Climate and monthly weather forecast
Attleboro, MA

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The climate of Attleboro

Bear in mind that Attleboro, a city in Massachusetts, USA, falls within the Köppen climate classification of Cfa. In layman's terms, this translates to a humid subtropical climate without a dry season. Geographically, Attleboro is situated north of the equator, contributing to its temperate weather patterns.

Throughout the year, the city experiences varied weather conditions. Temperature fluctuations are quite significant, with the highest average measures occurring from July to August, and the lowest average temperatures ranging from 22.5°F (-5.3°C) in January to 23.4°F (-4.8°C) in February.

Relative humidity in Attleboro generally hovers around the mid to high 70s. Rainfall is a common occurrence throughout the year, with the highest average rainfall measurement of 3.11" (79mm) observed in April. However, snowfall is not unheard of in Attleboro, as evidenced by December's average measurement of 2.32" (59mm) of snow.

A distinguishing trait of Attleboro's weather condition is the falling trend of cloud cover proportion and wind speed observed during summer months, in contrast to other weather elements commonly associated with summer. Observations reveal a gently declining wind speed from January's 9.2mph (14.8km/h) to July's 6.3mph (10.1km/h).

The best time to visit Attleboro

Considering the city's varied weather conditions, the most agreeable time to visit Attleboro would be between late spring and early autumn. From May through September, both maximum and minimum temperatures are pleasantly warm, ranging from 66.7°F (19.3°C) to 81.9°F (27.7°C) for highs, and 49.6°F (9.8°C) to 63.7°F (17.6°C) for lows. During these months, daylight hours are also generously long, extending up to 15.2 hours in June.

Coupled with a bright and generally sunny weather, UV index readings reach up to a maximum of 6, implying ample opportunities for outdoor activities. Attleboro's rainfall during these months is also quite lower compared to the rest of the year, with total monthly inches varying from 1.97 to 2.4.

The worst time to visit Attleboro

For those who are not partial to frigid temperatures, the least favorable time to visit Attleboro would unquestionably fall between December and February. The monthly average temperatures during these chilly winter months can drop to lows of 22.5°F (-5.3°C) in January and 29.3°F (-1.5°C) in December, marked by brief daylight hours that shrink to their shortest span of 9.2 hours in December.

Although rainfall is relatively lowering during these months, the city frequently experiences a sharp increment in snowfall, reaching up to 3.35" (85mm) in February.

Spring weather in Attleboro

Spring, spanning March to May, affords an appealing blend of temperatures in Attleboro. As the season advances, temperatures rise steadily; from March's high of 44.2°F (6.8°C) and low of 30.6°F (-0.8°C), to May's comfortable high of 66.7°F (19.3°C) and low of 49.6°F (9.8°C).

Rainfall totals for the spring months average around 2.74" (70mm), making it a relatively wet season. This period is also characterized by longer daylight hours stretching from 12 hours in March to 14.6 hours in May.

Summer weather in Attleboro

Attleboro's summer season extends from June through August, characterized by warm-to-hot temperatures. In these months, the city experiences temperatures varying from 74.1°F (23.4°C) to a high of 81.9°F (27.7°C), and lows falling between 56.7°F (13.7°C) and 63.7°F (17.6°C).

Despite occasional rain spells accumulating to an average of 2.21" (56mm) per month, the summer months in Attleboro offer a generous dose of sunshine with an average of 9.8 hours of sun per day.

Autumn weather in Attleboro

Autumn in Attleboro begins in September and stretches until November. During this season, temperatures start to drop, with highs ranging from 72.9°F (22.7°C) in September to a lower 50°F (10°C) during November, and lows falling from 56.1°F (13.4°C) to a chilly 37.2°F (2.9°C).

Daily sunshine hours also decrease during autumn, from 8.4 hours in September, down to a lesser 5.4 hours come November. The average monthly rainfall during autumn is recorded at approximately 2.53" (64mm).

Winter weather in Attleboro

Winter months in Attleboro are from December to February and are typically chilly. January is the coldest, with an average high of 34.3°F (1.3°C) and a frigid low of 22.5°F (-5.3°C).

Rainfall during winter is generally low, with monthly averages ranging from 2.2" (56mm) in February to 2.95" (75mm) in December. However, snowfall peaks during these months, averaging out at about 2.8" (71mm) for the winter season.

Weather in January

The new year in Attleboro, Massachusetts greets residents with cold weather; January experiences average low temperatures of 22.5°F (-5.3°C) and a maximum temperature of 34.3°F (1.3°C). The month hosts a relatively high level of snowfall, with approximately 7.8 days of it. Weather in January »

Weather in February

Following January, February continues the cold trend in weather in Attleboro, albeit with a minor enhancement in temperatures. Climatic data indicates the presence of 3.35" (85mm) of snowfall during February, marking it out amongst its winter counterparts. Weather in February »

Weather in March

With spring heralding its arrival, March offers milder weather conditions in Attleboro. The unique weather transition from snowfall of 4.06" (103mm) to virtually no snowfall as the month progresses is a telltale sign of the season change. Weather in March »

Weather in April

April sees the winter vestiges disappear, with warmer temperatures, greener landscapes, and longer sunlight hours established in Attleboro. The significant change from 0.83" (21mm) of snowfall in April, compared to the preceding months, marks the onset of a definitive spring season. Weather in April »

Weather in May

In May, the splendid spring weather in Attleboro transitions smoothly into summer, reflecting perfectly balanced weather conditions. The stark contrast of no snowfall, compared to the conditions a few months earlier, characterizes the change in weather. Weather in May »

Weather in June

Summer arrives in full force in June, marking it as one of the warmest months in Attleboro. With high temperatures peaking at 74.1°F (23.4°C), it is a remarkable transition from the cool spring. The weather is conducive for a plethora of outdoor activities, whether at the park or beach. Weather in June »

Weather in July

In Attleboro, July is the peak of summer's heat, boasting the highest average temperatures of the year around 81.9°F (27.7°C). The notable shift in weather conditions from 74.1°F (23.4°C) in June to 81.9°F (27.7°C) in July is unmistakably representative of the summer's peak. Weather in July »

Weather in August

August brings about a subtle shift from the extreme summer temperatures of July to more manageable warmth in Attleboro. The heat loosens its grip, and the wind gatherings speed, creating a comfortable environment. While the rains maintain a consistent pattern, the significant change in daylight hours marks a shift towards the shorter days of fall. Weather in August »

Weather in September

September is characterized by the arrival of fall in Attleboro; it is a period of transitional weather conditions that bring in the harvest season. A significant decrease in temperature from 80.4°F (26.9°C) in August to 72.9°F (22.7°C) in September signals the onset of cooler days. Weather in September »

Weather in October

October brings a definitive change in weather in Attleboro, characterized by colder temperatures and a significant increase in wind speed. The swift shift in monthly average temperatures from 72.9°F (22.7°C) to a cooler 61.5°F (16.4°C) in October marks the city's descent into a starker season. Weather in October »

Weather in November

November heralds the commencement of the holiday season in Attleboro and transitions steadily towards the colder months. The reintroduction of 0.59" (15mm) of snowfall in the weather, after a prolonged lull since April, hints at the chilly winter ahead. Weather in November »

Weather in December

December sees Attleboro firmly in the grasp of winter. The noticeable increase of snowfall up to 2.32" (59mm) creates a winter wonderland. The temperatures drop significantly, bringing with them a chilling wind that whistles through the city streets. Weather in December »
Updated: Jul 5, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

January is the month when Attleboro sees the average lowest temperatures, with a high of 34.3°F (1.3°C) and a low of 22.5°F (-5.3°C).

How much does it rain?

In Attleboro, Massachusetts, during the entire year, the rain falls for 149.9 days and collects up to 29.09" (739mm) of precipitation.

When does it snow?

Months with snowfall are January through May, November and December.

How many days does it snow?

In Attleboro, during the entire year, snow falls for 29.8 days and aggregates up to 14.13" (359mm) of snow.

When is the lowest UV index in Attleboro?

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

What is the most humid month in Attleboro?

The months with the highest humidity are February, June, September and October, with an average relative humidity of 78%.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 4.7h of sunshine.

What is the snowiest month?

The month with the most snowfall is March, when snow falls for 7.3 days and typically aggregates up to 4.06" (103mm) 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 in Attleboro?

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

What is the rainiest month?

April is the month with the most rainfall. Rain falls for 15.7 days and accumulates 3.11" (79mm) of precipitation.

When it does not snow?

June through October 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 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 part of the year is the hottest?

In Attleboro, Massachusetts, the peak average temperatures are observed in July, with a high of 81.9°F (27.7°C) and a low of 63.7°F (17.6°C).

What month has the most sunshine?

With an average of 10.4h of sunshine, August has the most sunshine of the year in Attleboro.

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?

December has the shortest days of the year, with an average of 9h and 12min of daylight.
Today
Tomorrow
Long-term
YearJFMAMJJASOND

Average temperature
Attleboro, MA

Average temperature - Attleboro, 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 (34.3°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 (22.5°F).

Average pressure
Attleboro, MA

Average pressure - Attleboro, 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
Attleboro, MA

Average wind speed - Attleboro, MA

The windiest months (with the highest average wind speed) are February and March (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity
Attleboro, MA

Average humidity - Attleboro, MA

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

Average rainfall
Attleboro, MA

Average rainfall - Attleboro, MA

The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.34").

Average rainfall days
Attleboro, MA

Average rainfall days - Attleboro, MA

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (8.3 days).

Average snowfall
Attleboro, MA

Average snowfall - Attleboro, MA

The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Attleboro, MA

Average snowfall days - Attleboro, MA

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

Average daylight / Average sunshine
Attleboro, MA

Average daylight / Average sunshine - Attleboro, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days
Attleboro, MA

Average sunshine days - Attleboro, MA

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is April (12.8 days).

Average UV index
Attleboro, MA

Average UV index - Attleboro, 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 cloud cover
Attleboro, MA

Average cloud cover - Attleboro, MA

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility
Attleboro, MA

Average visibility - Attleboro, MA

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

Attleboro, Massachusetts, USA

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