Climate and monthly weather forecast
South Walpole, MA

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Weather in January

January, the same as December, is a wintry winter month in South Walpole, Massachusetts, with an average temperature varying between 22.3°F (-5.4°C) and 34.2°F (1.2°C). January, known for its average high temperature of 34.2°F (1.2°C) and an average low temperature of 22.3°F (-5.4°C), is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is another cold month in South Walpole, Massachusetts, with temperature in the range of an average high of 37°F (2.8°C) and an average low of 22.8°F (-5.1°C). The high-temperature average in February for South Walpole is a still icy 37°F (2.8°C), staying closely aligned with January's conditions. Weather in February »

Weather in March

March, the first month of the spring in South Walpole, is a frosty month, with an average temperature varying between 44.1°F (6.7°C) and 30.4°F (-0.9°C). A slight uplift in the average high-temperature marks March, adjusting from February's icy 37°F (2.8°C) to a chilly 44.1°F (6.7°C). Weather in March »

Weather in April

April in South Walpole, Massachusetts, is a mild spring month, with an average temperature varying between 40.1°F (4.5°C) and 55.9°F (13.3°C). As April sets, the average high-temperature shows an increase, moving up from a chilly 44.1°F (6.7°C) in March to a mild 55.9°F (13.3°C). Weather in April »

Weather in May

May, the last month of the spring in South Walpole, is a refreshing month, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 66.7°F (19.3°C). South Walpole's transition into May is marked by a temperature shift, moving from a moderate 55.9°F (13.3°C) in April to a still refreshing 66.7°F (19.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in South Walpole, Massachusetts, with an average temperature varying between 56.7°F (13.7°C) and 74.7°F (23.7°C). South Walpole observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's refreshing 66.7°F (19.3°C) to a moderately hot 74.7°F (23.7°C). Weather in June »

Weather in July

July, like June, in South Walpole, Massachusetts, is a moderately hot summer month, with an average temperature ranging between min 63.7°F (17.6°C) and max 82°F (27.8°C). July is the warmest month of the year, registering average temperatures as high as 82°F (27.8°C) and as low as 63.7°F (17.6°C). The heat index value for July is estimated at a hot 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 South Walpole, Massachusetts, with an average temperature varying between 80.8°F (27.1°C) and 62.2°F (16.8°C). The shift into August uncovers an average high-temperature of a still warm 80.8°F (27.1°C), subtly different from the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in South Walpole, Massachusetts, with an average temperature fluctuating between 55.9°F (13.3°C) and 73°F (22.8°C). The commencement of September indicates a gentle shift in the average high-temperature, receding from August's warm 80.8°F (27.1°C) to an agreeable 73°F (22.8°C). Weather in September »

Weather in October

October, like September, in South Walpole, Massachusetts, is another enjoyable autumn month, with an average temperature fluctuating between 46.9°F (8.3°C) and 61.7°F (16.5°C). The start of October signals a decrease in the average high-temperature, transitioning from a pleasant 73°F (22.8°C) in September to a refreshing 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in South Walpole, Massachusetts, with temperature in the range of an average low of 36.5°F (2.5°C) and an average high of 49.5°F (9.7°C). November comes with a decrease in the average high-temperature, falling from a refreshing 61.7°F (16.5°C) in October to a chilly 49.5°F (9.7°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in South Walpole, Massachusetts, with an average temperature fluctuating between 40.1°F (4.5°C) and 29.1°F (-1.6°C). The onset of December comes with a shift in the average high-temperature, falling from a frosty 49.5°F (9.7°C) in November to a wintry 40.1°F (4.5°C). Weather in December »
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January is the month when South Walpole, Massachusetts, experiences its coldest temperatures, averaging a high of 34.2°F (1.2°C) and a low of 22.3°F (-5.4°C).

How much does it rain?

Throughout the year, there are 149.5 rainfall days, and 29.61" (752mm) of precipitation is accumulated.

When does it snow?

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

How many days does it snow?

Throughout the year, in South Walpole, there are 30 snowfall days, and 17.05" (433mm) of snow is accumulated.

What are the months with the lowest UV index?

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

What are the most humid months?

February, September and October, with an average relative humidity of 78%, are most humid months.

What is the month with the least sunshine?

With an average of 4.7h of sunshine, February has the least sunshine of the year.

When does it snow the most?

March is the month with the most snowfall. Snow falls for 7.3 days and accumulates 4.25" (108mm) of snow.

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?

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

When it does not snow?

June through September are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 15h and 12min of daylight.

What is the month with the highest UV index?

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

What are the warmest months?

July is the warmest month in South Walpole, Massachusetts, with the temperature often reaching an average high of 82°F (27.8°C) and an average low of 63.7°F (17.6°C).

What month has the most sunshine?

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

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.42" (36mm) of precipitation.

What is the wettest month?

December is the month with the most rainfall. Rain falls for 10.4 days and accumulates 3.11" (79mm) of precipitation.

What is the month with the shortest days?

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

Average temperature
South Walpole, MA

Average temperature - South Walpole, MA

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.2°F).

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure
South Walpole, MA

Average pressure - South Walpole, MA

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
South Walpole, MA

Average wind speed - South Walpole, MA

The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity
South Walpole, MA

Average humidity - South Walpole, MA

The months with the highest relative humidity are February, September and October (78%).
The month with the lowest relative humidity is April (71%).

Average rainfall
South Walpole, MA

Average rainfall - South Walpole, MA

The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days
South Walpole, MA

Average rainfall days - South Walpole, MA

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (8.3 days).

Average snowfall
South Walpole, MA

Average snowfall - South Walpole, MA

The month with the highest snowfall is March (4.25").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
South Walpole, MA

Average snowfall days - South Walpole, MA

The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
South Walpole, MA

Average daylight / Average sunshine - South Walpole, 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 12min).

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 42min).

Average sunshine days
South Walpole, MA

Average sunshine days - South Walpole, MA

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (12.6 days).

Average UV index
South Walpole, MA

Average UV index - South Walpole, 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
South Walpole, MA

Average visibility - South Walpole, MA

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

South Walpole, Massachusetts, USA

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