" |
| 1989 | 67°F | 49°F | 0" | 0" |
| 1988 | 54°F | 49°F | 2.03" | 0" |
| 1987 | 52°F | 49°F | 1.04" | 0" |
| 1986 | 53°F | 49°F | 2.01" | 0" |
| 1985 | 60°F | 48°F | 0.03" | 0" |
| 1984 | 53°F | 47°F | 0.56" | 0" |
| 1983 | 55°F | 50°F | 0.43" | 0" |
| 1982 | 56°F | 51°F | 0.69" | 0" |
| 1981 | 59°F | 47°F | 0.05" | 0" |
| 1980 | 52°F | 49°F | 0.79" | 0" |
| 1979 | 60°F | 47°F | 0" | 0" |
| 1978 | 57°F | 49°F | 0.08" | 0" |
| 1977 | 65°F | 40°F | 0" | 0" |
| 1976 | 58°F | 46°F | 0.2" | 0" |
| 1975 | 55°F | 41°F | 0.66" | 0" |
| 1974 | 73°F | 42°F | 0" | 0" |
| 1973 | 58°F | 34°F | 0.69" | 0" |
| 1972 | 57°F | 50°F | 0.86" | 0" |
| 1971 | 54°F | 47°F | 0.76" | 0" |