Climate and monthly weather forecast
Mattapan, MA

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Weather in January

January, the same as December, is an icy winter month in Mattapan, Massachusetts, with an average temperature varying between 33.6°F (0.9°C) and 21.9°F (-5.6°C). Temperature readings reach their annual highs in January, averaging 33.6°F (0.9°C) and a minimum average of 21.9°F (-5.6°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Mattapan, Massachusetts, with temperature in the range of an average high of 36.5°F (2.5°C) and an average low of 23.2°F (-4.9°C). The shift into February records an average high-temperature of a still cold 36.5°F (2.5°C), subtly varied from January's 33.6°F (0.9°C). Weather in February »

Weather in March

March, the first month of the spring in Mattapan, is a chilly month, with an average temperature varying between 43.7°F (6.5°C) and 30.7°F (-0.7°C). The arrival of March witnesses a small shift in the average high-temperature, moving from a cold 36.5°F (2.5°C) in February to a frosty 43.7°F (6.5°C). Weather in March »

Weather in April

April in Mattapan, Massachusetts, is a mild spring month, with an average temperature ranging between min 40.3°F (4.6°C) and max 55.6°F (13.1°C). April brings a rise in the average high-temperature, transitioning from March's chilly 43.7°F (6.5°C) to a moderate 55.6°F (13.1°C). Weather in April »

Weather in May

May, the last month of the spring in Mattapan, is a comfortable month, with an average temperature ranging between max 66.6°F (19.2°C) and min 50°F (10°C). The shift from April to May brings an increase in the average high-temperature, moving from a mild 55.6°F (13.1°C) to an enjoyable 66.6°F (19.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Mattapan, Massachusetts, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 57°F (13.9°C). The shift into June is characterized by a subtle rise in the average high-temperature, transitioning from May's comfortable 66.6°F (19.2°C) to a warm 74.1°F (23.4°C). Weather in June »

Weather in July

July, like June, in Mattapan, Massachusetts, is another warm summer month, with an average temperature varying between 81.3°F (27.4°C) and 64.8°F (18.2°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 81.3°F (27.4°C) and a low of 64.8°F (18.2°C). The average heat index in July is estimated at a tropical 86°F (30°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Mattapan, Massachusetts, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 80.4°F (26.9°C). Mattapan's average high-temperature in August is a still warm 80.4°F (26.9°C), marking an insignificant difference from the 81.3°F (27.4°C) of July. Weather in August »

Weather in September

September, the first month of the autumn in Mattapan, is also an agreeable month, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 72.7°F (22.6°C). In Mattapan, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's warm 80.4°F (26.9°C) to a pleasant 72.7°F (22.6°C). Weather in September »

Weather in October

October, like September, in Mattapan, Massachusetts, is another comfortable autumn month, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 47.3°F (8.5°C). The onset of October introduces a moderate change in Mattapan's weather, with average high-temperatures falling from September's pleasant 72.7°F (22.6°C) to a refreshing 61.3°F (16.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Mattapan, is another chilly month, with an average temperature fluctuating between 49.3°F (9.6°C) and 36.9°F (2.7°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from a comfortable 61.3°F (16.3°C) in October to a frosty 49.3°F (9.6°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Mattapan, Massachusetts, with an average temperature ranging between min 29.1°F (-1.6°C) and max 39.6°F (4.2°C). The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a frosty 49.3°F (9.6°C) in November to a cold 39.6°F (4.2°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Mattapan?

In Mattapan, Massachusetts, the lowest temperatures are generally noted in January, averaging a high of 33.6°F (0.9°C) and a low of 21.9°F (-5.6°C).

How many days does it rain in Mattapan?

Throughout the year, there are 147.4 rainfall days, and 28.39" (721mm) of precipitation is accumulated.

When does it snow in Mattapan?

January through April, October through December are months with snowfall in Mattapan, Massachusetts.

How much does it snow in Mattapan?

Throughout the year, in Mattapan, Massachusetts, there are 32.7 snowfall days, and 22.01" (559mm) of snow is accumulated.

When is the lowest UV index in Mattapan?

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

What is the most humid month in Mattapan?

February is the most humid month, with an average relative humidity of 78%.

What is the month with the least sunshine in Mattapan?

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

When does it snow the most in Mattapan?

March is the month with the most snowfall in Mattapan. Snow falls for 7.3 days and accumulates 5.24" (133mm) of snow.

When is Daylight Saving Time (DST) in Mattapan?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Mattapan, 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 Mattapan?

April is the least humid month in Mattapan, with an average relative humidity of 70%.

When it does not snow in Mattapan?

In Mattapan, snow does not fall in May through September.

When are the longest days in Mattapan?

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

When is the highest UV index in Mattapan?

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

What month is the hottest in Mattapan?

July, having an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 64.8°F (18.2°C), is the warmest month in Mattapan, Massachusetts.

What month has the most sunshine in Mattapan?

The month with the most sunshine is August, with an average of 10.5h of sunshine.

What is the driest month in Mattapan?

September is the month with the least rainfall in Mattapan. Rain falls for 11.8 days and accumulates 1.5" (38mm) of precipitation.

What is the wettest month in Mattapan?

The month with the most rainfall in Mattapan, Massachusetts, is December, when the rain falls for 10.7 days and typically aggregates up to 2.95" (75mm) of precipitation.

What is the month with the shortest days in Mattapan?

December has the shortest days of the year in Mattapan, with an average of 9h and 12min of daylight.

Average temperature
Mattapan, MA

Average temperature - Mattapan, MA

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (33.6°F).

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

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Average pressure
Mattapan, MA

Average pressure - Mattapan, 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).

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Average wind speed
Mattapan, MA

Average wind speed - Mattapan, MA

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average rainfall
Mattapan, MA

Average rainfall - Mattapan, MA

The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days
Mattapan, MA

Average rainfall days - Mattapan, MA

The month with the highest number of rainy days is July (15.8 days).
The months with the least rainy days are January and February (7.8 days).

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Average snowfall
Mattapan, MA

Average snowfall - Mattapan, MA

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

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Average snowfall days
Mattapan, MA

Average snowfall days - Mattapan, MA

The month with the highest number of snowfall days is February (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Mattapan, MA

Average daylight / Average sunshine - Mattapan, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days
Mattapan, MA

Average sunshine days - Mattapan, MA

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is April (13.2 days).

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Average UV index
Mattapan, MA

Average UV index - Mattapan, 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
Mattapan, MA

Average visibility - Mattapan, MA

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

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Mattapan, Massachusetts, USA

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