Weather on March 21 at Acadia
Acadia National Park
Based on 54 years of data from Bar Harbor, ME
Planning Your Visit
March 21st in Acadia National Park (via Bar Harbor, ME) typically brings chilly spring weather, with average highs around 43°F and lows near 26°F. Over 54 years of records, the warmest March 21st was in 2012 (67°F average), while the coldest was 1988 (14°F) — a 53°F range across recorded history. Precipitation has occurred on 31% of recorded March 21st dates, with snow falling 13% of the time (heaviest snowfall: 11"). 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 March 21st in Acadia? 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 |
|---|---|---|---|---|
| 2026 | 39°F | 26°F | -- | -- |
| 2025 | 39°F | 32°F | -- | -- |
| 2024 | 35°F | 21°F | -- | -- |
| 2023 | 52°F | 34°F | -- | -- |
| 2022 | 50°F | 32°F | -- | -- |
| 2021 | 60°F | 36°F | -- | -- |
| 2020 | 44°F | 21°F | -- | -- |
| 2019 | 46°F | 34°F | -- | -- |
| 2018 | 39°F | 21°F | -- | -- |
| 2017 | 48°F | 27°F | -- | -- |
| 2016 | 30°F | 21°F | -- | -- |
| 2015 | 36°F | 28°F | -- | -- |
| 2014 | 45°F | 30°F | 0.03" | -- |
| 2013 | 38°F | 22°F | 0" | -- |
| 2012 | 80°F | 53°F | 0" | -- |
| 2011 | 42°F | 27°F | 0" | -- |
| 2010 | 68°F | 33°F | 0" | 0" |
| 2009 | 40°F | 19°F | -- | -- |
| 2008 | 35°F | 26°F | 0.58" | 0" |
| 2007 | 41°F | 13°F | 0" | 0" |
| 2006 | 41°F | 24°F | 0" | 0" |
| 2005 | 47°F | 28°F | 0" | 0" |
| 2004 | 40°F | 29°F | 1.09" | -- |
| 2003 | 48°F | 33°F | 2.79" | 0" |
| 2002 | 40°F | 31°F | 2.39" | 8" |
| 2001 | 53°F | 30°F | 0" | 0" |
| 2000 | 46°F | 25°F | 0" | 0" |
| 1999 | 46°F | 21°F | 0" | 0" |
| 1997 | 40°F | 18°F | 0.64" | 2" |
| 1996 | 45°F | 34°F | 1.09" | 0" |
| 1995 | 49°F | 33°F | 0" | 0" |
| 1994 | 44°F | 26°F | 0" | 0" |
| 1993 | 38°F | 27°F | 0.03" | 0" |
| 1992 | 35°F | 16°F | 0" | 0" |
| 1991 | 46°F | 20°F | 0" | 0" |
| 1989 | 35°F | 24°F | 1.57" | -- |
| 1988 | 27°F | 1°F | 0.05" | 0.3" |
| 1987 | 35°F | 30°F | 1.04" | 3" |
| 1986 | 37°F | 0°F | 0" | 0" |
| 1985 | 49°F | 9°F | 0.1" | 1" |
| 1984 | 38°F | 30°F | 0.08" | 0" |
| 1983 | 46°F | 29°F | 0.05" | 0" |
| 1982 | 41°F | 21°F | 2.29" | 11" |
| 1981 | 38°F | 32°F | 0" | 0" |
| 1980 | 40°F | 26°F | 0" | 0" |
| 1979 | 55°F | 35°F | 0" | 0" |
| 1978 | 42°F | 23°F | 0.48" | 0" |
| 1977 | 46°F | 30°F | 0" | 0" |
| 1976 | 55°F | 41°F | 0" | 0" |
| 1975 | 45°F | 30°F | 0" | 0" |
| 1974 | 36°F | 17°F | 0.38" | 1" |
| 1973 | 38°F | 28°F | 0" | 0" |
| 1972 | 38°F | 17°F | 0" | 0" |
| 1971 | 41°F | 27°F | 0" | 0" |