Bar Harbor ME Average Temperatures by Month

The numbers here tell you how hot and cold the weather usually is at Bar Harbor and Acadia National Park in Maine during each month of the year.

The average high and low temperatures are listed below monthly and annually for the area, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 60, 70 or 80 °F each month in Bar Harbor, scroll down farther. There are also monthly and yearly counts of days with cold weather.

The first set of high and low temperatures are averages for 2004 to 2013. Everything else here is based on 1981 to 2010 weather.

10-year temperature averages for Bar Harbor, 2004 to 2013
High °F	Low °F		High °C	Low °C
33	15	January	1	-10
35	18	February	2	-8
43	26	March	6	-3
54	36	April	12	2
64	45	May	18	7
73	54	June	23	12
79	61	July	26	16
77	60	August	25	16
70	53	September	21	12
59	44	October	15	6
49	34	November	9	1
38	22	December	3	-6
56	39	Year	13	4

30-year temperature averages for Bar Harbor, 1981 to 2010
High °F	Low °F		High °C	Low °C
31	14	January	0	-10
35	17	February	2	-8
42	25	March	5	-4
53	35	April	12	2
65	45	May	18	7
74	54	June	23	12
79	59	July	26	15
78	59	August	26	15
71	52	September	21	11
59	42	October	15	6
48	33	November	9	1
37	21	December	3	-6
56	38	Year	13	3

Days of Hot Weather in Bar Harbor

Bar Harbor and Acadia Park enjoy moderately hot summers with daily temperatures peaking in the 70s or 80s Fahrenheit. Only two days a year on average make it into the 90s (above 32 °C), and none reach 100 (38 °C). The 90-degree weather can show up anytime from June to September.

Number of days in Bar Harbor of at least 60, 70 or 80 °F
	60 °F 16 °C	70 °F 21 °C	80 °F 27 °C
January	0	0	0
February	0	0	0
March	1	0	0
April	6	1	0
May	22	9	2
June	29	22	7
July	31	29	14
August	31	29	13
September	29	15	3
October	13	3	0
November	2	0	0
December	0	0	0
Year	162	107	38

How Often Bar Harbor Has Cold Temperatures

Winters at the Mount Desert Island community do get chilly, with most nights from December to March seeing temperatures below freezing. Typically, eight of those a year drop down to 0 °F (-18 °C) or below.

For an average of 40 days annually the thermometer here never rises above freezing. Days that chilly can occur from November to April, including about half of January.

Days per month on average in Bar Harbor when the minimum temperature drops to 32, 20 or 10 °F or below
	10 °F -12 °C	20 °F -8 °C	32 °F 0 °C
January	12	21	29
February	8	17	25
March	3	9	24
April	0	0	9
May	0	0	1
June	0	0	0
July	0	0	0
August	0	0	0
September	0	0	0
October	0	0	3
November	0	2	14
December	5	14	25
Year	28	63	130

Bar Harbor and Acadia National Park Temperatures: Averages by Month

Days of Hot Weather in Bar Harbor

How Often Bar Harbor Has Cold Temperatures

References

More on Weather in Maine