Climate and monthly weather forecast
Southborough, MA

Weather in January

January, like December, in Southborough, Massachusetts, is another cold winter month, with an average temperature varying between 32.5°F (0.3°C) and 19.8°F (-6.8°C). January is the coldest month, with an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 19.8°F (-6.8°C). Weather in January »

Weather in February

February, the last month of the winter in Southborough, is another cold month, with an average temperature ranging between max 35.2°F (1.8°C) and min 20.7°F (-6.3°C). In Southborough, the average high-temperature in February is relatively the same as in January - a still cold 35.2°F (1.8°C). Weather in February »

Weather in March

March, the first month of the spring in Southborough, is a frosty month, with temperature in the range of an average high of 43°F (6.1°C) and an average low of 28.8°F (-1.8°C). In Southborough, the average high-temperature in March marginally rises from a wintry 35.2°F (1.8°C) in February to a frosty 43°F (6.1°C). Weather in March »

Weather in April

April is a moderate spring month in Southborough, Massachusetts, with an average temperature ranging between max 55.9°F (13.3°C) and min 39°F (3.9°C). In April, the average high-temperature rises from a frosty 43°F (6.1°C) in March to a moderate 55.9°F (13.3°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Southborough, Massachusetts, with an average temperature fluctuating between 67.5°F (19.7°C) and 48.7°F (9.3°C). In May, the average high-temperature increases from a moderate 55.9°F (13.3°C) in April to a comfortable 67.5°F (19.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Southborough, Massachusetts, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 75.2°F (24°C). In Southborough, the average high-temperature in June slightly increases from a comfortable 67.5°F (19.7°C) in May to a moderately hot 75.2°F (24°C). Weather in June »

Weather in July

July, like June, in Southborough, Massachusetts, is another warm summer month, with an average temperature ranging between min 63°F (17.2°C) and max 82°F (27.8°C). With an average high-temperature of 82°F (27.8°C) and an average low-temperature of 63°F (17.2°C), July is the warmest month. In July, the average heat index is calculated to be a hot 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Southborough, Massachusetts, with an average temperature ranging between min 61.7°F (16.5°C) and max 80.4°F (26.9°C). In August, the average high-temperature is essentially the same as in July - a still warm 80.4°F (26.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Southborough, Massachusetts, with an average temperature ranging between max 72.9°F (22.7°C) and min 54.7°F (12.6°C). In Southborough, the average high-temperature in September marginally drops from a warm 80.4°F (26.9°C) in August to an agreeable 72.9°F (22.7°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Southborough, Massachusetts, with an average temperature varying between 45.5°F (7.5°C) and 59.7°F (15.4°C). In October, the average high-temperature decreases from a pleasant 72.9°F (22.7°C) in September to a moderate 59.7°F (15.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Southborough, is another chilly month, with an average temperature ranging between max 48.6°F (9.2°C) and min 34.7°F (1.5°C). In Southborough, the average high-temperature in November drops from a mild 59.7°F (15.4°C) in October to a frosty 48.6°F (9.2°C). Weather in November »

Weather in December

December, the first month of the winter in Southborough, is also a wintry month, with temperature in the range of an average high of 38.3°F (3.5°C) and an average low of 27°F (-2.8°C). In Southborough, the average high-temperature in December drops from a chilly 48.6°F (9.2°C) in November to a cold 38.3°F (3.5°C). Weather in December »
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FAQ

What is the coldest month in Southborough?

With an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 19.8°F (-6.8°C), January is the coldest month.

How much does it rain in Southborough?

Throughout the year, in Southborough, Massachusetts, there are 140.8 rainfall days, and 26.34" (669mm) of precipitation is accumulated.

When does it snow in Southborough?

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

How many days does it snow in Southborough?

Throughout the year, there are 32.4 snowfall days, and 21.61" (549mm) of snow is accumulated.

When is the lowest UV index in Southborough?

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

What is the most humid month in Southborough?

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

What is the snowiest month in Southborough?

The month with the most snowfall is February, when snow falls for 7.8 days and typically aggregates up to 5.24" (133mm) of snow.

What is the month with the least sunshine in Southborough?

The month with the least sunshine in Southborough, Massachusetts, is February, with an average of 4.8h of sunshine.

What is the wettest month in Southborough?

The wettest months in Southborough are March, November and December, with an average 2.56" (65mm) of rainfall.

When is Daylight Saving Time (DST) in Southborough?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Southborough, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Southborough?

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

When it does not snow in Southborough?

June through September are months without snowfall.

When are the longest days in Southborough?

With an average of 15h and 13min of daylight, June has the longest days of the year in Southborough.

When is the highest UV index in Southborough?

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

What is the warmest month in Southborough?

The warmest month in Southborough is July, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 63°F (17.2°C).

What month has the most sunshine in Southborough?

August has the most sunshine of the year, with an average of 10.3h of sunshine.

What is the driest month in Southborough?

The month with the least rainfall in Southborough is September, when the rain falls for 11.5 days and typically collects 1.34" (34mm) of precipitation.

What is the month with the shortest days in Southborough?

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

Average pressure
Southborough, MA

Average pressure - Southborough, 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
Southborough, MA

Average wind speed - Southborough, 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 humidity
Southborough, MA

Average humidity - Southborough, MA

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

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Average rainfall
Southborough, MA

Average rainfall - Southborough, MA

The wettest months (with the highest rainfall) are March, November and December (2.56").
The driest month (with the least rainfall) is September (1.34").

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Average rainfall days
Southborough, MA

Average rainfall days - Southborough, MA

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall
Southborough, MA

Average snowfall - Southborough, MA

The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Southborough, MA

Average snowfall days - Southborough, MA

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Southborough, MA

Average daylight / Average sunshine - Southborough, MA

The month with the longest days is June (Average daylight: 15h and 13min).
The month with the shortest days is December (Average daylight: 9h and 9min).

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days
Southborough, MA

Average sunshine days - Southborough, MA

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is April (13.4 days).

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Average UV index
Southborough, MA

Average UV index - Southborough, 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
Southborough, MA

Average visibility - Southborough, MA

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

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