August weather forecast
Boston, IN

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Weather in August

August, the last month of the summer in Boston, is another warm month, with an average temperature fluctuating between 62.1°F (16.7°C) and 79.3°F (26.3°C).

Temperature

August's onset sees an average high-temperature of a still moderately hot 79.3°F (26.3°C), exhibiting a slight fluctuation from the previous month. Throughout the month of August, the nighttime temperature dips to an average of 62.1°F (16.7°C).

Humidity

The average relative humidity in August is 82%.

Rainfall

In Boston, in August, it is raining for 14.5 days, with typically 2.01" (51mm) of accumulated precipitation. In Boston, during the entire year, the rain falls for 154.1 days and collects up to 23.74" (603mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Boston, the average length of the day in August is 13h and 41min.
On the first day of August in Boston, sunrise is at 6:39 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 8:11 pm EDT.

Sunshine

The average sunshine in August is 9.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

Boston in August has an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 62.1°F (16.7°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is appraised at 86°F (30°C).

What is the average humidity in August?

The average relative humidity in August is 82%.

How much does it rain in August?

In Boston, in August, it is raining for 14.5 days, with typically 2.01" (51mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does Boston have in August?

The average day length in August in Boston is 13h and 41min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:39 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 8:11 pm EDT.

How long on average sun shines in August?

In Boston, the average sunshine duration in August is 9.8h.

When is the highest UV index?

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

What is the UV index intensity in August?

In Boston, Indiana, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
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, IN

Average temperature in August - Boston, IN
  • Average high temperature in August: 79.3°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in August: 62.1°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in August
Boston, IN

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

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Boston, IN

Average wind speed in August - Boston, IN
  • Average wind speed in August: 5.8mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in August
Boston, IN

Average humidity in August - Boston, IN
  • Average humidity in August: 82%

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (75%).

Average rainfall in August
Boston, IN

Average rainfall in August - Boston, IN
  • Average rainfall in August: 2.01"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is November (1.5").

Average rainfall days in August
Boston, IN

Average rainfall days in August - Boston, IN
  • Average rainfall days in August: 14.5 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (7.4 days).

Average snowfall in August
Boston, IN

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

The month with the highest snowfall is December (2.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Boston, IN

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

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Boston, IN
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 9h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in August
Boston, IN

Average sunshine days in August - Boston, IN
  • Average sunshine days in August: 13 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (9.8 days).

Average UV index in August
Boston, IN

Average UV index in August - Boston, IN
  • Average UV index in August: 6

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, October, November and December (UV index 2).

Average cloud cover in August
Boston, IN

Average cloud cover in August - Boston, IN
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in August
Boston, IN

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

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).

Boston, Indiana, USA

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