August weather forecast
Boston, NY

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Weather in August

August, the last month of the summer in Boston, is another warm month, with temperature in the range of an average low of 58.1°F (14.5°C) and an average high of 75.9°F (24.4°C).

Temperature

August's onset brings an average high-temperature of a still warm 75.9°F (24.4°C), showing a minute difference from July's 77.2°F (25.1°C). An average low-temperature of 58.1°F (14.5°C) is observed during August nights.

Humidity

The average relative humidity in August is 80%.

Rainfall

In Boston, during August, the rain falls for 16.3 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 151.9 rainfall days, and 19.21" (488mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day in Boston is 13h and 52min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:34 pm. On the last day of August, sunrise is at 6:39 am and sunset at 7:50 pm EDT.

Sunshine

July and August, with an average of 10.1h of sunshine, are months with the most sunshine in Boston.

UV index

The months with the highest UV index in Boston are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 5 during August translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What is the temperature in August in Boston?

The average high-temperature, in August, in Boston, is 75.9°F (24.4°C), while the average low-temperature is 58.1°F (14.5°C).

What is the average humidity in August in Boston?

In August, the average relative humidity in Boston, New York, is 80%.

How much does it rain in Boston in August?

In Boston, during August, the rain falls for 16.3 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When it does not snow in Boston?

June through September are months without snowfall in Boston, New York.

What is the average length of the day in August in Boston?

In August, the average day length in Boston, New York, is 13h and 52min.

When are sunrise and sunset in August in Boston?

On the first day of August in Boston, New York, sunrise is at 6:07 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:50 pm EDT.

What are the months with the most sunshine in Boston?

The months with the most sunshine in Boston are July and August, with an average of 10.1h of sunshine.

How long on average sun shines in August in Boston?

The average sunshine duration in August in Boston, New York, is 10.1h.

What is the month with the highest UV index in Boston?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Boston.

How high is the UV index in August in Boston?

The average daily maximum UV index in August in Boston, New York, is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Boston, NY

Average temperature in August - Boston, NY
  • Average high temperature in August: 75.9°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in August: 58.1°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in August
Boston, NY

Average pressure in August - Boston, NY
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Boston, NY

Average wind speed in August - Boston, NY
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in August
Boston, NY

Average humidity in August - Boston, NY
  • Average humidity in August: 80%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (79%).

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Average rainfall in August
Boston, NY

Average rainfall in August - Boston, NY
  • Average rainfall in August: 1.81"

The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is September (1.22").

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Average rainfall days in August
Boston, NY

Average rainfall days in August - Boston, NY
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is October (17.2 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in August
Boston, NY

Average snowfall in August - Boston, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Boston, NY

Average snowfall days in August - Boston, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Boston, NY

Average daylight in August / Average sunshine in August - Boston, NY
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 10h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

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Average sunshine days in August
Boston, NY

Average sunshine days in August - Boston, NY
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (8.6 days).

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Average UV index in August
Boston, NY

Average UV index in August - Boston, NY
  • Average UV index in August: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

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Average cloud cover in August
Boston, NY

Average cloud cover in August - Boston, NY
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in August
Boston, NY

Average visibility in August - Boston, NY
  • Average visibility in August: 6mi

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

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Boston, New York, USA

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