Climate and monthly weather forecast
Bolton, CT

Grass, brown sand, and trees on an empty beach in Bolton, Connecticut, overlooking the blue waters far out
Grass, brown sand, and trees on an empty beach in Bolton, Connecticut, overlooking the blue waters far out

Weather in January

January, like December, in Bolton, Connecticut, is a wintry winter month, with an average temperature fluctuating between 21.2°F (-6°C) and 32.9°F (0.5°C). With an average high-temperature of 32.9°F (0.5°C) and an average low-temperature of 21.2°F (-6°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Bolton, is another cold month, with an average temperature varying between 21.6°F (-5.8°C) and 36°F (2.2°C). In Bolton, the average high-temperature in February is practically the same as in January - a still cold 36°F (2.2°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Bolton, Connecticut, with an average temperature ranging between min 29.5°F (-1.4°C) and max 44.2°F (6.8°C). In Bolton, the average high-temperature in March slightly increases from a cold 36°F (2.2°C) in February to a chilly 44.2°F (6.8°C). Weather in March »

Weather in April

April in Bolton, Connecticut, is a moderate spring month, with an average temperature fluctuating between 56.7°F (13.7°C) and 39.9°F (4.4°C). In Bolton, the average high-temperature in April increases from a chilly 44.2°F (6.8°C) in March to a moderate 56.7°F (13.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Bolton, Connecticut, with an average temperature varying between 68.9°F (20.5°C) and 49.5°F (9.7°C). In Bolton, the average high-temperature in May rises from a moderate 56.7°F (13.7°C) in April to a pleasant 68.9°F (20.5°C). Weather in May »

Weather in June

June, the first month of the summer in Bolton, is a warm month, with an average temperature ranging between max 76.5°F (24.7°C) and min 56.8°F (13.8°C). In June, the average high-temperature marginally rises from an agreeable 68.9°F (20.5°C) in May to a moderately hot 76.5°F (24.7°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Bolton, Connecticut, with an average temperature ranging between max 83.1°F (28.4°C) and min 63.5°F (17.5°C). The warmest month is July, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 63.5°F (17.5°C). The average heat index in July is calculated to be a hot 90.1°F (32.3°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Bolton, Connecticut, with an average temperature ranging between min 62.2°F (16.8°C) and max 81°F (27.2°C). In Bolton, the average high-temperature in August is relatively the same as in July - a still moderately hot 81°F (27.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Bolton, is still a warm month, with temperature in the range of an average high of 73.4°F (23°C) and an average low of 55.2°F (12.9°C). In Bolton, Connecticut, the average high-temperature in September marginally drops from a warm 81°F (27.2°C) in August to a still moderately hot 73.4°F (23°C). Weather in September »

Weather in October

October, like September, in Bolton, Connecticut, is another enjoyable autumn month, with an average temperature ranging between min 46.6°F (8.1°C) and max 61.2°F (16.2°C). In October, the average high-temperature decreases from a warm 73.4°F (23°C) in September to an enjoyable 61.2°F (16.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Bolton, is another chilly month, with temperature in the range of an average low of 35.8°F (2.1°C) and an average high of 48.9°F (9.4°C). In Bolton, the average high-temperature in November drops from an enjoyable 61.2°F (16.2°C) in October to a chilly 48.9°F (9.4°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Bolton, Connecticut, with an average temperature ranging between max 38.7°F (3.7°C) and min 28°F (-2.2°C). In December, the average high-temperature drops from a chilly 48.9°F (9.4°C) in November to a cold 38.7°F (3.7°C). Weather in December »
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FAQ

What is the coldest month in Bolton?

With an average high-temperature of 32.9°F (0.5°C) and an average low-temperature of 21.2°F (-6°C), January is the coldest month.

How many days does it rain in Bolton?

Throughout the year, in Bolton, Connecticut, there are 164.8 rainfall days, and 31.77" (807mm) of precipitation is accumulated.

When does it snow in Bolton?

January through May, October through December are months with snowfall in Bolton, Connecticut.

How much does it snow in Bolton?

Throughout the year, there are 31.6 snowfall days, and 17.13" (435mm) of snow is accumulated.

What is the month with the lowest UV index in Bolton?

The months with the lowest UV index in Bolton, Connecticut, are January through March, November and December, with an average maximum UV index of 2.

What is the most humid month in Bolton?

With an average relative humidity of 80%, February is the most humid month.

When does it snow the most in Bolton?

February is the month with the most snowfall. Snow falls for 8.5 days and accumulates 4.8" (122mm) of snow.

What is the month with the least sunshine in Bolton?

February has the least sunshine of the year in Bolton, with an average of 4.6h of sunshine.

When is Daylight Saving Time (DST) in Bolton?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Bolton, 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.

What is the least humid month in Bolton?

April is the least humid month in Bolton, with an average relative humidity of 71%.

When it does not snow in Bolton?

June through September are months without snowfall in Bolton.

When are the longest days in Bolton?

June has the longest days of the year in Bolton, Connecticut, with an average of 15h and 10min of daylight.

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

The months with the highest UV index in Bolton are June and July, with an average maximum UV index of 6.

What is the warmest month in Bolton?

With an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 63.5°F (17.5°C), July is the warmest month in Bolton, Connecticut.

What are the months with the most sunshine in Bolton?

July and August, with an average of 10.4h of sunshine, are months with the most sunshine in Bolton, Connecticut.

What is the driest month in Bolton?

The month with the least rainfall in Bolton, Connecticut, is September, when the rain falls for 12.5 days and typically collects 1.77" (45mm) of precipitation.

What is the rainiest month in Bolton?

The month with the most rainfall in Bolton, Connecticut, is December, when the rain falls for 11.8 days and typically aggregates up to 3.27" (83mm) of precipitation.

What is the month with the shortest days in Bolton?

The month with the shortest days in Bolton is December, with an average of 9h and 12min of daylight.

Average temperature
Bolton, CT

Average temperature - Bolton, CT

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (32.9°F).

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure
Bolton, CT

Average pressure - Bolton, CT

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Bolton, CT

Average wind speed - Bolton, CT

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average rainfall
Bolton, CT

Average rainfall - Bolton, CT

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days
Bolton, CT

Average rainfall days - Bolton, CT

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (10 days).

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Average snowfall
Bolton, CT

Average snowfall - Bolton, CT

The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Bolton, CT

Average snowfall days - Bolton, CT

The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Bolton, CT

Average daylight / Average sunshine - Bolton, CT

The month with the longest days is June (Average daylight: 15h and 10min).
The month with the shortest days is December (Average daylight: 9h and 12min).

The months with the most sunshine are July and August (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days
Bolton, CT

Average sunshine days - Bolton, CT

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.2 days).

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Average UV index
Bolton, CT

Average UV index - Bolton, CT

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

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Average visibility
Bolton, CT

Average visibility - Bolton, CT

The months with the highest visibility are January, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, May and September (5mi).

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