Weather on June 21 at Acadia
Acadia National Park
MENortheast500 ft elevation
Avg High77°F
Avg Low55°F
Warmest201276°F
Coldest201556°F
Based on 54 years of data from Bar Harbor, ME
Planning Your Visit
June 21st in Acadia National Park (via Bar Harbor, ME) typically brings pleasant summer weather, with average highs around 77°F and lows near 55°F. Over 54 years of records, the warmest June 21st was in 2012 (76°F average), while the coldest was 2015 (56°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 28% of June 21st dates historically, with the wettest June 21st recording 2.03" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for June 21st in Acadia? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 82°F | 54°F | -- | -- |
| 2024 | 82°F | 66°F | -- | -- |
| 2023 | 75°F | 52°F | -- | -- |
| 2022 | 70°F | 48°F | -- | -- |
| 2021 | 80°F | 63°F | -- | -- |
| 2020 | 68°F | 56°F | -- | -- |
| 2019 | 63°F | 52°F | -- | -- |
| 2018 | 76°F | 56°F | -- | -- |
| 2017 | 79°F | 57°F | -- | -- |
| 2016 | 81°F | 56°F | -- | -- |
| 2015 | 59°F | 53°F | -- | -- |
| 2014 | 73°F | 48°F | -- | -- |
| 2013 | 78°F | 57°F | 0" | -- |
| 2012 | 90°F | 62°F | 0.38" | -- |
| 2011 | 78°F | 58°F | 0" | -- |
| 2010 | 84°F | 62°F | 0.05" | 0" |
| 2009 | 64°F | 55°F | 1.17" | 0" |
| 2008 | 74°F | 54°F | 0" | 0" |
| 2007 | 77°F | 57°F | 2.03" | 0" |
| 2006 | 78°F | 59°F | 0" | 0" |
| 2005 | 77°F | 51°F | 0" | 0" |
| 2004 | 75°F | 51°F | 0" | 0" |
| 2003 | 78°F | 62°F | 0" | 0" |
| 2002 | 81°F | 57°F | 0" | 0" |
| 2000 | 80°F | 57°F | 0" | 0" |
| 1999 | 80°F | 55°F | 0" | 0" |
| 1998 | 77°F | 53°F | 0" | 0" |
| 1997 | 78°F | 58°F | 0" | 0" |
| 1996 | 75°F | 48°F | 0.46" | 0" |
| 1995 | 78°F | 47°F | 0" | 0" |
| 1994 | 80°F | 60°F | 0" | 0" |
| 1993 | 81°F | 53°F | 0.3" | 0" |
| 1992 | 64°F | 54°F | 0.05" | 0" |
| 1991 | 86°F | 58°F | 0" | 0" |
| 1990 | 66°F | 54°F | 1.75" | 0" |
| 1989 | 87°F | 59°F | 0" | 0" |
| 1988 | 83°F | 58°F | 0" | 0" |
| 1987 | 79°F | 51°F | 0" | 0" |
| 1986 | 73°F | 45°F | 0" | 0" |
| 1985 | 74°F | 54°F | 0" | 0" |
| 1984 | 76°F | 48°F | 0" | 0" |
| 1983 | 86°F | 59°F | 0" | 0" |
| 1982 | 72°F | 50°F | 0" | 0" |
| 1981 | 72°F | -- | 0.66" | 0" |
| 1980 | 71°F | 50°F | 1.24" | 0" |
| 1979 | 75°F | 46°F | 0" | 0" |
| 1978 | 67°F | 51°F | 0.23" | 0" |
| 1977 | 76°F | 48°F | 1.19" | 0" |
| 1976 | 84°F | 62°F | 0.15" | 0" |
| 1975 | 82°F | 52°F | 0" | 0" |
| 1974 | 77°F | 55°F | 0.03" | 0" |
| 1973 | 81°F | 57°F | 0" | 0" |
| 1972 | 74°F | 55°F | 0.13" | 0" |
| 1971 | 80°F | 59°F | 0" | 0" |
June 21 at Nearby Parks
Holiday Weather at Acadia
Official NPS WebsiteVisit nps.gov/acad for park information, alerts, and reservations
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