Climate and monthly weather forecast
Stonington, CT

The classy and nice riverside homes by the Mystic River in Stonington, Connecticut
The classy and nice riverside homes by the Mystic River in Stonington, Connecticut

Weather in January

January, the same as December, is another cold winter month in Stonington, Connecticut, with an average temperature ranging between max 36.5°F (2.5°C) and min 26.6°F (-3°C). With an average high-temperature of 36.5°F (2.5°C) and an average low-temperature of 26.6°F (-3°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Stonington, is another cold month, with an average temperature varying between 27.3°F (-2.6°C) and 38.1°F (3.4°C). In February, the average high-temperature is essentially the same as in January - a still cold 38.1°F (3.4°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Stonington, Connecticut, with an average temperature varying between 33.4°F (0.8°C) and 43.3°F (6.3°C). In March, the average high-temperature is practically the same as in February - a frosty 43.3°F (6.3°C). Weather in March »

Weather in April

April is a fresh spring month in Stonington, Connecticut, with an average temperature ranging between min 42.4°F (5.8°C) and max 52.5°F (11.4°C). In Stonington, the average high-temperature in April increases from a chilly 43.3°F (6.3°C) in March to a fresh 52.5°F (11.4°C). Weather in April »

Weather in May

May, the last month of the spring in Stonington, is a comfortable month, with an average temperature varying between 62.6°F (17°C) and 50.7°F (10.4°C). In Stonington, the average high-temperature in May rises from a fresh 52.5°F (11.4°C) in April to a comfortable 62.6°F (17°C). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in Stonington, Connecticut, with temperature in the range of an average high of 70.9°F (21.6°C) and an average low of 59.4°F (15.2°C). In June, the average high-temperature marginally rises from a comfortable 62.6°F (17°C) in May to a pleasant 70.9°F (21.6°C). Weather in June »

Weather in July

July in Stonington, Connecticut, is a warm summer month, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 66.9°F (19.4°C). The warmest month is July, with an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 66.9°F (19.4°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Stonington, Connecticut, with an average temperature varying between 66.4°F (19.1°C) and 77.7°F (25.4°C). In Stonington, the average high-temperature in August is relatively the same as in July - a still moderately hot 77.7°F (25.4°C). Weather in August »

Weather in September

September, the first month of the autumn in Stonington, is still a pleasant month, with an average temperature ranging between max 71.4°F (21.9°C) and min 59.9°F (15.5°C). In Stonington, the average high-temperature in September slightly decreases from a warm 77.7°F (25.4°C) in August to an agreeable 71.4°F (21.9°C). Weather in September »

Weather in October

October, like September, in Stonington, Connecticut, is another enjoyable autumn month, with an average temperature fluctuating between 51.6°F (10.9°C) and 61.7°F (16.5°C). In October, the average high-temperature drops from an agreeable 71.4°F (21.9°C) in September to an enjoyable 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Stonington, Connecticut, with an average temperature fluctuating between 51.3°F (10.7°C) and 41.2°F (5.1°C). In November, the average high-temperature decreases from an enjoyable 61.7°F (16.5°C) in October to a cool 51.3°F (10.7°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Stonington, Connecticut, with temperature in the range of an average high of 42.3°F (5.7°C) and an average low of 33.4°F (0.8°C). In Stonington, the average high-temperature in December slightly decreases from a fresh 51.3°F (10.7°C) in November to a cold 42.3°F (5.7°C). Weather in December »
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FAQ

What is the coldest month in Stonington?

With an average high-temperature of 36.5°F (2.5°C) and an average low-temperature of 26.6°F (-3°C), January is the coldest month in Stonington.

What is the least humid month in Stonington?

The months with the lowest humidity in Stonington, Connecticut, are January, March, April and November, with an average relative humidity of 74%.

How many days does it rain in Stonington?

In Stonington, during the entire year, the rain falls for 166.1 days and collects up to 34.09" (866mm) of precipitation.

When does it snow in Stonington?

Months with snowfall are January through April, October through December.

How many days does it snow in Stonington?

In Stonington, Connecticut, during the entire year, snow falls for 24.7 days and aggregates up to 7.87" (200mm) of snow.

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

January through March and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the month with the least sunshine in Stonington?

The months with the least sunshine are February and December, with an average of 4.9h of sunshine.

When does it snow the most in Stonington?

March is the month with the most snowfall. Snow falls for 5.3 days and accumulates 2.44" (62mm) of snow.

When is Daylight Saving Time (DST) in Stonington?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Stonington, Connecticut, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Stonington?

In Stonington, Connecticut, snow does not fall in May through September.

What is the most humid month in Stonington?

June is the most humid month, with an average relative humidity of 81%.

When are the longest days in Stonington?

With an average of 15h and 7min of daylight, June has the longest days of the year.

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

June through August, with an average maximum UV index of 6, are months with the highest UV index in Stonington.

What is the warmest month in Stonington?

With an average high-temperature of 77.9°F (25.5°C) and an average low-temperature of 66.9°F (19.4°C), July is the warmest month in Stonington, Connecticut.

What month has the most sunshine in Stonington?

August has the most sunshine of the year in Stonington, Connecticut, with an average of 10.6h of sunshine.

What is the driest month in Stonington?

The month with the least rainfall in Stonington is September, when the rain falls for 12.8 days and typically collects 1.73" (44mm) of precipitation.

What is the wettest month in Stonington?

December is the month with the most rainfall in Stonington. Rain falls for 13.4 days and accumulates 3.86" (98mm) of precipitation.

What is the month with the shortest days in Stonington?

December has the shortest days of the year in Stonington, Connecticut, with an average of 9h and 15min of daylight.

Average temperature
Stonington, CT

Average temperature - Stonington, CT

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (36.5°F).

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

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Average pressure
Stonington, CT

Average pressure - Stonington, CT

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Stonington, CT

Average wind speed - Stonington, CT

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

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Average humidity
Stonington, CT

Average humidity - Stonington, CT

The month with the highest relative humidity is June (81%).
The months with the lowest relative humidity are January, March, April and November (74%).

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Average rainfall
Stonington, CT

Average rainfall - Stonington, CT

The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days
Stonington, CT

Average rainfall days - Stonington, CT

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (10.1 days).

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Average snowfall
Stonington, CT

Average snowfall - Stonington, CT

The month with the highest snowfall is March (2.44").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Stonington, CT

Average snowfall days - Stonington, CT

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Stonington, CT

Average daylight / Average sunshine - Stonington, CT

The month with the longest days is June (Average daylight: 15h and 7min).
The month with the shortest days is December (Average daylight: 9h and 15min).

The month with the most sunshine is August (Average sunshine: 10.6h).
The months with the least sunshine are February and December (Average sunshine: 4.9).

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Average sunshine days
Stonington, CT

Average sunshine days - Stonington, CT

The month with the most sunshine days is November (16.5 days).
The months with the least sunshine days are June and July (11.7 days).

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Average UV index
Stonington, CT

Average UV index - Stonington, CT

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).

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Average visibility
Stonington, CT

Average visibility - Stonington, CT

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

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