Climate and monthly weather forecast
Chestnut Hill, MA

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Weather in January

January, like December, in Chestnut Hill, Massachusetts, is an icy winter month, with temperature in the range of an average high of 33.6°F (0.9°C) and an average low of 21.7°F (-5.7°C). In Chestnut Hill, the month of January is known for its lowest average temperatures, reaching a high of 33.6°F (0.9°C) and a low of 21.7°F (-5.7°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Chestnut Hill, Massachusetts, with an average temperature varying between 23°F (-5°C) and 36.3°F (2.4°C). As January turns into February, the average high-temperatures rest at a still icy 36.3°F (2.4°C), showing a minor variation from the prior month. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Chestnut Hill, Massachusetts, with an average temperature fluctuating between 30°F (-1.1°C) and 43.3°F (6.3°C). The onset of March introduces a subtle rise in the average high-temperature, nudging from a wintry 36.3°F (2.4°C) in February to a chilly 43.3°F (6.3°C). Weather in March »

Weather in April

April in Chestnut Hill, Massachusetts, is a mild spring month, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 39.9°F (4.4°C). As Chestnut Hill transitions into April, the average high-temperature is observed to rise from a frosty 43.3°F (6.3°C) in March to a refreshing 55.9°F (13.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Chestnut Hill, Massachusetts, with an average temperature ranging between max 66.7°F (19.3°C) and min 49.6°F (9.8°C). In Chestnut Hill, stepping into May brings a temperature increase, moving up from April's mild 55.9°F (13.3°C) to a comfortable 66.7°F (19.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Chestnut Hill, Massachusetts, with an average temperature fluctuating between 75°F (23.9°C) and 56.8°F (13.8°C). The start of June brings a subtle shift in the average high-temperature, edging up from May's comfortable 66.7°F (19.3°C) to a warm 75°F (23.9°C). Weather in June »

Weather in July

July, like June, in Chestnut Hill, Massachusetts, is another warm summer month, with an average temperature varying between 81.9°F (27.7°C) and 64°F (17.8°C). With average high and low temperatures of 81.9°F (27.7°C) and 64°F (17.8°C) respectively, July is Chestnut Hill's warmest month. The average heat index in July is evaluated 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 Chestnut Hill, Massachusetts, with an average temperature ranging between min 63°F (17.2°C) and max 81°F (27.2°C). The shift from July to August is characterized by an average high-temperature of a still warm 81°F (27.2°C), not significantly different from the 81.9°F (27.7°C) of July. Weather in August »

Weather in September

September, the first month of the autumn in Chestnut Hill, is also an agreeable month, with an average temperature ranging between max 73°F (22.8°C) and min 56.3°F (13.5°C). The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a warm 81°F (27.2°C) in August to a pleasant 73°F (22.8°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Chestnut Hill, Massachusetts, with an average temperature ranging between min 47.3°F (8.5°C) and max 61°F (16.1°C). October brings a drop in Chestnut Hill's average high-temperature, falling from a pleasant 73°F (22.8°C) in September to a refreshing 61°F (16.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Chestnut Hill, Massachusetts, with temperature in the range of an average low of 36.7°F (2.6°C) and an average high of 49.3°F (9.6°C). In Chestnut Hill, the average high-temperature in November decreases from a refreshing 61°F (16.1°C) in October to a chilly 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 Chestnut Hill, Massachusetts, with an average temperature fluctuating between 39.2°F (4°C) and 28.8°F (-1.8°C). A shift in the average high-temperature occurs in December, reducing from a chilly 49.3°F (9.6°C) in November to a cold 39.2°F (4°C). Weather in December »

Frequently asked questions

What part of the year is the coldest in Chestnut Hill?

With an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 21.7°F (-5.7°C), January is the coldest month.

How much does it rain?

Throughout the year, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

When does it snow?

January through May, November and December are months with snowfall in Chestnut Hill.

How much does it snow in Chestnut Hill?

Throughout the year, there are 18.8 snowfall days, and 3.15" (80mm) of snow is accumulated.

When is 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 is the most humid month?

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

What is the month with the least sunshine?

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

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 70%.

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.

When is the highest UV index?

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

What time of the year is the hottest?

July brings the highest temperatures, with an average high of 81.9°F (27.7°C) and an average low of 64°F (17.8°C).

What month has the most sunshine in Chestnut Hill?

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

What is the driest month?

September is the month with the least rainfall in Chestnut Hill. Rain falls for 6.6 days and accumulates 0.24" (6mm) of precipitation.

What is the wettest month in Chestnut Hill?

November is the month with the most rainfall. Rain falls for 5.6 days and accumulates 0.67" (17mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is December, when snow falls for 2.6 days and typically aggregates up to 0.91" (23mm) of snow.

What is the month with the shortest days?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

Average temperature
Chestnut Hill, MA

Average temperature - Chestnut Hill, 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 (33.6°F).

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure
Chestnut Hill, MA

Average pressure - Chestnut Hill, 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
Chestnut Hill, MA

Average wind speed - Chestnut Hill, MA

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity
Chestnut Hill, MA

Average humidity - Chestnut Hill, MA

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).

Average rainfall
Chestnut Hill, MA

Average rainfall - Chestnut Hill, MA

The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.24").

Average rainfall days
Chestnut Hill, MA

Average rainfall days - Chestnut Hill, MA

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is February (4.1 days).

Average snowfall
Chestnut Hill, MA

Average snowfall - Chestnut Hill, MA

The month with the highest snowfall is December (0.91").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Chestnut Hill, MA

Average snowfall days - Chestnut Hill, MA

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Chestnut Hill, MA

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

Average sunshine days
Chestnut Hill, MA

Average sunshine days - Chestnut Hill, MA

The months with the most sunshine days are January and November (22.5 days).
The month with the least sunshine days is June (17.5 days).

Average UV index
Chestnut Hill, MA

Average UV index - Chestnut Hill, 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
Chestnut Hill, MA

Average visibility - Chestnut Hill, 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).

Chestnut Hill, Massachusetts, USA

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