Acadia National Park - Weather (U.S. National Park Service)

Acadia's weather is largely a product of latitude and marine influences. On a daily and annual basis, Mount Desert Island temperatures are more moderate than those of inland Maine. The Maine coastal climate has been ranked second only to the Pacific Northwest in annual precipitation. This moisture occurs in every form at Acadia. Ice storms are regular in winter and early spring, and rain is frequent in every month. Fog is common during June, July, and August.

Waves pound the coastline while a car sits on the road in rainy weather.

NPS/Sheridan Steele

Storms called nor'easters can bring pounding surf and heavy rains to Acadia during the winter and early spring.

Average Temperatures and Precipitation

	Jan	Feb	Mar	Apr	May	June	July	Aug	Sept	Oct	Nov	Dec
Average Day Temperature in Fahrenheit	32	33	41	52	64	72	77	76	68	58	48	37
Average night temperature in Fahrenheit	14	15	25	33	42	51	57	56	49	41	33	19
Average rainfall in inches	4	4	4	4	4	3	3	3	4	4	6	5
Average snowfall in inches	16	17	11	3	Trace	0	0	0	0	Trace	2	12

Average annual rainfall: 53 inches (average from 1982-2005)
Average annual snowfall: 61 inches (average from 1940-1985)

Spring can be foggy with temperatures ranging between 30 and 70 degrees F. Wear light-colored clothing, long sleeve shirts, and long pants for protection. Annual rainfall is 48 inches.

Summer daytime temperatures range from 45 to 90 degrees F. Evenings are cooler. Dressing in layers is advisable for any boating or hiking activities. Ocean water temperatures range from 50 to 60 degrees F. Lake water temperatures range from 55 to 70 degrees F.

Fall temperatures can range from low 70s during the day to freezing during the night. Come prepared for all types of weather, from sun to fog, from downpours to flurries. Fall foliage often peaks during the first few weeks in October; the peak time is generally mid-October. Weather conditions over the summer, such as drought, may alter the time that the leaves peak. Visit the park's leaf-peeping page or the state of Maine's fall foliage website for more information.

In the winter, due to Acadia's coastal location, snow and weather conditions change rapidly. Temperatures vary from mid-30s to below zero. The park averages 61 inches of snow annually. For the latest in weather information, call the local weather phone line at 207-667-8910 or call the park at 207-288-3338.

Weather Links
National Weather Service
Real-Time Air Quality Web Cams and Weather Data (includes ozone levels, temperature, wind speed and direction, precipitation, and more)

McFarland Hill site (National Park Service)
Schoodic Peninsula site (Northeast States for Coordinated Air Use Management)

Ozone Information
Maine Department of Environmental Protection
Air Quality Hotline - 800-223-1196