Weather on March 18 at Acadia
Acadia National Park
MENortheast500 ft elevation
Avg High42°F
Avg Low24°F
Warmest202255°F
Coldest200017°F
Based on 56 years of data from Bar Harbor, ME
Planning Your Visit
March 18th in Acadia National Park (via Bar Harbor, ME) typically brings chilly spring weather, with average highs around 42°F and lows near 24°F. Over 56 years of records, the warmest March 18th was in 2022 (55°F average), while the coldest was 2000 (17°F) — a 38°F range across recorded history. Precipitation has occurred on 29% of recorded March 18th dates, with snow falling 9% of the time (heaviest snowfall: 2"). The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.6°F warmer on this date compared to 20-30 years ago.
Planning for March 18th in Acadia? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 32°F | 14°F | -- | -- |
| 2025 | 43°F | 31°F | -- | -- |
| 2024 | 47°F | 30°F | -- | -- |
| 2023 | 44°F | 33°F | -- | -- |
| 2022 | 66°F | 44°F | -- | -- |
| 2021 | 42°F | 32°F | -- | -- |
| 2020 | 46°F | 28°F | -- | -- |
| 2019 | 36°F | 16°F | -- | -- |
| 2018 | 32°F | 7°F | -- | -- |
| 2017 | 36°F | 19°F | -- | -- |
| 2016 | 47°F | 24°F | -- | -- |
| 2015 | 28°F | 11°F | -- | -- |
| 2014 | 33°F | 10°F | 0" | -- |
| 2013 | 33°F | 10°F | 0" | -- |
| 2012 | 58°F | 37°F | 0" | -- |
| 2011 | 55°F | 39°F | 0.08" | -- |
| 2010 | 60°F | 41°F | 0" | 0" |
| 2009 | 44°F | 24°F | 0" | 0" |
| 2008 | 41°F | 19°F | 0" | 0" |
| 2007 | 46°F | 25°F | 2.03" | 0" |
| 2006 | 36°F | 15°F | 0" | 0" |
| 2005 | 43°F | 24°F | 0" | 0" |
| 2004 | 28°F | 11°F | 0" | -- |
| 2003 | 43°F | 32°F | 0" | 0" |
| 2002 | 40°F | 19°F | 0" | 0" |
| 2001 | 47°F | 28°F | 0" | 0" |
| 2000 | 26°F | 9°F | 0.05" | 2" |
| 1999 | 48°F | 32°F | 0.03" | 0" |
| 1998 | 47°F | 21°F | 0" | 0" |
| 1997 | 34°F | 8°F | 0" | 0" |
| 1996 | 49°F | 22°F | 0" | 0" |
| 1995 | 41°F | 30°F | 2.03" | -- |
| 1994 | 41°F | 18°F | 0" | 0" |
| 1993 | 42°F | 4°F | 2.11" | 2" |
| 1992 | 36°F | 12°F | 0.03" | 0.5" |
| 1991 | 49°F | 29°F | 0" | 0" |
| 1990 | 54°F | 40°F | 1.4" | 0" |
| 1989 | 44°F | 29°F | 0" | 0" |
| 1988 | 48°F | 24°F | 0" | 0" |
| 1987 | 30°F | 23°F | 0.28" | 2" |
| 1986 | 45°F | 30°F | 0" | 0" |
| 1985 | 44°F | 16°F | 1.37" | 2" |
| 1984 | 39°F | 22°F | 0.3" | 0" |
| 1983 | 42°F | 30°F | 0" | 0" |
| 1982 | 48°F | 30°F | 0" | 0" |
| 1981 | 27°F | -- | 0.18" | 0" |
| 1980 | 47°F | 36°F | 8.1" | 0" |
| 1979 | 37°F | 11°F | 0.2" | 0" |
| 1978 | 43°F | 22°F | 0" | 0" |
| 1977 | 37°F | 25°F | 0" | 0" |
| 1976 | 27°F | 11°F | 0" | 0" |
| 1975 | 49°F | 27°F | 0" | 0" |
| 1974 | 42°F | 26°F | 0" | 0" |
| 1973 | 48°F | 34°F | 2.97" | 0" |
| 1972 | 49°F | 37°F | 3.3" | 0" |
| 1971 | 44°F | 24°F | 0" | 0" |
March 18 at Nearby Parks
Holiday Weather at Acadia
Official NPS WebsiteVisit nps.gov/acad for park information, alerts, and reservations
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