Maine weather by month

Check out Maine weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum daytime temperature °C
-2°C maximum daytime temperature in January in Augusta-2
-0°C maximum daytime temperature in February in Augusta-0
5°C maximum daytime temperature in March in Augusta5
12°C maximum daytime temperature in April in Augusta12
19°C maximum daytime temperature in May in Augusta19
23°C maximum daytime temperature in June in Augusta23
26°C maximum daytime temperature in July in Augusta26
25°C maximum daytime temperature in August in Augusta25
21°C maximum daytime temperature in September in Augusta21
15°C maximum daytime temperature in October in Augusta15
8°C maximum daytime temperature in November in Augusta8
0°C maximum daytime temperature in December in Augusta0
Hours of sunshine (daily)
Days with some rainfall
11 days with some rainfall in January in Augusta11
10 days with some rainfall in February in Augusta10
12 days with some rainfall in March in Augusta12
12 days with some rainfall in April in Augusta12
12 days with some rainfall in May in Augusta12
12 days with some rainfall in June in Augusta12
11 days with some rainfall in July in Augusta11
11 days with some rainfall in August in Augusta11
10 days with some rainfall in September in Augusta10
11 days with some rainfall in October in Augusta11
13 days with some rainfall in November in Augusta13
13 days with some rainfall in December in Augusta13

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Maine by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Maine (Augusta) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Maine temperature by month

Compare the average temperature by month for popular destinations in Maine. Select a place from below to see more long term weather averages by month.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Bangor
-3°C maximum daytime temperature in January in Bangor-3
-1°C maximum daytime temperature in February in Bangor-1
4°C maximum daytime temperature in March in Bangor4
11°C maximum daytime temperature in April in Bangor11
18°C maximum daytime temperature in May in Bangor18
23°C maximum daytime temperature in June in Bangor23
26°C maximum daytime temperature in July in Bangor26
25°C maximum daytime temperature in August in Bangor25
20°C maximum daytime temperature in September in Bangor20
13°C maximum daytime temperature in October in Bangor13
7°C maximum daytime temperature in November in Bangor7
0°C maximum daytime temperature in December in Bangor0
Bar Harbor
-2°C maximum daytime temperature in January in Bar Harbor-2
-1°C maximum daytime temperature in February in Bar Harbor-1
5°C maximum daytime temperature in March in Bar Harbor5
11°C maximum daytime temperature in April in Bar Harbor11
18°C maximum daytime temperature in May in Bar Harbor18
23°C maximum daytime temperature in June in Bar Harbor23
26°C maximum daytime temperature in July in Bar Harbor26
25°C maximum daytime temperature in August in Bar Harbor25
20°C maximum daytime temperature in September in Bar Harbor20
15°C maximum daytime temperature in October in Bar Harbor15
8°C maximum daytime temperature in November in Bar Harbor8
1°C maximum daytime temperature in December in Bar Harbor1
Portland
0°C maximum daytime temperature in January in Portland0
1°C maximum daytime temperature in February in Portland1
6°C maximum daytime temperature in March in Portland6
12°C maximum daytime temperature in April in Portland12
18°C maximum daytime temperature in May in Portland18
23°C maximum daytime temperature in June in Portland23
26°C maximum daytime temperature in July in Portland26
25°C maximum daytime temperature in August in Portland25
21°C maximum daytime temperature in September in Portland21
15°C maximum daytime temperature in October in Portland15
9°C maximum daytime temperature in November in Portland9
2°C maximum daytime temperature in December in Portland2
Rockland
-1°C maximum daytime temperature in January in Rockland-1
0°C maximum daytime temperature in February in Rockland0
5°C maximum daytime temperature in March in Rockland5
11°C maximum daytime temperature in April in Rockland11
18°C maximum daytime temperature in May in Rockland18
23°C maximum daytime temperature in June in Rockland23
26°C maximum daytime temperature in July in Rockland26
25°C maximum daytime temperature in August in Rockland25
21°C maximum daytime temperature in September in Rockland21
15°C maximum daytime temperature in October in Rockland15
8°C maximum daytime temperature in November in Rockland8
1°C maximum daytime temperature in December in Rockland1

All Maine destinations

Maine weather averages by month

Temperature in Maine (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
-2°C maximum daytime temperature in January in Maine (Augusta)-2
0°C maximum daytime temperature in February in Maine (Augusta)0
5°C maximum daytime temperature in March in Maine (Augusta)5
12°C maximum daytime temperature in April in Maine (Augusta)12
19°C maximum daytime temperature in May in Maine (Augusta)19
23°C maximum daytime temperature in June in Maine (Augusta)23
26°C maximum daytime temperature in July in Maine (Augusta)26
25°C maximum daytime temperature in August in Maine (Augusta)25
21°C maximum daytime temperature in September in Maine (Augusta)21
15°C maximum daytime temperature in October in Maine (Augusta)15
8°C maximum daytime temperature in November in Maine (Augusta)8
0°C maximum daytime temperature in December in Maine (Augusta)0
Min temperature (night-time)
-13°C minimum night-time temperature in January in Maine (Augusta)-13
-12°C minimum night-time temperature in February in Maine (Augusta)-12
-6°C minimum night-time temperature in March in Maine (Augusta)-6
0°C minimum night-time temperature in April in Maine (Augusta)0
6°C minimum night-time temperature in May in Maine (Augusta)6
11°C minimum night-time temperature in June in Maine (Augusta)11
15°C minimum night-time temperature in July in Maine (Augusta)15
14°C minimum night-time temperature in August in Maine (Augusta)14
9°C minimum night-time temperature in September in Maine (Augusta)9
3°C minimum night-time temperature in October in Maine (Augusta)3
-1°C minimum night-time temperature in November in Maine (Augusta)-1
-9°C minimum night-time temperature in December in Maine (Augusta)-9
Heat & Humidity
No heat & humidity in January in Maine (Augusta)0
No heat & humidity in February in Maine (Augusta)0
No heat & humidity in March in Maine (Augusta)0
No heat & humidity in April in Maine (Augusta)0
No heat & humidity in May in Maine (Augusta)0
No heat & humidity in June in Maine (Augusta)0
Low heat & humidity in July in Maine (Augusta)L
Low heat & humidity in August in Maine (Augusta)L
No heat & humidity in September in Maine (Augusta)0
No heat & humidity in October in Maine (Augusta)0
No heat & humidity in November in Maine (Augusta)0
No heat & humidity in December in Maine (Augusta)0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Maine

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
9 hours of daylight per day in January in Maine (Augusta)9
10 hours of daylight per day in February in Maine (Augusta)10
12 hours of daylight per day in March in Maine (Augusta)12
14 hours of daylight per day in April in Maine (Augusta)14
15 hours of daylight per day in May in Maine (Augusta)15
15 hours of daylight per day in June in Maine (Augusta)15
15 hours of daylight per day in July in Maine (Augusta)15
14 hours of daylight per day in August in Maine (Augusta)14
12 hours of daylight per day in September in Maine (Augusta)12
11 hours of daylight per day in October in Maine (Augusta)11
10 hours of daylight per day in November in Maine (Augusta)10
9 hours of daylight per day in December in Maine (Augusta)9
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Maine (Augusta)1
UV (maximum) index 2 (Low) in February in Maine (Augusta)2
UV (maximum) index 3 (Moderate) in March in Maine (Augusta)3
UV (maximum) index 5 (Moderate) in April in Maine (Augusta)5
UV (maximum) index 6 (High) in May in Maine (Augusta)6
UV (maximum) index 8 (Very High) in June in Maine (Augusta)8
UV (maximum) index 8 (Very High) in July in Maine (Augusta)8
UV (maximum) index 7 (High) in August in Maine (Augusta)7
UV (maximum) index 5 (Moderate) in September in Maine (Augusta)5
UV (maximum) index 3 (Moderate) in October in Maine (Augusta)3
UV (maximum) index 2 (Low) in November in Maine (Augusta)2
UV (maximum) index 1 (Low) in December in Maine (Augusta)1

Rainfall in Maine

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
11 days with some rainfall in January in Maine (Augusta)11
10 days with some rainfall in February in Maine (Augusta)10
12 days with some rainfall in March in Maine (Augusta)12
12 days with some rainfall in April in Maine (Augusta)12
12 days with some rainfall in May in Maine (Augusta)12
12 days with some rainfall in June in Maine (Augusta)12
11 days with some rainfall in July in Maine (Augusta)11
11 days with some rainfall in August in Maine (Augusta)11
10 days with some rainfall in September in Maine (Augusta)10
11 days with some rainfall in October in Maine (Augusta)11
13 days with some rainfall in November in Maine (Augusta)13
13 days with some rainfall in December in Maine (Augusta)13
Average monthly rainfall (mm)
83 mm monthly rainfall in January in Maine (Augusta)83
78 mm monthly rainfall in February in Maine (Augusta)78
91 mm monthly rainfall in March in Maine (Augusta)91
99 mm monthly rainfall in April in Maine (Augusta)99
93 mm monthly rainfall in May in Maine (Augusta)93
87 mm monthly rainfall in June in Maine (Augusta)87
80 mm monthly rainfall in July in Maine (Augusta)80
84 mm monthly rainfall in August in Maine (Augusta)84
81 mm monthly rainfall in September in Maine (Augusta)81
96 mm monthly rainfall in October in Maine (Augusta)96
120 mm monthly rainfall in November in Maine (Augusta)120
106 mm monthly rainfall in December in Maine (Augusta)106

Tropical storm risk: Maine hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
<1%
1.4%
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Compare Maine weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Maine, USA (Augusta) and the UK (London).

Maximum daytime temperature (°C)

Maine, USA (Augusta)
UK (London)
7
0
7
5
10
12
13
19
17
23
20
26
22
25
22
21
19
15
15
8
10
0
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
-2

Metric (°C / mm)  |  Imperial (°F / inches)

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