Climate and monthly weather forecastWinter Harbor, ME
Climate and monthly weather forecast
Weather in January
January, the same as December, in Winter Harbor, Maine, is a freezing cold winter month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 18.5°F (-7.5°C). In Winter Harbor, the lowest temperatures are generally noted in January, averaging a high of 29.7°F (-1.3°C) and a low of 18.5°F (-7.5°C). Weather in January »Weather in February
February, the last month of the winter in Winter Harbor, is also a subzero cold month, with an average temperature varying between 30.7°F (-0.7°C) and 18.9°F (-7.3°C). With the onset of February, the average high-temperature registers at a still freezing cold 30.7°F (-0.7°C), subtly different from January's 29.7°F (-1.3°C). Weather in February »Weather in March
March, the first month of the spring in Winter Harbor, is a cold month, with an average temperature varying between 37.2°F (2.9°C) and 25.9°F (-3.4°C). With the onset of March, Winter Harbor's average high-temperature sees a modest rise, moving from February's freezing cold 30.7°F (-0.7°C) to an icy 37.2°F (2.9°C). Weather in March »Weather in April
April is a chilly spring month in Winter Harbor, Maine, with an average temperature ranging between max 48.6°F (9.2°C) and min 35.6°F (2°C). As Winter Harbor welcomes April, the average high-temperature sees a rise, transitioning from a cold 37.2°F (2.9°C) in March to a chilly 48.6°F (9.2°C). Weather in April »Weather in May
May, the last month of the spring in Winter Harbor, is a refreshing month, with an average temperature varying between 44.2°F (6.8°C) and 58.6°F (14.8°C). The beginning of May signals a rise in the average high-temperature, moving from a chilly 48.6°F (9.2°C) in April to a moderate 58.6°F (14.8°C). Weather in May »Weather in June
June, the first month of the summer in Winter Harbor, is a refreshing month, with an average temperature varying between 66°F (18.9°C) and 51.4°F (10.8°C). The start of June signals a slight increase in the average high-temperature, moving from a refreshing 58.6°F (14.8°C) in May to an enjoyable 66°F (18.9°C). Weather in June »Weather in July
July in Winter Harbor, Maine, is an agreeable summer month, with temperature in the range of an average low of 58.1°F (14.5°C) and an average high of 73.2°F (22.9°C). July signifies a subtle uplift in the average high-temperature, adjusting from a comfortable 66°F (18.9°C) in June to a pleasant 73.2°F (22.9°C). Weather in July »Weather in August
August, the last month of the summer in Winter Harbor, is a warm month, with an average temperature ranging between max 73.4°F (23°C) and min 57.7°F (14.3°C). With an average high-temperature of 73.4°F (23°C) and an average low-temperature of 57.7°F (14.3°C), August is the warmest month. Weather in August »Weather in September
September, the first month of the autumn in Winter Harbor, is still a refreshing month, with temperature in the range of an average high of 67.1°F (19.5°C) and an average low of 52.7°F (11.5°C). During the shift to September, Winter Harbor records a mild decrease in average high-temperature, moving from a warm 73.4°F (23°C) in August to a refreshing 67.1°F (19.5°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Winter Harbor, Maine, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 45°F (7.2°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a refreshing 67.1°F (19.5°C) in September to a moderate 55.9°F (13.3°C). Weather in October »Weather in November
November, the last month of the autumn in Winter Harbor, is another chilly month, with an average temperature ranging between max 44.8°F (7.1°C) and min 34.7°F (1.5°C). Onset of November witnesses a reduction in the average high-temperature, falling from a mild 55.9°F (13.3°C) in October to a chilly 44.8°F (7.1°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Winter Harbor, Maine, with temperature in the range of an average high of 35.1°F (1.7°C) and an average low of 25.7°F (-3.5°C). The commencement of December involves a temperature shift, with the average high-temperature dropping from a frosty 44.8°F (7.1°C) in November to a cold 35.1°F (1.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Winter Harbor, ME
The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure
Winter Harbor, ME
- Average pressure in January:
29.95"Hg - Average pressure in February:
29.94"Hg - Average pressure in March:
30"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.02"Hg - Average pressure in December:
29.99"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Winter Harbor, ME
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.3mph - Average wind speed in April:
9.2mph - Average wind speed in May:
7.6mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.5mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity
Winter Harbor, ME
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall
Winter Harbor, ME
- Average rainfall in January:
3.19" - Average rainfall in February:
2.52" - Average rainfall in March:
2.44" - Average rainfall in April:
3.5" - Average rainfall in May:
2.28" - Average rainfall in June:
2.6"
- Average rainfall in July:
1.57" - Average rainfall in August:
1.73" - Average rainfall in September:
1.81" - Average rainfall in October:
3.35" - Average rainfall in November:
3.35" - Average rainfall in December:
3.94"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (1.57").
Average rainfall days
Winter Harbor, ME
- Average rainfall days in January:
8.1 days - Average rainfall days in February:
7.5 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
13 days - Average rainfall days in August:
10.4 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
14 days - Average rainfall days in November:
11.7 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is February (7.5 days).
Average snowfall
Winter Harbor, ME
- Average snowfall in January:
5.31" - Average snowfall in February:
5.75" - Average snowfall in March:
4.13" - Average snowfall in April:
2.44" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Winter Harbor, ME
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
11.4 days - Average snowfall days in March:
9.4 days - Average snowfall days in April:
3.1 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
4.1 days - Average snowfall days in December:
7.9 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Winter Harbor, ME
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
4h and 30min - Average sunshine in February:
4h and 6min - Average sunshine in March:
5h and 12min - Average sunshine in April:
7h and 12min - Average sunshine in May:
7h and 48min - Average sunshine in June:
8h and 36min
- Average sunshine in July:
9h and 36min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 12min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days
Winter Harbor, ME
- Average sunshine days in January:
14.4 days - Average sunshine days in February:
12.4 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
11.2 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
16.6 days - Average sunshine days in August:
18.7 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
15.7 days - Average sunshine days in December:
14.1 days
The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is April (11.2 days).
Average UV index
Winter Harbor, ME
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Winter Harbor, ME
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility
Winter Harbor, ME
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





