Climate and monthly weather forecast
Southborough, MA

Share

Weather in January

January, like December, in Southborough, Massachusetts, is a wintry winter month, with an average temperature ranging between max 32.5°F (0.3°C) and min 19.8°F (-6.8°C). January is the coldest month of the year, registering average temperatures as high as 32.5°F (0.3°C) and as low as 19.8°F (-6.8°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Southborough, Massachusetts, with an average temperature fluctuating between 35.2°F (1.8°C) and 20.7°F (-6.3°C). Southborough registers an average high-temperature of a still wintry 35.2°F (1.8°C) at the commencement of February, closely related to the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Southborough, Massachusetts, with an average temperature ranging between min 28.8°F (-1.8°C) and max 43°F (6.1°C). March's arrival signals a modest temperature shift, moving from an icy 35.2°F (1.8°C) in February to a chilly 43°F (6.1°C). Weather in March »

Weather in April

April is a refreshing 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). April marks a rise in the average high-temperature, moving from March's frosty 43°F (6.1°C) to a moderate 55.9°F (13.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Southborough, Massachusetts, with an average temperature fluctuating between 48.7°F (9.3°C) and 67.5°F (19.7°C). May's arrival coincides with a temperature rise, moving from April's mild 55.9°F (13.3°C) to a still refreshing 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 an average temperature varying between 55.9°F (13.3°C) and 75.2°F (24°C). As May transitions into June, Southborough notices a gentle rise in the average high-temperature, transitioning from a comfortable 67.5°F (19.7°C) to a warm 75.2°F (24°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Southborough, Massachusetts, with an average temperature ranging between min 63°F (17.2°C) and max 82°F (27.8°C). July, recording an average high temperature of 82°F (27.8°C) and a low temperature of 63°F (17.2°C), is Southborough's warmest month. In July, the heat index is evaluated at 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 varying between 61.7°F (16.5°C) and 80.4°F (26.9°C). Southborough's shift into August is marked by a subtle change to a still moderately hot 80.4°F (26.9°C) from July's 82°F (27.8°C) in temperature. 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 varying between 54.7°F (12.6°C) and 72.9°F (22.7°C). The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 80.4°F (26.9°C) in August to a pleasant 72.9°F (22.7°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Southborough, Massachusetts, with an average temperature ranging between max 59.7°F (15.4°C) and min 45.5°F (7.5°C). In Southborough, the beginning of October is marked by a lowered average high-temperature, shifting from September's agreeable 72.9°F (22.7°C) to a moderate 59.7°F (15.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Southborough, Massachusetts, with an average temperature fluctuating between 34.7°F (1.5°C) and 48.6°F (9.2°C). A decrease in the average high-temperature is observed during November, shifting from a moderate 59.7°F (15.4°C) in October to a chilly 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). December involves a decrease in temperature, down from a chilly 48.6°F (9.2°C) in November to an icy 38.3°F (3.5°C). Weather in December »
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

In Southborough, the lowest temperatures are generally noted in January, averaging a high of 32.5°F (0.3°C) and a low of 19.8°F (-6.8°C).

How many days does it rain?

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

When does it snow?

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

How many days does it snow?

In Southborough, during the entire year, snow falls for 32.4 days and aggregates up to 21.61" (549mm) of snow.

When is the lowest UV index?

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

What is the most humid month in Southborough?

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

When does it snow the most?

February is the month with the most snowfall. Snow falls for 7.8 days and accumulates 5.24" (133mm) of snow.

What is the month with the least sunshine?

With an average of 4.8h of sunshine, February has the least sunshine of the year.

What is the rainiest month?

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

When is Daylight Saving Time (DST)?

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?

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

When it does not snow in Southborough?

In Southborough, snow does not fall in June through September.

When are the longest days?

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?

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

What month is the hottest?

The highest temperatures are recorded in July, with averages reaching a high of 82°F (27.8°C) and a low of 63°F (17.2°C).

What month has the most sunshine?

The month with the most sunshine is August, with an average of 10.3h of sunshine.

What is the driest month?

The month with the least rainfall 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?

The month with the shortest days is December, with an average of 9h and 6min of daylight.

Average temperature
Southborough, MA

Average temperature - Southborough, MA

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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).

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).

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%).

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").

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).

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").

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).

Average daylight / Average sunshine
Southborough, MA

Average daylight / Average sunshine - Southborough, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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).

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).

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).

Southborough, Massachusetts, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location