Climate and monthly weather forecast
Stonington, ME

Weather in January

January, like December, is a freezing cold winter month in Stonington, Maine, with temperature in the range of an average high of 31.5°F (-0.3°C) and an average low of 21°F (-6.1°C). The coldest month is January, with an average high-temperature of 31.5°F (-0.3°C) and an average low-temperature of 21°F (-6.1°C). Weather in January »

Weather in February

February, the last month of the winter, in Stonington, is a cold month, with average temperature ranging between min 22.1°F (-5.5°C) and max 32.4°F (0.2°C). In February, the average high-temperature is essentially the same as in January - a cold 32.4°F (0.2°C). Weather in February »

Weather in March

March, the first month of the spring, in Stonington, is still a cold month, with average temperature fluctuating between 27.9°F (-2.3°C) and 37°F (2.8°C). In Stonington, the average high-temperature in March is essentially the same as in February - a still wintry 37°F (2.8°C). Weather in March »

Weather in April

April in Stonington, Maine, is a chilly spring month, with average temperature varying between 46°F (7.8°C) and 37.2°F (2.9°C). In April, the average high-temperature rises, from a cold 37°F (2.8°C) in March, to a chilly 46°F (7.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a cool month in Stonington, Maine, with average temperature ranging between min 45.5°F (7.5°C) and max 55°F (12.8°C). In Stonington, the average high-temperature in May increases, from a chilly 46°F (7.8°C) in April, to a cool 55°F (12.8°C). Weather in May »

Weather in June

The first month of the summer, June, is an enjoyable month in Stonington, Maine, with average temperature fluctuating between 53.1°F (11.7°C) and 62.2°F (16.8°C). In June, the average high-temperature slightly increases, from a cool 55°F (12.8°C) in May, to an enjoyable 62.2°F (16.8°C). Weather in June »

Weather in July

July in Stonington, Maine, is a pleasant summer month, with average temperature varying between 59.5°F (15.3°C) and 68.7°F (20.4°C). In July, the average high-temperature slightly increases, from an enjoyable 62.2°F (16.8°C) in June, to an agreeable 68.7°F (20.4°C). Weather in July »

Weather in August

August, the last month of the summer, in Stonington, is also an agreeable month, with average temperature varying between 68.9°F (20.5°C) and 59.9°F (15.5°C). The warmest month is August, with an average high-temperature of 68.9°F (20.5°C) and an average low-temperature of 59.9°F (15.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Stonington, Maine, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 63.9°F (17.7°C). In Stonington, the average high-temperature in September is essentially the same as in August - an enjoyable 63.9°F (17.7°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Stonington, Maine, with average temperature varying between 54.9°F (12.7°C) and 47.1°F (8.4°C). In October, the average high-temperature drops, from a comfortable 63.9°F (17.7°C) in September, to a fresh 54.9°F (12.7°C). Weather in October »

Weather in November

November, the last month of the autumn, in Stonington, is also a frosty month, with average temperature ranging between min 37.4°F (3°C) and max 45.3°F (7.4°C). In Stonington, the average high-temperature drops, from a fresh 54.9°F (12.7°C) in October, to a frosty 45.3°F (7.4°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Stonington, Maine, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 36.7°F (2.6°C). In Stonington, the average high-temperature in December marginally drops, from a chilly 45.3°F (7.4°C) in November, to a wintry 36.7°F (2.6°C). Weather in December »
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FAQ

What is the coldest month in Stonington?

January is the coldest month, with an average high-temperature of 31.5°F (-0.3°C) and an average low-temperature of 21°F (-6.1°C).

How many days does it rain in Stonington?

In Stonington, during the entire year, the rain falls for 115.5 days and collects up to 17.95" (456mm) of precipitation.

When does it snow in Stonington?

Months with snowfall in Stonington, Maine, are January through April, October through December.

How much does it snow in Stonington?

Throughout the year, in Stonington, there are 29.2 snowfall days, and 9.65" (245mm) of snow is accumulated.

What are the months with the lowest UV index in Stonington?

Months with the lowest UV index in Stonington, Maine, are January through March, November and December, with an average maximum UV index of 2.

What is the snowiest month in Stonington?

The month with the most snowfall is February when snow falls for 6.6 days and typically aggregates up to 2.32" (59mm) of snow.

What is the month with the coldest ocean in Stonington?

With an average ocean temperature of 38.3°F (3.5°C), March is the month with the coldest seawater in Stonington.

When it does not snow in Stonington?

May through September are months without snowfall in Stonington.

When are the longest days in Stonington?

June has the longest days of the year, with an average of 15.5h of daylight.

What is the month with the highest UV index in Stonington?

June through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the most humid month in Stonington?

With an average relative humidity of 85%, July is the most humid month in Stonington.

What is the warmest month in Stonington?

August is the warmest month in Stonington, Maine, with an average high-temperature of 68.9°F (20.5°C) and an average low-temperature of 59.9°F (15.5°C).

What month is the ocean warmest in Stonington?

August is the month with the warmest seawater in Stonington, Maine, with an average ocean temperature of 58.6°F (14.8°C).

What month has the most sunshine in Stonington?

With an average of 10.4h of sunshine, August has the most sunshine of the year.

What is the driest month in Stonington?

The month with the least rainfall is September when the rain falls for 8.7 days and typically collects 0.91" (23mm) of precipitation.

What is the wettest month in Stonington?

The month with the most rainfall in Stonington, Maine, is October when the rain falls for 10.6 days and typically aggregates up to 2.09" (53mm) of precipitation.

What is the least humid month in Stonington?

The least humid month in Stonington is November, with an average relative humidity of 76%.

What is the month with the shortest days in Stonington?

The month with the shortest days in Stonington, Maine, is December, with an average of 8.9h of daylight.

What is the month with the least sunshine in Stonington?

December has the least sunshine of the year, with an average of 4.5h of sunshine.

Average temperature
Stonington, ME

Average temperature - Stonington, ME

The warmest month (with the highest average high temperature) is August (68.9°F).
The month with the lowest average high temperature is January (31.5°F).

The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure
Stonington, ME

Average pressure - Stonington, ME

The month with the highest atmospheric pressure is September (30.04").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed
Stonington, ME

Average wind speed - Stonington, ME

The windiest month (with the highest average wind speed) is January (14.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

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Average rainfall
Stonington, ME

Average rainfall - Stonington, ME

The wettest month (with the highest rainfall) is October (2.09").
The driest month (with the least rainfall) is September (0.91").

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Average rainfall days
Stonington, ME

Average rainfall days - Stonington, ME

The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall
Stonington, ME

Average snowfall - Stonington, ME

The month with the highest snowfall is February (2.32").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Stonington, ME

Average snowfall days - Stonington, ME

The month with the highest number of snowfall days is January (7.7 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average sea temperature
Stonington, ME

Average sea temperature - Stonington, ME

The best month for swimming (with the highest average sea temperature) is August (58.6°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).

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Average daylight / Average sunshine
Stonington, ME

Average daylight / Average sunshine - Stonington, ME

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

The month with the most sunshine is August (Average sunshine: 10.4h).
The month with the least sunshine is December (Average sunshine: 4.5h).

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Average sunshine days
Stonington, ME

Average sunshine days - Stonington, ME

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is July (15.4 days).

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Average UV index
Stonington, ME

Average UV index - Stonington, ME

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Stonington, ME

Average visibility - Stonington, ME

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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