Weather on September 17 at Acadia
Acadia National Park
Based on 53 years of data from Bar Harbor, ME
Planning Your Visit
September 17th in Acadia National Park (via Bar Harbor, ME) typically brings pleasant fall weather, with average highs around 70°F and lows near 50°F. Over 53 years of records, the warmest September 17th was in 2015 (74°F average), while the coldest was 2009 (48°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 23% of September 17th dates historically, with the wettest September 17th recording 6.12" of rain. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
Planning for September 17th in Acadia? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 76°F | 57°F | -- | -- |
| 2024 | 86°F | 59°F | -- | -- |
| 2023 | 77°F | 56°F | -- | -- |
| 2022 | 67°F | 45°F | -- | -- |
| 2021 | 73°F | 54°F | -- | -- |
| 2020 | 72°F | 57°F | -- | -- |
| 2019 | 62°F | 48°F | -- | -- |
| 2018 | 77°F | 61°F | -- | -- |
| 2017 | 78°F | 56°F | -- | -- |
| 2016 | 70°F | 56°F | -- | -- |
| 2015 | 85°F | 64°F | -- | -- |
| 2014 | 69°F | 48°F | -- | -- |
| 2013 | 63°F | 39°F | -- | -- |
| 2012 | 67°F | 46°F | 0" | -- |
| 2011 | 66°F | 40°F | 0" | -- |
| 2010 | 63°F | 51°F | 3.18" | 0" |
| 2009 | 57°F | 39°F | 0" | 0" |
| 2008 | 68°F | 47°F | 0" | 0" |
| 2007 | 63°F | 41°F | 0" | 0" |
| 2006 | 78°F | 60°F | 0" | 0" |
| 2005 | 67°F | 57°F | 0" | 0" |
| 2004 | 71°F | 60°F | 0" | 0" |
| 2003 | 75°F | 56°F | 0.28" | 0" |
| 2002 | 67°F | 48°F | 0" | 0" |
| 2001 | 76°F | 50°F | 0" | 0" |
| 1999 | 68°F | 55°F | 6.12" | 0" |
| 1997 | 75°F | 42°F | 0" | 0" |
| 1996 | 62°F | 48°F | 0.03" | 0" |
| 1995 | 65°F | 47°F | 0" | 0" |
| 1994 | 75°F | 57°F | 0" | 0" |
| 1993 | 65°F | 46°F | 0" | 0" |
| 1992 | 81°F | 59°F | 0" | 0" |
| 1991 | 81°F | 66°F | 0" | 0" |
| 1990 | 64°F | 40°F | 0" | 0" |
| 1989 | 69°F | 53°F | 1.65" | 0" |
| 1988 | 67°F | 44°F | 0" | 0" |
| 1987 | 73°F | 51°F | 0.05" | 0" |
| 1986 | 61°F | 40°F | 0" | 0" |
| 1985 | 73°F | 47°F | 0" | 0" |
| 1984 | 65°F | 38°F | 0" | 0" |
| 1983 | 64°F | 46°F | 0.51" | 0" |
| 1982 | 68°F | 52°F | 0.08" | 0" |
| 1981 | 66°F | 47°F | 0" | 0" |
| 1980 | 67°F | 47°F | 0" | 0" |
| 1979 | 70°F | 48°F | 0" | 0" |
| 1978 | 69°F | 44°F | 0.08" | 0" |
| 1977 | 62°F | 53°F | 4.98" | 0" |
| 1976 | 67°F | 54°F | 0" | 0" |
| 1975 | 60°F | 46°F | 0.51" | 0" |
| 1974 | 66°F | 46°F | 0" | 0" |
| 1973 | 69°F | 43°F | 0" | 0" |
| 1972 | 74°F | 53°F | 0" | 0" |
| 1971 | 74°F | 57°F | 0.71" | 0" |