Climate and monthly weather forecast
Bolton, MA

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Weather in January

January, the same as December, in Bolton, Massachusetts, is a freezing cold winter month, with temperature in the range of an average high of 31.5°F (-0.3°C) and an average low of 19.8°F (-6.8°C). In Bolton, January is the coldest month, with temperatures averaging a high of 31.5°F (-0.3°C) and a low of 19.8°F (-6.8°C). Weather in January »

Weather in February

February, the last month of the winter in Bolton, is a cold month, with temperature in the range of an average low of 20.1°F (-6.6°C) and an average high of 34.7°F (1.5°C). January's transformation into February witnesses an average high-temperature of an icy 34.7°F (1.5°C), noting a minor change from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Bolton, is also an icy month, with an average temperature fluctuating between 27.9°F (-2.3°C) and 42.4°F (5.8°C). In Bolton, stepping into March brings a gentle temperature nudge, moving slightly up from February's cold 34.7°F (1.5°C) to a still wintry 42.4°F (5.8°C). Weather in March »

Weather in April

April is a mild spring month in Bolton, Massachusetts, with temperature in the range of an average high of 55.6°F (13.1°C) and an average low of 38.1°F (3.4°C). The rise of average high-temperatures is seen in April, with an increase from a wintry 42.4°F (5.8°C) in March to a mild 55.6°F (13.1°C). Weather in April »

Weather in May

May, the last month of the spring in Bolton, is a comfortable month, with an average temperature ranging between min 47.8°F (8.8°C) and max 67.5°F (19.7°C). Bolton sees a rise in temperature during May, with average high-temperatures transitioning from a refreshing 55.6°F (13.1°C) in April to an enjoyable 67.5°F (19.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Bolton, Massachusetts, with an average temperature ranging between min 55.4°F (13°C) and max 75.2°F (24°C). June showcases a minor temperature ascent, adjusting from May's enjoyable 67.5°F (19.7°C) to a warm 75.2°F (24°C). Weather in June »

Weather in July

July, like June, in Bolton, Massachusetts, is another warm summer month, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 81.9°F (27.7°C). Bolton's temperatures peak on average in July, reaching 81.9°F (27.7°C) at their highest and 62.2°F (16.8°C) at their lowest. The heat index in July is estimated at a tropical 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Bolton, Massachusetts, with an average temperature varying between 80.1°F (26.7°C) and 60.4°F (15.8°C). Bolton records a slight change with August's average high-temperatures adjusting to a still moderately hot 80.1°F (26.7°C) from July's 81.9°F (27.7°C). Weather in August »

Weather in September

September, the first month of the autumn in Bolton, is also an agreeable month, with an average temperature fluctuating between 72.5°F (22.5°C) and 54°F (12.2°C). With the onset of September, Bolton's average high-temperature slightly adjusts, moderately receding from August's moderately hot 80.1°F (26.7°C) to an agreeable 72.5°F (22.5°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Bolton, Massachusetts, with an average temperature ranging between min 45°F (7.2°C) and max 59.7°F (15.4°C). The onset of October entails a temperature shift, as the average high-temperature decreases from a pleasant 72.5°F (22.5°C) in September to a mild 59.7°F (15.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Bolton, is another chilly month, with an average temperature varying between 47.3°F (8.5°C) and 34.3°F (1.3°C). The shift from October to November corresponds with a decrease in the average high-temperature, down to a chilly 47.3°F (8.5°C) from a mild 59.7°F (15.4°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Bolton, Massachusetts, with temperature in the range of an average low of 26.6°F (-3°C) and an average high of 37.4°F (3°C). The onset of December is marked by a decrease in temperature, transitioning from a frosty 47.3°F (8.5°C) in November to a cold 37.4°F (3°C). Weather in December »
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Frequently asked questions

What are the coldest months in Bolton?

January is the coldest month in Bolton, Massachusetts, exhibiting average temperatures of 31.5°F (-0.3°C) at the peak and 19.8°F (-6.8°C) at the base.

How many days does it rain in Bolton?

Throughout the year, in Bolton, Massachusetts, there are 150.4 rainfall days, and 28.86" (733mm) of precipitation is accumulated.

When does it snow in Bolton?

January through May, October through December are months with snowfall.

How many days does it snow in Bolton?

In Bolton, during the entire year, snow falls for 36.5 days and aggregates up to 23.82" (605mm) of snow.

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

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

What is the most humid month in Bolton?

February is the most humid month in Bolton, with an average relative humidity of 81%.

When does it snow the most in Bolton?

The month with the most snowfall is February, when snow falls for 9.4 days and typically aggregates up to 6.1" (155mm) of snow.

What is the month with the least sunshine in Bolton?

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

When is Daylight Saving Time (DST) in Bolton?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, 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, Massachusetts.

When are the longest days in Bolton?

The month with the longest days is June, with an average of 15h and 12min of daylight.

What are the months with the highest UV index in Bolton?

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

What part of the year is the hottest in Bolton?

With its average high temperature of 81.9°F (27.7°C) and a low of 62.2°F (16.8°C), July is regarded as the warmest month in Bolton.

What month has the most sunshine in Bolton?

With an average of 10.2h of sunshine, August has the most sunshine of the year in Bolton, Massachusetts.

What is the driest month in Bolton?

The month with the least rainfall in Bolton, Massachusetts, is September, when the rain falls for 12.3 days and typically collects 1.57" (40mm) of precipitation.

What is the wettest month in Bolton?

December is the month with the most rainfall in Bolton. Rain falls for 10.7 days and accumulates 2.91" (74mm) of precipitation.

What is the month with the shortest days in Bolton?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

Average temperature
Bolton, MA

Average temperature - Bolton, MA

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (31.5°F).

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure
Bolton, MA

Average pressure - Bolton, MA

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Bolton, MA

Average wind speed - Bolton, MA

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average rainfall
Bolton, MA

Average rainfall - Bolton, MA

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days
Bolton, MA

Average rainfall days - Bolton, MA

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall
Bolton, MA

Average snowfall - Bolton, MA

The month with the highest snowfall is February (6.1").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Bolton, MA

Average snowfall days - Bolton, MA

The month with the highest number of snowfall days is February (9.4 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, MA

Average daylight / Average sunshine - Bolton, MA

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Bolton, MA

Average sunshine days - Bolton, MA

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index
Bolton, MA

Average UV index - Bolton, MA

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, November and December (UV index 2).

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Average visibility
Bolton, MA

Average visibility - Bolton, MA

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

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Bolton, Massachusetts, USA

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