Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
A minimal variation is noted in Boston's average high-temperature at the onset of August, reaching a still moderately hot 75.9°F (24.4°C) from July's 77.2°F (25.1°C). Boston cools down to an average low-temperature of 58.1°F (14.5°C) throughout the month of August.Humidity
In August, the average relative humidity 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
June through September are months without snowfall.Daylight
In Boston, the average length of the day in August 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
The months with the most sunshine are July and August, with an average of 10.1h of sunshine.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 5 in August transforms into this advice:
Put precautions into practice - Guidance to elude sunburn is provided. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Boston have in August?
What time are sunrise and sunset in August?
What is the month with the most sunshine?
How many hours of sunshine does Boston have in August?
What are the months with the highest UV index?
What is the UV index reading in August?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Boston, New York, USA
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